├── .github
    └── workflows
    │   └── stale.yml
├── .gitignore
├── CHANGELOG.md
├── Dockerfile
├── LICENSE
├── README.md
├── bms.py
├── config.yaml
├── constants.py
├── docker-compose.yaml
├── icon.png
├── pace-bms-dev
    ├── CHANGELOG.md
    ├── Dockerfile
    ├── bms.py
    ├── config.yaml
    ├── constants.py
    ├── docker-compose.yaml
    ├── icon.png
    ├── requirements.txt
    └── run.sh
├── pace-bms-ports.png
├── repository.yaml
├── requirements.txt
├── run.sh
└── volta-sg1-bms-dev
    ├── CHANGELOG.md
    ├── Dockerfile
    ├── bms.py
    ├── config.yaml
    ├── constants.py
    ├── docker-compose.yaml
    ├── icon.png
    ├── requirements.txt
    └── run.sh


/.github/workflows/stale.yml:
--------------------------------------------------------------------------------
 1 | # This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
 2 | #
 3 | # You can adjust the behavior by modifying this file.
 4 | # For more information, see:
 5 | # https://github.com/actions/stale
 6 | name: Mark stale issues and pull requests
 7 | 
 8 | on:
 9 |   schedule:
10 |   - cron: '0 20 * * *'
11 | 
12 | jobs:
13 |   stale:
14 | 
15 |     runs-on: ubuntu-latest
16 |     permissions:
17 |       issues: write
18 |       pull-requests: write
19 | 
20 |     steps:
21 |     - uses: actions/stale@v8
22 |       with:
23 |         repo-token: ${{ secrets.GITHUB_TOKEN }}
24 |         stale-issue-message: 'This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 5 days.'
25 |         stale-pr-message: 'This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
26 |         close-issue-message: 'This issue was closed because it has been stalled for 5 days with no activity.'
27 |         close-pr-message: 'This PR was closed because it has been stalled for 10 days with no activity.'
28 |         days-before-issue-stale: 45
29 |         days-before-pr-stale: 60
30 |         days-before-issue-close: 5
31 |         days-before-pr-close: 10
32 |         stale-issue-label: 'no-issue-activity'
33 |         stale-pr-label: 'no-pr-activity'
34 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | __pycache__/
2 | venv/
3 | 


--------------------------------------------------------------------------------
/CHANGELOG.md:
--------------------------------------------------------------------------------
 1 | WARNING: Breaking Changes! As of version 2.0.0 each pack (battery) will be pre-fixed with its pack number. 
 2 | <br>
 3 | Use at own risk!! 
 4 | <br>
 5 | This is to support multiple packs. 
 6 | <br>
 7 | Additional data is now being retrieved, including warning, balancing, status indications, etc. 
 8 | <br>
 9 | This script excludes COMMANDS and should only retrieve data. Nonetheless the author accepts no reponsibility whatsoever of your use, in any way, of this script / addon. Again, USE AT OWN RISK!
10 | <br>
11 | <h1>Changelog</h1>
12 | <h2>v2.2.0</h2>
13 | Added a calculated cell maximum voltage difference (highest cell voltage - smallest cell voltage)
14 | Rewrite Dockerfile to cache library dependencies to speed up future builds. (thanks jpmeijers)
15 | Add docker-compose.yaml to run using docker compose, with auto restarting. (thanks jpmeijers)
16 | Bugfix - Removing any spaces in the serial numbers to prevent HA unique identifiers having spaces
17 | <h2>v2.1.0</h2>
18 | Fix for multiple packs not parsed correctly in some instances. 
19 | Abbreviated some warning info to help prevent exceeding HAs character limits
20 | <h2>v2.0.4</h2>
21 | Balance data should be base 16, not 8.
22 | <h2>v2.0.3</h2>
23 | Possible bugfix for larger banks reading incorrect analog data
24 | <h2>v2.0.2</h2>
25 | Naming fixes. Possible fix for native and USB serial devices
26 | <h2>v2.0.1</h2>
27 | Bug fixs
28 | <h2>v2.0.0</h2> Major rewrite using the official Pace RS232 Protocol Definition. Breaking changes including prefixing most data with its Pack number (to support multiple batteries in parallel). Temperatures values are now retrieved without names, in my case the first 4 values are cell temperatures, temp 5 the MOSFET, and temp 6 is ambient / environment.
29 | <h1>Known / possible issues</h1>
30 | The overall Pack data collected under the root MQTT topic seems to follow the data of the first battery in the Pack.


--------------------------------------------------------------------------------
/Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM python:3.9-alpine
 2 | 
 3 | ENV WORK_DIR=workdir \
 4 |   HASSIO_DATA_PATH=/data
 5 | 
 6 | RUN mkdir -p ${WORK_DIR}
 7 | WORKDIR /${WORK_DIR}
 8 | COPY requirements.txt .
 9 | 
10 | # install python libraries
11 | RUN pip3 install -r requirements.txt
12 | 
13 | # Copy code
14 | COPY bms.py constants.py run.sh ./
15 | RUN chmod a+x run.sh
16 | 
17 | CMD [ "sh", "./run.sh" ]
18 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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674 | <https://www.gnu.org/licenses/why-not-lgpl.html>.
675 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # BMS Pace - Python data retrieval
 2 | ## NB: This script(s) is no longer actively being developed. Feel free to fork.
 3 | Pace Battery Management System
 4 | Features:
 5 | * Compatible as a Home Assistant Add-on, see https://www.home-assistant.io/common-tasks/os#installing-third-party-add-ons
 6 | * Cell voltages
 7 | * Temperatures
 8 | * State of charge (SOC)
 9 | * State of health (SOH)
10 | * Warnings & faults
11 | * State indications
12 | * Cell balancing state
13 | * and many more.....
14 | 
15 | ## 1. Important
16 | 
17 | This addon comes with absolutely no guarantees whatsoever. Use at own risk.  
18 | Feel free to fork and expand!
19 | 
20 | ## 2. Confirmed working with
21 | Many brands using the PACE BMS, including:
22 | * Greenrich U-P5000
23 | * Hubble Lithium (AM2, AM4, X-101)
24 | * Revov R100, R9
25 | * SOK 48V (100Ah)
26 | * YouthPower Rack Module 48V 100AH 4U-5U Lifepo4
27 | * Allith 10kW LifePo4
28 | * Joyvoit BW5KW
29 | * etc.......
30 | 
31 | If your ports look something like this, its likely a PACE BMS:
32 | 
33 | ![PACE BMS Ports](https://github.com/Tertiush/bmspace/blob/main/pace-bms-ports.png?raw=true)
34 | 
35 | ## 3. Configuring
36 | **Currently the DEV version is the most capable, and should work for most.**
37 | ### 3.1 Manually
38 | Install the pre-requisites as per requirements.txt. Then edit the config.yaml file to suit your needs and run the script bms.py
39 | NB: Tested with Python 3.9. Should work on later version as well.
40 | 
41 | ### 3.2 Home Assistant
42 | All configuration options are available from within Home Assistant.
43 | 
44 | ### 3.3 Notes on configuration options
45 | * **debug_output**: Options are 0 for minimal, 1 for minor errors such as checksums, 2-3 for more severe debug logs.
46 | * **force_pack_offset**: This is currently available in the development version. This offset is used to force a defined offset between the data read from **multiple packs**. If you have more than one pack and only the first is read successfully, you can force an offset here to get subsequent packs to read in successfully. Default is 0, multiple of 2 (e.g. 2, 4, 6....) may work. As large as 20 has been used in one instance.
47 | * **zero_pad_number_cells**: Adds leading 0's to the cell voltages, forcing then to display sequential in some dasboarding tools. E.g. setting this to 2 will display voltages as cell_01 rahter than cell_1.
48 | * **zero_pad_number_packs**: Same as for _cells padding above.
49 | 
50 | ## 4. RJ11 Interface (Typical, confirm your own model!)
51 | 
52 | When viewed into the RJ11 socket, tab to the bottom, pins are ordered:  
53 | 1:NC 2:GND 3:BMS_Tx 4:BMS_Rx 5:GND 6:NC
54 | 
55 | Either a direct serial interface from your hardware, a USB to serial, or a network connected TCP server device will work. 
56 | Note the voltage levels are normal RS232 (and not TTL / 5V or something else). 
57 | 


--------------------------------------------------------------------------------
/bms.py:
--------------------------------------------------------------------------------
   1 | 
   2 | 
   3 | import paho.mqtt.client as mqtt
   4 | import socket
   5 | import time
   6 | import yaml
   7 | import os
   8 | import json
   9 | import serial
  10 | import io
  11 | import json
  12 | import atexit
  13 | import sys
  14 | import constants
  15 | 
  16 | print("Starting up...")
  17 | 
  18 | config = {}
  19 | 
  20 | if os.path.exists('/data/options.json'):
  21 |     print("Loading options.json")
  22 |     with open(r'/data/options.json') as file:
  23 |         config = json.load(file)
  24 |         print("Config: " + json.dumps(config))
  25 | 
  26 | elif os.path.exists('config.yaml'):
  27 |     print("Loading config.yaml")
  28 |     with open(r'config.yaml') as file:
  29 |         config = yaml.load(file, Loader=yaml.FullLoader)['options']
  30 |         
  31 | else:
  32 |     sys.exit("No config file found")  
  33 | 
  34 | 
  35 | scan_interval = config['scan_interval']
  36 | connection_type = config['connection_type']
  37 | bms_serial = config['bms_serial']
  38 | ha_discovery_enabled = config['mqtt_ha_discovery']
  39 | code_running = True
  40 | bms_connected = False
  41 | mqtt_connected = False
  42 | print_initial = True
  43 | debug_output = config['debug_output']
  44 | disc_payload = {}
  45 | repub_discovery = 0
  46 | 
  47 | bms_version = ''
  48 | bms_sn = ''
  49 | pack_sn = ''
  50 | packs = 1
  51 | cells = 13
  52 | temps = 6
  53 | 
  54 | 
  55 | print("Connection Type: " + connection_type)
  56 | 
  57 | def on_connect(client, userdata, flags, rc):
  58 |     print("MQTT connected with result code "+str(rc))
  59 |     client.will_set(config['mqtt_base_topic'] + "/availability","offline", qos=0, retain=False)
  60 |     global mqtt_connected
  61 |     mqtt_connected = True
  62 | 
  63 | def on_disconnect(client, userdata, rc):
  64 |     print("MQTT disconnected with result code "+str(rc))
  65 |     global mqtt_connected
  66 |     mqtt_connected = False
  67 | 
  68 | 
  69 | client = mqtt.Client()
  70 | client.on_connect = on_connect
  71 | client.on_disconnect = on_disconnect
  72 | #client.on_message = on_message
  73 | 
  74 | client.username_pw_set(username=config['mqtt_user'], password=config['mqtt_password'])
  75 | client.connect(config['mqtt_host'], config['mqtt_port'], 60)
  76 | client.loop_start()
  77 | time.sleep(2)
  78 | 
  79 | def exit_handler():
  80 |     print("Script exiting")
  81 |     client.publish(config['mqtt_base_topic'] + "/availability","offline")
  82 |     return
  83 | 
  84 | atexit.register(exit_handler)
  85 | 
  86 | def bms_connect(address, port):
  87 | 
  88 |     if connection_type == "Serial":
  89 | 
  90 |         try:
  91 |             print("trying to connect %s" % bms_serial)
  92 |             s = serial.Serial(bms_serial,timeout = 1)
  93 |             print("BMS serial connected")
  94 |             return s, True
  95 |         except IOError as msg:
  96 |             print("BMS serial error connecting: %s" % msg)
  97 |             return False, False    
  98 | 
  99 |     else:
 100 | 
 101 |         try:
 102 |             print("trying to connect " + address + ":" + str(port))
 103 |             s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 104 |             s.settimeout(2)
 105 |             s.connect((address, port))
 106 |             print("BMS socket connected")
 107 |             return s, True
 108 |         except OSError as msg:
 109 |             print("BMS socket error connecting: %s" % msg)
 110 |             return False, False
 111 | 
 112 | def bms_sendData(comms,request=''):
 113 | 
 114 |     if connection_type == "Serial":
 115 | 
 116 |         try:
 117 |             if len(request) > 0:
 118 |                 comms.write(request)
 119 |                 time.sleep(0.25)
 120 |                 return True
 121 |         except IOError as e:
 122 |             print("BMS serial error: %s" % e)
 123 |             # global bms_connected
 124 |             return False
 125 | 
 126 |     else:
 127 | 
 128 |         try:
 129 |             if len(request) > 0:
 130 |                 comms.send(request)
 131 |                 time.sleep(0.25)
 132 |                 return True
 133 |         except Exception as e:
 134 |             print("BMS socket error: %s" % e)
 135 |             # global bms_connected
 136 |             return False
 137 | 
 138 | def bms_get_data(comms):
 139 |     try:
 140 |         if connection_type == "Serial":
 141 |             inc_data = comms.readline()
 142 |         else:
 143 |             temp = comms.recv(4096)
 144 |             temp2 = temp.split(b'\r')
 145 |             # Decide which one to take:
 146 |             for element in range(0,len(temp2)):
 147 |                 SOI = hex(ord(temp2[element][0:1]))
 148 |                 if SOI == '0x7e':
 149 |                     inc_data = temp2[element] + b'\r'
 150 |                     break
 151 | 
 152 |             if (len(temp2) > 2) & (debug_output > 0):
 153 |                 print("Multiple EOIs detected")
 154 |                 print("...for incoming data: " + str(temp) + " |Hex: " + str(temp.hex(' ')))
 155 |         return inc_data
 156 |     except Exception as e:
 157 |         print("BMS socket receive error: %s" % e)
 158 |         # global bms_connected
 159 |         return False
 160 | 
 161 | def ha_discovery():
 162 | 
 163 |     global ha_discovery_enabled
 164 |     global packs
 165 | 
 166 |     if ha_discovery_enabled:
 167 |         
 168 |         print("Publishing HA Discovery topic...")
 169 | 
 170 |         disc_payload['availability_topic'] = config['mqtt_base_topic'] + "/availability"
 171 | 
 172 |         device = {}
 173 |         device['manufacturer'] = "BMS Pace"
 174 |         device['model'] = "AM-x"
 175 |         device['identifiers'] = "bmspace_" + bms_sn
 176 |         device['name'] = "Generic Lithium"
 177 |         device['sw_version'] = bms_version
 178 |         disc_payload['device'] = device
 179 | 
 180 |         for p in range (1,packs+1):
 181 | 
 182 |             for i in range(0,cells):
 183 |                 disc_payload['name'] = "Pack " + str(p) + " Cell " + str(i+1) + " Voltage"
 184 |                 disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_v_cell_" + str(i+1)
 185 |                 disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_cells/cell_" + str(i+1)
 186 |                 disc_payload['unit_of_measurement'] = "mV"
 187 |                 client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 188 | 
 189 |             for i in range(0,temps):
 190 |                 disc_payload['name'] = "Pack " + str(p) + " Temperature " + str(i+1)
 191 |                 disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_temp_" + str(i+1)
 192 |                 disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/temps/temp_" + str(i+1)
 193 |                 disc_payload['unit_of_measurement'] = "°C"
 194 |                 client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 195 | 
 196 |             # disc_payload['name'] = "MOS_Temp"
 197 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_t_mos"
 198 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/t_mos"
 199 |             # disc_payload['unit_of_measurement'] = "°C"
 200 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'] + "/config",json.dumps(disc_payload),qos=0, retain=True)
 201 | 
 202 |             # disc_payload['name'] = "Environmental_Temp"
 203 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_t_env"
 204 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/t_env"
 205 |             # disc_payload['unit_of_measurement'] = "°C"
 206 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'] + "/config",json.dumps(disc_payload),qos=0, retain=True)
 207 | 
 208 |             disc_payload['name'] = "Pack " + str(p) + " Current"
 209 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_pack"
 210 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_pack"
 211 |             disc_payload['unit_of_measurement'] = "A"
 212 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 213 | 
 214 |             disc_payload['name'] = "Pack " + str(p) + " Voltage"
 215 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_v_pack"
 216 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_pack"
 217 |             disc_payload['unit_of_measurement'] = "V"
 218 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 219 | 
 220 |             disc_payload['name'] = "Pack " + str(p) + " Remaining Capacity"
 221 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_remain_cap"
 222 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_remain_cap"
 223 |             disc_payload['unit_of_measurement'] = "mAh"
 224 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 225 | 
 226 |             disc_payload['name'] = "Pack " + str(p) + " State of Health"
 227 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_soh"
 228 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/soh"
 229 |             disc_payload['unit_of_measurement'] = "%"
 230 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 231 | 
 232 |             disc_payload['name'] = "Pack " + str(p) + " Cycles"
 233 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_cycles"
 234 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/cycles"
 235 |             disc_payload['unit_of_measurement'] = ""
 236 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 237 | 
 238 |             disc_payload['name'] = "Pack " + str(p) + " Full Capacity"
 239 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_full_cap"
 240 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_full_cap"
 241 |             disc_payload['unit_of_measurement'] = "mAh"
 242 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 243 | 
 244 |             disc_payload['name'] = "Pack " + str(p) + " Design Capacity"
 245 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_design_cap"
 246 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_design_cap"
 247 |             disc_payload['unit_of_measurement'] = "mAh"
 248 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 249 | 
 250 |             disc_payload['name'] = "Pack " + str(p) + " State of Charge"
 251 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_soc"
 252 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/soc"
 253 |             disc_payload['unit_of_measurement'] = "%"
 254 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 255 | 
 256 |             disc_payload['name'] = "Pack " + str(p) + " State of Health"
 257 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_soh"
 258 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/soh"
 259 |             disc_payload['unit_of_measurement'] = "%"
 260 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 261 | 
 262 | 
 263 |             disc_payload.pop('unit_of_measurement')
 264 | 
 265 |             disc_payload['name'] = "Pack " + str(p) + " Warnings"
 266 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_warnings"
 267 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/warnings"
 268 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 269 | 
 270 |             disc_payload['name'] = "Pack " + str(p) + " Balancing1"
 271 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_balancing1"
 272 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing1"
 273 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 274 | 
 275 |             disc_payload['name'] = "Pack " + str(p) + " Balancing2"
 276 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_balancing2"
 277 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing2"
 278 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 279 | 
 280 | 
 281 |             # Binary Sensors
 282 |             disc_payload['name'] = "Pack " + str(p) + " Protection Short Circuit"
 283 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_prot_short_circuit"
 284 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_short_circuit"
 285 |             disc_payload['payload_on'] = "1"
 286 |             disc_payload['payload_off'] = "0"
 287 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 288 | 
 289 |             disc_payload['name'] = "Pack " + str(p) + " Protection Discharge Current"
 290 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_prot_discharge_current"
 291 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_discharge_current"
 292 |             disc_payload['payload_on'] = "1"
 293 |             disc_payload['payload_off'] = "0"
 294 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 295 | 
 296 |             disc_payload['name'] = "Pack " + str(p) + " Protection Charge Current"
 297 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_prot_charge_current"
 298 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_charge_current"
 299 |             disc_payload['payload_on'] = "1"
 300 |             disc_payload['payload_off'] = "0"
 301 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 302 | 
 303 |             disc_payload['name'] = "Pack " + str(p) + " Current Limit"
 304 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_current_limit"
 305 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/current_limit"
 306 |             disc_payload['payload_on'] = "1"
 307 |             disc_payload['payload_off'] = "0"
 308 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 309 | 
 310 |             disc_payload['name'] = "Pack " + str(p) + " Charge FET"
 311 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_charge_fet"
 312 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/charge_fet"
 313 |             disc_payload['payload_on'] = "1"
 314 |             disc_payload['payload_off'] = "0"
 315 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 316 | 
 317 |             disc_payload['name'] = "Pack " + str(p) + " Discharge FET"
 318 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_discharge_fet"
 319 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/discharge_fet"
 320 |             disc_payload['payload_on'] = "1"
 321 |             disc_payload['payload_off'] = "0"
 322 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 323 | 
 324 |             disc_payload['name'] = "Pack " + str(p) + " Pack Indicate"
 325 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_pack_indicate"
 326 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/pack_indicate"
 327 |             disc_payload['payload_on'] = "1"
 328 |             disc_payload['payload_off'] = "0"
 329 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 330 | 
 331 |             disc_payload['name'] = "Pack " + str(p) + " Reverse"
 332 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_reverse"
 333 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/reverse"
 334 |             disc_payload['payload_on'] = "1"
 335 |             disc_payload['payload_off'] = "0"
 336 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 337 | 
 338 |             disc_payload['name'] = "Pack " + str(p) + " AC In"
 339 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_ac_in"
 340 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/ac_in"
 341 |             disc_payload['payload_on'] = "1"
 342 |             disc_payload['payload_off'] = "0"
 343 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 344 | 
 345 |             disc_payload['name'] = "Pack " + str(p) + " Heart"
 346 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_heart"
 347 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/heart"
 348 |             disc_payload['payload_on'] = "1"
 349 |             disc_payload['payload_off'] = "0"
 350 |             client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 351 | 
 352 |             disc_payload['name'] = "Pack " + str(p) + " Cell Max Volt Diff"
 353 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_cells_max_diff_calc"
 354 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/cells_max_diff_calc"
 355 |             disc_payload['unit_of_measurement'] = "mV"
 356 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 357 | 
 358 |             # Pack data
 359 |             disc_payload.pop('payload_on')
 360 |             disc_payload.pop('payload_off')
 361 | 
 362 |             disc_payload['name'] = "Pack Remaining Capacity"
 363 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_i_remain_cap"
 364 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_remain_cap"
 365 |             disc_payload['unit_of_measurement'] = "mAh"
 366 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 367 | 
 368 |             disc_payload['name'] = "Pack Full Capacity"
 369 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_i_full_cap"
 370 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_full_cap"
 371 |             disc_payload['unit_of_measurement'] = "mAh"
 372 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 373 | 
 374 |             disc_payload['name'] = "Pack Design Capacity"
 375 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_i_design_cap"
 376 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_design_cap"
 377 |             disc_payload['unit_of_measurement'] = "mAh"
 378 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 379 | 
 380 |             disc_payload['name'] = "Pack State of Charge"
 381 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_soc"
 382 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_soc"
 383 |             disc_payload['unit_of_measurement'] = "%"
 384 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 385 | 
 386 |             disc_payload['name'] = "Pack State of Health"
 387 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_soh"
 388 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_soh"
 389 |             disc_payload['unit_of_measurement'] = "%"
 390 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 391 | 
 392 |     else:
 393 |         print("HA Discovery Disabled")
 394 | 
 395 | def chksum_calc(data):
 396 | 
 397 |     global debug_output
 398 |     chksum = 0
 399 | 
 400 |     try:
 401 | 
 402 |         for element in range(1, len(data)): #-5):
 403 |             chksum += (data[element])
 404 |         
 405 |         chksum = chksum % 65536
 406 |         chksum = '{0:016b}'.format(chksum)
 407 |     
 408 |         flip_bits = '' 
 409 |         for i in chksum:
 410 |             if i == '0':
 411 |                 flip_bits += '1'
 412 |             else:
 413 |                 flip_bits += '0'
 414 | 
 415 |         chksum = flip_bits
 416 |         chksum = int(chksum,2)+1
 417 | 
 418 |         chksum = format(chksum, 'X')
 419 | 
 420 |     except Exception as e:
 421 |         if debug_output > 0:
 422 |             print("Error calculating CHKSUM using data: " + data)
 423 |             print("Error details: ", str(e))
 424 |         return(False)
 425 | 
 426 |     return(chksum)
 427 | 
 428 | def cid2_rtn(rtn):
 429 | 
 430 |     # RTN Reponse codes, looking for errors
 431 |     if rtn == b'00':
 432 |         return False, False
 433 |     elif rtn == b'01':
 434 |         return True, "RTN Error 01: Undefined RTN error"
 435 |     elif rtn == b'02':
 436 |         return True, "RTN Error 02: CHKSUM error"
 437 |     elif rtn == b'03':
 438 |         return True, "RTN Error 03: LCHKSUM error"
 439 |     elif rtn == b'04':
 440 |         return True, "RTN Error 04: CID2 undefined"
 441 |     elif rtn == b'05':
 442 |         return True, "RTN Error 05: Undefined error"
 443 |     elif rtn == b'06':
 444 |         return True, "RTN Error 06: Undefined error"
 445 |     elif rtn == b'09':
 446 |         return True, "RTN Error 09: Operation or write error"
 447 |     else:
 448 |         return False, False
 449 | 
 450 | def bms_parse_data(inc_data):
 451 | 
 452 |     global debug_output
 453 | 
 454 |     #inc_data = b'~2501460070DC00020D100A0FF40FEA100E10040FF50FFD10010FFD0FE50FF5100A1001060BD20BD20BD40BD40BF80C1AFF7ECFCF258B02271001372710600D0FFA0FFC0FFB0FFC0FFE0FFB0FFA0FFA0FFB0FFD0FFC0FFB0FFB060BEF0BF10BEF0BED0BF70C04FDB1D02E29A9022AF80\r'
 455 |     
 456 |     try:
 457 |         
 458 |         SOI = hex(ord(inc_data[0:1]))
 459 |         if SOI != '0x7e':
 460 |             return(False,"Incorrect starting byte for incoming data")
 461 | 
 462 |         if debug_output > 1:
 463 |             print("SOI: ", SOI)
 464 |             print("VER: ", inc_data[1:3])
 465 |             print("ADR: ", inc_data[3:5])
 466 |             print("CID1 (Type): ", inc_data[5:7])
 467 | 
 468 |         RTN = inc_data[7:9]
 469 |         error, info = cid2_rtn(RTN)
 470 |         if error:
 471 |             print(error)
 472 |             raise Exception(error)
 473 |         
 474 |         LCHKSUM = inc_data[9]
 475 | 
 476 |         if debug_output > 1:
 477 |             print("RTN: ", RTN)
 478 |             print("LENGTH: ", inc_data[9:13])
 479 |             print(" - LCHKSUM: ", LCHKSUM)
 480 |             print(" - LENID: ", inc_data[10:13])
 481 | 
 482 |         LENID = int(inc_data[10:13],16) #amount of bytes, i.e. 2x hex
 483 | 
 484 |         calc_LCHKSUM = lchksum_calc(inc_data[10:13])
 485 |         if calc_LCHKSUM == False:
 486 |             return(False,"Error calculating LCHKSUM for incoming data")
 487 | 
 488 |         if LCHKSUM != ord(calc_LCHKSUM):
 489 |             if debug_output > 0:
 490 |                 print("LCHKSUM received: " + str(LCHKSUM) + " does not match calculated: " + str(ord(calc_LCHKSUM)))
 491 |             return(False,"LCHKSUM received: " + str(LCHKSUM) + " does not match calculated: " + str(ord(calc_LCHKSUM)))
 492 | 
 493 |         if debug_output > 1:
 494 |             print(" - LENID (int): ", LENID)
 495 | 
 496 |         INFO = inc_data[13:13+LENID]
 497 | 
 498 |         if debug_output > 1:
 499 |             print("INFO: ", INFO)
 500 | 
 501 |         CHKSUM = inc_data[13+LENID:13+LENID+4]
 502 | 
 503 |         if debug_output > 1:
 504 |             print("CHKSUM: ", CHKSUM)
 505 |             #print("EOI: ", hex(inc_data[13+LENID+4]))
 506 | 
 507 |         calc_CHKSUM = chksum_calc(inc_data[:len(inc_data)-5])
 508 | 
 509 | 
 510 |         if debug_output > 1:
 511 |             print("Calc CHKSUM: ", calc_CHKSUM)
 512 |     except Exception as e:
 513 |         if debug_output > 0:
 514 |             print("Error1 calculating CHKSUM using data: ", inc_data)
 515 |         return(False,"Error1 calculating CHKSUM: " + str(e))
 516 | 
 517 |     if calc_CHKSUM == False:
 518 |         if debug_output > 0:
 519 |             print("Error2 calculating CHKSUM using data: ", inc_data)
 520 |         return(False,"Error2 calculating CHKSUM")
 521 | 
 522 |     if CHKSUM.decode("ASCII") == calc_CHKSUM:
 523 |         return(True,INFO)
 524 |     else:
 525 |         if debug_output > 0:
 526 |             print("Received and calculated CHKSUM does not match: Received: " + CHKSUM.decode("ASCII") + ", Calculated: " + calc_CHKSUM)
 527 |             print("...for incoming data: " + str(inc_data) + " |Hex: " + str(inc_data.hex(' ')))
 528 |             print("Length of incoming data as measured: " + str(len(inc_data)))
 529 |             print("SOI: ", SOI)
 530 |             print("VER: ", inc_data[1:3])
 531 |             print("ADR: ", inc_data[3:5])
 532 |             print("CID1 (Type): ", inc_data[5:7])
 533 |             print("RTN (decode!): ", RTN)
 534 |             print("LENGTH: ", inc_data[9:13])
 535 |             print(" - LCHKSUM: ", inc_data[9])
 536 |             print(" - LENID: ", inc_data[10:13])
 537 |             print(" - LENID (int): ", int(inc_data[10:13],16))
 538 |             print("INFO: ", INFO)
 539 |             print("CHKSUM: ", CHKSUM)
 540 |             #print("EOI: ", hex(inc_data[13+LENID+4]))
 541 |         return(False,"Checksum error")
 542 | 
 543 | def lchksum_calc(lenid):
 544 | 
 545 |     chksum = 0
 546 | 
 547 |     try:
 548 | 
 549 |         # for element in range(1, len(lenid)): #-5):
 550 |         #     chksum += (lenid[element])
 551 |         
 552 |         for element in range(0, len(lenid)):
 553 |             chksum += int(chr(lenid[element]),16)
 554 | 
 555 |         chksum = chksum % 16
 556 |         chksum = '{0:04b}'.format(chksum)
 557 | 
 558 |         flip_bits = '' 
 559 |         for i in chksum:
 560 |             if i == '0':
 561 |                 flip_bits += '1'
 562 |             else:
 563 |                 flip_bits += '0'
 564 | 
 565 |         chksum = flip_bits
 566 |         chksum = int(chksum,2)
 567 | 
 568 |         chksum += 1
 569 | 
 570 |         if chksum > 15:
 571 |             chksum = 0
 572 | 
 573 |         chksum = format(chksum, 'X')
 574 | 
 575 |     except:
 576 | 
 577 |         print("Error calculating LCHKSUM using LENID: ", lenid)
 578 |         return(False)
 579 | 
 580 |     return(chksum)
 581 | 
 582 | def bms_request(bms, ver=b"\x32\x35",adr=b"\x30\x31",cid1=b"\x34\x36",cid2=b"\x43\x31",info=b"",LENID=False):
 583 | 
 584 |     global bms_connected
 585 |     global debug_output
 586 |     
 587 |     request = b'\x7e'
 588 |     request += ver
 589 |     request += adr
 590 |     request += cid1
 591 |     request += cid2
 592 | 
 593 |     if not(LENID):
 594 |         LENID = len(info)
 595 |         #print("Length: ", LENID)
 596 |         LENID = bytes(format(LENID, '03X'), "ASCII")
 597 | 
 598 |     #print("LENID: ", LENID)
 599 | 
 600 |     if LENID == b'000':
 601 |         LCHKSUM = '0'
 602 |     else:
 603 |         LCHKSUM = lchksum_calc(LENID)
 604 |         if LCHKSUM == False:
 605 |             return(False,"Error calculating LCHKSUM)")
 606 |     #print("LCHKSUM: ", LCHKSUM)
 607 |     request += bytes(LCHKSUM, "ASCII")
 608 |     request += LENID
 609 |     request += info
 610 |     CHKSUM = bytes(chksum_calc(request), "ASCII")
 611 |     if CHKSUM == False:
 612 |         return(False,"Error calculating CHKSUM)")
 613 |     request += CHKSUM
 614 |     request += b'\x0d'
 615 | 
 616 |     if debug_output > 2:
 617 |         print("-> Outgoing Data: ", request)
 618 | 
 619 |     if not bms_sendData(bms,request):
 620 |         bms_connected = False
 621 |         print("Error, connection to BMS lost")
 622 |         return(False,"Error, connection to BMS lost")
 623 | 
 624 |     inc_data = bms_get_data(bms)
 625 | 
 626 |     if inc_data == False:
 627 |         print("Error retrieving data from BMS")
 628 |         return(False,"Error retrieving data from BMS")
 629 | 
 630 |     if debug_output > 2:
 631 |         print("<- Incoming data: ", inc_data)
 632 | 
 633 |     success, INFO = bms_parse_data(inc_data)
 634 | 
 635 |     return(success, INFO)
 636 | 
 637 | def bms_getPackNumber(bms):
 638 | 
 639 |     success, INFO = bms_request(bms,cid2=constants.cid2PackNumber)
 640 | 
 641 |     if success == False:
 642 |         return(False,INFO)    
 643 | 
 644 |     try:
 645 |         packNumber = int(INFO,16)
 646 |     except:
 647 |         print("Error extracting total battery count in pack")
 648 |         return(False,"Error extracting total battery count in pack")
 649 | 
 650 |     return(success,packNumber)
 651 | 
 652 | def bms_getVersion(comms):
 653 | 
 654 |     global bms_version
 655 | 
 656 |     success, INFO = bms_request(bms,cid2=constants.cid2SoftwareVersion)
 657 | 
 658 |     if success == False:
 659 |         return(False,INFO)
 660 | 
 661 |     try:
 662 | 
 663 |         bms_version = bytes.fromhex(INFO.decode("ascii")).decode("ASCII")
 664 |         client.publish(config['mqtt_base_topic'] + "/bms_version",bms_version)
 665 |         print("BMS Version: " + bms_version)
 666 |     except:
 667 |         return(False,"Error extracting BMS version")
 668 | 
 669 |     return(success,bms_version)
 670 | 
 671 | def bms_getSerial(comms):
 672 | 
 673 |     global bms_sn
 674 |     global pack_sn
 675 | 
 676 |     success, INFO = bms_request(bms,cid2=constants.cid2SerialNumber)
 677 | 
 678 |     if success == False:
 679 |         print("Error: " + INFO)
 680 |         return(False,INFO, False)
 681 | 
 682 |     try:
 683 | 
 684 |         bms_sn = bytes.fromhex(INFO[0:30].decode("ascii")).decode("ASCII").replace(" ", "")
 685 |         pack_sn = bytes.fromhex(INFO[40:68].decode("ascii")).decode("ASCII").replace(" ", "")
 686 |         client.publish(config['mqtt_base_topic'] + "/bms_sn",bms_sn)
 687 |         client.publish(config['mqtt_base_topic'] + "/pack_sn",pack_sn)
 688 |         print("BMS Serial Number: " + bms_sn)
 689 |         print("Pack Serial Number: " + pack_sn)
 690 | 
 691 |     except:
 692 |         return(False,"Error extracting BMS version", False)
 693 | 
 694 |     return(success,bms_sn,pack_sn)
 695 | 
 696 | def bms_getAnalogData(bms,batNumber):
 697 | 
 698 |     global print_initial
 699 |     global cells
 700 |     global temps
 701 |     global packs
 702 |     byte_index = 2
 703 |     i_pack = []
 704 |     v_pack = []
 705 |     i_remain_cap = []
 706 |     i_design_cap = []
 707 |     cycles = []
 708 |     i_full_cap = []
 709 |     soc = []
 710 |     soh = []
 711 | 
 712 |     battery = bytes(format(batNumber, '02X'), 'ASCII')
 713 |     # print("Get analog info for battery: ", battery)
 714 | 
 715 |     success, inc_data = bms_request(bms,cid2=constants.cid2PackAnalogData,info=battery)
 716 | 
 717 |     if success == False:
 718 |         return(False,inc_data)
 719 | 
 720 |     try:
 721 | 
 722 |         packs = int(inc_data[byte_index:byte_index+2],16)
 723 |         if print_initial:
 724 |             print("Packs: " + str(packs))
 725 |         byte_index += 2
 726 | 
 727 |         v_cell = {}
 728 |         t_cell = {}
 729 | 
 730 |         for p in range(1,packs+1):
 731 | 
 732 |             if p > 1:
 733 |                 cells_prev = cells
 734 | 
 735 |             cells = int(inc_data[byte_index:byte_index+2],16)
 736 | 
 737 |             #Possible remove this next test as were now testing for the INFOFLAG at the end
 738 |             if p > 1:
 739 |                 if cells != cells_prev:
 740 |                     byte_index += 2
 741 |                     cells = int(inc_data[byte_index:byte_index+2],16)
 742 |                     if cells != cells_prev:
 743 |                         print("Error parsing BMS analog data: Cannot read multiple packs")
 744 |                         return(False,"Error parsing BMS analog data: Cannot read multiple packs")
 745 | 
 746 |             if print_initial:
 747 |                 print("Pack " + str(p) + ", Total cells: " + str(cells))
 748 |             byte_index += 2
 749 |             
 750 |             cell_min_volt = 0
 751 |             cell_max_volt = 0
 752 | 
 753 |             for i in range(0,cells):
 754 |                 v_cell[(p-1,i)] = int(inc_data[byte_index:byte_index+4],16)
 755 |                 byte_index += 4
 756 |                 client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_cells/cell_" + str(i+1) ,str(v_cell[(p-1,i)]))
 757 |                 if print_initial:
 758 |                     print("Pack " + str(p) +", V Cell" + str(i+1) + ": " + str(v_cell[(p-1,i)]) + " mV")
 759 | 
 760 |                 #Calculate cell max and min volt
 761 |                 if i == 0:
 762 |                     cell_min_volt = v_cell[(p-1,i)]
 763 |                     cell_max_volt = v_cell[(p-1,i)]
 764 |                 else:
 765 |                     if v_cell[(p-1,i)] < cell_min_volt:
 766 |                         cell_min_volt = v_cell[(p-1,i)]
 767 |                     if v_cell[(p-1,i)] > cell_max_volt:
 768 |                         cell_max_volt = v_cell[(p-1,i)]
 769 |            
 770 |             #Calculate cells max diff volt
 771 |             cell_max_diff_volt = cell_max_volt - cell_min_volt
 772 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/cells_max_diff_calc" ,str(cell_max_diff_volt))
 773 |             if print_initial:
 774 |                 print("Pack " + str(p) +", Cell Max Diff Volt Calc: " + str(cell_max_diff_volt) + " mV")
 775 | 
 776 |             temps = int(inc_data[byte_index:byte_index + 2],16)
 777 |             if print_initial:
 778 |                 print("Pack " + str(p) + ", Total temperature sensors: " + str(temps))
 779 |             byte_index += 2
 780 | 
 781 |             for i in range(0,temps): #temps-2
 782 |                 t_cell[(p-1,i)] = (int(inc_data[byte_index:byte_index + 4],16)-2730)/10
 783 |                 byte_index += 4
 784 |                 client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/temps/temp_" + str(i+1) ,str(round(t_cell[(p-1,i)],1)))
 785 |                 if print_initial:
 786 |                     print("Pack " + str(p) + ", Temp" + str(i+1) + ": " + str(round(t_cell[(p-1,i)],1)) + " ℃")
 787 | 
 788 |             # t_mos= (int(inc_data[byte_index:byte_index+4],16))/160-273
 789 |             # client.publish(config['mqtt_base_topic'] + "/t_mos",str(round(t_mos,1)))
 790 |             # if print_initial:
 791 |             #     print("T Mos: " + str(t_mos) + " Deg")
 792 | 
 793 |             # t_env= (int(inc_data[byte_index:byte_index+4],16))/160-273
 794 |             # client.publish(config['mqtt_base_topic'] + "/t_env",str(round(t_env,1)))
 795 |             # offset += 7
 796 |             # if print_initial:
 797 |             #     print("T Env: " + str(t_env) + " Deg")
 798 | 
 799 |             i_pack.append(int(inc_data[byte_index:byte_index+4],16))
 800 |             byte_index += 4
 801 |             if i_pack[p-1] >= 32768:
 802 |                 i_pack[p-1] = -1*(65535 - i_pack[p-1])
 803 |             i_pack[p-1] = i_pack[p-1]/100
 804 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_pack",str(i_pack[p-1]))
 805 |             if print_initial:
 806 |                 print("Pack " + str(p) + ", I Pack: " + str(i_pack[p-1]) + " A")
 807 | 
 808 |             v_pack.append(int(inc_data[byte_index:byte_index+4],16)/1000)
 809 |             byte_index += 4
 810 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_pack",str(v_pack[p-1]))
 811 |             if print_initial:
 812 |                 print("Pack " + str(p) + ", V Pack: " + str(v_pack[p-1]) + " V")
 813 | 
 814 |             i_remain_cap.append(int(inc_data[byte_index:byte_index+4],16)*10)
 815 |             byte_index += 4
 816 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_remain_cap",str(i_remain_cap[p-1]))
 817 |             if print_initial:
 818 |                 print("Pack " + str(p) + ", I Remaining Capacity: " + str(i_remain_cap[p-1]) + " mAh")
 819 | 
 820 |             byte_index += 2 # Manual: Define number P = 3
 821 | 
 822 |             i_full_cap.append(int(inc_data[byte_index:byte_index+4],16)*10)
 823 |             byte_index += 4
 824 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_full_cap",str(i_full_cap[p-1]))
 825 |             if print_initial:
 826 |                 print("Pack " + str(p) + ", I Full Capacity: " + str(i_full_cap[p-1]) + " mAh")
 827 | 
 828 |             soc.append(round(i_remain_cap[p-1]/i_full_cap[p-1]*100,2))
 829 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/soc",str(soc[p-1]))
 830 |             if print_initial:
 831 |                 print("Pack " + str(p) + ", SOC: " + str(soc[p-1]) + " %")
 832 | 
 833 |             cycles.append(int(inc_data[byte_index:byte_index+4],16))
 834 |             byte_index += 4
 835 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/cycles",str(cycles[p-1]))
 836 |             if print_initial:
 837 |                 print("Pack " + str(p) + ", Cycles: " + str(cycles[p-1]))
 838 | 
 839 |             i_design_cap.append(int(inc_data[byte_index:byte_index+4],16)*10)
 840 |             byte_index += 4
 841 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_design_cap",str(i_design_cap[p-1]))
 842 |             if print_initial:
 843 |                 print("Pack " + str(p) + ", Design Capacity: " + str(i_design_cap[p-1]) + " mAh")
 844 | 
 845 |             soh.append(round(i_full_cap[p-1]/i_design_cap[p-1]*100,2))
 846 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/soh",str(soh[p-1]))
 847 |             if print_initial:
 848 |                 print("Pack " + str(p) + ", SOH: " + str(soh[p-1]) + " %")
 849 | 
 850 |             byte_index += 2
 851 | 
 852 |             #Test for non signed value (matching cell count), to skip possible INFOFLAG present in data
 853 |             if (byte_index < len(inc_data)) and (cells != int(inc_data[byte_index:byte_index+2],16)):
 854 |                 byte_index += 2
 855 | 
 856 |     except Exception as e:
 857 |         print("Error parsing BMS analog data: ", str(e))
 858 |         return(False,"Error parsing BMS analog data: " + str(e))
 859 | 
 860 |     if print_initial:
 861 |         print("Script running....")
 862 | 
 863 |     return True,True
 864 | 
 865 | def bms_getPackCapacity(bms):
 866 | 
 867 |     byte_index = 0
 868 | 
 869 |     success, inc_data = bms_request(bms,cid2=constants.cid2PackCapacity) # Seem to always reply with pack 1 data, even with ADR= 0 or FF and INFO= '' or FF
 870 | 
 871 |     if success == False:
 872 |         return(False,inc_data)
 873 | 
 874 |     try:
 875 | 
 876 |         pack_remain_cap = int(inc_data[byte_index:byte_index+4],16)*10
 877 |         byte_index += 4
 878 |         client.publish(config['mqtt_base_topic'] + "/pack_remain_cap",str(pack_remain_cap))
 879 |         if print_initial:
 880 |             print("Pack Remaining Capacity: " + str(pack_remain_cap) + " mAh")
 881 | 
 882 |         pack_full_cap = int(inc_data[byte_index:byte_index+4],16)*10
 883 |         byte_index += 4
 884 |         client.publish(config['mqtt_base_topic'] + "/pack_full_cap",str(pack_full_cap))
 885 |         if print_initial:
 886 |             print("Pack Full Capacity: " + str(pack_full_cap) + " mAh")
 887 | 
 888 |         pack_design_cap = int(inc_data[byte_index:byte_index+4],16)*10
 889 |         byte_index += 4
 890 |         client.publish(config['mqtt_base_topic'] + "/pack_design_cap",str(pack_design_cap))
 891 |         if print_initial:
 892 |             print("Pack Design Capacity: " + str(pack_design_cap) + " mAh")
 893 | 
 894 |         pack_soc = round(pack_remain_cap/pack_full_cap*100,2)
 895 |         client.publish(config['mqtt_base_topic'] + "/pack_soc",str(pack_soc))
 896 |         if print_initial:
 897 |             print("Pack SOC: " + str(pack_soc) + " %")
 898 | 
 899 |         pack_soh = round(pack_full_cap/pack_design_cap*100,2)
 900 |         client.publish(config['mqtt_base_topic'] + "/pack_soh",str(pack_soh))
 901 |         if print_initial:
 902 |             print("Pack SOH: " + str(pack_soh) + " %")
 903 | 
 904 |     except Exception as e:
 905 |         print("Error parsing BMS pack capacity data: ", str(e))
 906 |         return False, "Error parsing BMS pack capacity data: " + str(e)
 907 | 
 908 |     return True,True
 909 | 
 910 | def bms_getWarnInfo(bms):
 911 | 
 912 |     byte_index = 2
 913 |     packsW = 1
 914 |     warnings = ""
 915 | 
 916 |     success, inc_data = bms_request(bms,cid2=constants.cid2WarnInfo,info=b'FF')
 917 | 
 918 |     if success == False:
 919 |         return(False,inc_data)
 920 | 
 921 |     #inc_data = b'000210000000000000000000000000000000000600000000000000000000000E0000000000001110000000000000000000000000000000000600000000000000000000000E00000000000000'
 922 | 
 923 |     try:
 924 | 
 925 |         packsW = int(inc_data[byte_index:byte_index+2],16)
 926 |         if print_initial:
 927 |             print("Packs for warnings: " + str(packs))
 928 |         byte_index += 2
 929 | 
 930 |         for p in range(1,packs+1):
 931 | 
 932 |             cellsW = int(inc_data[byte_index:byte_index+2],16)
 933 |             byte_index += 2
 934 | 
 935 |             for c in range(1,cellsW+1):
 936 | 
 937 |                 if inc_data[byte_index:byte_index+2] != b'00':
 938 |                     warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 939 |                     warnings += "cell " + str(c) + " " + warn + ", "
 940 |                 byte_index += 2
 941 | 
 942 |             tempsW = int(inc_data[byte_index:byte_index+2],16)
 943 |             byte_index += 2
 944 |         
 945 |             for t in range(1,tempsW+1):
 946 | 
 947 |                 if inc_data[byte_index:byte_index+2] != b'00':
 948 |                     warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 949 |                     warnings += "temp " + str(t) + " " + warn + ", "
 950 |                 byte_index += 2
 951 | 
 952 |             if inc_data[byte_index:byte_index+2] != b'00':
 953 |                 warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 954 |                 warnings += "charge current " + warn + ", "
 955 |             byte_index += 2
 956 | 
 957 |             if inc_data[byte_index:byte_index+2] != b'00':
 958 |                 warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 959 |                 warnings += "total voltage " + warn + ", "
 960 |             byte_index += 2
 961 | 
 962 |             if inc_data[byte_index:byte_index+2] != b'00':
 963 |                 warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 964 |                 warnings += "discharge current " + warn + ", "
 965 |             byte_index += 2
 966 | 
 967 |             protectState1 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 968 |             if protectState1 > 0:
 969 |                 warnings += "Protection State 1: "
 970 |                 for x in range(0,8):
 971 |                     if (protectState1 & (1<<x)):
 972 |                         warnings += constants.protectState1[x+1] + " | "
 973 |                 warnings = warnings.rstrip("| ")
 974 |                 warnings += ", "
 975 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_short_circuit",str(protectState1>>6 & 1))  
 976 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_discharge_current",str(protectState1>>5 & 1))  
 977 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_charge_current",str(protectState1>>4 & 1))  
 978 |             byte_index += 2
 979 | 
 980 |             protectState2 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 981 |             if protectState2 > 0:
 982 |                 warnings += "Protection State 2: "
 983 |                 for x in range(0,8):
 984 |                     if (protectState2 & (1<<x)):
 985 |                         warnings += constants.protectState2[x+1] + " | "
 986 |                 warnings = warnings.rstrip("| ")
 987 |                 warnings += ", "
 988 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/fully",str(protectState2>>7 & 1))  
 989 |             byte_index += 2
 990 | 
 991 |             # instructionState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 992 |             # if instructionState > 0:
 993 |             #     warnings += "Instruction State: "
 994 |             #     for x in range(0,8):
 995 |             #         if (instructionState & (1<<x)):
 996 |             #              warnings += constants.instructionState[x+1] + " | "
 997 |             #     warnings = warnings.rstrip("| ")
 998 |             #     warnings += ", "  
 999 |             # byte_index += 2
1000 | 
1001 |             instructionState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1002 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/current_limit",str(instructionState>>0 & 1))
1003 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/charge_fet",str(instructionState>>1 & 1))
1004 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/discharge_fet",str(instructionState>>2 & 1))
1005 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/pack_indicate",str(instructionState>>3 & 1))
1006 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/reverse",str(instructionState>>4 & 1))
1007 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/ac_in",str(instructionState>>5 & 1))
1008 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/heart",str(instructionState>>7 & 1))
1009 |             byte_index += 2
1010 | 
1011 |             controlState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1012 |             if controlState > 0:
1013 |                 warnings += "Control State: "
1014 |                 for x in range(0,8):
1015 |                     if (controlState & (1<<x)):
1016 |                         warnings += constants.controlState[x+1] + " | "
1017 |                 warnings = warnings.rstrip("| ")
1018 |                 warnings += ", "  
1019 |             byte_index += 2
1020 | 
1021 |             faultState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1022 |             if faultState > 0:
1023 |                 warnings += "Fault State: "
1024 |                 for x in range(0,8):
1025 |                     if (faultState & (1<<x)):
1026 |                         warnings += constants.faultState[x+1] + " | "
1027 |                 warnings = warnings.rstrip("| ")
1028 |                 warnings += ", "  
1029 |             byte_index += 2
1030 | 
1031 |             balanceState1 = '{0:08b}'.format(int(inc_data[byte_index:byte_index+2],16))
1032 |             byte_index += 2
1033 | 
1034 |             balanceState2 = '{0:08b}'.format(int(inc_data[byte_index:byte_index+2],16))
1035 |             byte_index += 2
1036 | 
1037 |             warnState1 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1038 |             if warnState1 > 0:
1039 |                 warnings += "Warning State 1: "
1040 |                 for x in range(0,8):
1041 |                     if (warnState1 & (1<<x)):
1042 |                         warnings += constants.warnState1[x+1] + " | "
1043 |                 warnings = warnings.rstrip("| ")
1044 |                 warnings += ", "  
1045 |             byte_index += 2
1046 | 
1047 |             warnState2 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1048 |             if warnState2 > 0:
1049 |                 warnings += "Warning State 2: "
1050 |                 for x in range(0,8):
1051 |                     if (warnState2 & (1<<x)):
1052 |                         warnings += constants.warnState2[x+1] + " | "
1053 |                 warnings = warnings.rstrip("| ")
1054 |                 warnings += ", "  
1055 |             byte_index += 2
1056 | 
1057 |             warnings = warnings.rstrip(", ")
1058 | 
1059 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/warnings",warnings)
1060 |             if print_initial:
1061 |                 print("Pack " + str(p) + ", warnings: " + warnings)
1062 | 
1063 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing1",balanceState1)
1064 |             if print_initial:
1065 |                 print("Pack " + str(p) + ", balancing1: " + balanceState1)
1066 | 
1067 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing2",balanceState2)
1068 |             if print_initial:
1069 |                 print("Pack " + str(p) + ", balancing2: " + balanceState2)
1070 | 
1071 |             warnings = ""
1072 | 
1073 |             #Test for non signed value (matching cell count), to skip possible INFOFLAG present in data
1074 |             if (byte_index < len(inc_data)) and (cellsW != int(inc_data[byte_index:byte_index+2],16)):
1075 |                 byte_index += 2
1076 | 
1077 |     except Exception as e:
1078 |         print("Error parsing BMS warning data: ", str(e))
1079 |         return False, "Error parsing BMS warning data: " + str(e)
1080 | 
1081 |     return True,True
1082 | 
1083 | 
1084 | print("Connecting to BMS...")
1085 | bms,bms_connected = bms_connect(config['bms_ip'],config['bms_port'])
1086 | 
1087 | client.publish(config['mqtt_base_topic'] + "/availability","offline")
1088 | print_initial = True
1089 | 
1090 | success, data = bms_getVersion(bms)
1091 | if success != True:
1092 |     print("Error retrieving BMS version number")
1093 | 
1094 | time.sleep(0.1)
1095 | success, bms_sn, pack_sn = bms_getSerial(bms)
1096 | if success != True:
1097 |     print("Error retrieving BMS and pack serial numbers. This is required for HA Discovery. Exiting...")
1098 |     quit()
1099 | 
1100 | 
1101 | # Not used anymore
1102 | # time.sleep(0.1)
1103 | # success, data = bms_getPackNumber(bms)
1104 | # if success == True:
1105 | #     print("Batteries in pack: ", data)
1106 | # else:
1107 | #     print("Error retrieving number of batteries in pack")
1108 | 
1109 | while code_running == True:
1110 | 
1111 |     if bms_connected == True:
1112 |         if mqtt_connected == True:
1113 | 
1114 |             success, data = bms_getAnalogData(bms,batNumber=255)
1115 |             if success != True:
1116 |                 print("Error retrieving BMS analog data: " + data)
1117 |             time.sleep(scan_interval/3)
1118 |             success, data = bms_getPackCapacity(bms)
1119 |             if success != True:
1120 |                 print("Error retrieving BMS pack capacity: " + data)
1121 |             time.sleep(scan_interval/3)
1122 |             success, data = bms_getWarnInfo(bms)
1123 |             if success != True:
1124 |                 print("Error retrieving BMS warning info: " + data)
1125 |             time.sleep(scan_interval/3)
1126 | 
1127 |             if print_initial:
1128 |                 ha_discovery()
1129 |                 
1130 |             client.publish(config['mqtt_base_topic'] + "/availability","online")
1131 | 
1132 |             print_initial = False
1133 |             
1134 | 
1135 |             repub_discovery += 1
1136 |             if repub_discovery*scan_interval > 3600:
1137 |                 repub_discovery = 0
1138 |                 print_initial = True
1139 |         
1140 |         else: #MQTT not connected
1141 |             client.loop_stop()
1142 |             print("MQTT disconnected, trying to reconnect...")
1143 |             client.connect(config['mqtt_host'], config['mqtt_port'], 60)
1144 |             client.loop_start()
1145 |             time.sleep(5)
1146 |             print_initial = True
1147 |     else: #BMS not connected
1148 |         print("BMS disconnected, trying to reconnect...")
1149 |         bms,bms_connected = bms_connect(config['bms_ip'],config['bms_port'])
1150 |         client.publish(config['mqtt_base_topic'] + "/availability","offline")
1151 |         time.sleep(5)
1152 |         print_initial = True
1153 | 
1154 | client.loop_stop()
1155 | 


--------------------------------------------------------------------------------
/config.yaml:
--------------------------------------------------------------------------------
 1 | name: "BMS Pace"
 2 | description: "Pace BMS Interface"
 3 | version: "2.2.0"
 4 | slug: "bms_pace"
 5 | url: "https://github.com/Tertiush/bmspace/pace-bms"
 6 | init: false
 7 | arch:
 8 |   - aarch64
 9 |   - amd64
10 |   - armhf
11 |   - armv7
12 |   - i386
13 | 
14 | uart: true
15 | usb: true
16 | 
17 | options:
18 |   mqtt_host: "10.0.0.132"
19 |   mqtt_port: 1883
20 |   mqtt_user: "mqtt-users"
21 |   mqtt_password: "mqtt-users"
22 |   mqtt_ha_discovery: true
23 |   mqtt_ha_discovery_topic: "homeassistant"
24 |   mqtt_base_topic: "bmspace"
25 |   connection_type: "IP"
26 |   bms_ip: "10.0.0.161"
27 |   bms_port: 5000
28 |   bms_serial: "/dev/ttyUSB0"
29 |   scan_interval: 5
30 |   debug_output: 0
31 | schema:
32 |   mqtt_host: str
33 |   mqtt_port: int
34 |   mqtt_user: str
35 |   mqtt_password: str
36 |   mqtt_ha_discovery: bool
37 |   mqtt_ha_discovery_topic: str
38 |   mqtt_base_topic: str
39 |   connection_type: list(IP|Serial)
40 |   bms_ip: str
41 |   bms_port: int
42 |   bms_serial: str
43 |   scan_interval: int
44 |   debug_output: int
45 | 


--------------------------------------------------------------------------------
/constants.py:
--------------------------------------------------------------------------------
 1 | 
 2 | 
 3 | cid2PackNumber          = b"\x39\x30"       # 0x90
 4 | cid2PackAnalogData      = b"\x34\x32"       # 0x42
 5 | cid2SoftwareVersion     = b"\x43\x31"       # 0xC1
 6 | cid2SerialNumber        = b"\x43\x32"       # 0xC2
 7 | cid2PackCapacity        = b"\x41\x36"       # 0xA6
 8 | cid2WarnInfo            = b"\x34\x34"       # 0x44
 9 | 
10 | 
11 | warningStates = {   b'00': "Normal",
12 |                     b'01': "< low limit",
13 |                     b'02': "> up limit",
14 |                     b'F0': "other fault"} # 80H～EFH：user defined
15 | 
16 | protectState1 = {   1: "Above cell volt protect",
17 |                     2: "Lower cell volt protect",
18 |                     3: "Above total volt protect",
19 |                     4: "Lower total volt protect",
20 |                     5: "Charge current protect",
21 |                     6: "Discharge current protect",
22 |                     7: "Short circuit",
23 |                     8: "undefined"}
24 | 
25 | protectState2 = {   1: "Above charge temp protect",
26 |                     2: "Above discharge temp protect",
27 |                     3: "Lower charge temp protect",
28 |                     4: "Lower discharge temp protect",
29 |                     5: "Above MOS temp protect",
30 |                     6: "Above Env temp protect",
31 |                     7: "Lower Env temp protect",
32 |                     8: "Fully"}
33 | 
34 | instructionState = {1: "Current limit indicate ON",
35 |                     2: "CFET indicate ON",
36 |                     3: "DFET indicate ON",
37 |                     4: "Pack indicate ON",
38 |                     5: "Reverse indicate ON",
39 |                     6: "ACin ON",
40 |                     7: "Undefined",
41 |                     8: "Heart indicate ON"}
42 | 
43 | controlState =     {1: "Buzzer warn function enabled",
44 |                     2: "undefined",
45 |                     3: "undefined",
46 |                     4: "Current limit gear => low gear",
47 |                     5: "Current limit function disabled",
48 |                     6: "LED warn functiuon disabled",
49 |                     7: "Undefined",
50 |                     8: "Undefined"}
51 | 
52 | faultState =       {1: "Charge MOS fault",
53 |                     2: "Discharge MOS fault",
54 |                     3: "NTC fault (NTC)",
55 |                     4: "Undefined",
56 |                     5: "Cell fault",
57 |                     6: "Sample fault",
58 |                     7: "Undefined",
59 |                     8: "Undefined"}
60 | 
61 | warnState1 =       {1: "Above cell volt warn",
62 |                     2: "Lower cell volt warn",
63 |                     3: "Above total volt warn",
64 |                     4: "Lower total volt warn",
65 |                     5: "Charge current warn",
66 |                     6: "Discharge current warn",
67 |                     7: "Undefined",
68 |                     8: "Undefined"}
69 | 
70 | warnState2 =       {1: "Above charge temp warn",
71 |                     2: "Above discharge temp warn",
72 |                     3: "Low charge temp warn",
73 |                     4: "Low discharge temp warn",
74 |                     5: "High env temp warn",
75 |                     6: "Low env temp warn",
76 |                     7: "High MOS temp warn",
77 |                     8: "Low power warn"}


--------------------------------------------------------------------------------
/docker-compose.yaml:
--------------------------------------------------------------------------------
 1 | version: '3'
 2 | services:
 3 |   bmspace:
 4 |     build: 
 5 |       context: .
 6 |     restart: unless-stopped
 7 |     privileged: true
 8 |     volumes:
 9 |       - ./config.yaml:/workdir/config.yaml
10 |       - /dev:/dev
11 | 


--------------------------------------------------------------------------------
/icon.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Tertiush/bmspace/c756863884bad153b35330c97f107deea3b8de18/icon.png


--------------------------------------------------------------------------------
/pace-bms-dev/CHANGELOG.md:
--------------------------------------------------------------------------------
 1 | WARNING: Breaking Changes! As of version 2.0.0 each pack (battery) will be pre-fixed with its pack number. 
 2 | <br>
 3 | Use at own risk!! 
 4 | <br>
 5 | This is to support multiple packs. 
 6 | <br>
 7 | Additional data is now being retrieved, including warning, balancing, status indications, etc. 
 8 | <br>
 9 | This script excludes COMMANDS and should only retrieve data. Nonetheless the author accepts no reponsibility whatsoever of your use, in any way, of this script / addon. Again, USE AT OWN RISK!
10 | <br>
11 | <h1>Changelog</h1>
12 | <h2>Development Version:</h2>
13 | 
14 | 2.3dev - Added optional zero(0) padding for pack and cell values, to help maintain ordering. If used your history will be spread across the old and new names!
15 | 
16 | Added nested exception catches that might help the script not fail if a pack is missing.
17 | 
18 | 
19 | <h1>Known / possible issues</h1>
20 | The overall Pack data collected under the root MQTT topic seems to follow the data of the first battery in the Pack.


--------------------------------------------------------------------------------
/pace-bms-dev/Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM python:3.9-alpine
 2 | 
 3 | ENV WORK_DIR=workdir \
 4 |   HASSIO_DATA_PATH=/data
 5 | 
 6 | RUN mkdir -p ${WORK_DIR}
 7 | WORKDIR /${WORK_DIR}
 8 | COPY requirements.txt .
 9 | 
10 | # install python libraries
11 | RUN pip3 install -r requirements.txt
12 | 
13 | # Copy code
14 | COPY bms.py constants.py run.sh ./
15 | RUN chmod a+x run.sh
16 | 
17 | CMD [ "sh", "./run.sh" ]
18 | 


--------------------------------------------------------------------------------
/pace-bms-dev/config.yaml:
--------------------------------------------------------------------------------
 1 | name: "BMS Pace - Development"
 2 | description: "Pace BMS Interface"
 3 | version: "2.3dev"
 4 | slug: "bms_pace_dev"
 5 | url: "https://github.com/Tertiush/bmspace/pace-bms-dev"
 6 | init: false
 7 | arch:
 8 |   - aarch64
 9 |   - amd64
10 |   - armhf
11 |   - armv7
12 |   - i386
13 | 
14 | uart: true
15 | usb: true
16 | 
17 | options:
18 |   mqtt_host: "10.0.0.132"
19 |   mqtt_port: 1883
20 |   mqtt_user: "mqtt-users"
21 |   mqtt_password: "mqtt-users"
22 |   mqtt_ha_discovery: true
23 |   mqtt_ha_discovery_topic: "homeassistant"
24 |   mqtt_base_topic: "bmspace"
25 |   connection_type: "IP"
26 |   bms_ip: "10.0.0.161"
27 |   bms_port: 5000
28 |   bms_serial: "/dev/ttyUSB0"
29 |   scan_interval: 5
30 |   debug_output: 0
31 |   force_pack_offset: 0
32 |   zero_pad_number_cells: 0
33 |   zero_pad_number_packs: 0
34 | schema:
35 |   mqtt_host: str
36 |   mqtt_port: int
37 |   mqtt_user: str
38 |   mqtt_password: str
39 |   mqtt_ha_discovery: bool
40 |   mqtt_ha_discovery_topic: str
41 |   mqtt_base_topic: str
42 |   connection_type: list(IP|Serial)
43 |   bms_ip: str
44 |   bms_port: int
45 |   bms_serial: str
46 |   scan_interval: int
47 |   debug_output: int
48 |   force_pack_offset: "int?"
49 |   zero_pad_number_cells: "int?"
50 |   zero_pad_number_packs: "int?"


--------------------------------------------------------------------------------
/pace-bms-dev/constants.py:
--------------------------------------------------------------------------------
 1 | 
 2 | 
 3 | cid2PackNumber          = b"\x39\x30"       # 0x90
 4 | cid2PackAnalogData      = b"\x34\x32"       # 0x42
 5 | cid2SoftwareVersion     = b"\x43\x31"       # 0xC1
 6 | cid2SerialNumber        = b"\x43\x32"       # 0xC2
 7 | cid2PackCapacity        = b"\x41\x36"       # 0xA6
 8 | cid2WarnInfo            = b"\x34\x34"       # 0x44
 9 | 
10 | 
11 | warningStates = {   b'00': "Normal",
12 |                     b'01': "< low limit",
13 |                     b'02': "> up limit",
14 |                     b'F0': "other fault"} # 80H～EFH：user defined
15 | 
16 | protectState1 = {   1: "Above cell volt protect",
17 |                     2: "Lower cell volt protect",
18 |                     3: "Above total volt protect",
19 |                     4: "Lower total volt protect",
20 |                     5: "Charge current protect",
21 |                     6: "Discharge current protect",
22 |                     7: "Short circuit",
23 |                     8: "undefined"}
24 | 
25 | protectState2 = {   1: "Above charge temp protect",
26 |                     2: "Above discharge temp protect",
27 |                     3: "Lower charge temp protect",
28 |                     4: "Lower discharge temp protect",
29 |                     5: "Above MOS temp protect",
30 |                     6: "Above Env temp protect",
31 |                     7: "Lower Env temp protect",
32 |                     8: "Fully"}
33 | 
34 | instructionState = {1: "Current limit indicate ON",
35 |                     2: "CFET indicate ON",
36 |                     3: "DFET indicate ON",
37 |                     4: "Pack indicate ON",
38 |                     5: "Reverse indicate ON",
39 |                     6: "ACin ON",
40 |                     7: "Undefined",
41 |                     8: "Heart indicate ON"}
42 | 
43 | controlState =     {1: "Buzzer warn function enabled",
44 |                     2: "undefined",
45 |                     3: "undefined",
46 |                     4: "Current limit gear => low gear",
47 |                     5: "Current limit function disabled",
48 |                     6: "LED warn functiuon disabled",
49 |                     7: "Undefined",
50 |                     8: "Undefined"}
51 | 
52 | faultState =       {1: "Charge MOS fault",
53 |                     2: "Discharge MOS fault",
54 |                     3: "NTC fault (NTC)",
55 |                     4: "Undefined",
56 |                     5: "Cell fault",
57 |                     6: "Sample fault",
58 |                     7: "Undefined",
59 |                     8: "Undefined"}
60 | 
61 | warnState1 =       {1: "Above cell volt warn",
62 |                     2: "Lower cell volt warn",
63 |                     3: "Above total volt warn",
64 |                     4: "Lower total volt warn",
65 |                     5: "Charge current warn",
66 |                     6: "Discharge current warn",
67 |                     7: "Undefined",
68 |                     8: "Undefined"}
69 | 
70 | warnState2 =       {1: "Above charge temp warn",
71 |                     2: "Above discharge temp warn",
72 |                     3: "Low charge temp warn",
73 |                     4: "Low discharge temp warn",
74 |                     5: "High env temp warn",
75 |                     6: "Low env temp warn",
76 |                     7: "High MOS temp warn",
77 |                     8: "Low power warn"}


--------------------------------------------------------------------------------
/pace-bms-dev/docker-compose.yaml:
--------------------------------------------------------------------------------
 1 | version: '3'
 2 | services:
 3 |   bmspace:
 4 |     build: 
 5 |       context: .
 6 |     restart: unless-stopped
 7 |     privileged: true
 8 |     volumes:
 9 |       - ./config.yaml:/workdir/config.yaml
10 |       - /dev:/dev
11 | 


--------------------------------------------------------------------------------
/pace-bms-dev/icon.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Tertiush/bmspace/c756863884bad153b35330c97f107deea3b8de18/pace-bms-dev/icon.png


--------------------------------------------------------------------------------
/pace-bms-dev/requirements.txt:
--------------------------------------------------------------------------------
1 | paho_mqtt==1.6.1
2 | PyYAML==6.0.1
3 | pyserial==3.5
4 | 


--------------------------------------------------------------------------------
/pace-bms-dev/run.sh:
--------------------------------------------------------------------------------
1 | #!/usr/bin/with-contenv bashio
2 | set -e
3 | 
4 | echo "Hello BMS Pace"
5 | 
6 | # cd "${0%/*}"
7 | cd /workdir
8 | python3 -u ./bms.py #"$@"


--------------------------------------------------------------------------------
/pace-bms-ports.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Tertiush/bmspace/c756863884bad153b35330c97f107deea3b8de18/pace-bms-ports.png


--------------------------------------------------------------------------------
/repository.yaml:
--------------------------------------------------------------------------------
1 | 
2 | "name": "BMS Pace addon for Home Assistant"
3 | "url": "https://github.com/Tertiush/bmspace"
4 | "maintainer": "Tertius Hyman"


--------------------------------------------------------------------------------
/requirements.txt:
--------------------------------------------------------------------------------
1 | paho_mqtt==1.6.1
2 | PyYAML==6.0.1
3 | pyserial==3.5
4 | 


--------------------------------------------------------------------------------
/run.sh:
--------------------------------------------------------------------------------
1 | #!/usr/bin/with-contenv bashio
2 | set -e
3 | 
4 | echo "Hello BMS Pace"
5 | 
6 | # cd "${0%/*}"
7 | cd /workdir
8 | python3 -u ./bms.py #"$@"


--------------------------------------------------------------------------------
/volta-sg1-bms-dev/CHANGELOG.md:
--------------------------------------------------------------------------------
 1 | 
 2 | <br>
 3 | Use at own risk!! 
 4 | <br>
 5 | This script excludes COMMANDS and should only retrieve data. Nonetheless the author accepts no reponsibility whatsoever of your use, in any way, of this script / addon. Again, USE AT OWN RISK!
 6 | <br>
 7 | <h1>Changelog</h1>
 8 | <h2>Development Version:</h2>
 9 | For Volta Stage 1 - Adapted from BMS code base, many data disabled as mappings are completely different.
10 | 
11 | 
12 | <h1>Known / possible issues</h1>
13 | The overall Pack data collected under the root MQTT topic seems to follow the data of the first battery in the Pack.


--------------------------------------------------------------------------------
/volta-sg1-bms-dev/Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM python:3.9-alpine
 2 | 
 3 | ENV WORK_DIR=workdir \
 4 |   HASSIO_DATA_PATH=/data
 5 | 
 6 | RUN mkdir -p ${WORK_DIR}
 7 | WORKDIR /${WORK_DIR}
 8 | COPY requirements.txt .
 9 | 
10 | # install python libraries
11 | RUN pip3 install -r requirements.txt
12 | 
13 | # Copy code
14 | COPY bms.py constants.py run.sh ./
15 | RUN chmod a+x run.sh
16 | 
17 | CMD [ "sh", "./run.sh" ]
18 | 


--------------------------------------------------------------------------------
/volta-sg1-bms-dev/bms.py:
--------------------------------------------------------------------------------
   1 | 
   2 | 
   3 | import paho.mqtt.client as mqtt
   4 | import socket
   5 | import time
   6 | import yaml
   7 | import os
   8 | import json
   9 | import serial
  10 | import io
  11 | import json
  12 | import atexit
  13 | import sys
  14 | import constants
  15 | 
  16 | print("Starting up...")
  17 | 
  18 | config = {}
  19 | script_version = ""
  20 | 
  21 | if os.path.exists('/data/options.json'):
  22 |     print("Loading options.json")
  23 |     with open(r'/data/options.json') as file:
  24 |         config = json.load(file)
  25 |         print("Config: " + json.dumps(config))
  26 | 
  27 | elif os.path.exists('volta-sg1-bms-dev\\config.yaml'):
  28 |     print("Loading config.yaml")
  29 |     with open(r'volta-sg1-bms-dev\\config.yaml') as file:
  30 |         config = yaml.load(file, Loader=yaml.FullLoader)['options']
  31 |         
  32 | else:
  33 |     sys.exit("No config file found")  
  34 | 
  35 | 
  36 | scan_interval = config['scan_interval']
  37 | connection_type = config['connection_type']
  38 | bms_serial = config['bms_serial']
  39 | packs_to_read = int(config['packs_to_read'])
  40 | ha_discovery_enabled = config['mqtt_ha_discovery']
  41 | code_running = True
  42 | bms_connected = False
  43 | mqtt_connected = False
  44 | print_initial = True
  45 | debug_output = config['debug_output']
  46 | disc_payload = {}
  47 | repub_discovery = 0
  48 | 
  49 | bms_version = ''
  50 | bms_sn = ''
  51 | pack_sn = ''
  52 | packs = packs_to_read
  53 | cells = 13
  54 | temps = 6
  55 | bat_read = 1
  56 | 
  57 | i_pack = []
  58 | v_pack = []
  59 | i_remain_cap = []
  60 | i_design_cap = []
  61 | cycles = []
  62 | i_full_cap = []
  63 | soc = []
  64 | soh = []
  65 | 
  66 | print("Connection Type: " + connection_type)
  67 | 
  68 | def on_connect(client, userdata, flags, rc):
  69 |     print("MQTT connected with result code "+str(rc))
  70 |     client.will_set(config['mqtt_base_topic'] + "/availability","offline", qos=0, retain=False)
  71 |     global mqtt_connected
  72 |     mqtt_connected = True
  73 | 
  74 | def on_disconnect(client, userdata, rc):
  75 |     print("MQTT disconnected with result code "+str(rc))
  76 |     global mqtt_connected
  77 |     mqtt_connected = False
  78 | 
  79 | 
  80 | client = mqtt.Client("bmspace")
  81 | client.on_connect = on_connect
  82 | client.on_disconnect = on_disconnect
  83 | #client.on_message = on_message
  84 | 
  85 | client.username_pw_set(username=config['mqtt_user'], password=config['mqtt_password'])
  86 | client.connect(config['mqtt_host'], config['mqtt_port'], 60)
  87 | client.loop_start()
  88 | time.sleep(2)
  89 | 
  90 | def exit_handler():
  91 |     print("Script exiting")
  92 |     client.publish(config['mqtt_base_topic'] + "/availability","offline")
  93 |     return
  94 | 
  95 | atexit.register(exit_handler)
  96 | 
  97 | def bms_connect(address, port):
  98 | 
  99 |     if connection_type == "Serial":
 100 | 
 101 |         try:
 102 |             print("trying to connect %s" % bms_serial)
 103 |             s = serial.Serial(bms_serial,timeout = 1)
 104 |             print("BMS serial connected")
 105 |             return s, True
 106 |         except IOError as msg:
 107 |             print("BMS serial error connecting: %s" % msg)
 108 |             return False, False    
 109 | 
 110 |     else:
 111 | 
 112 |         try:
 113 |             print("trying to connect " + address + ":" + str(port))
 114 |             s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 115 |             s.settimeout(2)
 116 |             s.connect((address, port))
 117 |             print("BMS socket connected")
 118 |             return s, True
 119 |         except OSError as msg:
 120 |             print("BMS socket error connecting: %s" % msg)
 121 |             return False, False
 122 | 
 123 | def bms_sendData(comms,request=''):
 124 | 
 125 |     if connection_type == "Serial":
 126 | 
 127 |         try:
 128 |             if len(request) > 0:
 129 |                 comms.write(request)
 130 |                 time.sleep(0.25)
 131 |                 return True
 132 |         except IOError as e:
 133 |             print("BMS serial error: %s" % e)
 134 |             # global bms_connected
 135 |             return False
 136 | 
 137 |     else:
 138 | 
 139 |         try:
 140 |             if len(request) > 0:
 141 |                 comms.send(request)
 142 |                 time.sleep(0.25)
 143 |                 return True
 144 |         except Exception as e:
 145 |             print("BMS socket error: %s" % e)
 146 |             # global bms_connected
 147 |             return False
 148 | 
 149 | def bms_get_data(comms):
 150 |     try:
 151 |         if connection_type == "Serial":
 152 |             inc_data = comms.readline()
 153 |         else:
 154 |             temp = bytes()
 155 |             
 156 |             while len(temp) == 0 or temp[-1] != 13:
 157 |                 temp = temp + comms.recv(4096)
 158 | 
 159 |             temp2 = temp.split(b'\r')
 160 |             # Decide which one to take:
 161 |             for element in range(0,len(temp2)):
 162 |                 SOI = hex(ord(temp2[element][0:1]))
 163 |                 if SOI == '0x7e':
 164 |                     inc_data = temp2[element] + b'\r'
 165 |                     break
 166 | 
 167 |             if (len(temp2) > 2) & (debug_output > 0):
 168 |                 print("Multiple EOIs detected")
 169 |                 print("...for incoming data: " + str(temp) + " |Hex: " + str(temp.hex(' ')))
 170 |                 
 171 |         return inc_data
 172 |     except Exception as e:
 173 |         print("BMS socket receive error: %s" % e)
 174 |         # global bms_connected
 175 |         return False
 176 | 
 177 | def ha_discovery():
 178 | 
 179 |     global ha_discovery_enabled
 180 |     global packs
 181 | 
 182 |     if ha_discovery_enabled:
 183 |         
 184 |         print("Publishing HA Discovery topic...")
 185 | 
 186 |         disc_payload['availability_topic'] = config['mqtt_base_topic'] + "/availability"
 187 | 
 188 |         device = {}
 189 |         device['manufacturer'] = "BMS Pace"
 190 |         device['model'] = "AM-x"
 191 |         device['identifiers'] = "bmspace_" + bms_sn
 192 |         device['name'] = "Generic Lithium"
 193 |         device['sw_version'] = bms_version
 194 |         disc_payload['device'] = device
 195 | 
 196 |         for p in range (1,packs+1):
 197 | 
 198 |             for i in range(0,cells):
 199 |                 disc_payload['name'] = "Pack " + str(p) + " Cell " + str(i+1) + " Voltage"
 200 |                 disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_v_cell_" + str(i+1)
 201 |                 disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_cells/cell_" + str(i+1)
 202 |                 disc_payload['unit_of_measurement'] = "mV"
 203 |                 client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 204 | 
 205 |             for i in range(0,temps):
 206 |                 disc_payload['name'] = "Pack " + str(p) + " Temperature " + str(i+1)
 207 |                 disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_temp_" + str(i+1)
 208 |                 disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/temps/temp_" + str(i+1)
 209 |                 disc_payload['unit_of_measurement'] = "°C"
 210 |                 client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 211 | 
 212 | 
 213 |             disc_payload['name'] = "Pack " + str(p) + " Current"
 214 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_pack"
 215 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_pack"
 216 |             disc_payload['unit_of_measurement'] = "A"
 217 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 218 | 
 219 |             disc_payload['name'] = "Pack " + str(p) + " Voltage"
 220 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_v_pack"
 221 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_pack"
 222 |             disc_payload['unit_of_measurement'] = "V"
 223 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 224 | 
 225 |             disc_payload['name'] = "Pack " + str(p) + " Remaining Capacity"
 226 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_remain_cap"
 227 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_remain_cap"
 228 |             disc_payload['unit_of_measurement'] = "mAh"
 229 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 230 | 
 231 |             disc_payload['name'] = "Pack " + str(p) + " State of Health"
 232 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_soh"
 233 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/soh"
 234 |             disc_payload['unit_of_measurement'] = "%"
 235 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 236 | 
 237 |             disc_payload['name'] = "Pack " + str(p) + " Cycles"
 238 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_cycles"
 239 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/cycles"
 240 |             disc_payload['unit_of_measurement'] = ""
 241 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 242 | 
 243 |             disc_payload['name'] = "Pack " + str(p) + " Full Capacity"
 244 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_full_cap"
 245 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_full_cap"
 246 |             disc_payload['unit_of_measurement'] = "mAh"
 247 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 248 | 
 249 |             # disc_payload['name'] = "Pack " + str(p) + " Design Capacity"
 250 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_i_design_cap"
 251 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_design_cap"
 252 |             # disc_payload['unit_of_measurement'] = "mAh"
 253 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 254 | 
 255 |             disc_payload['name'] = "Pack " + str(p) + " State of Charge"
 256 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_soc"
 257 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/soc"
 258 |             disc_payload['unit_of_measurement'] = "%"
 259 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 260 | 
 261 |             disc_payload['name'] = "Pack " + str(p) + " State of Health"
 262 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_soh"
 263 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/soh"
 264 |             disc_payload['unit_of_measurement'] = "%"
 265 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 266 | 
 267 | 
 268 |             disc_payload.pop('unit_of_measurement')
 269 | 
 270 |             # disc_payload['name'] = "Pack " + str(p) + " Warnings"
 271 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_warnings"
 272 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/warnings"
 273 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 274 | 
 275 |             # disc_payload['name'] = "Pack " + str(p) + " Balancing1"
 276 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_balancing1"
 277 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing1"
 278 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 279 | 
 280 |             # disc_payload['name'] = "Pack " + str(p) + " Balancing2"
 281 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_balancing2"
 282 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing2"
 283 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 284 | 
 285 | 
 286 |             # # Binary Sensors
 287 |             # disc_payload['name'] = "Pack " + str(p) + " Protection Short Circuit"
 288 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_prot_short_circuit"
 289 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_short_circuit"
 290 |             # disc_payload['payload_on'] = "1"
 291 |             # disc_payload['payload_off'] = "0"
 292 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 293 | 
 294 |             # disc_payload['name'] = "Pack " + str(p) + " Protection Discharge Current"
 295 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_prot_discharge_current"
 296 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_discharge_current"
 297 |             # disc_payload['payload_on'] = "1"
 298 |             # disc_payload['payload_off'] = "0"
 299 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 300 | 
 301 |             # disc_payload['name'] = "Pack " + str(p) + " Protection Charge Current"
 302 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_prot_charge_current"
 303 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_charge_current"
 304 |             # disc_payload['payload_on'] = "1"
 305 |             # disc_payload['payload_off'] = "0"
 306 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 307 | 
 308 |             # disc_payload['name'] = "Pack " + str(p) + " Current Limit"
 309 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_current_limit"
 310 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/current_limit"
 311 |             # disc_payload['payload_on'] = "1"
 312 |             # disc_payload['payload_off'] = "0"
 313 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 314 | 
 315 |             # disc_payload['name'] = "Pack " + str(p) + " Charge FET"
 316 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_charge_fet"
 317 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/charge_fet"
 318 |             # disc_payload['payload_on'] = "1"
 319 |             # disc_payload['payload_off'] = "0"
 320 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 321 | 
 322 |             # disc_payload['name'] = "Pack " + str(p) + " Discharge FET"
 323 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_discharge_fet"
 324 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/discharge_fet"
 325 |             # disc_payload['payload_on'] = "1"
 326 |             # disc_payload['payload_off'] = "0"
 327 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 328 | 
 329 |             # disc_payload['name'] = "Pack " + str(p) + " Pack Indicate"
 330 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_pack_indicate"
 331 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/pack_indicate"
 332 |             # disc_payload['payload_on'] = "1"
 333 |             # disc_payload['payload_off'] = "0"
 334 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 335 | 
 336 |             # disc_payload['name'] = "Pack " + str(p) + " Reverse"
 337 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_reverse"
 338 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/reverse"
 339 |             # disc_payload['payload_on'] = "1"
 340 |             # disc_payload['payload_off'] = "0"
 341 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 342 | 
 343 |             # disc_payload['name'] = "Pack " + str(p) + " AC In"
 344 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_ac_in"
 345 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/ac_in"
 346 |             # disc_payload['payload_on'] = "1"
 347 |             # disc_payload['payload_off'] = "0"
 348 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 349 | 
 350 |             # disc_payload['name'] = "Pack " + str(p) + " Heart"
 351 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_heart"
 352 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/heart"
 353 |             # disc_payload['payload_on'] = "1"
 354 |             # disc_payload['payload_off'] = "0"
 355 |             # client.publish(config['mqtt_ha_discovery_topic']+"/binary_sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 356 | 
 357 |             disc_payload['name'] = "Pack " + str(p) + " Cell Max Volt Diff"
 358 |             disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_" + str(p) + "_cells_max_diff_calc"
 359 |             disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_" + str(p) + "/cells_max_diff_calc"
 360 |             disc_payload['unit_of_measurement'] = "mV"
 361 |             client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 362 | 
 363 |             # # Pack data
 364 |             # disc_payload.pop('payload_on')
 365 |             # disc_payload.pop('payload_off')
 366 | 
 367 |             # disc_payload['name'] = "Pack Remaining Capacity"
 368 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_i_remain_cap"
 369 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_remain_cap"
 370 |             # disc_payload['unit_of_measurement'] = "mAh"
 371 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 372 | 
 373 |             # disc_payload['name'] = "Pack Full Capacity"
 374 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_i_full_cap"
 375 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_full_cap"
 376 |             # disc_payload['unit_of_measurement'] = "mAh"
 377 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 378 | 
 379 |             # disc_payload['name'] = "Pack Design Capacity"
 380 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_i_design_cap"
 381 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_design_cap"
 382 |             # disc_payload['unit_of_measurement'] = "mAh"
 383 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 384 | 
 385 |             # disc_payload['name'] = "Pack State of Charge"
 386 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_soc"
 387 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_soc"
 388 |             # disc_payload['unit_of_measurement'] = "%"
 389 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 390 | 
 391 |             # disc_payload['name'] = "Pack State of Health"
 392 |             # disc_payload['unique_id'] = "bmspace_" + bms_sn + "_pack_soh"
 393 |             # disc_payload['state_topic'] = config['mqtt_base_topic'] + "/pack_soh"
 394 |             # disc_payload['unit_of_measurement'] = "%"
 395 |             # client.publish(config['mqtt_ha_discovery_topic']+"/sensor/BMS-" + bms_sn + "/" + disc_payload['name'].replace(' ', '_') + "/config",json.dumps(disc_payload),qos=0, retain=True)
 396 | 
 397 |     else:
 398 |         print("HA Discovery Disabled")
 399 | 
 400 | def chksum_calc(data):
 401 | 
 402 |     global debug_output
 403 |     chksum = 0
 404 | 
 405 |     try:
 406 | 
 407 |         for element in range(1, len(data)): #-5):
 408 |             chksum += (data[element])
 409 |         
 410 |         chksum = chksum % 65536
 411 |         chksum = '{0:016b}'.format(chksum)
 412 |     
 413 |         flip_bits = '' 
 414 |         for i in chksum:
 415 |             if i == '0':
 416 |                 flip_bits += '1'
 417 |             else:
 418 |                 flip_bits += '0'
 419 | 
 420 |         chksum = flip_bits
 421 |         chksum = int(chksum,2)+1
 422 | 
 423 |         chksum = format(chksum, 'X')
 424 | 
 425 |     except Exception as e:
 426 |         if debug_output > 0:
 427 |             print("Error calculating CHKSUM using data: " + data)
 428 |             print("Error details: ", str(e))
 429 |         return(False)
 430 | 
 431 |     return(chksum)
 432 | 
 433 | def cid2_rtn(rtn):
 434 | 
 435 |     # RTN Reponse codes, looking for errors
 436 |     if rtn == b'00':
 437 |         return False, False
 438 |     elif rtn == b'01':
 439 |         return True, "RTN Error 01: Undefined RTN error"
 440 |     elif rtn == b'02':
 441 |         return True, "RTN Error 02: CHKSUM error"
 442 |     elif rtn == b'03':
 443 |         return True, "RTN Error 03: LCHKSUM error"
 444 |     elif rtn == b'04':
 445 |         return True, "RTN Error 04: CID2 undefined"
 446 |     elif rtn == b'05':
 447 |         return True, "RTN Error 05: Undefined error"
 448 |     elif rtn == b'06':
 449 |         return True, "RTN Error 06: Undefined error"
 450 |     elif rtn == b'09':
 451 |         return True, "RTN Error 09: Operation or write error"
 452 |     else:
 453 |         return False, False
 454 | 
 455 | def bms_parse_data(inc_data):
 456 | 
 457 |     global debug_output
 458 | 
 459 |     #inc_data = b'~25014600D0F40002100DD50DBC0DD70DD70DD40DD70DD20DD50DD30DD60DC10DD40DD50DD70DD30DD5060B760B710B700B7A0B7D0B9D0000DD2326A90226AC011126AC64100DD30DBD0DD40DC60DD50DD40DD50DD50DD60DD60DD40DD20DD30\r'
 460 | 
 461 |     try:
 462 |         
 463 |         SOI = hex(ord(inc_data[0:1]))
 464 |         if SOI != '0x7e':
 465 |             return(False,"Incorrect starting byte for incoming data")
 466 | 
 467 |         if debug_output > 1:
 468 |             print("SOI: ", SOI)
 469 |             print("VER: ", inc_data[1:3])
 470 |             print("ADR: ", inc_data[3:5])
 471 |             print("CID1 (Type): ", inc_data[5:7])
 472 | 
 473 |         RTN = inc_data[7:9]
 474 |         error, info = cid2_rtn(RTN)
 475 |         if error:
 476 |             print(error)
 477 |             raise Exception(error)
 478 |         
 479 |         LCHKSUM = inc_data[9]
 480 | 
 481 |         if debug_output > 1:
 482 |             print("RTN: ", RTN)
 483 |             print("LENGTH: ", inc_data[9:13])
 484 |             print(" - LCHKSUM: ", LCHKSUM)
 485 |             print(" - LENID: ", inc_data[10:13])
 486 | 
 487 |         LENID = int(inc_data[10:13],16) #amount of bytes, i.e. 2x hex
 488 | 
 489 |         calc_LCHKSUM = lchksum_calc(inc_data[10:13])
 490 |         if calc_LCHKSUM == False:
 491 |             return(False,"Error calculating LCHKSUM for incoming data")
 492 | 
 493 |         if LCHKSUM != ord(calc_LCHKSUM):
 494 |             if debug_output > 0:
 495 |                 print("LCHKSUM received: " + str(LCHKSUM) + " does not match calculated: " + str(ord(calc_LCHKSUM)))
 496 |             return(False,"LCHKSUM received: " + str(LCHKSUM) + " does not match calculated: " + str(ord(calc_LCHKSUM)))
 497 | 
 498 |         if debug_output > 1:
 499 |             print(" - LENID (int): ", LENID)
 500 | 
 501 |         INFO = inc_data[13:13+LENID]
 502 | 
 503 |         if debug_output > 1:
 504 |             print("INFO: ", INFO)
 505 | 
 506 |         CHKSUM = inc_data[13+LENID:13+LENID+4]
 507 |         
 508 |         if debug_output > 1:
 509 |             print("CHKSUM: ", CHKSUM)
 510 |             #print("EOI: ", hex(inc_data[13+LENID+4]))
 511 | 
 512 |         calc_CHKSUM = chksum_calc(inc_data[:len(inc_data)-5])
 513 | 
 514 | 
 515 |         if debug_output > 1:
 516 |             print("Calc CHKSUM: ", calc_CHKSUM)
 517 |     except Exception as e:
 518 |         if debug_output > 0:
 519 |             print("Error1 calculating CHKSUM using data: ", inc_data)
 520 |         return(False,"Error1 calculating CHKSUM: " + str(e))
 521 | 
 522 |     if calc_CHKSUM == False:
 523 |         if debug_output > 0:
 524 |             print("Error2 calculating CHKSUM using data: ", inc_data)
 525 |         return(False,"Error2 calculating CHKSUM")
 526 | 
 527 |     if CHKSUM.decode("ASCII") == calc_CHKSUM:
 528 |         return(True,INFO)
 529 |     else:
 530 |         if debug_output > 0:
 531 |             print("Received and calculated CHKSUM does not match: Received: " + CHKSUM.decode("ASCII") + ", Calculated: " + calc_CHKSUM)
 532 |             print("...for incoming data: " + str(inc_data) + " |Hex: " + str(inc_data.hex(' ')))
 533 |             print("Length of incoming data as measured: " + str(len(inc_data)))
 534 |             print("SOI: ", SOI)
 535 |             print("VER: ", inc_data[1:3])
 536 |             print("ADR: ", inc_data[3:5])
 537 |             print("CID1 (Type): ", inc_data[5:7])
 538 |             print("RTN (decode!): ", RTN)
 539 |             print("LENGTH: ", inc_data[9:13])
 540 |             print(" - LCHKSUM: ", inc_data[9])
 541 |             print(" - LENID: ", inc_data[10:13])
 542 |             print(" - LENID (int): ", int(inc_data[10:13],16))
 543 |             print("INFO: ", INFO)
 544 |             print("CHKSUM: ", CHKSUM)
 545 |             #print("EOI: ", hex(inc_data[13+LENID+4]))
 546 |         return(False,"Checksum error")
 547 | 
 548 | def lchksum_calc(lenid):
 549 | 
 550 |     chksum = 0
 551 | 
 552 |     try:
 553 | 
 554 |         # for element in range(1, len(lenid)): #-5):
 555 |         #     chksum += (lenid[element])
 556 |         
 557 |         for element in range(0, len(lenid)):
 558 |             chksum += int(chr(lenid[element]),16)
 559 | 
 560 |         chksum = chksum % 16
 561 |         chksum = '{0:04b}'.format(chksum)
 562 | 
 563 |         flip_bits = '' 
 564 |         for i in chksum:
 565 |             if i == '0':
 566 |                 flip_bits += '1'
 567 |             else:
 568 |                 flip_bits += '0'
 569 | 
 570 |         chksum = flip_bits
 571 |         chksum = int(chksum,2)
 572 | 
 573 |         chksum += 1
 574 | 
 575 |         if chksum > 15:
 576 |             chksum = 0
 577 | 
 578 |         chksum = format(chksum, 'X')
 579 | 
 580 |     except:
 581 | 
 582 |         print("Error calculating LCHKSUM using LENID: ", lenid)
 583 |         return(False)
 584 | 
 585 |     return(chksum)
 586 | 
 587 | def bms_request(bms, adr,cid1=b"\x34\x36",cid2=b"\x43\x31",info=b"",LENID=False):
 588 |     # adr=b"\x30\x31"
 589 | 
 590 |     global bms_connected
 591 |     global debug_output
 592 |     
 593 |     request = b'\x7e'
 594 |     request += b"\x32\x31" #ver
 595 |     request += adr
 596 |     request += cid1
 597 |     request += cid2
 598 | 
 599 |     if not(LENID):
 600 |         LENID = len(info)
 601 |         #print("Length: ", LENID)
 602 |         LENID = bytes(format(LENID, '03X'), "ASCII")
 603 | 
 604 |     #print("LENID: ", LENID)
 605 | 
 606 |     if LENID == b'000':
 607 |         LCHKSUM = '0'
 608 |     else:
 609 |         LCHKSUM = lchksum_calc(LENID)
 610 |         if LCHKSUM == False:
 611 |             return(False,"Error calculating LCHKSUM)")
 612 |     #print("LCHKSUM: ", LCHKSUM)
 613 |     request += bytes(LCHKSUM, "ASCII")
 614 |     request += LENID
 615 |     request += info
 616 |     CHKSUM = bytes(chksum_calc(request), "ASCII")
 617 |     if CHKSUM == False:
 618 |         return(False,"Error calculating CHKSUM)")
 619 |     request += CHKSUM
 620 |     request += b'\x0d'
 621 | 
 622 |     if debug_output > 2:
 623 |         print("-> Outgoing Data: ", request)
 624 | 
 625 |     if not bms_sendData(bms,request):
 626 |         bms_connected = False
 627 |         print("Error, connection to BMS lost")
 628 |         return(False,"Error, connection to BMS lost")
 629 | 
 630 |     inc_data = bms_get_data(bms)
 631 | 
 632 |     if inc_data == False:
 633 |         print("Error retrieving data from BMS")
 634 |         return(False,"Error retrieving data from BMS")
 635 | 
 636 |     if debug_output > 2:
 637 |         print("<- Incoming data: ", inc_data)
 638 | 
 639 |     success, INFO = bms_parse_data(inc_data)
 640 | 
 641 |     return(success, INFO)
 642 | 
 643 | def bms_getPackNumber(bms):
 644 | 
 645 |     success, INFO = bms_request(bms,cid2=constants.cid2PackNumber)
 646 | 
 647 |     if success == False:
 648 |         return(False,INFO)    
 649 | 
 650 |     try:
 651 |         packNumber = int(INFO,16)
 652 |     except:
 653 |         print("Error extracting total battery count in pack")
 654 |         return(False,"Error extracting total battery count in pack")
 655 | 
 656 |     return(success,packNumber)
 657 | 
 658 | def bms_getVersion(comms):
 659 | 
 660 |     global bms_version
 661 | 
 662 |     success, INFO = bms_request(bms,cid2=constants.cid2SoftwareVersion)
 663 | 
 664 |     if success == False:
 665 |         return(False,INFO)
 666 | 
 667 |     try:
 668 | 
 669 |         bms_version = bytes.fromhex(INFO.decode("ascii")).decode("ASCII")
 670 |         client.publish(config['mqtt_base_topic'] + "/bms_version",bms_version)
 671 |         print("BMS Version: " + bms_version)
 672 |     except:
 673 |         return(False,"Error extracting BMS version")
 674 | 
 675 |     return(success,bms_version)
 676 | 
 677 | def bms_getSerial(comms):
 678 | 
 679 |     global bms_sn
 680 |     global pack_sn
 681 | 
 682 |     success, INFO = bms_request(bms,cid2=constants.cid2SerialNumber)
 683 | 
 684 |     if success == False:
 685 |         print("Error: " + INFO)
 686 |         return(False,INFO, False)
 687 | 
 688 |     try:
 689 | 
 690 |         bms_sn = bytes.fromhex(INFO[0:30].decode("ascii")).decode("ASCII").replace(" ", "") #Remove spaces to prevent the unique ID having spaces
 691 |         pack_sn = bytes.fromhex(INFO[40:68].decode("ascii")).decode("ASCII").replace(" ", "")
 692 |         client.publish(config['mqtt_base_topic'] + "/bms_sn",bms_sn)
 693 |         client.publish(config['mqtt_base_topic'] + "/pack_sn",pack_sn)
 694 |         print("BMS Serial Number: " + bms_sn)
 695 |         print("Pack Serial Number: " + pack_sn)
 696 | 
 697 |     except:
 698 |         return(False,"Error extracting BMS version", False)
 699 | 
 700 |     return(success,bms_sn,pack_sn)
 701 | 
 702 | def bms_getAnalogData(bms,adr,batNumber):
 703 | 
 704 |     global print_initial
 705 |     global cells
 706 |     global temps
 707 |     global packs
 708 |     byte_index = 0
 709 | 
 710 | 
 711 |     p = adr
 712 |     battery = bytes(format(batNumber, '02X'), 'ASCII')
 713 |     adr = bytes(format(adr, '02X'), 'ASCII')
 714 | 
 715 |     if debug_output > 1:
 716 |         print("Reading Pack: ", p)
 717 | 
 718 | 
 719 |     success, inc_data = bms_request(bms,adr,cid2=constants.cid2PackAnalogData,info=battery)
 720 | 
 721 |     #bms_request -> bms_get_data(inc_data/INFO = bms_parse_data)
 722 |     
 723 |     if success == False:
 724 |         return(False,inc_data)
 725 | 
 726 |     try:
 727 | 
 728 |         byte_index = 2
 729 | 
 730 |         v_cell = {}
 731 |         t_cell = {}
 732 | 
 733 |         if p > 1:
 734 |             cells_prev = cells
 735 | 
 736 |         cells = int(inc_data[byte_index:byte_index+2],16)
 737 | 
 738 |         if print_initial:
 739 |             print("Pack " + str(p) + ", Total cells: " + str(cells))
 740 |         byte_index += 2
 741 |         
 742 |         cell_min_volt = 0
 743 |         cell_max_volt = 0
 744 | 
 745 |         for i in range(0,cells):
 746 |             v_cell[(p-1,i)] = int(inc_data[byte_index:byte_index+4],16)
 747 |             byte_index += 4
 748 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_cells/cell_" + str(i+1) ,str(v_cell[(p-1,i)]))
 749 |             if print_initial:
 750 |                 print("Pack " + str(p) +", V Cell" + str(i+1) + ": " + str(v_cell[(p-1,i)]) + " mV")
 751 | 
 752 |             #Calculate cell max and min volt
 753 |             if i == 0:
 754 |                 cell_min_volt = v_cell[(p-1,i)]
 755 |                 cell_max_volt = v_cell[(p-1,i)]
 756 |             else:
 757 |                 if v_cell[(p-1,i)] < cell_min_volt:
 758 |                     cell_min_volt = v_cell[(p-1,i)]
 759 |                 if v_cell[(p-1,i)] > cell_max_volt:
 760 |                     cell_max_volt = v_cell[(p-1,i)]
 761 |         
 762 |         #Calculate cells max diff volt
 763 |         cell_max_diff_volt = cell_max_volt - cell_min_volt
 764 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/cells_max_diff_calc" ,str(cell_max_diff_volt))
 765 |         if print_initial:
 766 |             print("Pack " + str(p) +", Cell Max Diff Volt Calc: " + str(cell_max_diff_volt) + " mV")
 767 | 
 768 |         temps = int(inc_data[byte_index:byte_index + 2],16)
 769 |         if print_initial:
 770 |             print("Pack " + str(p) + ", Total temperature sensors: " + str(temps))
 771 |         byte_index += 2
 772 | 
 773 |         for i in range(0,temps): #temps-2
 774 |             t_cell[(p-1,i)] = int(inc_data[byte_index:byte_index + 4],16) -40
 775 |             byte_index += 4
 776 |             client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/temps/temp_" + str(i+1) ,str(round(t_cell[(p-1,i)],1)))
 777 |             if print_initial:
 778 |                 print("Pack " + str(p) + ", Temp" + str(i+1) + ": " + str(round(t_cell[(p-1,i)],1)) + " ℃")
 779 | 
 780 |         # t_mos= (int(inc_data[byte_index:byte_index+4],16))/160-273
 781 |         # client.publish(config['mqtt_base_topic'] + "/t_mos",str(round(t_mos,1)))
 782 |         # if print_initial:
 783 |         #     print("T Mos: " + str(t_mos) + " Deg")
 784 | 
 785 |         # t_env= (int(inc_data[byte_index:byte_index+4],16))/160-273
 786 |         # client.publish(config['mqtt_base_topic'] + "/t_env",str(round(t_env,1)))
 787 |         # offset += 7
 788 |         # if print_initial:
 789 |         #     print("T Env: " + str(t_env) + " Deg")
 790 | 
 791 |         i_pack.append(int(inc_data[byte_index:byte_index+4],16))
 792 |         byte_index += 4
 793 |         if i_pack[p-1] >= 32768:
 794 |             i_pack[p-1] = -1*(65535 - i_pack[p-1])
 795 |         i_pack[p-1] = i_pack[p-1]/100
 796 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_pack",str(i_pack[p-1]))
 797 |         if print_initial:
 798 |             print("Pack " + str(p) + ", I Pack: " + str(i_pack[p-1]) + " A")
 799 | 
 800 |         v_pack.append(int(inc_data[byte_index:byte_index+4],16)/100)
 801 |         byte_index += 4
 802 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/v_pack",str(v_pack[p-1]))
 803 |         if print_initial:
 804 |             print("Pack " + str(p) + ", V Pack: " + str(v_pack[p-1]) + " V")
 805 | 
 806 |         i_remain_cap.append(int(inc_data[byte_index:byte_index+4],16)*10)
 807 |         byte_index += 4
 808 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_remain_cap",str(i_remain_cap[p-1]))
 809 |         if print_initial:
 810 |             print("Pack " + str(p) + ", I Remaining Capacity: " + str(i_remain_cap[p-1]) + " mAh")
 811 | 
 812 |         byte_index += 2 # Manual: Define number P = 3
 813 | 
 814 |         i_full_cap.append(int(inc_data[byte_index:byte_index+4],16)*10)
 815 |         byte_index += 4
 816 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_full_cap",str(i_full_cap[p-1]))
 817 |         if print_initial:
 818 |             print("Pack " + str(p) + ", I Full Capacity: " + str(i_full_cap[p-1]) + " mAh")
 819 | 
 820 |         cycles.append(int(inc_data[byte_index:byte_index+4],16))
 821 |         byte_index += 4
 822 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/cycles",str(cycles[p-1]))
 823 |         if print_initial:
 824 |             print("Pack " + str(p) + ", Cycles: " + str(cycles[p-1]))
 825 | 
 826 |         soc.append(int(inc_data[byte_index:byte_index+2],16))
 827 |         byte_index += 2
 828 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/soc",str(soc[p-1]))
 829 |         if print_initial:
 830 |             print("Pack " + str(p) + ", SOC: " + str(soc[p-1]) + " %")
 831 | 
 832 |         # i_design_cap.append(int(inc_data[byte_index:byte_index+4],16)*10)
 833 |         # byte_index += 4
 834 |         # client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/i_design_cap",str(i_design_cap[p-1]))
 835 |         # if print_initial:
 836 |         #     print("Pack " + str(p) + ", Design Capacity: " + str(i_design_cap[p-1]) + " mAh")
 837 | 
 838 |         soh.append(int(inc_data[byte_index:byte_index+2],16))
 839 |         byte_index += 2
 840 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/soh",str(soh[p-1]))
 841 |         if print_initial:
 842 |             print("Pack " + str(p) + ", SOH: " + str(soh[p-1]) + " %")
 843 | 
 844 | 
 845 |     except Exception as e:
 846 |         print("Error parsing BMS analog data: ", str(e))
 847 |         return(False,"Error parsing BMS analog data: " + str(e))
 848 | 
 849 |     if print_initial:
 850 |         print("Script running....")
 851 | 
 852 |     return True,True
 853 | 
 854 | def bms_getPackCapacity(bms):
 855 | 
 856 |     byte_index = 0
 857 | 
 858 |     success, inc_data = bms_request(bms,cid2=constants.cid2PackCapacity) # Seem to always reply with pack 1 data, even with ADR= 0 or FF and INFO= '' or FF
 859 | 
 860 |     if success == False:
 861 |         return(False,inc_data)
 862 | 
 863 |     try:
 864 | 
 865 |         pack_remain_cap = int(inc_data[byte_index:byte_index+4],16)*10
 866 |         byte_index += 4
 867 |         client.publish(config['mqtt_base_topic'] + "/pack_remain_cap",str(pack_remain_cap))
 868 |         if print_initial:
 869 |             print("Pack Remaining Capacity: " + str(pack_remain_cap) + " mAh")
 870 | 
 871 |         pack_full_cap = int(inc_data[byte_index:byte_index+4],16)*10
 872 |         byte_index += 4
 873 |         client.publish(config['mqtt_base_topic'] + "/pack_full_cap",str(pack_full_cap))
 874 |         if print_initial:
 875 |             print("Pack Full Capacity: " + str(pack_full_cap) + " mAh")
 876 | 
 877 |         pack_design_cap = int(inc_data[byte_index:byte_index+4],16)*10
 878 |         byte_index += 4
 879 |         client.publish(config['mqtt_base_topic'] + "/pack_design_cap",str(pack_design_cap))
 880 |         if print_initial:
 881 |             print("Pack Design Capacity: " + str(pack_design_cap) + " mAh")
 882 | 
 883 |         pack_soc = round(pack_remain_cap/pack_full_cap*100,2)
 884 |         client.publish(config['mqtt_base_topic'] + "/pack_soc",str(pack_soc))
 885 |         if print_initial:
 886 |             print("Pack SOC: " + str(pack_soc) + " %")
 887 | 
 888 |         pack_soh = round(pack_full_cap/pack_design_cap*100,2)
 889 |         client.publish(config['mqtt_base_topic'] + "/pack_soh",str(pack_soh))
 890 |         if print_initial:
 891 |             print("Pack SOH: " + str(pack_soh) + " %")
 892 | 
 893 |     except Exception as e:
 894 |         print("Error parsing BMS pack capacity data: ", str(e))
 895 |         return False, "Error parsing BMS pack capacity data: " + str(e)
 896 | 
 897 |     return True,True
 898 | 
 899 | def bms_getWarnInfo(bms,adr,batNumber):
 900 | 
 901 |     byte_index = 2
 902 |     packsW = 1
 903 |     warnings = ""
 904 | 
 905 |     p = adr
 906 |     adr = bytes(format(adr, '02X'), 'ASCII')
 907 |     battery = bytes(format(batNumber, '02X'), 'ASCII')
 908 | 
 909 |     success, inc_data = bms_request(bms,adr,cid2=constants.cid2WarnInfo,info=battery)
 910 | 
 911 |     if success == False:
 912 |         return(False,inc_data)
 913 | 
 914 |     #inc_data = b'000210000000000000000000000000000000000600000000000000000000000E0000000000001110000000000000000000000000000000000600000000000000000000000E00000000000000'
 915 |     
 916 | 
 917 |     try:
 918 | 
 919 |         packsW = int(inc_data[byte_index:byte_index+2],16)
 920 |         if print_initial:
 921 |             print("Packs for warnings: " + str(packs))
 922 |         byte_index += 2
 923 | 
 924 |         cellsW = int(inc_data[byte_index:byte_index+2],16)
 925 |         byte_index += 2
 926 | 
 927 |         for c in range(1,cellsW+1):
 928 | 
 929 |             if inc_data[byte_index:byte_index+2] != b'00':
 930 |                 warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 931 |                 warnings += "cell " + str(c) + " " + warn + ", "
 932 |             byte_index += 2
 933 | 
 934 |         tempsW = int(inc_data[byte_index:byte_index+2],16)
 935 |         byte_index += 2
 936 |     
 937 |         for t in range(1,tempsW+1):
 938 | 
 939 |             if inc_data[byte_index:byte_index+2] != b'00':
 940 |                 warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 941 |                 warnings += "temp " + str(t) + " " + warn + ", "
 942 |             byte_index += 2
 943 | 
 944 |         if inc_data[byte_index:byte_index+2] != b'00':
 945 |             warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 946 |             warnings += "charge current " + warn + ", "
 947 |         byte_index += 2
 948 | 
 949 |         if inc_data[byte_index:byte_index+2] != b'00':
 950 |             warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 951 |             warnings += "total voltage " + warn + ", "
 952 |         byte_index += 2
 953 | 
 954 |         if inc_data[byte_index:byte_index+2] != b'00':
 955 |             warn = constants.warningStates[inc_data[byte_index:byte_index+2]]
 956 |             warnings += "discharge current " + warn + ", "
 957 |         byte_index += 2
 958 | 
 959 |         protectState1 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 960 |         if protectState1 > 0:
 961 |             warnings += "Protection State 1: "
 962 |             for x in range(0,8):
 963 |                 if (protectState1 & (1<<x)):
 964 |                     warnings += constants.protectState1[x+1] + " | "
 965 |             warnings = warnings.rstrip("| ")
 966 |             warnings += ", "
 967 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_short_circuit",str(protectState1>>6 & 1))  
 968 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_discharge_current",str(protectState1>>5 & 1))  
 969 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/prot_charge_current",str(protectState1>>4 & 1))  
 970 |         byte_index += 2
 971 | 
 972 |         protectState2 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 973 |         if protectState2 > 0:
 974 |             warnings += "Protection State 2: "
 975 |             for x in range(0,8):
 976 |                 if (protectState2 & (1<<x)):
 977 |                     warnings += constants.protectState2[x+1] + " | "
 978 |             warnings = warnings.rstrip("| ")
 979 |             warnings += ", "
 980 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/fully",str(protectState2>>7 & 1))  
 981 |         byte_index += 2
 982 | 
 983 |         # instructionState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 984 |         # if instructionState > 0:
 985 |         #     warnings += "Instruction State: "
 986 |         #     for x in range(0,8):
 987 |         #         if (instructionState & (1<<x)):
 988 |         #              warnings += constants.instructionState[x+1] + " | "
 989 |         #     warnings = warnings.rstrip("| ")
 990 |         #     warnings += ", "  
 991 |         # byte_index += 2
 992 | 
 993 |         instructionState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
 994 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/current_limit",str(instructionState>>0 & 1))
 995 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/charge_fet",str(instructionState>>1 & 1))
 996 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/discharge_fet",str(instructionState>>2 & 1))
 997 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/pack_indicate",str(instructionState>>3 & 1))
 998 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/reverse",str(instructionState>>4 & 1))
 999 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/ac_in",str(instructionState>>5 & 1))
1000 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/heart",str(instructionState>>7 & 1))
1001 |         byte_index += 2
1002 | 
1003 |         controlState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1004 |         if controlState > 0:
1005 |             warnings += "Control State: "
1006 |             for x in range(0,8):
1007 |                 if (controlState & (1<<x)):
1008 |                     warnings += constants.controlState[x+1] + " | "
1009 |             warnings = warnings.rstrip("| ")
1010 |             warnings += ", "  
1011 |         byte_index += 2
1012 | 
1013 |         faultState = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1014 |         if faultState > 0:
1015 |             warnings += "Fault State: "
1016 |             for x in range(0,8):
1017 |                 if (faultState & (1<<x)):
1018 |                     warnings += constants.faultState[x+1] + " | "
1019 |             warnings = warnings.rstrip("| ")
1020 |             warnings += ", "  
1021 |         byte_index += 2
1022 | 
1023 |         balanceState1 = '{0:08b}'.format(int(inc_data[byte_index:byte_index+2],16))
1024 |         byte_index += 2
1025 | 
1026 |         balanceState2 = '{0:08b}'.format(int(inc_data[byte_index:byte_index+2],16))
1027 |         byte_index += 2
1028 | 
1029 |         warnState1 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1030 |         if warnState1 > 0:
1031 |             warnings += "Warning State 1: "
1032 |             for x in range(0,8):
1033 |                 if (warnState1 & (1<<x)):
1034 |                     warnings += constants.warnState1[x+1] + " | "
1035 |             warnings = warnings.rstrip("| ")
1036 |             warnings += ", "  
1037 |         byte_index += 2
1038 | 
1039 |         warnState2 = ord(bytes.fromhex(inc_data[byte_index:byte_index+2].decode('ascii')))
1040 |         if warnState2 > 0:
1041 |             warnings += "Warning State 2: "
1042 |             for x in range(0,8):
1043 |                 if (warnState2 & (1<<x)):
1044 |                     warnings += constants.warnState2[x+1] + " | "
1045 |             warnings = warnings.rstrip("| ")
1046 |             warnings += ", "  
1047 |         byte_index += 2
1048 | 
1049 |         warnings = warnings.rstrip(", ")
1050 | 
1051 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/warnings",warnings)
1052 |         if print_initial:
1053 |             print("Pack " + str(p) + ", warnings: " + warnings)
1054 | 
1055 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing1",balanceState1)
1056 |         if print_initial:
1057 |             print("Pack " + str(p) + ", balancing1: " + balanceState1)
1058 | 
1059 |         client.publish(config['mqtt_base_topic'] + "/pack_" + str(p) + "/balancing2",balanceState2)
1060 |         if print_initial:
1061 |             print("Pack " + str(p) + ", balancing2: " + balanceState2)
1062 | 
1063 |         warnings = ""
1064 | 
1065 |         #Test for non signed value (matching cell count), to skip possible INFOFLAG present in data
1066 |         if (byte_index < len(inc_data)) and (cellsW != int(inc_data[byte_index:byte_index+2],16)):
1067 |             byte_index += 2
1068 | 
1069 |     except Exception as e:
1070 |         print("Error parsing BMS warning data: ", str(e))
1071 |         return False, "Error parsing BMS warning data: " + str(e)
1072 | 
1073 |     return True,True
1074 | 
1075 | 
1076 | print("Connecting to BMS...")
1077 | bms,bms_connected = bms_connect(config['bms_ip'],config['bms_port'])
1078 | 
1079 | client.publish(config['mqtt_base_topic'] + "/availability","offline")
1080 | print_initial = True
1081 | 
1082 | # success, data = bms_getVersion(bms)
1083 | # if success != True:
1084 | #     print("Error retrieving BMS version number")
1085 | 
1086 | # time.sleep(0.1)
1087 | # success, bms_sn,pack_sn = bms_getSerial(bms)
1088 | 
1089 | bms_sn = "version_21"
1090 | pack_sn = "pack_sn_volta_sg1"
1091 | 
1092 | # if success != True:
1093 | #     print("Error retrieving BMS and pack serial numbers. This is required for HA Discovery. Exiting...")
1094 | #     quit()
1095 | 
1096 | 
1097 | while code_running == True:
1098 | 
1099 |     if bms_connected == True:
1100 |         if mqtt_connected == True:
1101 | 
1102 |             if bat_read > packs_to_read:
1103 |                 bat_read = 1
1104 |                 i_pack = []
1105 |                 v_pack = []
1106 |                 i_remain_cap = []
1107 |                 i_design_cap = []
1108 |                 cycles = []
1109 |                 i_full_cap = []
1110 |                 soc = []
1111 |                 soh = []
1112 | 
1113 |             success, data = bms_getAnalogData(bms,bat_read,batNumber=255)
1114 |             if success != True:
1115 |                 print("Error retrieving BMS analog data: " + data)
1116 |             time.sleep(scan_interval/2)
1117 | 
1118 |             # success, data = bms_getPackCapacity(bms)
1119 |             # if success != True:
1120 |             #     print("Error retrieving BMS pack capacity: " + data)
1121 |             # time.sleep(scan_interval/3)
1122 |             # success, data = bms_getWarnInfo(bms,bat_read,batNumber=255)
1123 |             # if success != True:
1124 |             #     print("Error retrieving BMS warning info: " + data)
1125 |             # time.sleep(scan_interval/3)
1126 | 
1127 |             bat_read = bat_read + 1
1128 | 
1129 |             if print_initial:
1130 |                 ha_discovery()
1131 |                 
1132 |             client.publish(config['mqtt_base_topic'] + "/availability","online")
1133 | 
1134 |             print_initial = False
1135 |             
1136 | 
1137 |             repub_discovery += 1
1138 |             if repub_discovery*scan_interval > 3600:
1139 |                 repub_discovery = 0
1140 |                 print_initial = True
1141 |         
1142 |         else: #MQTT not connected
1143 |             client.loop_stop()
1144 |             print("MQTT disconnected, trying to reconnect...")
1145 |             client.connect(config['mqtt_host'], config['mqtt_port'], 60)
1146 |             client.loop_start()
1147 |             time.sleep(5)
1148 |             print_initial = True
1149 |     else: #BMS not connected
1150 |         print("BMS disconnected, trying to reconnect...")
1151 |         bms,bms_connected = bms_connect(config['bms_ip'],config['bms_port'])
1152 |         client.publish(config['mqtt_base_topic'] + "/availability","offline")
1153 |         time.sleep(5)
1154 |         print_initial = True
1155 | 
1156 | client.loop_stop()
1157 | 


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/volta-sg1-bms-dev/config.yaml:
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 1 | name: "BMS Volta V2.1 - Development"
 2 | description: "Volta V2.1 BMS Interface"
 3 | version: "2.2.5dev"
 4 | slug: "bms_volta_dev"
 5 | url: "https://github.com/Tertiush/bmspace/volta-sg1-bms-dev"
 6 | init: false
 7 | arch:
 8 |   - aarch64
 9 |   - amd64
10 |   - armhf
11 |   - armv7
12 |   - i386
13 | 
14 | uart: true
15 | usb: true
16 | 
17 | options:
18 |   mqtt_host: "192.168.0.15"
19 |   mqtt_port: 1883
20 |   mqtt_user: "mqtt-users"
21 |   mqtt_password: "mqtt-users"
22 |   mqtt_ha_discovery: true
23 |   mqtt_ha_discovery_topic: "homeassistant"
24 |   mqtt_base_topic: "bmspace"
25 |   connection_type: "IP"
26 |   bms_ip: "192.168.0.22"
27 |   bms_port: 5000
28 |   bms_serial: "/dev/ttyUSB0"
29 |   scan_interval: 5
30 |   debug_output: 0
31 |   packs_to_read: 1
32 |   force_pack_offset: 0
33 | schema:
34 |   mqtt_host: str
35 |   mqtt_port: int
36 |   mqtt_user: str
37 |   mqtt_password: str
38 |   mqtt_ha_discovery: bool
39 |   mqtt_ha_discovery_topic: str
40 |   mqtt_base_topic: str
41 |   connection_type: list(IP|Serial)
42 |   bms_ip: str
43 |   bms_port: int
44 |   bms_serial: str
45 |   scan_interval: int
46 |   debug_output: int
47 |   packs_to_read: int
48 |   force_pack_offset: "int?"
49 | 


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/volta-sg1-bms-dev/constants.py:
--------------------------------------------------------------------------------
 1 | 
 2 | 
 3 | cid2PackNumber          = b"\x39\x30"       # 0x90
 4 | cid2PackAnalogData      = b"\x34\x32"       # 0x42
 5 | cid2SoftwareVersion     = b"\x43\x31"       # 0xC1
 6 | cid2SerialNumber        = b"\x43\x32"       # 0xC2
 7 | cid2PackCapacity        = b"\x41\x36"       # 0xA6
 8 | cid2WarnInfo            = b"\x34\x34"       # 0x44
 9 | 
10 | 
11 | warningStates = {   b'00': "Normal",
12 |                     b'01': "< low limit",
13 |                     b'02': "> up limit",
14 |                     b'F0': "other fault"} # 80H～EFH：user defined
15 | 
16 | protectState1 = {   1: "Above cell volt protect",
17 |                     2: "Lower cell volt protect",
18 |                     3: "Above total volt protect",
19 |                     4: "Lower total volt protect",
20 |                     5: "Charge current protect",
21 |                     6: "Discharge current protect",
22 |                     7: "Short circuit",
23 |                     8: "undefined"}
24 | 
25 | protectState2 = {   1: "Above charge temp protect",
26 |                     2: "Above discharge temp protect",
27 |                     3: "Lower charge temp protect",
28 |                     4: "Lower discharge temp protect",
29 |                     5: "Above MOS temp protect",
30 |                     6: "Above Env temp protect",
31 |                     7: "Lower Env temp protect",
32 |                     8: "Fully"}
33 | 
34 | instructionState = {1: "Current limit indicate ON",
35 |                     2: "CFET indicate ON",
36 |                     3: "DFET indicate ON",
37 |                     4: "Pack indicate ON",
38 |                     5: "Reverse indicate ON",
39 |                     6: "ACin ON",
40 |                     7: "Undefined",
41 |                     8: "Heart indicate ON"}
42 | 
43 | controlState =     {1: "Buzzer warn function enabled",
44 |                     2: "undefined",
45 |                     3: "undefined",
46 |                     4: "Current limit gear => low gear",
47 |                     5: "Current limit function disabled",
48 |                     6: "LED warn functiuon disabled",
49 |                     7: "Undefined",
50 |                     8: "Undefined"}
51 | 
52 | faultState =       {1: "Charge MOS fault",
53 |                     2: "Discharge MOS fault",
54 |                     3: "NTC fault (NTC)",
55 |                     4: "Undefined",
56 |                     5: "Cell fault",
57 |                     6: "Sample fault",
58 |                     7: "Undefined",
59 |                     8: "Undefined"}
60 | 
61 | warnState1 =       {1: "Above cell volt warn",
62 |                     2: "Lower cell volt warn",
63 |                     3: "Above total volt warn",
64 |                     4: "Lower total volt warn",
65 |                     5: "Charge current warn",
66 |                     6: "Discharge current warn",
67 |                     7: "Undefined",
68 |                     8: "Undefined"}
69 | 
70 | warnState2 =       {1: "Above charge temp warn",
71 |                     2: "Above discharge temp warn",
72 |                     3: "Low charge temp warn",
73 |                     4: "Low discharge temp warn",
74 |                     5: "High env temp warn",
75 |                     6: "Low env temp warn",
76 |                     7: "High MOS temp warn",
77 |                     8: "Low power warn"}


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/volta-sg1-bms-dev/docker-compose.yaml:
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 1 | version: '3'
 2 | services:
 3 |   bmspace:
 4 |     build: 
 5 |       context: .
 6 |     restart: unless-stopped
 7 |     privileged: true
 8 |     volumes:
 9 |       - ./config.yaml:/workdir/config.yaml
10 |       - /dev:/dev
11 | 


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/volta-sg1-bms-dev/icon.png:
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https://raw.githubusercontent.com/Tertiush/bmspace/c756863884bad153b35330c97f107deea3b8de18/volta-sg1-bms-dev/icon.png


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/volta-sg1-bms-dev/requirements.txt:
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1 | paho_mqtt==1.6.1
2 | PyYAML==6.0.1
3 | pyserial==3.5
4 | 


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/volta-sg1-bms-dev/run.sh:
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1 | #!/usr/bin/with-contenv bashio
2 | set -e
3 | 
4 | echo "Hello BMS Pace"
5 | 
6 | # cd "${0%/*}"
7 | cd /workdir
8 | python3 -u ./bms.py #"$@"


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