├── .gitignore ├── LICENSE ├── README.md ├── assets ├── diagram00.jpg ├── esp32_potp_intro.jpg └── wemos_oled_00.jpg ├── extra_script.py ├── lib └── readme.txt ├── platformio.ini ├── secrets.load.sample └── src ├── Main.cpp ├── WiFiManager.cpp └── WiFiManager.h /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled Object files 2 | *.slo 3 | *.lo 4 | *.o 5 | *.obj 6 | 7 | # Precompiled Headers 8 | *.gch 9 | *.pch 10 | 11 | # Compiled Dynamic libraries 12 | *.so 13 | *.dylib 14 | *.dll 15 | 16 | # Fortran module files 17 | *.mod 18 | *.smod 19 | 20 | # Compiled Static libraries 21 | *.lai 22 | *.la 23 | *.a 24 | *.lib 25 | 26 | # Executables 27 | *.exe 28 | *.out 29 | *.app 30 | 31 | # Vim backups 32 | *.swp 33 | 34 | # PlatformIO work files 35 | .pioenvs 36 | .piolibdeps 37 | 38 | # Project 39 | secrets.load 40 | secrets.load.* 41 | 42 | # IDE 43 | .travis.yml 44 | extensions.json 45 | settings.json 46 | *tags* 47 | .clang_complete 48 | .gcc-flags.json 49 | .vscode/.browse.c_cpp.db* 50 | .vscode/c_cpp_properties.json 51 | .vscode/launch.json 52 | -------------------------------------------------------------------------------- /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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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. 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 | {project} Copyright (C) {year} {fullname} 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 | # ESP32 POTP (Portable Google Authenticator) 2 | 3 | **[status: in developing]** 4 | 5 | Portable EAP Protected One-Time Password (EAP-POTP) or GoogleAuthenticator hardware for provides two-factor user authentication. This is a 6 | PlatformIO DIY project for WeMOS like board with ESP32 and OLED SSD1306 display, see materials and instructions below. 7 | 8 | 9 | ## Development Status: 10 | 11 | - [X] WifiManager 12 | - [X] Wifi OTA Handler 13 | - [X] DeepSleep mode (testing) 14 | - [X] GUI overlay tests 15 | - [X] RFC 4793 implementation 16 | - [ ] Sync RTC via Bluetooth 17 | - [ ] GUI Page viewer for OTP codes 18 | - [ ] Android GoogleAuth POTP sync 19 | - [ ] Vulnerability security test 20 | - [ ] 3D print case? 21 | - [ ] Resina case? 22 | - [ ] Latex case? 23 | 24 | ## DIY Building 25 | 26 | ## Dependencies 27 | 28 | Please install before, [PlatformIO](http://platformio.org/) open source ecosystem for IoT development. 29 | 30 | ## Compile and firmware upload 31 | 32 | #### Setup WiFi 33 | 34 | Setup your WiFi on `secrets.load` and run: 35 | 36 | ``` bash 37 | git clone https://github.com/hpsaturn/esp32_wemos_oled.git 38 | cd esp32_wemos_oled 39 | cp secrets.load.sample secrets.load 40 | chmod 755 secrets.load 41 | ``` 42 | 43 | #### Compile firmware and deploy 44 | 45 | ``` javascript 46 | platformio run --target upload 47 | ``` 48 | 49 | #### OTA Updates (Optional) 50 | 51 | For faster firmware updates via air (OTA) 52 | 53 | ``` javascript 54 | platformio run --target upload --upload-port 192.168.1.107 55 | ``` 56 | 57 | ##### Library installation Troubleshooting 58 | 59 | if you have the next error: 60 | 61 | ```C 62 | src/Main.cpp:27:18: fatal error: sha1.h: No such file or directory 63 | compilation terminated. 64 | ``` 65 | it is because the TOTP Arduino library is broken, please clean and remove hidden directories with `rm -rf .pioenvs .piolibdeps` and run `git pull origin master` again. 66 | 67 | ## Basic Connection 68 | 69 | ![alt text][diagram_pinout] 70 | 71 | [diagram_pinout]:https://github.com/hpsaturn/esp32_wemos_oled/blob/master/assets/diagram00.jpg "General connection for WeMOS OLED" 72 | 73 | ## Board WeMOS like OLED: 74 | 75 | ![alt text][wemos_oled] 76 | 77 | [wemos_oled]:https://github.com/hpsaturn/esp32_wemos_oled/blob/master/assets/wemos_oled_00.jpg "WeMOS OLED like" 78 | 79 | 80 | -------------------------------------------------------------------------------- /assets/diagram00.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hpsaturn/esp32_potp/1ba3b41e263b6b23023a452129403656a263c15a/assets/diagram00.jpg -------------------------------------------------------------------------------- /assets/esp32_potp_intro.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hpsaturn/esp32_potp/1ba3b41e263b6b23023a452129403656a263c15a/assets/esp32_potp_intro.jpg -------------------------------------------------------------------------------- /assets/wemos_oled_00.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hpsaturn/esp32_potp/1ba3b41e263b6b23023a452129403656a263c15a/assets/wemos_oled_00.jpg -------------------------------------------------------------------------------- /extra_script.py: -------------------------------------------------------------------------------- 1 | Import("env") 2 | import subprocess 3 | import json 4 | 5 | flags = env.ParseFlags(env['BUILD_FLAGS']) 6 | src_flags = env.ParseFlags(env['SRC_BUILD_FLAGS']) 7 | defines = {k: v for (k, v) in flags.get("CPPDEFINES")} 8 | print ('==================================') 9 | gitrevcount = subprocess.Popen(['git', 'rev-list', '--all', '--count', 'HEAD'], stdout=subprocess.PIPE).stdout.readline() 10 | print ('==> GIT REVISION: ' + gitrevcount) 11 | print ('==> CPPDEFINES: ' + json.dumps(defines)) 12 | # print ('==> WIFI_SSID: ' + src_flags.get("WIFI_SSID")) 13 | print ('=================================') 14 | env.Replace(SRC_REV="rev%s" % gitrevcount) 15 | # env.Replace(PROGNAME="firmware_%s" % defines.get("VERSION")) 16 | -------------------------------------------------------------------------------- /lib/readme.txt: -------------------------------------------------------------------------------- 1 | 2 | This directory is intended for project specific (private) libraries. 3 | PlatformIO will compile them to static libraries and link them to executable files. 4 | 5 | The source code of each library should be placed in separate directories, like 6 | "lib/private_lib/[here are source files]". 7 | 8 | For example, see the structure of the following two libraries `Foo` and `Bar`: 9 | 10 | |--lib 11 | | | 12 | | |--Bar 13 | | | |--docs 14 | | | |--examples 15 | | | |--src 16 | | | |- Bar.c 17 | | | |- Bar.h 18 | | | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html 19 | | | 20 | | |--Foo 21 | | | |- Foo.c 22 | | | |- Foo.h 23 | | | 24 | | |- readme.txt --> THIS FILE 25 | | 26 | |- platformio.ini 27 | |--src 28 | |- main.c 29 | 30 | Then in `src/main.c` you should use: 31 | 32 | #include 33 | #include 34 | 35 | // rest H/C/CPP code 36 | 37 | PlatformIO will find your libraries automatically, configure preprocessor's 38 | include paths and build them. 39 | 40 | More information about PlatformIO Library Dependency Finder 41 | - https://docs.platformio.org/page/librarymanager/ldf.html 42 | -------------------------------------------------------------------------------- /platformio.ini: -------------------------------------------------------------------------------- 1 | ; PlatformIO Project Configuration File 2 | ; 3 | ; Build options: build flags, source filter, extra scripting 4 | ; Upload options: custom port, speed and extra flags 5 | ; Library options: dependencies, extra library storages 6 | ; 7 | ; Please visit documentation for the other options and examples 8 | ; http://docs.platformio.org/page/projectconf.html 9 | ; 10 | 11 | [env:lolin32] 12 | platform = espressif32 13 | framework = arduino 14 | board = lolin32 15 | build_flags = '-fexceptions' 16 | ; Please see "secrets.load.sample" and copy it file to secrets.load 17 | src_build_flags = !echo "-DSRC_REV="$(git rev-list --all --count HEAD && ./secrets.load) 18 | #extra_scripts = pre:extra_script.py 19 | lib_deps = 20 | ;ESP8266_SSD1306 21 | 2978 22 | https://github.com/mikeazo/TOTP-Arduino 23 | 24 | ;targets = upload 25 | ; any port that starts with /dev/ttyUSB 26 | ;upload_port = /dev/ttyUSB* 27 | 28 | ; ip for OTA 29 | ;upload_port = 192.168.3.122 30 | -------------------------------------------------------------------------------- /secrets.load.sample: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | ssid='-DWIFI_SSID="YOUR_WIFI_SSID"' 3 | passw='-DWIFI_PASS="YOUR_WIFI_PASS"' 4 | 5 | # Change vars and run in your platformio console: 6 | # 7 | # > cp secrets.load.sample secrets.load 8 | # > chmod 755 secrets.load 9 | # > export PLATFORMIO_BUILD_FLAGS=`bash ./secrets.load` 10 | # > pio run 11 | 12 | echo "'${ssid}' '${passw}'" 13 | 14 | -------------------------------------------------------------------------------- /src/Main.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * [status: in developing] 3 | * Portable EAP Protected One-Time Password (EAP-POTP) or GoogleAuthenticator 4 | * hardware for provides two-factor user authentication. 5 | 6 | * This is a PlatformIO DIY project for WeMOS like board with ESP32 and 7 | * OLED SSD1306 display, see materials and instructions on: 8 | * https://github.com/hpsaturn/esp32_potp 9 | * 10 | * Before, please setup your WiFi on secrets.load.sample and run: 11 | * cp secrets.load.sample secrets.load 12 | * chmod 755 secrets.load 13 | * export PLATFORMIO_BUILD_FLAGS=`bash ./secrets.load` 14 | * 15 | * Build and run: 16 | * platformio run --target upload 17 | * platformio run --target upload --upload-port 192.168.x.x 18 | */ 19 | 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | #include "WiFiManager.h" 26 | #include "esp_sleep.h" 27 | #include "sha1.h" 28 | #include "TOTP.h" 29 | #include "lwip/err.h" 30 | #include "apps/sntp/sntp.h" 31 | 32 | // firmware version from git rev-list command 33 | String VERSION_CODE = "rev"; 34 | #ifdef SRC_REV 35 | int VCODE = SRC_REV; 36 | #else 37 | int VCODE = 0; 38 | #endif 39 | // OTP setup ==> test code (from GoogleAuth) 40 | uint8_t hmacKey[] = {0xea,0x41,0x68,0x5c,0x9b,0x10,0x13,0x5d,0x8c,0xa0,0x35,0x05,0x38,0xcb,0xa9,0x96,0x75,0xa0,0x5a,0xaf}; 41 | TOTP totp = TOTP(hmacKey, 20); 42 | char code[7]; 43 | // Initialize the OLED display using Wire library 44 | SSD1306Wire display(0x3c, 5, 4); 45 | WiFiManager wifi(&display); 46 | // Power vars 47 | unsigned long poweroff = 0; 48 | bool isPowerOff = false; 49 | // Touche keys setup 50 | #define THRESHOLD 80 51 | bool touch2detected = false; 52 | bool touch3detected = false; 53 | int touch2count = 0; 54 | int touch3count = 0; 55 | void gotTouch2(){ touch2detected = true; } 56 | void gotTouch3(){ touch3detected = true; } 57 | 58 | /************************** POWER METHODS **********************************/ 59 | 60 | void reboot(){ 61 | Serial.println("-->Process Reboot.."); 62 | ESP.restart(); 63 | } 64 | 65 | void suspend(){ 66 | Serial.println("-->Process Suspend.."); 67 | isPowerOff=true; 68 | display.clear(); 69 | display.setFont(ArialMT_Plain_10); 70 | display.setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 71 | display.drawString(display.getWidth()/2, display.getHeight()/2, "Suspending.."); 72 | display.display(); 73 | delay(500); 74 | display.clear(); 75 | display.display(); 76 | wifi.disableWifi(); 77 | esp_sleep_enable_touchpad_wakeup(); 78 | esp_deep_sleep_start(); 79 | } 80 | 81 | /************************** NTP HANDLING **********************************/ 82 | 83 | static void initSNTP(void) { 84 | Serial.println("-->Initializing SNTP"); 85 | configTime(0,0,"pool.ntp.org"); 86 | } 87 | 88 | static void getTimeFromSNTP(void) { 89 | initSNTP(); 90 | // wait for time to be set 91 | time_t now = 0; 92 | struct tm timeinfo = {0}; 93 | int retry = 0; 94 | const int retry_count = 20; 95 | Serial.print("-->Waiting for system time to be set."); 96 | while (timeinfo.tm_year < (2016 - 1900) && ++retry < retry_count) { 97 | Serial.print("."); 98 | delay(10); 99 | time(&now); 100 | localtime_r(&now, &timeinfo); 101 | } 102 | Serial.println("ready."); 103 | } 104 | 105 | /************************** DISPLAY HANDLING **********************************/ 106 | 107 | void showWelcome(){ 108 | isPowerOff=false; 109 | display.clear(); 110 | display.setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 111 | display.setFont(ArialMT_Plain_16); 112 | display.drawString(display.getWidth()/2, display.getHeight()/2, "ESP32 POTP"); 113 | display.display(); 114 | Serial.println("-->Welcome screen ready"); 115 | delay(500); // TODO: remove if bluetooth will be scan 116 | } 117 | 118 | void showTime(char timebuf[]) { 119 | display.setFont(ArialMT_Plain_10); 120 | display.setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 121 | display.drawString(display.getWidth() / 2, ((display.getHeight()/ 2)-24),timebuf); 122 | } 123 | 124 | void showRevisionCode(){ 125 | display.setFont(ArialMT_Plain_10); 126 | display.setTextAlignment(TEXT_ALIGN_RIGHT); 127 | display.drawString(display.getWidth()-5,display.getHeight()-10, VERSION_CODE+VCODE); 128 | } 129 | 130 | void showOTPCode(String OTPcode){ 131 | display.setFont(ArialMT_Plain_24); 132 | display.drawString(display.getWidth() / 2, (display.getHeight()/ 2)+5, OTPcode); 133 | } 134 | 135 | void calcOTPCodeAndPrintScreen() { 136 | time_t now; 137 | struct tm timeinfo; 138 | char timebuf[64]; 139 | char *newCode = totp.getCode(time(&now)); 140 | localtime_r(&now, &timeinfo); 141 | strftime(timebuf, sizeof(timebuf),"%Y %a, %d %b %H:%M:%S", &timeinfo); 142 | if (strcmp(code, newCode) != 0) { 143 | strcpy(code, newCode); 144 | if (timeinfo.tm_year < (2016 - 1900)) { 145 | Serial.println("Time is not set yet! PRESS RIGHT BUTTON! (connect to NTP)"); 146 | } else { 147 | Serial.print(timebuf); 148 | Serial.print(" ==> OTP code: ["); 149 | Serial.print(code); 150 | Serial.println("]"); 151 | } 152 | } 153 | display.clear(); 154 | // show current time (clock) 155 | showTime(timebuf); 156 | // show OTP code 157 | showOTPCode(code); 158 | // show revision code 159 | showRevisionCode(); 160 | // print display 161 | display.display(); 162 | } 163 | 164 | /****************************************************************************** 165 | ***************************** S E T U P *********************************** 166 | ******************************************************************************/ 167 | 168 | void setup() { 169 | Serial.begin(115200); 170 | Serial.println(); 171 | Serial.println("== ESP32 Booting =="); 172 | // display setup 173 | display.init(); 174 | display.flipScreenVertically(); 175 | display.setContrast(128); 176 | display.clear(); 177 | Serial.println("-->OLED ready"); 178 | wifi.disableWifi(); 179 | // Init touch callbacks 180 | touchAttachInterrupt(T2, gotTouch2, THRESHOLD); 181 | touchAttachInterrupt(T3, gotTouch3, THRESHOLD); 182 | Serial.println("-->Buttons ready"); 183 | // Set timezone for America/Bogota 184 | setenv("TZ", "<-05>5", 1); 185 | tzset(); 186 | // Splash Window 187 | showWelcome(); 188 | Serial.println("== Setup ready =="); 189 | } 190 | 191 | /****************************************************************************** 192 | ***************************** L O O P *********************************** 193 | ******************************************************************************/ 194 | 195 | void loop() { 196 | if (wifi.isWifiEnable) // OTA mode 197 | ArduinoOTA.handle(); 198 | else // OTPcode mode 199 | calcOTPCodeAndPrintScreen(); 200 | 201 | // touch LEFT capture 202 | if (touch2detected) { 203 | touch2detected = false; 204 | if (touch2count++ > 10) { 205 | Serial.println("Touch 2 (GPIO2) reached"); 206 | touch2count = 0; 207 | if (isPowerOff) 208 | showWelcome(); 209 | else 210 | suspend(); 211 | } 212 | } 213 | // touch RIGTH capture 214 | if (touch3detected) { 215 | touch3detected = false; 216 | if (touch3count++ > 5) { 217 | Serial.println("Touch 3 (GPIO15) reached"); 218 | touch3count = 0; 219 | if (wifi.isWifiEnable) wifi.disableWifi(); 220 | else if (wifi.init()) getTimeFromSNTP(); 221 | delay(200); 222 | } 223 | } 224 | } 225 | -------------------------------------------------------------------------------- /src/WiFiManager.cpp: -------------------------------------------------------------------------------- 1 | #include "Arduino.h" 2 | #include "WiFiManager.h" 3 | #include "esp_wifi.h" 4 | #include 5 | #include 6 | #include 7 | #include 8 | 9 | WiFiManager::WiFiManager(OLEDDisplay *d){ 10 | this->display = d; 11 | } 12 | 13 | void WiFiManager::enableOTA(){ 14 | ArduinoOTA.begin(); 15 | ArduinoOTA.onStart([&]() { 16 | Serial.println("ArduinoOTA starting.."); 17 | display->clear(); 18 | display->setFont(ArialMT_Plain_10); 19 | display->setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 20 | display->drawString(display->getWidth()/2, display->getHeight()/2 - 10, "OTA Update"); 21 | display->display(); 22 | }); 23 | 24 | ArduinoOTA.onProgress([&](unsigned int progress, unsigned int total) { 25 | display->drawProgressBar(4, 32, 120, 6, progress / (total / 100) ); 26 | display->display(); 27 | }); 28 | 29 | ArduinoOTA.onError([&](ota_error_t err) { 30 | Serial.print("OTA error: "); 31 | Serial.println(err); 32 | ESP.restart(); 33 | }); 34 | 35 | ArduinoOTA.onEnd([&]() { 36 | Serial.println("OTA complete."); 37 | display->clear(); 38 | display->setFont(ArialMT_Plain_10); 39 | display->setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 40 | display->drawString(display->getWidth()/2, display->getHeight()/2, "Restart"); 41 | display->display(); 42 | }); 43 | 44 | isEnableOTA=true; 45 | 46 | } 47 | 48 | bool WiFiManager::init(){ 49 | 50 | display->clear(); 51 | display->setFont(ArialMT_Plain_10); 52 | display->setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 53 | String msg = "WiFi Setup\nConnecting to "; 54 | display->drawString(display->getWidth()/2, display->getHeight()/2 - 10,msg+ssid); 55 | display->display(); 56 | Serial.print("-->WiFi connecting to "); 57 | Serial.println(ssid); 58 | 59 | WiFi.begin (ssid, password); 60 | WiFi.mode(WIFI_STA); 61 | WiFi.reconnect(); 62 | delay(100); 63 | 64 | while (WiFi.waitForConnectResult() != WL_CONNECTED && reconnectWiFi ready"); 75 | WiFi.setHostname("esp32potp"); 76 | display->clear(); 77 | 78 | if(!isEnableOTA)enableOTA(); 79 | 80 | // Align text vertical/horizontal center 81 | display->setTextAlignment(TEXT_ALIGN_CENTER_BOTH); 82 | display->setFont(ArialMT_Plain_10); 83 | display->drawString(display->getWidth()/2, display->getHeight()/2, "Ready for OTA:\n" + WiFi.localIP().toString()); 84 | display->display(); 85 | Serial.println("-->OTA ready"); 86 | 87 | isWifiEnable=true; 88 | } 89 | else { 90 | Serial.println("WiFi setup failed!"); 91 | isWifiEnable = false; 92 | display->clear(); 93 | display->drawString(display->getWidth()/2, display->getHeight()/2 - 10, "Wifi Setup Failed!\nPress B to reboot"); 94 | display->display(); 95 | WiFi.disconnect(true); 96 | WiFi.mode(WIFI_OFF); 97 | delay(1000); 98 | } 99 | 100 | return isWifiEnable; 101 | 102 | } 103 | 104 | void WiFiManager::disableWifi(){ 105 | isWifiEnable = false; 106 | Serial.println("-->Disabling WiFi.."); 107 | WiFi.disconnect(true); 108 | WiFi.mode(WIFI_OFF); 109 | WiFi.mode(WIFI_MODE_NULL); 110 | // ESP.restart(); 111 | } 112 | -------------------------------------------------------------------------------- /src/WiFiManager.h: -------------------------------------------------------------------------------- 1 | #ifndef WifiManager_h 2 | #define WifiManager_h 3 | 4 | #include "Arduino.h" 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include "OLEDDisplay.h" 10 | 11 | #define MAX_RECONNECT 5 12 | 13 | class WiFiManager 14 | { 15 | 16 | public: 17 | 18 | WiFiManager(OLEDDisplay *d); 19 | 20 | OLEDDisplay *display; 21 | 22 | bool init(); 23 | 24 | void disableWifi(); 25 | 26 | void enableOTA(); 27 | 28 | bool isWifiEnable = false; 29 | 30 | private: 31 | 32 | // WiFi setup, define secrets on global enveiroment 33 | const char *ssid = WIFI_SSID; 34 | 35 | const char *password = WIFI_PASS; 36 | 37 | bool isEnableOTA = false; 38 | 39 | int reconnect = 0; 40 | 41 | }; 42 | 43 | #endif 44 | --------------------------------------------------------------------------------