├── .gitignore ├── 01_MicroPython-ESP32固件烧录 ├── MicroPython-ESP32固件烧录.md ├── image │ └── ad.png └── 固件 │ ├── esp32spiram-20180919-v1.9.4-543-gdc77fdb7d.bin │ └── flash.sh ├── 02_ESP32的REPL使用方法 ├── ESP32的REPL使用方法.md ├── image │ └── ad.png └── src │ ├── led.py │ └── main.py ├── 03_GPIO输出与控制LED亮灭 ├── GPIO输出控制小灯亮灭.md ├── image │ └── analog_vs_digitial.jpeg └── src │ ├── RGB三色流水灯 │ ├── rgb_v1.py │ ├── rgb_v2.py │ ├── rgb_v3.py │ └── rgb_v4.py │ ├── led.py │ ├── led_on.py │ └── test_led.py ├── 04_延时函数与LED闪烁 ├── image │ └── helloworld.png ├── src │ ├── blink_led_v1.py │ ├── blink_led_v2.py │ ├── delay_demo.py │ └── led.py └── 延时函数与LED闪烁.md ├── 05_PWM与呼吸灯 ├── PWM与呼吸灯.md ├── image │ └── pwm.jpg └── src │ ├── breath_led_v1.py │ ├── breath_led_v2.py │ ├── led.py │ └── test_led.py ├── 06_GPIO输入与按键控制LED小灯 ├── .vscode │ └── settings.json ├── GPIO输入与用户按键控制LED开关.md ├── image │ └── button-bouncing.png └── src │ ├── button_counter.py │ ├── button_counter_by_irq.py │ ├── button_ctrl_led.py │ ├── button_read_value.py │ ├── button_status.py │ ├── led.py │ └── 按键状态动态绘制_串口 │ ├── button_status_esp32_uart.py │ └── button_status_pc_matplotlib.py ├── 07_IRQ外部中断与按键控制LED小灯 ├── IRQ外部中断与按键控制LED小灯.md └── src │ ├── button.py │ ├── button_irq_counter_v1.py │ ├── button_irq_counter_v2.py │ ├── button_irq_counter_v3.py │ ├── button_irq_ctl_led_v1.py │ ├── button_irq_ctl_led_v2.py │ └── led.py ├── 08_ADC采样与电位计控制LED亮度 ├── ADC采样与电位计控制LED亮度.md ├── image │ └── dianweiji.png └── src │ ├── adc_ctl_led_light.py │ ├── adc_demo.py │ ├── adc_value_mean.py │ ├── diy_voltmeter.py │ └── photoregister_smart_light.py ├── 09_DAC数字转模拟 ├── DAC数字转模拟.md └── src │ └── dac_demo_v1.py ├── 10_Timer定时器与LED闪烁 ├── Timer定时器与LED闪烁.md └── src │ ├── print_hello_world_period.py │ ├── print_timer_info.py │ ├── timer_led_blink.py │ └── timer_rgb_blink.py ├── 11_UART串口通信 ├── UART串口通信.md └── src │ ├── 二进制Binary_ESP32发送PC接收 │ ├── binary_listener_pc_pyserial.py │ ├── binary_publisher_esp32_uart.py │ ├── decode_value.py │ └── verify_test.py │ ├── 二进制Binary_PC发送ESP32接收 │ ├── TODO │ ├── binary_listener_esp32_uart.py │ └── binary_publisher_pc_pyserial.py │ ├── 二进制_ESP32自发自收 │ ├── binary_pub_and_recv.py │ └── str_pub_and_recv.py │ ├── 字节Byte_ESP32发送PC接收 │ ├── byte_listener_pc_pyserial.py │ └── byte_publisher_esp32_uart.py │ └── 字节Byte_PC发送ESP32接收 │ ├── byte_listener_esp32_uart.py │ └── byte_publisher_pc_pyserial.py ├── 14_WebREPL与MIcroIDE配置教程 ├── WebREPL与MIcroIDE配置教程.md └── image │ ├── bengbeng.jpeg │ ├── boot-setup.png │ ├── connect_wifi_success.png │ ├── micro-ide-01.png │ ├── microide-demo-02.png │ ├── microide-demo-03.png │ ├── microide-demo-05.png │ ├── microide-demo-07.png │ ├── microide-demo-08.png │ ├── microide-demo-09.png │ ├── microide-demo-10.png │ ├── microide-demo-terminal.png │ ├── microide-run-main.png │ ├── set_password_for_webrepl.png │ ├── webrepl_cfg_output.png │ ├── webrepl_enable.png │ ├── webrepl_setup.png │ └── wifi_connect_choose_and_password.png ├── 15_MQTT入门之概念解析 ├── MQTT入门之概念解析.md └── image │ ├── A1.png │ ├── A2.png │ ├── A3.png │ ├── A4.png │ ├── A5.jpeg │ ├── A6-1.png │ ├── A6-2.png │ ├── A6-3.png │ ├── A6-4.png │ ├── A6-5.png │ ├── A6-6.png │ ├── MQTT_DHT_01-400x157.jpg │ ├── MQTT_DHT_02-400x258.jpg │ ├── mosquitto_pub_sub.png │ └── paho-mqtt_pub_sub.png ├── 16_使用upip安装包 ├── image │ ├── emp-1zlab-pypi.png │ └── install_emp_1zlab.png └── 使用upip安装包.md ├── 17_ESP32接入WIFI热点 ├── ESP32接入WIFI热点.md └── image │ ├── wifi_active.png │ └── wifi_connect.png ├── 18_利用AMPY进行文件同步 └── 利用AMPY进行文件同步.md ├── 19_MQTT入门之项目实战 ├── MQTT入门之项目实战.md ├── image │ ├── MQTT_DHT_01-400x157.jpg │ ├── MQTT_DHT_02-400x258.jpg │ ├── mosquitto_pub_sub.png │ └── paho-mqtt_pub_sub.png └── src │ ├── esp32 │ ├── publisher.py │ └── subscriber.py │ └── pc │ ├── paho-mqtt-publisher.py │ └── paho-mqtt-subsriber.py ├── LICENSE ├── README.md └── libs ├── button.py └── led.py /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | *.egg-info/ 24 | .installed.cfg 25 | *.egg 26 | MANIFEST 27 | 28 | # PyInstaller 29 | # Usually these files are written by a python script from a template 30 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 31 | *.manifest 32 | *.spec 33 | 34 | # Installer logs 35 | pip-log.txt 36 | pip-delete-this-directory.txt 37 | 38 | # Unit test / coverage reports 39 | htmlcov/ 40 | .tox/ 41 | .coverage 42 | .coverage.* 43 | .cache 44 | nosetests.xml 45 | coverage.xml 46 | *.cover 47 | .hypothesis/ 48 | .pytest_cache/ 49 | 50 | # Translations 51 | *.mo 52 | *.pot 53 | 54 | # Django stuff: 55 | *.log 56 | local_settings.py 57 | db.sqlite3 58 | 59 | # Flask stuff: 60 | instance/ 61 | .webassets-cache 62 | 63 | # Scrapy stuff: 64 | .scrapy 65 | 66 | # Sphinx documentation 67 | docs/_build/ 68 | 69 | # PyBuilder 70 | target/ 71 | 72 | # Jupyter Notebook 73 | .ipynb_checkpoints 74 | 75 | # pyenv 76 | .python-version 77 | 78 | # celery beat schedule file 79 | celerybeat-schedule 80 | 81 | # SageMath parsed files 82 | *.sage.py 83 | 84 | # Environments 85 | .env 86 | .venv 87 | env/ 88 | venv/ 89 | ENV/ 90 | env.bak/ 91 | venv.bak/ 92 | 93 | # Spyder project settings 94 | .spyderproject 95 | .spyproject 96 | 97 | # Rope project settings 98 | .ropeproject 99 | 100 | # mkdocs documentation 101 | /site 102 | 103 | # mypy 104 | .mypy_cache/ 105 | -------------------------------------------------------------------------------- /01_MicroPython-ESP32固件烧录/MicroPython-ESP32固件烧录.md: -------------------------------------------------------------------------------- 1 | # MicroPython-ESP32固件烧录-1Z实验室 2 | 3 | 教程搬家到: 4 | http://www.1zlab.com/article/micropython-esp32-firmware-upload/ -------------------------------------------------------------------------------- /01_MicroPython-ESP32固件烧录/image/ad.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/01_MicroPython-ESP32固件烧录/image/ad.png -------------------------------------------------------------------------------- /01_MicroPython-ESP32固件烧录/固件/esp32spiram-20180919-v1.9.4-543-gdc77fdb7d.bin: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/01_MicroPython-ESP32固件烧录/固件/esp32spiram-20180919-v1.9.4-543-gdc77fdb7d.bin -------------------------------------------------------------------------------- /01_MicroPython-ESP32固件烧录/固件/flash.sh: -------------------------------------------------------------------------------- 1 | sudo esptool.py --chip esp32 --port /dev/ttyUSB0 write_flash -z 0x1000 esp32spiram-20180919-v1.9.4-543-gdc77fdb7d.bin 2 | -------------------------------------------------------------------------------- /02_ESP32的REPL使用方法/ESP32的REPL使用方法.md: -------------------------------------------------------------------------------- 1 | # ESP32的REPL使用方法与文件同步-1Z实验室 2 | 教程搬家至: 3 | http://www.1zlab.com/article/micropython-esp32-repl/ -------------------------------------------------------------------------------- /02_ESP32的REPL使用方法/image/ad.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/02_ESP32的REPL使用方法/image/ad.png -------------------------------------------------------------------------------- /02_ESP32的REPL使用方法/src/led.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 功能介绍： LED闪烁例程 3 | ''' 4 | import utime 5 | import machine 6 | 7 | # 声明一个引脚 例如 D13 作为LED的引脚 8 | led_pin = machine.Pin(13, machine.Pin.OUT) 9 | 10 | while True: 11 | # 点亮LED -> 高电平 12 | led_pin.value(1) 13 | # 延时 500ms 14 | utime.sleep_ms(500) 15 | # 关闭LED -> 低电平 16 | led_pin.value(0) 17 | # 延时500ms 18 | utime.sleep_ms(500) -------------------------------------------------------------------------------- /02_ESP32的REPL使用方法/src/main.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 功能介绍： LED闪烁例程 3 | ''' 4 | import utime 5 | import machine 6 | 7 | # 声明一个引脚 例如 D13 作为LED的引脚 8 | led_pin = machine.Pin(13, machine.Pin.OUT) 9 | 10 | while True: 11 | # 点亮LED -> 高电平 12 | led_pin.value(1) 13 | # 延时 500ms 14 | utime.sleep_ms(500) 15 | # 关闭LED -> 低电平 16 | led_pin.value(0) 17 | # 延时500ms 18 | utime.sleep_ms(500) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/GPIO输出控制小灯亮灭.md: -------------------------------------------------------------------------------- 1 | # GPIO控制小灯亮灭-1Z实验室 2 | 3 | 教程搬家至: 4 | http://www.1zlab.com/article/micropython-esp32-gpio-output-and-led-on-of-off/ -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/image/analog_vs_digitial.jpeg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/03_GPIO输出与控制LED亮灭/image/analog_vs_digitial.jpeg -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/RGB三色流水灯/rgb_v1.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 流水灯 RGB彩灯 3 | 4 | 版本 v1 5 | 版本备注： 6 | 原始的方法， 逐行， 不借助函数。 7 | ''' 8 | 9 | import machine 10 | import utime 11 | 12 | # 定义R 红色LED的引脚 13 | pinR = machine.Pin(18, machine.Pin.OUT) 14 | # 定义G 绿色LED的引脚 15 | pinG = machine.Pin(19, machine.Pin.OUT) 16 | # 定义B 蓝色LED的引脚 17 | pinB = machine.Pin(21, machine.Pin.OUT) 18 | 19 | 20 | while True: 21 | # 第一步：红色LED闪烁 22 | pinR.value(1) # 红色LED的管脚输出高电平 23 | utime.sleep_ms(500) # 延时500ms 24 | pinR.value(0) # 红色LED的管脚输出低电平 25 | utime.sleep_ms(500) # 延时500ms 26 | 27 | # 第二步：绿色LED闪烁 28 | pinG.value(1) # 绿色LED管脚输出高电平 29 | utime.sleep_ms(500) 30 | pinG.value(0) # 绿色LED管脚输出低电平 31 | utime.sleep_ms(500) 32 | 33 | # 第三步：蓝色LED闪烁 34 | pinB.value(1) # 蓝色LED管脚输出低电平 35 | utime.sleep_ms(500) 36 | pinB.value(0) # 蓝色LED管脚输出低电平 37 | utime.sleep_ms(500) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/RGB三色流水灯/rgb_v2.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 流水灯 RGB彩灯 3 | 4 | 版本 v2 5 | 版本备注： 6 | 使用函数 led_blink() 简化代码 7 | ''' 8 | 9 | import machine 10 | import utime 11 | 12 | # 定义R 红色LED的引脚 13 | pinR = machine.Pin(18, machine.Pin.OUT) 14 | # 定义G 绿色LED的引脚 15 | pinG = machine.Pin(19, machine.Pin.OUT) 16 | # 定义B 蓝色LED的引脚 17 | pinB = machine.Pin(21, machine.Pin.OUT) 18 | 19 | 20 | def led_blink(led_pin, delay_ms=500): 21 | ''' 22 | 控制led的引脚（led_pin）进行闪烁 23 | 时间间隔为 delay_ms ， 默认为500ms 24 | ''' 25 | led_pin.value(1) # LED的管脚输出高电平 26 | utime.sleep_ms(delay_ms) # 延时500ms 27 | led_pin.value(0) # LED的管脚输出低电平 28 | utime.sleep_ms(delay_ms) # 延时500ms 29 | 30 | 31 | while True: 32 | # 第一步：红色LED闪烁 33 | led_blink(pinR) 34 | 35 | # 第二步：绿色LED闪烁 36 | led_blink(pinG) 37 | 38 | # 第三步：蓝色LED闪烁 时间间隔设定为1000ms = 1s 39 | led_blink(pinB, delay_ms=1000) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/RGB三色流水灯/rgb_v3.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 流水灯 RGB彩灯 3 | 4 | 版本 v3 5 | 版本备注： 6 | 通过设定跑马灯的数组，简化流程 7 | ''' 8 | 9 | import machine 10 | import utime 11 | 12 | 13 | ''' 14 | # -------静态初始化led_pins数组--------- 15 | # 定义R 红色LED的引脚 16 | pinR = machine.Pin(18, machine.Pin.OUT) 17 | # 定义G 绿色LED的引脚 18 | pinG = machine.Pin(19, machine.Pin.OUT) 19 | # 定义B 蓝色LED的引脚 20 | pinB = machine.Pin(21, machine.Pin.OUT) 21 | 22 | # 初始化led数组 23 | led_pins = [pinR, pinG, pinB] 24 | ''' 25 | 26 | # -----动态加载led_pins数组----- 27 | 28 | led_pin_nums = [18, 19, 21] # 定义led对应的管脚 29 | led_pins = [] # 存储引脚对象数组 30 | 31 | for pin_num in led_pin_nums: 32 | # 声明一个新的pin对象 33 | pin = machine.Pin(pin_num, machine.Pin.OUT) 34 | # 将pin添加到数组led_pins的末尾 35 | led_pins.append(pin) 36 | 37 | 38 | def led_blink(led_pin, delay_ms=500): 39 | ''' 40 | 控制led的引脚（led_pin）进行闪烁 41 | 时间间隔为 delay_ms ， 默认为500ms 42 | ''' 43 | led_pin.value(1) # LED的管脚输出高电平 44 | utime.sleep_ms(delay_ms) # 延时500ms 45 | led_pin.value(0) # LED的管脚输出低电平 46 | utime.sleep_ms(delay_ms) # 延时500ms 47 | 48 | 49 | while True: 50 | 51 | for pin in led_pins: 52 | # 遍历数组led_pins中所有的pin实例，并执行闪烁函数 53 | led_blink(pin) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/RGB三色流水灯/rgb_v4.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 流水灯 RGB彩灯 3 | 4 | 版本 v4 5 | 版本备注： 6 | 利用列表推导式，初始化数组，简化流程 7 | ''' 8 | 9 | import machine 10 | import utime 11 | 12 | 13 | 14 | led_pin_nums = [18, 19, 21] # 定义led对应的管脚 15 | # 使用Python的推到式生成 LED数组 16 | led_pins = [machine.Pin(pin_num, machine.Pin.OUT) for pin_num in led_pin_nums] 17 | 18 | 19 | def led_blink(led_pin, delay_ms=500): 20 | ''' 21 | 控制led的引脚（led_pin）进行闪烁 22 | 时间间隔为 delay_ms ， 默认为500ms 23 | ''' 24 | led_pin.value(1) # LED的管脚输出高电平 25 | utime.sleep_ms(delay_ms) # 延时500ms 26 | led_pin.value(0) # LED的管脚输出低电平 27 | utime.sleep_ms(delay_ms) # 延时500ms 28 | 29 | 30 | while True: 31 | 32 | for pin in led_pins: 33 | # 遍历数组led_pins中所有的pin实例，并执行闪烁函数 34 | led_blink(pin) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/led.py: -------------------------------------------------------------------------------- 1 | from machine import Pin 2 | 3 | class LED: 4 | def __init__(self, led_id): 5 | # LED字典 6 | # 数据结构： (gpio管脚编号， LED灭的电平， LED亮的电平) 7 | led_list = [(2, False, True),(13, True, False)] 8 | 9 | if led_id >= len(led_list) or led_id < 0: 10 | print('ERROR：LED编号无效， 有效ID：{} - {}'.format(0, len(led_list-1))) 11 | return None 12 | 13 | gpio_id, self.LED_OFF, self.LED_ON = led_list[led_id] 14 | self.led_pin = Pin(gpio_id, Pin.OUT) 15 | 16 | def on(self): 17 | ''' 18 | 打开LED 19 | ''' 20 | self.led_pin.value(self.LED_ON) 21 | 22 | def off(self): 23 | ''' 24 | 关闭LED 25 | ''' 26 | self.led_pin.value(self.LED_OFF) 27 | 28 | def toggle(self): 29 | ''' 30 | 切换LED的状态 31 | OFF -> ON 32 | ON -> OFF 33 | ''' 34 | self.led_pin.value(not self.led_pin.value()) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/led_on.py: -------------------------------------------------------------------------------- 1 | from machine import Pin 2 | # 创建一个Pin的对象，传入GPIO的编号 3 | led_pin = Pin(3, Pin.OUT) 4 | # Pin13 输出高电平 打开LED 5 | LED_ON = 0 # LED亮的时候的电平 6 | LED_OFF = 1 # LED灭的时候的电平 7 | 8 | # 小灯灭 9 | # led_pin.value(LED_OFF) 10 | 11 | # 小灯亮 12 | led_pin.value(LED_ON) -------------------------------------------------------------------------------- /03_GPIO输出与控制LED亮灭/src/test_led.py: -------------------------------------------------------------------------------- 1 | from led import LED 2 | # 提示: 你也可以尝试LED(1) 3 | # 创建一个LED对象 4 | led0 = LED(0) 5 | 6 | # 开启LED 7 | led0.on() 8 | 9 | # 关闭LED 10 | # led0.off() 11 | 12 | # 切换LED的状态 13 | # led0.toggle() -------------------------------------------------------------------------------- /04_延时函数与LED闪烁/image/helloworld.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/04_延时函数与LED闪烁/image/helloworld.png -------------------------------------------------------------------------------- /04_延时函数与LED闪烁/src/blink_led_v1.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 功能介绍： LED闪烁例程 3 | 4 | 版本： v1 5 | 版本说明： 6 | 逐行控制高低电平与延迟 7 | ''' 8 | import utime 9 | from led import LED 10 | 11 | # 声明一个LED对象 （P2） 12 | led = LED(0) 13 | 14 | while True: 15 | # 点亮LED 16 | led.on() 17 | # 延时 500ms 18 | utime.sleep_ms(500) 19 | # 关闭LED 20 | led.off() 21 | # 延时500ms 22 | utime.sleep_ms(500) -------------------------------------------------------------------------------- /04_延时函数与LED闪烁/src/blink_led_v2.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 功能介绍： LED闪烁例程 3 | 4 | 版本 v2 5 | 版本说明： 利用函数实现led闪烁 6 | ''' 7 | import utime 8 | from led import LED 9 | 10 | # 声明一个LED （P2） 11 | led = LED(0) 12 | 13 | def led_blink(led_pin, delay_ms=500): 14 | ''' 15 | 控制led的引脚（led_pin）进行闪烁 16 | 时间间隔为 delay_ms ， 默认为500ms 17 | ''' 18 | global led 19 | led.toggle() # 切换LED的状态 20 | utime.sleep_ms(delay_ms) # 延时500ms 21 | 22 | while True: 23 | led_blink(led_pin, delay_ms=500) 24 | # led_blink(led_pin, delay_ms=100) -------------------------------------------------------------------------------- /04_延时函数与LED闪烁/src/delay_demo.py: -------------------------------------------------------------------------------- 1 | 2 | ''' 3 | 演示延时功能 4 | 每隔1s(1000 ms) 打印一个hello_world 5 | ''' 6 | 7 | import utime 8 | 9 | 10 | while True: 11 | print('Hello World!!!') 12 | utime.sleep_ms(1000) 13 | -------------------------------------------------------------------------------- /04_延时函数与LED闪烁/src/led.py: -------------------------------------------------------------------------------- 1 | from machine import Pin 2 | 3 | class LED: 4 | def __init__(self, led_id): 5 | # LED字典 6 | # 数据结构： (gpio管脚编号， LED灭的电平， LED亮的电平) 7 | led_list = [(2, False, True),(13, True, False)] 8 | 9 | if led_id >= len(led_list) or led_id < 0: 10 | print('ERROR：LED编号无效， 有效ID：{} - {}'.format(0, len(led_list-1))) 11 | return None 12 | 13 | gpio_id, self.LED_OFF, self.LED_ON = led_list[led_id] 14 | self.led_pin = Pin(gpio_id, Pin.OUT) 15 | 16 | def on(self): 17 | ''' 18 | 打开LED 19 | ''' 20 | self.led_pin.value(self.LED_ON) 21 | 22 | def off(self): 23 | ''' 24 | 关闭LED 25 | ''' 26 | self.led_pin.value(self.LED_OFF) 27 | 28 | def toggle(self): 29 | ''' 30 | 切换LED的状态 31 | OFF -> ON 32 | ON -> OFF 33 | ''' 34 | self.led_pin.value(not self.led_pin.value()) -------------------------------------------------------------------------------- /04_延时函数与LED闪烁/延时函数与LED闪烁.md: -------------------------------------------------------------------------------- 1 | # 延时函数与LED闪烁 2 | 3 | 教程搬家至 4 | http://www.1zlab.com/article/micropython-esp32-delay-and-led-blink/ -------------------------------------------------------------------------------- /05_PWM与呼吸灯/PWM与呼吸灯.md: -------------------------------------------------------------------------------- 1 | # PWM与呼吸灯-MicroPython-ESP32-1Z实验室 2 | 3 | 教程搬家到: 4 | http://www.1zlab.com/article/pwm-control-and-breath-led/ -------------------------------------------------------------------------------- /05_PWM与呼吸灯/image/pwm.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/05_PWM与呼吸灯/image/pwm.jpg -------------------------------------------------------------------------------- /05_PWM与呼吸灯/src/breath_led_v1.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 呼吸灯测试程序 3 | v1 4 | ''' 5 | import machine 6 | import utime, math 7 | 8 | # 初始化一个PWM对象叫做 led_pwm 9 | led_pwm = machine.PWM(machine.Pin(12), freq=1000) 10 | 11 | def pulse(led_pwm, delay): 12 | # 呼吸灯核心代码 13 | # 借用sin正弦函数，将PWM范围控制在 0 - 1000范围内 14 | for i in range(20): 15 | led_pwm.duty(int(math.sin(i / 10 * math.pi) * 500 + 500)) 16 | # 延时delay个ms 17 | utime.sleep_ms(delay) 18 | try: 19 | while True: 20 | pulse(led_pwm, 50) 21 | except: 22 | # 销毁PWM对象 23 | led_pwm.deinit() -------------------------------------------------------------------------------- /05_PWM与呼吸灯/src/breath_led_v2.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 呼吸灯测试程序 3 | v2 使用led.py 4 | ''' 5 | import machine 6 | import utime, math 7 | from led import LED 8 | 9 | # 初始化一个PWM对象叫做 led_pwm 10 | led = LED(0) 11 | 12 | def pulse(led, delay): 13 | # 呼吸灯核心代码 14 | # 借用sin正弦函数，将PWM范围控制在 0 - 1000范围内 15 | for i in range(20): 16 | value = int(math.sin(i / 10 * math.pi) * 500 + 500) 17 | # 设置LED的亮度 18 | led.intensity(value) 19 | # 延时delay个ms 20 | utime.sleep_ms(delay) 21 | try: 22 | while True: 23 | pulse(led, 50) 24 | except: 25 | # 销毁PWM对象 26 | led.deinit() -------------------------------------------------------------------------------- /05_PWM与呼吸灯/src/led.py: -------------------------------------------------------------------------------- 1 | ''' 2 | LED类 3 | v2 添加LED亮度控制 4 | ''' 5 | from machine import Pin, PWM 6 | 7 | class LED: 8 | def __init__(self, led_id): 9 | # LED字典 10 | # 数据结构： (gpio管脚编号， LED灭的电平， LED亮的电平) 11 | led_list = [(2, False, True),(13, True, False)] 12 | 13 | if led_id >= len(led_list) or led_id < 0: 14 | print('ERROR：LED编号无效， 有效ID：{} - {}'.format(0, len(led_list-1))) 15 | return None 16 | 17 | gpio_id, self.LED_OFF, self.LED_ON = led_list[led_id] 18 | self.pin = Pin(gpio_id, Pin.OUT) 19 | self.pwm = PWM(self.pin, freq=1000) 20 | 21 | def on(self): 22 | ''' 23 | 打开LED 24 | ''' 25 | self.pin.value(self.LED_ON) 26 | 27 | def off(self): 28 | ''' 29 | 关闭LED 30 | ''' 31 | self.pin.value(self.LED_OFF) 32 | 33 | def toggle(self): 34 | ''' 35 | 切换LED的状态 36 | OFF -> ON 37 | ON -> OFF 38 | ''' 39 | self.pin.value(not self.pin.value()) 40 | 41 | def intensity(self, value): 42 | ''' 43 | 设置LED的亮度 44 | ''' 45 | if self.LED_ON == True: 46 | self.pwm.duty(value) 47 | else: 48 | self.pwm.duty(1023 - value) 49 | 50 | def deinit(self): 51 | ''' 52 | 销毁资源 53 | ''' 54 | self.pwm.deinit() -------------------------------------------------------------------------------- /05_PWM与呼吸灯/src/test_led.py: -------------------------------------------------------------------------------- 1 | from led import LED 2 | 3 | # 实例化一个LED 4 | led = LED(0) 5 | # 设置LED的亮度 6 | led.intensity(500) -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "python.linting.enabled": false 3 | } -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/GPIO输入与用户按键控制LED开关.md: -------------------------------------------------------------------------------- 1 | # GPIO输入与用户按键控制LED开关-1Z实验室 2 | 3 | 4 | 教程搬家到: 5 | 6 | http://www.1zlab.com/article/micropython-esp32-gpio-output-button-control-led/ -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/image/button-bouncing.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/06_GPIO输入与按键控制LED小灯/image/button-bouncing.png -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/button_counter.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键计数器 每按一下，数值加1 3 | 4 | 存在按键抖动的问题 5 | ''' 6 | from machine import Pin 7 | import utime 8 | 9 | # 用户按键GPIO 10 | # PyESPCar上自带的用户按键在39号管脚 11 | USER_BTN = 39 12 | # 按键引脚对象 13 | button = Pin(USER_BTN, Pin.IN) 14 | 15 | # 定义按键按下的值 （取决于按键模块的设计， 有可能相反） 16 | BTN_DOWN = 0 # 按键按下对应的取值 17 | BTN_UP = 1 # 按键抬起对应的状态 18 | 19 | # 记录上一次按键的状态 20 | last_btn_status = BTN_UP 21 | counter = 0 # 计数器 22 | 23 | print("按下按键， 会计数哦") 24 | while True: 25 | # 获取按钮状态 26 | btn_status = button.value() 27 | 28 | if btn_status == BTN_DOWN and last_btn_status == BTN_UP: 29 | print("按键按下") 30 | counter += 1 31 | print("Counter += 1 ; Counter = %d"%(counter)) 32 | 33 | last_btn_status = btn_status 34 | # 延时100ms 35 | utime.sleep_ms(100) 36 | -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/button_counter_by_irq.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 利用按键中断， 实现按键计数器 每按一下，数值加1 3 | ''' 4 | 5 | from machine import Pin 6 | import utime 7 | 8 | # 用户按键GPIO 9 | # PyESPCar上自带的用户按键在39号管脚 10 | USER_BTN = 39 11 | # 引脚 12 | button = Pin(USER_BTN, Pin.IN) 13 | 14 | # 定义按键按下的值 （取决于按键模块的设计， 有可能相反） 15 | # BTN_DOWN = 0 # 按键按下对应的取值 16 | # BTN_UP = 1 # 按键抬起对应的状态 17 | 18 | counter = 0 # 计数器 19 | 20 | def counter_callback(pin): 21 | ''' 22 | 计数器回调函数 23 | ''' 24 | 25 | global counter 26 | 27 | # 添加软件消抖 28 | utime.sleep_ms(150) 29 | if pin.value() == 0: 30 | counter += 1 31 | print("Counter += 1 ; Counter = %d"%(counter)) 32 | 33 | 34 | button.irq(trigger=Pin.IRQ_FALLING, handler=counter_callback) 35 | print("按下按键， 会计数哦") 36 | 37 | while True: 38 | print("do something...") 39 | utime.sleep_ms(500) 40 | 41 | 42 | -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/button_ctrl_led.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键控制LED亮灭 3 | 状态转换 4 | ''' 5 | from machine import Pin 6 | import utime 7 | from led import LED 8 | # 按键 9 | # 用户按键GPIO 10 | # PyESPCar上自带的用户按键在39号管脚 11 | USER_BTN = 39 12 | # 按键引脚对象 13 | button = Pin(USER_BTN, Pin.IN) 14 | # 创建一个LED对象 15 | led = LED(0) 16 | 17 | 18 | # 定义按键按下的值 （取决于按键模块的设计， 有可能相反） 19 | BTN_DOWN = 0 # 按键按下对应的取值 20 | BTN_UP = 1 # 按键抬起对应的状态 21 | last_btn_status = None 22 | 23 | while True: 24 | # 获取按钮状态 25 | btn_status = button.value() 26 | 27 | if btn_status == BTN_DOWN and last_btn_status == BTN_UP: 28 | # 切换LED状态 29 | led.toggle() 30 | print("按键按下,LED状态转换 LED: {}".format(led.pin.value() == led.LED_ON)) 31 | 32 | last_btn_status = btn_status 33 | # 延时500ms 34 | utime.sleep_ms(150) 35 | -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/button_read_value.py: -------------------------------------------------------------------------------- 1 | from machine import Pin 2 | 3 | # 用户按键GPIO 4 | # PyESPCar上自带的用户按键在39号管脚 5 | USER_BTN = 39 6 | # 按键引脚对象 7 | button = Pin(USER_BTN, Pin.IN) 8 | 9 | # 打印当前按键的电平 0 / 1 10 | button.value() -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/button_status.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 打印按键的状态 3 | ''' 4 | from machine import Pin 5 | import utime 6 | 7 | # 用户按键GPIO 8 | # PyESPCar上自带的用户按键在39号管脚 9 | USER_BTN = 39 10 | # 按键引脚对象 11 | button = Pin(USER_BTN, Pin.IN) 12 | 13 | # 定义按键按下的值 （取决于按键模块的设计， 有可能相反） 14 | BTN_DOWN = 0 # 按键按下对应的取值 15 | BTN_UP = 1 # 按键抬起对应的状态 16 | 17 | while True: 18 | # 获取按钮状态 19 | btn_status = button.value() 20 | 21 | if btn_status == BTN_DOWN: 22 | print("按键状态：按下 <<<<<<<<") 23 | else: 24 | print("按键状态：抬起 ========") 25 | # 延时500ms 26 | utime.sleep_ms(100) 27 | -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/led.py: -------------------------------------------------------------------------------- 1 | ''' 2 | LED类 3 | v2 添加LED亮度控制 4 | ''' 5 | from machine import Pin, PWM 6 | 7 | class LED: 8 | def __init__(self, led_id): 9 | # LED字典 10 | # 数据结构： (gpio管脚编号， LED灭的电平， LED亮的电平) 11 | led_list = [(2, False, True),(13, True, False)] 12 | 13 | if led_id >= len(led_list) or led_id < 0: 14 | print('ERROR：LED编号无效， 有效ID：{} - {}'.format(0, len(led_list-1))) 15 | return None 16 | 17 | gpio_id, self.LED_OFF, self.LED_ON = led_list[led_id] 18 | self.pin = Pin(gpio_id, Pin.OUT) 19 | self.pwm = PWM(self.pin, freq=1000) 20 | 21 | def on(self): 22 | ''' 23 | 打开LED 24 | ''' 25 | self.pin.value(self.LED_ON) 26 | 27 | def off(self): 28 | ''' 29 | 关闭LED 30 | ''' 31 | self.pin.value(self.LED_OFF) 32 | 33 | def toggle(self): 34 | ''' 35 | 切换LED的状态 36 | OFF -> ON 37 | ON -> OFF 38 | ''' 39 | self.pin.value(not self.pin.value()) 40 | 41 | def intensity(self, value): 42 | ''' 43 | 设置LED的亮度 44 | ''' 45 | if self.LED_ON == True: 46 | self.pwm.duty(value) 47 | else: 48 | self.pwm.duty(1023 - value) 49 | 50 | def deinit(self): 51 | ''' 52 | 销毁资源 53 | ''' 54 | self.pwm.deinit() -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/按键状态动态绘制_串口/button_status_esp32_uart.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | 获取按键的状态并通过串口发送 4 | 5 | 接线： 6 | ESP32,TDX,D12 -> RXD,CP2102 (USB转TTL) 7 | ESP32,RXD,D13 -> TXD,CP2102 (USB转TTL) 8 | ''' 9 | 10 | from machine import UART,Pin 11 | import utime 12 | import struct 13 | 14 | # 初始化串口 UART 15 | # 波特率 115200 16 | # rx -> Pin 13 17 | # tx -> Pin 12 18 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 19 | # 引脚 20 | button = Pin(5, Pin.IN) 21 | 22 | # 定义按键按下的值 （取决于按键模块的设计， 有可能相反） 23 | BTN_DOWN = 0 # 按键按下对应的取值 24 | BTN_UP = 1 # 按键抬起对应的状态 25 | 26 | 27 | while True: 28 | # 获取按钮状态 29 | btn_status = button.value() 30 | info = "{}\n".format(int(btn_status == BTN_DOWN)) 31 | # 串口发送 32 | uart.write(info) 33 | # 打印原始的字节数据() 34 | print("Send字符: "+info+"\n") 35 | utime.sleep_ms(10) 36 | 37 | -------------------------------------------------------------------------------- /06_GPIO输入与按键控制LED小灯/src/按键状态动态绘制_串口/button_status_pc_matplotlib.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | import serial 3 | import struct 4 | from matplotlib import pyplot as plt 5 | import threading, multiprocessing 6 | import time 7 | # 串口号 默认为 /dev/ttyUSB0 8 | ser_dev = '/dev/ttyUSB1' 9 | 10 | # 创建一个串口实例 11 | ser = serial.Serial(ser_dev,115200, timeout=1, bytesize=8) 12 | 13 | 14 | data_window = 1000 # 保留最近的400个数据点 15 | data_buffer = [0]*data_window # 数据缓存池 16 | 17 | 18 | def update_canvas(): 19 | global data_buffer 20 | ''' 21 | 更新绘制数据 22 | ''' 23 | while True: 24 | print("Begin 更新画面") 25 | plt.plot(data_buffer) 26 | plt.draw() 27 | plt.pause(0.04) 28 | print("END 更新画面") 29 | 30 | def update_btn_status(): 31 | global ser 32 | global data_buffer 33 | 34 | while True: 35 | # 读入一行数据 \n是换行符号 数据样式类似 '1\n' 或者 '0\n' 36 | info = ser.readline() 37 | # 讲接收的字节流转换成容易读取的样式 38 | print("Recv字符: "+info) 39 | # 注意接收过来的是字符串格式的数据 40 | # '1' -> 按键按下 41 | # ‘0’ -> 按键抬起 42 | print("按键状态 是否按下: {}".format(info[0]=='1')) 43 | # print("按键状态 是否按下: {}".format(int(info[0])==1)) 44 | 45 | data_buffer.pop(0) 46 | btn_status = int(info[0]) 47 | data_buffer.append(btn_status) 48 | time.sleep(0.001) 49 | 50 | plt.ylim((-1, 2)) 51 | plt.ion() 52 | plt.show() 53 | 54 | 55 | thread_canvas = threading.Thread(target=update_canvas) 56 | thread_canvas.start() 57 | 58 | thread_serial = threading.Thread(target=update_btn_status) 59 | thread_serial.start() 60 | 61 | -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/IRQ外部中断与按键控制LED小灯.md: -------------------------------------------------------------------------------- 1 | # IRQ外部中断与按键控制LED小灯 2 | 3 | 教程搬家到: 4 | http://www.1zlab.com/article/micropython-esp32-irq-interrupt-and-button-control-led/ 5 | -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/button.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键类Button 3 | ''' 4 | from machine import Pin 5 | import utime 6 | 7 | class Button(object): 8 | ''' 9 | 按键对象 10 | ''' 11 | def __init__(self,button_idx, callback=None): 12 | # 按键字典 13 | # 数据结构： (GPIO编号，按键抬起的电平， 按键按下的电平) 14 | button_list = [(39, False, True)] 15 | 16 | if button_idx < 0 or button_idx >= len(button_list): 17 | print("ERROR: Wrong Button Index") 18 | print("Valid Button Index: {} - {}".format(0, len(button_list)-1)) 19 | return None 20 | 21 | gpio_id, self.BUTTON_RELEASE, self.BUTTON_PRESS, = button_list[button_idx] 22 | # 按键 23 | self.pin = Pin(gpio_id, Pin.IN) 24 | # 回调函数 25 | self.callback = callback 26 | # 设置外部中断 27 | if self.BUTTON_PRESS == True: 28 | self.pin.irq(trigger=Pin.IRQ_RISING, handler=self.irq_handler) 29 | else: 30 | self.pin.irq(trigger=Pin.IRQ_FALLING, handler=self.irq_handler) 31 | 32 | # 标志位 当前是否可以相应按键中断 33 | self.flag = True 34 | 35 | def irq_handler(self, irq_pin): 36 | ''' 37 | 外部中断的相应函数 38 | ''' 39 | # 如果当前正在处理中断，则忽略 40 | if not self.flag: 41 | return 42 | # 添加软件滤波 43 | utime.sleep_ms(50) 44 | if self.pin.value() == self.BUTTON_PRESS: 45 | # 判断当前按键状态是不是按下，如果是，则执行回调函数 46 | if self.flag and self.callback is not None: 47 | self.flag = False 48 | # 执行回调函数 49 | self.callback(self.pin) 50 | self.flag = True 51 | 52 | def deinit(self): 53 | ''' 54 | 销毁资源 55 | ''' 56 | self.pin.irq(trigger=0, handler=None) # 销毁外部中断的资源 57 | 58 | -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/button_irq_counter_v1.py: -------------------------------------------------------------------------------- 1 | ''' 2 | [功能描述] 3 | 按键外部中断 记录中断的次数 4 | 5 | [备注] 6 | 按键模块 未按下的电平是1, 按下电平是0, 所以要检测是电平的下降沿 IRQ_FALLING 7 | 8 | [存在问题] 9 | 按下一次，但是计数器增加多个，这个是因为按键在按下的时候产生了 抖动 10 | 所以我们需要做消抖操作！！！ 11 | ''' 12 | from machine import Pin 13 | 14 | # 用户按键GPIO 15 | # PyESPCar上自带的用户按键在39号管脚 16 | USER_BTN = 39 17 | # 引脚 18 | button = Pin(USER_BTN, Pin.IN) 19 | 20 | counter = 0 # 中断计数器 21 | def button_irq_handle(pin): 22 | ''' 23 | 外部中断处理函数 24 | 回调函数传入的参数为产生中断的Pin管脚对象 25 | ''' 26 | global counter 27 | print('外部中断 下降沿触发， 中断计数:{}'.format(counter)) 28 | print('当前管脚电平 ： {}'.format(pin.value())) 29 | counter += 1 30 | 31 | # 下降沿触发 32 | button.irq(trigger=Pin.IRQ_RISING, handler=button_irq_handle) 33 | 34 | 35 | try: 36 | while True: 37 | pass 38 | except: 39 | # 释放按键的IRQ资源 40 | button.irq(trigger=0, handler=None) -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/button_irq_counter_v2.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键IRQ计数器 V2 3 | ''' 4 | from button import Button 5 | 6 | counter = 0 7 | def callback(irq_pin): 8 | ''' 9 | 切换LED的状态 10 | ''' 11 | global counter 12 | 13 | counter += 1 14 | print('Counter: {}'.format(counter)) 15 | 16 | 17 | # 创建一个Button对象，设置回调函数为callback 18 | button = Button(0, callback) 19 | 20 | try: 21 | while True: 22 | pass 23 | except: 24 | button.deinit() -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/button_irq_counter_v3.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键IRQ计数器 V3 3 | ''' 4 | from button import Button 5 | 6 | counter = 0 7 | def callback(irq_pin): 8 | ''' 9 | 切换LED的状态 10 | ''' 11 | global counter 12 | 13 | counter += 1 14 | 15 | 16 | 17 | # 创建一个Button对象，设置回调函数为callback 18 | button = Button(0, callback) 19 | 20 | # 记录上一次counter的取值 21 | old_counter = counter 22 | try: 23 | while True: 24 | if old_counter != counter: 25 | print('Counter: {}'.format(counter)) 26 | old_counter = counter 27 | except: 28 | button.deinit() -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/button_irq_ctl_led_v1.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键IRQ(外部中断)切换LED状态V1 3 | ''' 4 | from machine import Pin 5 | import utime 6 | from led import LED 7 | 8 | # 定义按键按下的值 （取决于按键模块的设计， 有可能相反） 9 | BTN_DOWN = 1 # 按键按下对应的取值 10 | BTN_UP = 0 # 按键抬起对应的状态 11 | 12 | # 用户按键GPIO 13 | # PyESPCar上自带的用户按键在39号管脚 14 | USER_BTN = 39 15 | # 引脚 16 | button = Pin(USER_BTN, Pin.IN) 17 | 18 | # 创建一个LED对象 19 | led = LED(0) 20 | 21 | def button_irq_handle(button): 22 | ''' 23 | 外部中断处理函数 24 | 回调函数传入的参数为产生中断的Pin管脚对象 25 | ''' 26 | global BTN_DOWN 27 | global led 28 | # 延时消抖 29 | utime.sleep_ms(50) 30 | if button.value() == BTN_DOWN: 31 | # 状态取反 32 | led.toggle() 33 | 34 | # 下降沿触发 35 | button.irq(trigger=Pin.IRQ_FALLING, handler=button_irq_handle) 36 | 37 | try: 38 | while True: 39 | pass 40 | except: 41 | # 释放按键的IRQ资源 42 | button.irq(trigger=0, handler=None) -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/button_irq_ctl_led_v2.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键IRQ切换LED状态V2 3 | 4 | 简直完美 5 | ''' 6 | from led import LED 7 | from button import Button 8 | 9 | 10 | # 创建LED对象 11 | led = LED(0) 12 | 13 | def callback(irq_pin): 14 | ''' 15 | 切换LED的状态 16 | ''' 17 | global led 18 | led.toggle() 19 | 20 | # 创建一个Button对象，设置回调函数为callback 21 | button = Button(0, callback) 22 | 23 | try: 24 | while True: 25 | pass 26 | except: 27 | button.deinit() -------------------------------------------------------------------------------- /07_IRQ外部中断与按键控制LED小灯/src/led.py: -------------------------------------------------------------------------------- 1 | ''' 2 | LED类 3 | v2 添加LED亮度控制 4 | ''' 5 | from machine import Pin, PWM 6 | 7 | class LED: 8 | def __init__(self, led_id): 9 | # LED字典 10 | # 数据结构： (gpio管脚编号， LED灭的电平， LED亮的电平) 11 | led_list = [(2, False, True),(13, True, False)] 12 | 13 | if led_id >= len(led_list) or led_id < 0: 14 | print('ERROR：LED编号无效， 有效ID：{} - {}'.format(0, len(led_list-1))) 15 | return None 16 | 17 | gpio_id, self.LED_OFF, self.LED_ON = led_list[led_id] 18 | self.pin = Pin(gpio_id, Pin.OUT) 19 | self.pwm = PWM(self.pin, freq=1000) 20 | 21 | def on(self): 22 | ''' 23 | 打开LED 24 | ''' 25 | self.pin.value(self.LED_ON) 26 | 27 | def off(self): 28 | ''' 29 | 关闭LED 30 | ''' 31 | self.pin.value(self.LED_OFF) 32 | 33 | def toggle(self): 34 | ''' 35 | 切换LED的状态 36 | OFF -> ON 37 | ON -> OFF 38 | ''' 39 | self.pin.value(not self.pin.value()) 40 | 41 | def intensity(self, value): 42 | ''' 43 | 设置LED的亮度 44 | ''' 45 | if self.LED_ON == True: 46 | self.pwm.duty(value) 47 | else: 48 | self.pwm.duty(1023 - value) 49 | 50 | def deinit(self): 51 | ''' 52 | 销毁资源 53 | ''' 54 | self.pwm.deinit() -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/ADC采样与电位计控制LED亮度.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | # ADC采样与电位计控制LED亮度 4 | 5 | 教程搬家至: 6 | http://www.1zlab.com/article/micropython-esp32-adc-sample-and-encoder-control-led/ -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/image/dianweiji.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/08_ADC采样与电位计控制LED亮度/image/dianweiji.png -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/src/adc_ctl_led_light.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 电位计采样，控制LED的亮度 3 | ''' 4 | from machine import ADC,Pin,PWM 5 | import utime 6 | 7 | # 2号引脚作为led引脚 8 | led_pin = Pin(2, Pin.OUT) 9 | led_pwm = PWM(led_pin) 10 | led_pwm.duty(0) 11 | led_pwm.freq(1000) 12 | 13 | # 设置D34号引脚作为ADC采样引脚 14 | pin_read = Pin(34,Pin.IN) 15 | # 声明ADC对象 16 | adc = ADC(pin_read) 17 | # 设置衰减比 满量程3.3v 18 | adc.atten(ADC.ATTN_11DB) 19 | # 设置数据宽度为10bit 20 | adc.width(ADC.WIDTH_10BIT) 21 | 22 | def mean_filter(adc, sample_times = 10): 23 | # 做一个简单的均值滤波 24 | value_sum = 0 25 | for i in range(sample_times): 26 | value_sum += adc.read() 27 | # 计算ADC采样的均值 28 | value_mean = value_sum / sample_times 29 | return value_mean 30 | 31 | last_value = 0 32 | while True: 33 | try: 34 | value_mean = mean_filter(adc) 35 | # 判断是否发生了变化 36 | if abs(last_value-value_mean) > 2: 37 | # 打印日志 38 | print("电位计采样: %d"%value_mean) 39 | # 根据adc采样 设定LED的duty 40 | # ADC采样与PWM占空比的范围都设定的是0-1023 41 | led_pwm.duty(int(value_mean)) 42 | # 更新last value 43 | last_value = value_mean 44 | # 延时100ms 45 | utime.sleep_ms(100) 46 | except: 47 | # 释放PWM资源 48 | led_pwm.deinit() -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/src/adc_demo.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 点位计 ADC采样 3 | 定时打印ADC采样的结果 4 | ''' 5 | from machine import ADC,Pin 6 | import utime 7 | 8 | 9 | # 设置D34号引脚作为ADC采样引脚 10 | pin_read = Pin(34,Pin.IN) 11 | # 声明ADC对象 12 | adc = ADC(pin_read) 13 | # 设置衰减比 满量程3.3v 14 | adc.atten(ADC.ATTN_11DB) 15 | # 设置数据宽度为10bit 16 | adc.width(ADC.WIDTH_10BIT) 17 | 18 | while True: 19 | # 数据采样 数值范围0-1023 20 | value = adc.read() 21 | # 打印日志 22 | print("Value: %d"%value) 23 | # 延时500ms 24 | utime.sleep_ms(500) -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/src/adc_value_mean.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 检测ADC采样值是否发生变化，如果发生变化就打印出来 3 | 采用均值滤波 4 | ''' 5 | from machine import ADC,Pin 6 | import utime 7 | 8 | 9 | # 设置D34号引脚作为ADC采样引脚 10 | pin_read = Pin(34,Pin.IN) 11 | # 声明ADC对象 12 | adc = ADC(pin_read) 13 | # 设置衰减比 满量程3.3v 14 | adc.atten(ADC.ATTN_11DB) 15 | # 设置数据宽度为10bit 16 | adc.width(ADC.WIDTH_10BIT) 17 | 18 | last_value = 0 19 | sample_times = 10 20 | while True: 21 | # 做一个简单的均值滤波 22 | value_sum = 0 23 | for i in range(sample_times): 24 | value_sum += adc.read() 25 | # 计算ADC采样的均值 26 | value_mean = value_sum / sample_times 27 | # 判断是否发生了变化 28 | if abs(last_value-value_mean) > 2: 29 | # 打印日志 30 | print("电位计采样: %d"%value_mean) 31 | # 更新last value 32 | last_value = value_mean 33 | # 延时100ms 34 | utime.sleep_ms(100) -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/src/diy_voltmeter.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 利用ADC 自制电压表 3 | 4 | 数字的数值范围 ，0-4095 5 | 测量范围 0v - 3.3v 注意： 不能越界 6 | ''' 7 | from machine import ADC,Pin 8 | import utime 9 | 10 | # 设置D34号引脚作为ADC采样引脚 11 | pin_read = Pin(34,Pin.IN) 12 | # 声明ADC对象 13 | adc = ADC(pin_read) 14 | 15 | 16 | def digtal2volt(digital_value): 17 | ''' 18 | 数字信号转换为实际的电压值 19 | ''' 20 | volt = (digital_value / 4095) * 3.3 21 | return volt 22 | 23 | 24 | while True: 25 | # 数据采样 模拟信号 -> 数字信号 26 | value = adc.read() 27 | # 打印日志 28 | print("Value: %d -> Volt: %.2fv"%(value, digtal2volt(value))) 29 | # 延时1s 30 | utime.sleep_ms(1000) 31 | -------------------------------------------------------------------------------- /08_ADC采样与电位计控制LED亮度/src/photoregister_smart_light.py: -------------------------------------------------------------------------------- 1 | ''' 2 | Smart LED 基于光敏电阻的智能照明 3 | 如果光照强度小于某个阈值，就开灯。 4 | ''' 5 | 6 | 7 | from machine import ADC,Pin 8 | import utime 9 | 10 | led_pin = Pin(2, Pin.OUT) 11 | # 设置D33号引脚作为ADC采样引脚 12 | pin_read = Pin(33, Pin.IN) 13 | 14 | # 声明ADC对象 15 | adc = ADC(pin_read) 16 | adc.atten(ADC.ATTN_11DB) 17 | adc.width(ADC.WIDTH_12BIT) 18 | 19 | # 设定阈值 20 | boudary = 2000 21 | 22 | while True: 23 | # 数据采样 模拟信号 -> 数字信号 24 | # 读取光照强度 illumination intensity 25 | intensity = adc.read() 26 | 27 | is_dark = intensity > boudary 28 | if is_dark: 29 | led_pin.value(1) 30 | else: 31 | led_pin.value(0) 32 | # 如果光照强度 33 | 34 | # 打印日志 35 | print("is Too Dark: {}".format(is_dark)) 36 | utime.sleep_ms(1000) 37 | 38 | -------------------------------------------------------------------------------- /09_DAC数字转模拟/DAC数字转模拟.md: -------------------------------------------------------------------------------- 1 | # DAC数字转模拟 2 | 3 | 教程搬家至: 4 | http://www.1zlab.com/article/micropython-esp32-dac/ -------------------------------------------------------------------------------- /09_DAC数字转模拟/src/dac_demo_v1.py: -------------------------------------------------------------------------------- 1 | ''' 2 | DAC的演示实例-DAC输出正弦波 3 | ''' 4 | from machine import DAC,Pin 5 | import math 6 | 7 | # 创建一个缓冲数组，用于存放一个sin波形 8 | buf = bytearray(100) 9 | for i in range(len(buf)): 10 | buf[i] = 128 + int(127 * math.sin(2*math.pi * i/len(buf))) 11 | 12 | 13 | dac = DAC(Pin(25), bits=12) # bits可选 8/12 14 | 15 | 16 | 17 | def write_sin_wave(): 18 | # 设定频率为400HZ 19 | dac.write(buf, 400*len(buf), mode=DAC.CIRCULAR) 20 | 21 | -------------------------------------------------------------------------------- /10_Timer定时器与LED闪烁/Timer定时器与LED闪烁.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | # Timer定时器与LED闪烁 4 | 5 | 教程搬家至: 6 | http://www.1zlab.com/article/micropython-esp32-timer-and-led-blink/ -------------------------------------------------------------------------------- /10_Timer定时器与LED闪烁/src/print_hello_world_period.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 利用定时器周期的打印HelloWorld 3 | ''' 4 | from machine import Timer 5 | 6 | timer_id = 10000 # TODO 这里timer id好像可以是任何值 -1会报错 7 | timer = Timer(timer_id) # 创建定时器对象 8 | 9 | def hello_world(t): 10 | print("Hello World") 11 | 12 | # 初始化定时器 13 | timer.init(period=1000, mode=Timer.PERIODIC , callback=hello_world) 14 | 15 | 16 | try: 17 | while True: 18 | # do nothing 什么也不做 19 | pass 20 | except: 21 | # 销毁定时器 22 | timer.deinit() 23 | -------------------------------------------------------------------------------- /10_Timer定时器与LED闪烁/src/print_timer_info.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 定时器演示实例， 打印定时器，讲解定时器的属性。 3 | ''' 4 | 5 | from machine import Timer 6 | import utime 7 | 8 | 9 | timer=Timer(1) 10 | 11 | 12 | def timer_print(timer): 13 | # 打印当前的计数 14 | print("Timer InteruptCount , counter= %d"%(timer.value())) 15 | print(timer) 16 | 17 | 18 | ''' 19 | 定时器　模式： 20 | Timer.ONE_SHOT --- 0 -- # 执行一次 21 | Timer.PERIODIC --- 1 -- # 循环执行 22 | ''' 23 | # timer.init(period=3000, mode=Timer.PERIODIC , callback=timer_print) #这里直接在回调函数中打印tim状态信息 24 | timer.init(period=1000, mode=Timer.PERIODIC , callback=lambda t: print("Counter: %d"%(t.value()))) 25 | 26 | 27 | try: 28 | while True: 29 | print("do something..., counter = %d"%(timer.value())) 30 | utime.sleep_ms(100) 31 | except: 32 | # 必须要有这个try except ,要不然 键盘中段不能让定时器停止 33 | # 禁用此定时器 34 | timer.deinit() 35 | 36 | ''' 37 | 样例打印： 38 | Timer(3ffe67a0; alarm_en=1, auto_reload=1, counter_en=1) 39 | Timer(3ffe67a0; alarm_en=1, auto_reload=1, counter_en=1) 40 | 。。。 41 | 42 | 3ffe67a0：创建定时器分配的内存空间首地址 43 | alarm_en : alarm_en：ONE_SHOT模式下，回调函数调用完成之后alarm_en=0，否则alarm_en=1；PERIODIC模式下，alarm_en=1。 44 | auto_reload: alarm_en：ONE_SHOT模式下，回调函数调用完成之后alarm_en=0，否则alarm_en=1；PERIODIC模式下，alarm_en=1。 45 | counter_en：参数为0时表示计数器没在计数（没有初始化之前或者调用deinit()之后），参数为1时表示计数器正在计数 46 | ''' -------------------------------------------------------------------------------- /10_Timer定时器与LED闪烁/src/timer_led_blink.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 定时器控制LED闪烁 3 | ''' 4 | from machine import Timer,Pin 5 | import utime 6 | 7 | 8 | def led_toggle(led_pin): 9 | ''' 10 | LED状态翻转 11 | ''' 12 | status = led_pin.value() 13 | status = (status + 1) % 2 14 | led_pin.value(status) 15 | 16 | 17 | def led_blink_timed(timer, led_pin, freq=10): 18 | ''' 19 | led 按照特定的频率进行闪烁 20 | LED闪烁周期 = 1000ms / 频率 21 | 状态变换间隔（period） = LED闪烁周期/ 2 22 | ''' 23 | # 计算状态变换间隔时间 ms 24 | period = int(0.5 * 1000 / freq) 25 | # 初始化定时器 26 | timer.init(period=period, mode=Timer.PERIODIC, callback=lambda t:led_toggle(led_pin)) 27 | 28 | 29 | # 声明引脚 D12 作为LED的引脚 30 | led_pin = Pin(12, Pin.OUT) 31 | timer = Timer(1) # 创建定时器对象 32 | led_blink_timed(timer, led_pin, freq=20) 33 | 34 | 35 | 36 | 37 | try: 38 | while True: 39 | # do nothing 什么也不做 40 | pass 41 | except: 42 | # 销毁定时器 43 | timer.deinit() 44 | -------------------------------------------------------------------------------- /10_Timer定时器与LED闪烁/src/timer_rgb_blink.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 利用定时器让RGB彩灯按照不同的频率闪烁 3 | ''' 4 | 5 | from machine import Timer,Pin 6 | import utime 7 | 8 | 9 | def led_toggle(led_pin): 10 | ''' 11 | LED状态翻转 12 | ''' 13 | status = led_pin.value() 14 | status = (status + 1) % 2 15 | led_pin.value(status) 16 | 17 | 18 | def led_blink_timed(timer, led_pin, freq=10): 19 | ''' 20 | led 按照特定的频率进行闪烁 21 | LED闪烁周期 = 1000ms / 频率 22 | 状态变换间隔（period） = LED闪烁周期/ 2 23 | ''' 24 | # 计算状态变换间隔时间 ms 25 | period = int(0.5 * 1000 / freq) 26 | # 初始化定时器 27 | timer.init(period=period, mode=Timer.PERIODIC, callback=lambda t:led_toggle(led_pin)) 28 | 29 | 30 | # 声明引脚 D32 作为LED的引脚 31 | red_pin = Pin(12, Pin.OUT) # 定义红色LED引脚 32 | red_timer = Timer(1) # 创建定时器对象 33 | led_blink_timed(red_timer, red_pin, freq=10) 34 | 35 | green_pin = Pin(14, Pin.OUT) # 定义绿色LED引脚 36 | green_timer = Timer(2) 37 | led_blink_timed(green_timer, green_pin, freq=15) 38 | 39 | blue_pin = Pin(27, Pin.OUT) # 定义蓝色LED引脚 40 | blue_timer = Timer(3) 41 | led_blink_timed(blue_timer, blue_pin, freq=20) 42 | 43 | 44 | 45 | try: 46 | while True: 47 | # do nothing 什么也不做 48 | pass 49 | except: 50 | # 销毁定时器 51 | red_timer.deinit() 52 | green_timer.deinit() 53 | blue_timer.deinit() 54 | -------------------------------------------------------------------------------- /11_UART串口通信/UART串口通信.md: -------------------------------------------------------------------------------- 1 | 2 | # UART串口通信-MicroPython-ESP32-1Z实验室 3 | 4 | 教程搬家至: 5 | http://www.1zlab.com/article/micropython-esp32-uart-communication/ -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_ESP32发送PC接收/binary_listener_pc_pyserial.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | PC上使用PySerial解析二进制数据 4 | 5 | ## 注意 6 | 运行此程序的时候，需要修改设备的权限， 7 | sudo chmod 777 /dev/ttyUSB? ，其中 ? = 0,1,2,... 8 | 或者使用管理员权限运行脚本 9 | sudo python xxxxx.py 10 | 11 | 12 | ## 样例输出 13 | Recv字节流: aa:ae:00:00:27:1c:ff:ff:f6:dd:3f:a5:47:11:0a 14 | 数据解析: x= 100.00, y= -24.00, value=1.291231 15 | 16 | ''' 17 | 18 | import serial 19 | import struct 20 | # 串口号 默认为 /dev/ttyUSB0 21 | ser_dev = '/dev/ttyUSB1' 22 | 23 | 24 | FRAME_BYTE_LEN = 15 # 通信协议里面每一帧字节的长度 25 | 26 | def depack_bin_data(byte_raw): 27 | ''' 28 | 将数据解包 29 | 根据通信协议，解析数据， 并校验帧头 30 | ''' 31 | global FRAME_BYTE_LEN 32 | 33 | if len(byte_raw) != FRAME_BYTE_LEN: 34 | # 检查数据帧长度是否满足条件 35 | raise ValueError("ERROR: 长度不满足条件") 36 | 37 | (verify_byte1, verify_byte2, x, y, value, _) = struct.unpack('>BBiifB', byte_raw) 38 | if verify_byte1 == 0xAA and verify_byte2 == 0xAE: 39 | x /= 100 # 恢复为实际数值范围 40 | y /= 100 # 恢复为实际数值范围 41 | return (x, y, value) 42 | else: 43 | raise ValueError("ERROR: 数据帧头校验失败") 44 | 45 | # 创建一个串口实例 46 | ser = serial.Serial(ser_dev,115200, timeout=1, bytesize=8) 47 | 48 | while True: 49 | # 读取的是byte类型 ，例如 50 | #　b'hello\n' 51 | # ser.read() # 注意：串口读取单个字节 (一个字节是16位) 52 | # ser.read(n) # 读入N个字节 53 | # print(ser.read()) 54 | 55 | # 读入一行数据 以EOF标识(\n)作为参考 56 | byte_raw = ser.readline() 57 | # 讲接收的字节流转换成容易读取的样式 58 | byte_str = ':'.join(["{:02x}".format(char_byte) for char_byte in bytearray(byte_raw)]) 59 | # 打印原始的字节数据() 60 | print("Recv字节流: "+byte_str) 61 | 62 | 63 | try: 64 | # 读取解析的数据 65 | x,y,value = depack_bin_data(byte_raw) 66 | print("数据解析: "+"x= %.2f, y= %.2f, value=%f\n"%(x, y, value)) 67 | 68 | except ValueError as e: 69 | # 若帧头不匹配 70 | print(e) -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_ESP32发送PC接收/binary_publisher_esp32_uart.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 串口发送信息 二进制数据 3 | 接线： 4 | ESP32,TDX,D12 -> RXD,CP2102 (USB转TTL) 5 | ESP32,RXD,D13 -> TXD,CP2102 (USB转TTL) 6 | ''' 7 | 8 | from machine import UART,Pin 9 | import struct 10 | import utime 11 | 12 | 13 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 14 | 15 | 16 | 17 | 18 | def pack_bin_data(x,y,value): 19 | ''' 20 | h: unsigned short bit=2 21 | b: unsigned char (byte): bit =1 22 | i: integer bit=4 23 | f: float bit=4 24 | 25 | b*2 + i*2 + f*1 26 | = 1*2 + 4*2 + 4*1 = 14byte 27 | 28 | ''' 29 | bin_data = struct.pack(">BBiifB", 30 | 0xAA, 31 | 0xAE, 32 | int(x * 100), # x坐标，精确到小数点后两位 33 | int(y * 100 ), # y坐标，精确到小数点后两位 34 | float(value), # 传感器读入的值，float类型 35 | 0x0A) # 结束符 \n = 0x0A 36 | print(bin_data) 37 | return bin_data 38 | 39 | x = 100.123 40 | y = -23.398 41 | value = 1.2912312352 42 | 43 | try: 44 | while True: 45 | # print(uart) 46 | uart.write(pack_bin_data(x, y, value)) 47 | utime.sleep_ms(1000) 48 | except: 49 | print("程序意外终端， Bye") -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_ESP32发送PC接收/decode_value.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | import struct 3 | 4 | data = b"\xaa\xae\x00\x00'\x1c\xff\xff\xf6\xdd?\xa5G\x11" 5 | 6 | print(data) 7 | (_,_,x,y,value) = struct.unpack('>BBiif',data) 8 | 9 | print(struct.unpack('>BBiif',data)) -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_ESP32发送PC接收/verify_test.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | 3 | def verify_data(byte_buffer, new_byte): 4 | # 校验 5 | veri_code = bytearray(b'\xaa\xae') 6 | # 校验字节长度 7 | veri_code_len = len(veri_code) 8 | 9 | byte_buffer.append(new_byte[0]) 10 | while len(byte_buffer) > veri_code_len: 11 | byte_buffer.pop() 12 | 13 | if len(byte_buffer) < veri_code_len: 14 | # 长度不足 15 | return False 16 | 17 | # print(veri_code) 18 | # print(byte_buffer) 19 | 20 | return veri_code == byte_buffer 21 | 22 | 23 | print(verify_data(bytearray(b'\xaa'),b'\xae')) -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_PC发送ESP32接收/TODO: -------------------------------------------------------------------------------- 1 | 2 | PC发送： 3 | Send字节流: 长度15 4 | aa:ae:00:00:27:1c:ff:ff:f6:dd:3f:a5:47:11:0a 5 | 6 | 7 | ESP32接收： 接收12 8 | aa:0d:00:12:f4:ff:5f:f7:2a:47:44:e1 9 | 10 | 11 | 12 | ? MicroPython 接收字节流有问题？ 13 | 字符跟str是UTF-8字节流 -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_PC发送ESP32接收/binary_listener_esp32_uart.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | ## 功能描述 4 | # 串口解析信息 二进制数据 5 | ## 接线： 6 | # ESP32,TDX,D12 -> RXD,CP2102 (USB转TTL) 7 | # ESP32,RXD,D13 -> TXD,CP2102 (USB转TTL) 8 | 9 | # TODO 数据解析 10 | # 运行过程中遭遇跳过 ？ ESP32的问题 11 | ''' 12 | from machine import UART,Pin 13 | import struct 14 | import utime 15 | 16 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 17 | 18 | 19 | def depack_bin_data(byte_raw): 20 | ''' 21 | 将数据解包 22 | 根据通信协议，解析数据， 并校验帧头 23 | ''' 24 | FRAME_BYTE_LEN = 15 25 | 26 | if len(byte_raw) != FRAME_BYTE_LEN: 27 | # 检查数据帧长度是否满足条件 28 | raise ValueError("ERROR: 长度不满足条件") 29 | 30 | (verify_byte1, verify_byte2, x, y, value, _) = struct.unpack('>BBiifB', byte_raw) 31 | if verify_byte1 == 0xAA and verify_byte2 == 0xAE: 32 | x /= 100 # 恢复为实际数值范围 33 | y /= 100 # 恢复为实际数值范围 34 | return (x, y, value) 35 | else: 36 | raise ValueError("ERROR: 数据帧头校验失败") 37 | 38 | 39 | 40 | while True: 41 | if uart.any(): 42 | print("Recv Raw Data") 43 | byte_raw = uart.readline() 44 | print(byte_raw) 45 | print(len(byte_raw)) 46 | # 讲接收的字节流转换成容易读取的样式 47 | # byte_str = ':'.join(['{:02x}'.format(char_byte) for char_byte in byte_raw]) 48 | try: 49 | (x, y,value) = depack_bin_data(byte_raw) 50 | print("x= %.2f y=%.2f value=%f"%(x, y, value)) 51 | except ValueError as e: 52 | print(e) 53 | # print(byte_raw) 54 | # print('.') 55 | utime.sleep_ms(1000) 56 | 57 | -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制Binary_PC发送ESP32接收/binary_publisher_pc_pyserial.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | PC使用PySerial发送数据 4 | 5 | ## 注意 6 | 运行此程序的时候，需要修改设备的权限， 7 | sudo chmod 777 /dev/ttyUSB? ，其中 ? = 0,1,2,... 8 | 或者使用管理员权限运行脚本 9 | sudo python xxxxx.py 10 | 11 | ''' 12 | import serial 13 | import struct 14 | import time 15 | 16 | # 串口号 默认为 /dev/ttyUSB0 17 | ser_dev = '/dev/ttyUSB1' 18 | # 创建一个串口实例 19 | ser = serial.Serial(ser_dev,115200, timeout=1, bytesize=8) 20 | 21 | 22 | def pack_bin_data(x,y,value): 23 | ''' 24 | h: unsigned short bit=2 25 | b: unsigned char (byte): bit =1 26 | i: integer bit=4 27 | f: float bit=4 28 | 29 | b*2 + i*2 + f*1 30 | = 1*3 + 4*2 + 4*1 = 15byte 31 | 32 | ''' 33 | 34 | bin_data = struct.pack(">BBiifB", 35 | 0xAA, 36 | 0xAE, 37 | int(x * 100), # x坐标，精确到小数点后两位 38 | int(y * 100 ), # y坐标，精确到小数点后两位 39 | float(value), # 传感器读入的值，float类型 40 | 0x0A) # 结束符 '\n = 0x0A 41 | return bin_data 42 | 43 | x = 100.123 44 | y = -23.398 45 | value = 1.2912312352 46 | 47 | byte_raw = pack_bin_data(x,y,value) 48 | 49 | while True: 50 | ser.write(byte_raw) 51 | # ser.write(b'\xAA') 52 | # ser.write('haha') 53 | # 讲接收的字节流转换成容易读取的样式 54 | byte_str = ':'.join(["{:02x}".format(char_byte) for char_byte in bytearray(byte_raw)]) 55 | # 打印原始的字节数据() 56 | print("Send字节流: "+byte_str+"\n") 57 | 58 | # 每隔10s发送一次数据 59 | time.sleep(3) 60 | -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制_ESP32自发自收/binary_pub_and_recv.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | ## 功能描述 4 | # 串口解析信息 二进制数据 5 | ## 接线： 6 | # ESP32,TDX,D13 -> RXD,CP2102 (USB转TTL) 7 | # ESP32,RXD,D12 -> TXD,CP2102 (USB转TTL) 8 | ''' 9 | from machine import UART,Pin 10 | import struct 11 | import utime 12 | # 初始化串口 UART 13 | # 波特率 115200 14 | # rx -> Pin 13 15 | # tx -> Pin 12 16 | 17 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 18 | 19 | def pack_bin_data(x,y,value): 20 | ''' 21 | h: unsigned short bit=2 22 | b: unsigned char (byte): bit =1 23 | i: integer bit=4 24 | f: float bit=4 25 | 26 | b*2 + i*2 + f*1 27 | = 1*2 + 4*2 + 4*1 = 14byte 28 | 29 | ''' 30 | bin_data = struct.pack(">BBiifB", 31 | 0xAA, 32 | 0xAE, 33 | int(x * 100), # x坐标，精确到小数点后两位 34 | int(y * 100 ), # y坐标，精确到小数点后两位 35 | float(value), # 传感器读入的值，float类型 36 | 0x0A) # 结束符 \n = 0x0A 37 | print(bin_data) 38 | return bin_data 39 | 40 | x = 100.123 41 | y = -23.398 42 | value = 1.2912312352 43 | 44 | while True: 45 | print('Send Data') 46 | print(pack_bin_data(x, y, value)) 47 | uart.write(pack_bin_data(x, y, value)) 48 | utime.sleep_ms(1000) 49 | print("Recv Data") 50 | # byte_raw = uart.readline() 51 | byte_raw = uart.read() 52 | print(len(byte_raw)) 53 | print(byte_raw) 54 | # 讲接收的字节流转换成容易读取的样式 55 | # byte_str = ':'.join(["{:02x}".format(char_byte) for char_byte in byte_raw]) 56 | # print(byte_str) 57 | # print(byte_raw) 58 | utime.sleep_ms(1000) 59 | -------------------------------------------------------------------------------- /11_UART串口通信/src/二进制_ESP32自发自收/str_pub_and_recv.py: -------------------------------------------------------------------------------- 1 | ''' 2 | ESP32串口通信-字符串数据自发实验 3 | 4 | 接线 将开发板的 13号引脚与12号引脚用杜邦线相连接。 5 | 6 | ''' 7 | from machine import UART,Pin 8 | import utime 9 | 10 | # 初始化一个UART对象 11 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 12 | 13 | count = 1 14 | 15 | while True: 16 | print('\n\n===============CNT {}==============='.format(count)) 17 | 18 | # 发送一条消息 19 | print('Send: {}'.format('hello {}\n'.format(count))) 20 | print('Send Byte :') # 发送字节数 21 | uart.write('hello {}\n'.format(count)) 22 | # 等待1s钟 23 | utime.sleep_ms(1000) 24 | 25 | if uart.any(): 26 | # 如果有数据 读入一行数据返回数据为字节类型 27 | # 例如 b'hello 1\n' 28 | bin_data = uart.readline() 29 | # 将手到的信息打印在终端 30 | print('Echo Byte: {}'.format(bin_data)) 31 | 32 | # 将字节数据转换为字符串 字节默认为UTF-8编码 33 | print('Echo String: {}'.format(bin_data.decode())) 34 | # 计数器+1 35 | count += 1 36 | print('---------------------------------------') -------------------------------------------------------------------------------- /11_UART串口通信/src/字节Byte_ESP32发送PC接收/byte_listener_pc_pyserial.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | PC上使用PySerial解析数据 4 | 接收byte字节数据 5 | 6 | 运行此程序的时候，需要修改设备的权限， 7 | 8 | sudo chmod 777 /dev/ttyUSB1 9 | 10 | ''' 11 | import serial 12 | 13 | # 串口号 默认为 /dev/ttyUSB0 14 | ser_dev = '/dev/ttyUSB1' 15 | 16 | 17 | ''' 18 | # 执行一次 19 | with serial.Serial(ser_dev,115200, timeout=1) as ser: 20 | print(ser) 21 | info = ser.readline() 22 | print(info) 23 | ''' 24 | 25 | ser = serial.Serial(ser_dev,115200, timeout=1) 26 | 27 | while True: 28 | # 读取的是byte类型 ，例如 29 | #　b'hello\n' 30 | # ser.read() # 读取单个字节 31 | # ser.read(n) # 读入N个字节 32 | info = ser.readline() # 读入一行数据 33 | 34 | # 打印接收的数据 35 | print(info) -------------------------------------------------------------------------------- /11_UART串口通信/src/字节Byte_ESP32发送PC接收/byte_publisher_esp32_uart.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 串口发送信息 （字符chuan） 3 | 接线： 4 | ESP32,TDX,D12 -> RXD,CP2102 (USB转TTL) 5 | ESP32,RXD,D13 -> TXD,CP2102 (USB转TTL) 6 | ''' 7 | 8 | from machine import UART,Pin 9 | import utime 10 | 11 | # 初始化串口 UART 12 | # 波特率 115200 13 | # rx -> Pin 13 14 | # tx -> Pin 12 15 | 16 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 17 | while True: 18 | # 句子后面需要添加结束符\n 19 | # 以方便PC上进行数据解析 20 | # uart.write("Fange: HelloWorld\r\n") 21 | uart.write("hello\n") 22 | # 时间间隔1s 23 | utime.sleep_ms(100) -------------------------------------------------------------------------------- /11_UART串口通信/src/字节Byte_PC发送ESP32接收/byte_listener_esp32_uart.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | 串口发送信息 （字符chuan） 4 | 接线： 5 | ESP32,TDX,D12 -> RXD,CP2102 (USB转TTL) 6 | ESP32,RXD,D13 -> TXD,CP2102 (USB转TTL) 7 | 8 | TODO 信息丢失或者损坏 9 | 栈不够用等一系列问题 10 | 11 | TODO byte解码问题， 失败 12 | ''' 13 | 14 | from machine import UART,Pin 15 | import utime 16 | 17 | # 初始化串口 UART 18 | # 波特率 115200 19 | # rx -> Pin 13 20 | # tx -> Pin 12 21 | 22 | # 注意，我们这里拓展了buffer的尺寸 23 | uart = UART(2, baudrate=115200, rx=13,tx=12,timeout=10) 24 | # 注意 buffer_size暂时还不支持 25 | # uart = UART(2, baudrate=115200, bits=8, parity=0, rx=13,tx=12,buffer_size=4096，timeout=10) 26 | 27 | while True: 28 | if uart.any(): 29 | # 如果有数据的话， 就读入一行 30 | info_byte = uart.readline() 31 | print(info_byte) 32 | # info_str = info_byte.decode('uft8') 33 | # print(info_str) 34 | 35 | # Unicode Error 36 | # info_str = info_byte.decode('ascii') 37 | 38 | # not Implement 没有实现这个功能 39 | # info_str = str(info_byte,encoding="ascii") 40 | 41 | # print(info_byte.decode(encoding="ascii")) 42 | # 时间间隔1s 43 | utime.sleep_ms(100) -------------------------------------------------------------------------------- /11_UART串口通信/src/字节Byte_PC发送ESP32接收/byte_publisher_pc_pyserial.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | ''' 3 | PC上使用PySerial发送字节数据 4 | 5 | 运行此程序的时候，需要修改设备的权限， 6 | 7 | sudo chmod 777 /dev/ttyUSB1 8 | ''' 9 | import serial 10 | import time 11 | # 串口号 默认为 /dev/ttyUSB0 12 | ser_dev = '/dev/ttyUSB1' 13 | 14 | ser = serial.Serial(ser_dev,115200, timeout=1) 15 | 16 | count = 1 17 | MAX_NUM = 10 18 | while True: 19 | 20 | info_str = 'INFO-%d\n'%(count) 21 | print(info_str) 22 | # 以字节的方式发出 编码方式，默认为UTF8 --ERROR 23 | # info_byte = bytes(info_str, encoding='utf8') 24 | 25 | info_byte = b'INFO-%d\n'%(count) 26 | 27 | # print("Byte : {}".format(info_byte)) 28 | ser.write(info_byte) # 通过串口发送BYTE 29 | 30 | count = (count+1)%MAX_NUM 31 | # 停顿一秒 32 | time.sleep(2) -------------------------------------------------------------------------------- /14_WebREPL与MIcroIDE配置教程/WebREPL与MIcroIDE配置教程.md: -------------------------------------------------------------------------------- 1 | # 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-------------------------------------------------------------------------------- 1 | # 使用upip安装包 2 | 3 | 教程搬家至: http://www.1zlab.com/article/micropython-esp32-upip-install-package/ -------------------------------------------------------------------------------- /17_ESP32接入WIFI热点/ESP32接入WIFI热点.md: -------------------------------------------------------------------------------- 1 | # ESP32接入WIFI热点 2 | 3 | 教程搬家至: 4 | 5 | http://www.1zlab.com/article/micropython-esp32-connect-to-wifi/ -------------------------------------------------------------------------------- /17_ESP32接入WIFI热点/image/wifi_active.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/1zlab/1ZLAB_MicroPython_ESP32_Tutorial/317926f13a6b8baf612c2138a0959ace3436f80d/17_ESP32接入WIFI热点/image/wifi_active.png -------------------------------------------------------------------------------- /17_ESP32接入WIFI热点/image/wifi_connect.png: 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/19_MQTT入门之项目实战/src/esp32/subscriber.py: -------------------------------------------------------------------------------- 1 | from umqtt.simple import MQTTClient 2 | import time 3 | 4 | SERVER = '192.168.43.16' 5 | CLIENT_ID = 'PYESPCAR_A0' 6 | TOPIC = b'pyespcar_ctl_msg' 7 | 8 | def mqtt_callback(topic, msg): 9 | print('topic: {}'.format(topic)) 10 | print('msg: {}'.format(msg)) 11 | 12 | 13 | client = MQTTClient(CLIENT_ID, SERVER) 14 | client.set_callback(mqtt_callback) 15 | client.connect() 16 | 17 | client.subscribe(TOPIC) 18 | 19 | 20 | while True: 21 | # 查看是否有数据传入 22 | # 有的话就执行 mqtt_callback 23 | client.check_msg() 24 | time.sleep(1) 25 | -------------------------------------------------------------------------------- /19_MQTT入门之项目实战/src/pc/paho-mqtt-publisher.py: -------------------------------------------------------------------------------- 1 | import paho.mqtt.client as mqtt 2 | import time 3 | 4 | HOST_IP = 'localhost' # Server的IP地址 5 | HOST_PORT = 1883 # mosquitto 默认打开端口 6 | TOPIC_ID = 'pyespcar_basic_control' # TOPIC的ID 7 | 8 | # 创建一个客户端 9 | client = mqtt.Client() 10 | # 连接到服务器（本机） 11 | client.connect(HOST_IP, HOST_PORT, 60) 12 | 13 | count = 0 14 | while True: 15 | count += 1 16 | # 待发送的数据 17 | message = 'MOVE FRORWORD,{}'.format(count) 18 | # 通过mqtt协议发布数据给server 19 | client.publish(TOPIC_ID, message) 20 | # 打印日志 21 | print('SEND: {}'.format(message)) 22 | # 延时1s 23 | time.sleep(1) -------------------------------------------------------------------------------- /19_MQTT入门之项目实战/src/pc/paho-mqtt-subsriber.py: -------------------------------------------------------------------------------- 1 | import paho.mqtt.client as mqtt 2 | 3 | def on_message(client, userdata, msg): 4 | '''处理message回调''' 5 | print('topic: {}'.format(msg.topic)) 6 | print('message: {}'.format(str(msg.payload))) 7 | 8 | # 建立一个MQTT的客户端 9 | client = mqtt.Client() 10 | # 绑定数据接收回调函数 11 | client.on_message = on_message 12 | 13 | HOST_IP = 'localhost' # Server的IP地址 14 | HOST_PORT = 1883 # mosquitto 默认打开端口 15 | TOPIC_ID = 'pyespcar_basic_control' # TOPIC的ID 16 | 17 | # 连接MQTT服务器 18 | client.connect(HOST_IP, HOST_PORT, 60) 19 | # 订阅主题 20 | client.subscribe(TOPIC_ID) 21 | 22 | # 阻塞式， 循环往复，一直处理网络数据，断开重连 23 | client.loop_forever() -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # MicroPython-ESP32从入门到差不多 2 | 3 | 4 | 5 | ## 概要 6 | 7 | ![micropython-esp32](http://src.1zlab.com/homepage-micropython-esp32.png) 8 | ## 目录 9 | 10 | * [MicroPython-ESP32固件烧录](./01_MicroPython-ESP32固件烧录/MicroPython-ESP32固件烧录.md) 11 | * [ESP32的REPL使用方法](./02_ESP32的REPL使用方法/ESP32的REPL使用方法.md) 12 | * [ESP32接入WIFI热点](./17_ESP32接入WIFI热点/ESP32接入WIFI热点.md) 13 | * [使用upip安装包](./16_使用upip安装包/使用upip安装包.md) 14 | * [WebREPL与MIcroIDE配置教程](./14_WebREPL与MIcroIDE配置教程/WebREPL与MIcroIDE配置教程.md) 15 | * [GPIO输出控制小灯亮灭](./03_GPIO输出与控制LED亮灭/GPIO输出控制小灯亮灭.md) 16 | * [延时函数与LED闪烁](./04_延时函数与LED闪烁/延时函数与LED闪烁.md) 17 | * [PWM与呼吸灯](./05_PWM与呼吸灯/PWM与呼吸灯.md) 18 | * [GPIO输入与用户按键控制LED开关](./06_GPIO输入与按键控制LED小灯/GPIO输入与用户按键控制LED开关.md) 19 | * [IRQ外部中断与按键控制LED小灯](./07_IRQ外部中断与按键控制LED小灯/IRQ外部中断与按键控制LED小灯.md) 20 | * [ADC采样与电位计控制LED亮度](./08_ADC采样与电位计控制LED亮度/ADC采样与电位计控制LED亮度.md) 21 | * [DAC数字转模拟](./09_DAC数字转模拟/DAC数字转模拟.md) 22 | * [Timer定时器与LED闪烁](./10_Timer定时器与LED闪烁/Timer定时器与LED闪烁.md) 23 | * [UART串口通信](./11_UART串口通信/UART串口通信.md) 24 | 25 | * [MQTT入门之概念解析](./15_MQTT入门之概念解析/MQTT入门之概念解析.md) 26 | * [MQTT入门之项目实战](./19_MQTT入门之项目实战/MQTT入门之项目实战.md) 27 | * [利用AMPY进行文件同步](./18_利用AMPY进行文件同步/利用AMPY进行文件同步.md) 28 | 29 | 30 | ## 项目实战 31 | * [PyESPCar-基于ESP32的WIFI小车](https://github.com/1zlab/1ZLAB_PyEspCar) 32 | 33 | ![pyespcar](http://src.1zlab.com/homepage-pyespcar.png) 34 | * [舵机云台人脸追踪](https://github.com/1zlab/1ZLAB_Face_Track_Robot) 35 | 36 | ![face track](http://src.1zlab.com/homepage-opencv-face-tracking.png) 37 | 38 | ## 推广 39 | **1Z实验室出品** 40 | **1zlab: make things easy** 致力于在机器人+计算机视觉+人工智能的重叠区域, 制作小白友好的教程. 41 | 42 | 43 | ![img](https://upload-images.jianshu.io/upload_images/1199728-589a80ff77f380d8.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1000) 44 | -------------------------------------------------------------------------------- /libs/button.py: -------------------------------------------------------------------------------- 1 | ''' 2 | 按键类Button 3 | ''' 4 | from machine import Pin 5 | import utime 6 | 7 | class Button(object): 8 | ''' 9 | 按键对象 10 | ''' 11 | def __init__(self,button_idx, callback=None): 12 | # 按键字典 13 | # 数据结构： (GPIO编号，按键抬起的电平， 按键按下的电平) 14 | button_list = [(39, False, True)] 15 | 16 | if button_idx < 0 or button_idx >= len(button_list): 17 | print("ERROR: Wrong Button Index") 18 | print("Valid Button Index: {} - {}".format(0, len(button_list)-1)) 19 | return None 20 | 21 | gpio_id, self.BUTTON_RELEASE, self.BUTTON_PRESS, = button_list[button_idx] 22 | # 按键 23 | self.pin = Pin(gpio_id, Pin.IN) 24 | # 回调函数 25 | self.callback = callback 26 | # 设置外部中断 27 | if self.BUTTON_PRESS == True: 28 | self.pin.irq(trigger=Pin.IRQ_RISING, handler=self.irq_handler) 29 | else: 30 | self.pin.irq(trigger=Pin.IRQ_FALLING, handler=self.irq_handler) 31 | 32 | # 标志位 当前是否可以相应按键中断 33 | self.flag = True 34 | 35 | def irq_handler(self, irq_pin): 36 | ''' 37 | 外部中断的相应函数 38 | ''' 39 | # 如果当前正在处理中断，则忽略 40 | if not self.flag: 41 | return 42 | # 添加软件滤波 43 | utime.sleep_ms(50) 44 | if self.pin.value() == self.BUTTON_PRESS: 45 | # 判断当前按键状态是不是按下，如果是，则执行回调函数 46 | if self.flag and self.callback is not None: 47 | self.flag = False 48 | # 执行回调函数 49 | self.callback(self.pin) 50 | self.flag = True 51 | 52 | def deinit(self): 53 | ''' 54 | 销毁资源 55 | ''' 56 | self.pin.irq(trigger=0, handler=None) # 销毁外部中断的资源 57 | 58 | -------------------------------------------------------------------------------- /libs/led.py: -------------------------------------------------------------------------------- 1 | ''' 2 | LED类 3 | v2 添加LED亮度控制 4 | ''' 5 | from machine import Pin, PWM 6 | 7 | class LED: 8 | def __init__(self, led_id): 9 | # LED字典 10 | # 数据结构： (gpio管脚编号， LED灭的电平， LED亮的电平) 11 | led_list = [(2, False, True),(13, True, False)] 12 | 13 | if led_id >= len(led_list) or led_id < 0: 14 | print('ERROR：LED编号无效， 有效ID：{} - {}'.format(0, len(led_list-1))) 15 | return None 16 | 17 | gpio_id, self.LED_OFF, self.LED_ON = led_list[led_id] 18 | self.pin = Pin(gpio_id, Pin.OUT) 19 | self.pwm = PWM(self.pin, freq=1000) 20 | 21 | def on(self): 22 | ''' 23 | 打开LED 24 | ''' 25 | self.pin.value(self.LED_ON) 26 | 27 | def off(self): 28 | ''' 29 | 关闭LED 30 | ''' 31 | self.pin.value(self.LED_OFF) 32 | 33 | def toggle(self): 34 | ''' 35 | 切换LED的状态 36 | OFF -> ON 37 | ON -> OFF 38 | ''' 39 | self.pin.value(not self.pin.value()) 40 | 41 | def intensity(self, value): 42 | ''' 43 | 设置LED的亮度 44 | ''' 45 | if self.LED_ON == True: 46 | self.pwm.duty(value) 47 | else: 48 | self.pwm.duty(1023 - value) 49 | 50 | def deinit(self): 51 | ''' 52 | 销毁资源 53 | ''' 54 | self.pwm.deinit() --------------------------------------------------------------------------------