MQTT 3 Door switch sketch (Single relay to be added)

  • Hey Guys,

    After searching a ton and doing a heap of reading, I couldn't find a multiple door switch sketch that works on 2.xx at all.

    I have this sketch working on the bench on a nodeMCU, Works best when 10k external pull ups are used as well.

    Going to add a relay to the sketch as well next now I have the 3 door switch's working.

    So I'm just sharing this so others can see hows its done.

    I'm a copy paste programmer so please dont shoot any mistakes or lack of knowledge, I'm sure there is a better way of doing it like I have seen in the relay sketch with some ++ sort of thing I have yet to work out.

    This is designed to be used with Home Assistant, It will monitor a garage door with open and closed reed switches, The internal door into the house, and the relay will trigger the garage internal light. But you could use it with whatever you want.

     * The MySensors Arduino library handles the wireless radio link and protocol
     * between your home built sensors/actuators and HA controller of choice.
     * The sensors forms a self healing radio network with optional repeaters. Each
     * repeater and gateway builds a routing tables in EEPROM which keeps track of the
     * network topology allowing messages to be routed to nodes.
     * Created by Henrik Ekblad <>
     * Copyright (C) 2013-2015 Sensnology AB
     * Full contributor list:
     * Documentation:
     * Support Forum:
     * This program is free software; you can redistribute it and/or
     * modify it under the terms of the GNU General Public License
     * version 2 as published by the Free Software Foundation.
     * Version 1.0 - Henrik Ekblad
     * The ESP8266 MQTT gateway sends radio network (or locally attached sensors) data to your MQTT broker.
     * The node also listens to MY_MQTT_TOPIC_PREFIX and sends out those messages to the radio network
     * LED purposes:
     * - To use the feature, uncomment any of the MY_DEFAULT_xx_LED_PINs in your sketch
     * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
     * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
     * - ERR (red) - fast blink on error during transmission error or recieve crc error
     * See for wiring instructions.
     * nRF24L01+  ESP8266
     * VCC        VCC
     * CE         GPIO4
     * CSN/CS     GPIO15
     * SCK        GPIO14
     * MISO       GPIO12
     * MOSI       GPIO13
     * Not all ESP8266 modules have all pins available on their external interface.
     * This code has been tested on an ESP-12 module.
     * The ESP8266 requires a certain pin configuration to download code, and another one to run code:
     * - Connect REST (reset) via 10K pullup resistor to VCC, and via switch to GND ('reset switch')
     * - Connect GPIO15 via 10K pulldown resistor to GND
     * - Connect CH_PD via 10K resistor to VCC
     * - Connect GPIO2 via 10K resistor to VCC
     * - Connect GPIO0 via 10K resistor to VCC, and via switch to GND ('bootload switch')
      * Inclusion mode button:
     * - Connect GPIO5 via switch to GND ('inclusion switch')
     * Hardware SHA204 signing is currently not supported!
     * Make sure to fill in your ssid and WiFi password below for ssid & pass.
    // Enable debug prints to serial monitor
    #define MY_DEBUG
    // Use a bit lower baudrate for serial prints on ESP8266 than default in MyConfig.h
    #define MY_BAUD_RATE 9600
    // Enables and select radio type (if attached)
    //#define MY_RADIO_NRF24
    //#define MY_RADIO_RFM69
    #define MY_GATEWAY_ESP8266
    // Set this node's subscribe and publish topic prefix
    // Set MQTT client id
    #define MY_MQTT_CLIENT_ID "ESP2"
    // Enable these if your MQTT broker requires usenrame/password
    #define MY_MQTT_USER "******"
    #define MY_MQTT_PASSWORD "******"
    // Set WIFI SSID and password
    #define MY_ESP8266_SSID "******"
    #define MY_ESP8266_PASSWORD "******"
    // Set the hostname for the WiFi Client. This is the hostname
    // it will pass to the DHCP server if not static.
    #define MY_ESP8266_HOSTNAME "ESP2"
    // Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
    //#define MY_IP_ADDRESS 192,168,178,87
    // If using static ip you need to define Gateway and Subnet address as well
    //#define MY_IP_GATEWAY_ADDRESS 192,168,178,1
    //#define MY_IP_SUBNET_ADDRESS 255,255,255,0
    // MQTT broker ip address.
    #define MY_CONTROLLER_IP_ADDRESS ******
    // The MQTT broker port to to open
    #define MY_PORT 1883
    #include <ESP8266WiFi.h>
    #include <MySensors.h>
    #include <SPI.h>
    #include <Bounce2.h>
    // Setting multiple child ID's for each switch and it's GPIO pin
    //Switch 1
    #define CHILD_ID_1 1
    #define BUTTON_PIN_1  4  // Arduino Digital I/O pin for button/reed switch
    //Switch 2
    #define CHILD_ID_2 2
    #define BUTTON_PIN_2  5  // Arduino Digital I/O pin for button/reed switch
    //Switch 3
    #define CHILD_ID_3 3
    #define BUTTON_PIN_3  10  // Arduino Digital I/O pin for button/reed switch
    //switch 1
    Bounce debouncer_1 = Bounce(); 
    int oldValue_1=-1;
    //switch 2
    Bounce debouncer_2 = Bounce(); 
    int oldValue_2=-1;
    //switch 3
    Bounce debouncer_3 = Bounce(); 
    int oldValue_3=-1;
    // Setting mysensor message string (ChildID, V type)
    // Change to V_LIGHT if you use S_LIGHT in presentation below
    MyMessage msg1(CHILD_ID_1,V_TRIPPED);
    MyMessage msg2(CHILD_ID_2,V_TRIPPED);
    MyMessage msg3(CHILD_ID_3,V_TRIPPED);
    //Presenting each child ID
    void presentation() {
      // Register binary input sensor to gw (they will be created as child devices)
      // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage. 
      // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
      present(CHILD_ID_1, S_DOOR);
      present(CHILD_ID_2, S_DOOR);
      present(CHILD_ID_3, S_DOOR);   
    //Setting up each GPIO pin as an input and turning on internal pull up resistor
    void setup()
      // Setup the button 1
      // Activate internal pull-up
      // After setting up the button, setup debouncer
        // Setup the button 2
      // Activate internal pull-up
      // After setting up the button, setup debouncer
        // Setup the button 3
      // Activate internal pull-up
      // After setting up the button, setup debouncer
    void loop() 
      // Switch 1
      // Get the update value
      int value_1 =;
      if (value_1 != oldValue_1) {
         // Send in the new value
         send(msg1.set(value_1==HIGH ? 1 : 0));
         oldValue_1 = value_1;
      // Switch 2
      // Get the update value
      int value_2 =;
      if (value_2 != oldValue_2) {
         // Send in the new value
         send(msg2.set(value_2==HIGH ? 1 : 0));
         oldValue_2 = value_2;
      // Switch 3
      // Get the update value
      int value_3 =;
      if (value_3 != oldValue_3) {
         // Send in the new value
         send(msg3.set(value_3==HIGH ? 1 : 0));
         oldValue_3 = value_3;

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