2x Relay, 1x Reed Switch on 1 node for Home Assistant

[Cameron Payne]

Hey!
N00b ahead warning!

I had a lot of trouble trying to get 2 relays and a reed switch working on one node in Home Assistant, but after hours of trying i finally got some code that works

It's very messy and is a big mash of sample code and other projects code but it works.

Would be nice if it would remember the state after a power off but that is way beyond me

If anyone ends up using this and cleans it up feel free to post it back here

Thanks!

/*
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * http://www.mysensors.org/build/relay
 */

#define MY_DEBUG
#define MY_RADIO_NRF24
#define MY_REPEATER_FEATURE
#define MY_NODE_ID 43
#include <SPI.h>
#include <MySensors.h>
#include <Bounce2.h>

#define RELAY_PIN1  3
#define RELAY_PIN2  4
#define BUTTON_PIN1  6 
#define CHILD_ID1 1
#define CHILD_ID2 2
#define CHILD_ID3 3
#define RELAY_ON 1
#define RELAY_OFF 0
 

Bounce debouncer = Bounce();
bool state = false;
bool state2 = false;
bool initialValueSent = false;
int oldValue=-1;

MyMessage msg(CHILD_ID1, V_STATUS);
MyMessage msg2(CHILD_ID2, V_STATUS);
MyMessage msg3(CHILD_ID3,V_TRIPPED);

void setup()
{

  // Make sure relays are off when starting up
  digitalWrite(RELAY_PIN1, RELAY_OFF);
  digitalWrite(RELAY_PIN2, RELAY_OFF);
  pinMode(RELAY_PIN1, OUTPUT);
  pinMode(RELAY_PIN2, OUTPUT);
  pinMode(BUTTON_PIN1,INPUT);
  
  // Activate internal pull-up
  digitalWrite(BUTTON_PIN1,HIGH);

  // After setting up the button, setup debouncer
  debouncer.attach(BUTTON_PIN1);
  debouncer.interval(5);
}

void presentation()  {
  sendSketchInfo("Relay+Reed", "1.0");
  wait(100);
  present(CHILD_ID1, S_BINARY);
  wait(100);
  present(CHILD_ID2, S_BINARY);
  wait(100);
  present(CHILD_ID3, S_DOOR); 
}

void loop()
{
  if (!initialValueSent) {
    Serial.println("Sending initial value");
    send(msg.set(state?RELAY_ON:RELAY_OFF));
    send(msg2.set(state2?RELAY_ON:RELAY_OFF));
    Serial.println("Requesting initial value from controller");
    request(CHILD_ID1, V_STATUS);
    wait(2000, C_SET, V_STATUS);
    request(CHILD_ID2, V_STATUS);
    wait(2000, C_SET, V_STATUS);
  }
  if (debouncer.update()) {
    if (debouncer.read()==LOW) {
      state = !state;
  //    // Send new state and request ack back
   //   send(msg.set(state?RELAY_ON:RELAY_OFF), true);
    }
    {
  debouncer.update();
  // Get the update value
  int value = debouncer.read();

  if (value != oldValue) {
     // Send in the new value
     send(msg3.set(value==HIGH ? 1 : 0));
     oldValue = value;
  }
  }
}

}

void receive(const MyMessage &message) {
  if (message.isAck()) {
     Serial.println("This is an ack from gateway");
  }

  if (message.type == V_STATUS && message.sensor ==1) {
    if (!initialValueSent) {
      Serial.println("Receiving initial value from controller");
      initialValueSent = true;
    }
    // Change relay state
    state = (bool)message.getInt();
    digitalWrite(RELAY_PIN1, state?RELAY_OFF:RELAY_ON);
    send(msg.set(state?RELAY_ON:RELAY_OFF));
  }
   
  if (message.type == V_STATUS && message.sensor ==2) {
    if (!initialValueSent) {
      Serial.println("Receiving initial value from controller");
      initialValueSent = true;
    }
    // Change relay state
    state2 = (bool)message.getInt();
    digitalWrite(RELAY_PIN2, state2?RELAY_OFF:RELAY_ON);
    send(msg2.set(state2?RELAY_ON:RELAY_OFF));
  }
}

[scalz]

@Cameron-Payne
Hello and welcome!
Great to hear your success
About saving the state you shoud look at this https://www.mysensors.org/download/sensor_api_20#saving-state And there are more infos about the API.
Shortly save your state when it change, and load it in your setup.