ESP32 NodeMCU 32S Telegram控制ESP32

資料來源：

https://randomnerdtutorials.com/telegram-control-esp32-esp8266-nodemcu-outputs/

程式碼：

https://gist.github.com/clive520/50ab58836527b0342fb6ce42253d6983

/*

  Rui Santos

  Complete project details at https://RandomNerdTutorials.com/telegram-control-esp32-esp8266-nodemcu-outputs/

  

  Project created using Brian Lough's Universal Telegram Bot Library: https://github.com/witnessmenow/Universal-Arduino-Telegram-Bot

  Example based on the Universal Arduino Telegram Bot Library: https://github.com/witnessmenow/Universal-Arduino-Telegram-Bot/blob/master/examples/ESP8266/FlashLED/FlashLED.ino

*/

#ifdef ESP32

  #include <WiFi.h>

#else

  #include <ESP8266WiFi.h>

#endif

#include <WiFiClientSecure.h>

#include <UniversalTelegramBot.h>   // Universal Telegram Bot Library written by Brian Lough: https://github.com/witnessmenow/Universal-Arduino-Telegram-Bot

#include <ArduinoJson.h>

// Replace with your network credentials

const char* ssid = "book";

const char* password = "12345678";

// Initialize Telegram BOT

#define BOTtoken "1200000018:AAG5zyCsy-000000_iZFi7dde-6X8fk-D-o"  // your Bot Token (Get from Botfather)將您從Botfather獲得的Telegram Bot Token 插入到 BOTToken  變量。

// Use @myidbot to find out the chat ID of an individual or a group

// Also note that you need to click "start" on a bot before it can

// message you

#define CHAT_ID "100000007"

WiFiClientSecure client;  //使用創建一個新的WiFi客戶端

UniversalTelegramBot bot(BOTtoken, client);  //創建一個 機器人 使用之前定義的Token和客戶端

// Checks for new messages every 1 second.

int botRequestDelay = 1000;

unsigned long lastTimeBotRan;    //每1秒檢查一次新的電報消息

const int ledPin = 2;

bool ledState = LOW;

// Handle what happens when you receive new messages 

//利用handleNewMessages（） 函數處理收到的訊息。

void handleNewMessages(int numNewMessages) {

  Serial.println("handleNewMessages");

  Serial.println(String(numNewMessages));

//檢查是否為可用訊息

  for (int i=0; i<numNewMessages; i++) {

    // Chat id of the requester

    String chat_id = String(bot.messages[i].chat_id);

    //檢查聊天室ID是否正確。

    //如果 聊天室ID與您的聊天室ID不同，則表示某人（不是您）已向您的漫遊器發送了一條消息。如果是這種情況，請忽略該消息，然後等待下一條消息。

    if (chat_id != CHAT_ID){

      bot.sendMessage(chat_id, "Unauthorized user", "");

      continue;

    }

    

    // Print the received message

    String text = bot.messages[i].text;   //發送的訊息

    Serial.println(text);

    String from_name = bot.messages[i].from_name;  //發送者的名字

 

 //如果收到/start消息，我們將發送有效命令來控制ESP32。如果您碰巧忘記了控制主板的命令，這將很有用。

    if (text == "/start") {

      String welcome = "Welcome, " + from_name + ".\n";

      welcome += "Use the following commands to control your outputs.\n\n";

      welcome += "/led_on to turn GPIO ON \n";

      welcome += "/led_off to turn GPIO OFF \n";

      welcome += "/state to request current GPIO state \n";

      bot.sendMessage(chat_id, welcome, "");  //發送消息回Telegram

    }

    if (text == "/led_on") {

      bot.sendMessage(chat_id, "LED state set to ON", "");

      ledState = HIGH;

      digitalWrite(ledPin, ledState);

    }

    

    if (text == "/led_off") {

      bot.sendMessage(chat_id, "LED state set to OFF", "");

      ledState = LOW;

      digitalWrite(ledPin, ledState);

    }

    

    if (text == "/state") {

      if (digitalRead(ledPin)){

        bot.sendMessage(chat_id, "LED is ON", "");

      }

      else{

        bot.sendMessage(chat_id, "LED is OFF", "");

      }

    }

  }

}

void setup() {

  Serial.begin(115200);

//如果您使用的是ESP8266，則需要使用以下代碼行：

  #ifdef ESP8266

    client.setInsecure();

  #endif

//將LED設置為輸出，並在ESP首次啟動時將其設置為LOW

  pinMode(ledPin, OUTPUT);

  digitalWrite(ledPin, ledState);

  

  // Connect to Wi-Fi

//初始化Wi-Fi，並使用前面定義的SSID和密碼將ESP連接到本地網絡

  WiFi.mode(WIFI_STA);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {

    delay(1000);

    Serial.println("Connecting to WiFi..");

  }

  // Print ESP32 Local IP Address

  Serial.println(WiFi.localIP());

}

void loop() {

  if (millis() > lastTimeBotRan + botRequestDelay)  {

    int numNewMessages = bot.getUpdates(bot.last_message_received + 1);

    while(numNewMessages) {

      Serial.println("got response");

      handleNewMessages(numNewMessages);

      numNewMessages = bot.getUpdates(bot.last_message_received + 1);

    }

    lastTimeBotRan = millis();

  }

}