CiscoTheProot/ESP/mqtt_single_multifunction button/mqtt_single_multifunction button.ino

#include <WiFi.h>
#include <PubSubClient.h>
#include "Button2.h"

const int mainTriggerPin = 25;  // GPIO pins to check for shorting and wake-up

Button2 mainTriggerButton;

const char* ssid = "ProotAP";
const char* password = "prootproot!";
const char* mqttServer = "192.168.10.1";
const int mqttPort = 1883;
const char* mqttTopic = "test";


WiFiClient wifiClient;
PubSubClient mqttClient(wifiClient);

TaskHandle_t mqttTaskHandle = NULL;



void setupWiFi() {
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void callback(char* topic, byte* payload, unsigned int length) {
  // This function is called when a message is received from the MQTT server
  // Add your desired code here to handle the received message
}

void reconnectMQTT() {
  while (!mqttClient.connected()) {
    Serial.println("Connecting to MQTT server...");
    if (mqttClient.connect("ESP32Client")) {
      Serial.println("Connected to MQTT server");
      mqttClient.subscribe(mqttTopic);
    } else {
      Serial.print("MQTT connection failed, rc=");
      Serial.print(mqttClient.state());
      Serial.println(" Retrying in 5 seconds...");
      delay(5000);
    }
  }
}


void setup() {
  Serial.begin(115200);
  delay(50);

  setupWiFi();
  mqttClient.setServer(mqttServer, mqttPort);
  mqttClient.setCallback(callback);

  
  mainTriggerButton.begin(mainTriggerPin);
  mainTriggerButton.setDebounceTime(2);
  mainTriggerButton.setLongClickTime(250);
  mainTriggerButton.setClickHandler(mainTriggerHandler);
  mainTriggerButton.setLongClickHandler(mainTriggerHandler);       // this will only be called upon release
  // mainTriggerButton.setLongClickDetectedHandler(mainTriggerHandler);  // this will only be called upon detection
  mainTriggerButton.setDoubleClickHandler(mainTriggerHandler);
  mainTriggerButton.setTripleClickHandler(mainTriggerHandler);


  //xTaskCreatePinnedToCore(
  //    mqttTask,        // Task function
  //    "mqttTask",      // Task name
  //    4096,            // Stack size (bytes)
  //    NULL,            // Task parameter
  //    1,               // Task priority
  //    &mqttTaskHandle, // Task handle
  //    1                // Task core (0 or 1)
  //);
}

int lastInput = 0;
String message = "";

void mainTriggerHandler(Button2& btn) {
  switch (btn.getType()) {
    case single_click:
      Serial.print("single ");
      if (lastInput < 5){
        lastInput = lastInput + 1;
      } else {
        lastInput = 1;
      }
      message = "Butn_000" + String(lastInput) + "_0001";
      mqttClient.publish(mqttTopic, message.c_str());
      break;
    case double_click:
      Serial.print("double ");
      message = "Butn_0003_0001";
      lastInput = 3;
      mqttClient.publish(mqttTopic, message.c_str());
      break;
    case triple_click:
      Serial.print("triple ");
      message = "Butn_0002_0001";
      lastInput = 2;
      mqttClient.publish(mqttTopic, message.c_str());
      break;
    case long_click:
      Serial.print("long");
      message = "Butn_0004_0001";
      lastInput = 4;
      mqttClient.publish(mqttTopic, message.c_str());
      break;
  }
  Serial.print("click");
  Serial.print(" (");
  Serial.print(btn.getNumberOfClicks());    
  Serial.println(")");
  Serial.println("sent: " + message);
}

void loop() {
  if (!mqttClient.connected()) {
    reconnectMQTT();
  }

  mainTriggerButton.loop();

  mqttClient.loop();
}