States Relay

[JeeLet]

translate French--> Anglais

Hello
a request on the Eternal "status feedback" of a command.

did the command activate my request?
a can like an existential, to be or not to be

My test model diagram
Domoticz ----> Arduino output ----> Relay
Domoticz <----- Arduino Input <----- °--°

the scheme

a skit tampering

/*
*
 * compilation de 
 *  RelayActuator.ino et BinarySwitchSensor.ino
 *
 * LA DESCRIPTION
 * utilisation d'un contact auxilaire du relais pour retour d'etat d'une commande, 
 *
 *
 */


//----------------------- Library Configuration ---------------------
 #define MY_DEBUG                          // uncomment to enable debug prints to serial monitor

 #define MY_NODE_ID 22                   /*Node en ID static*/
 
 #define MY_TRANSPORT_WAIT_READY_MS 3000 /*Tempo d'attente de mis en Com, des millisecondes*/ 
 #define  MY_SPLASH_SCREEN_DISABLED /*désactive écran de démarrage MySensors (économie 120oct. en flash)*/

//-------------------------------Bus RS485--------------------------------
 #define MY_RS485       
 #define MY_RS485_DE_PIN 2
 #define MY_RS485_BAUD_RATE22 9600  /* débit du bus rs485*/
 // #define MY_RS485_HWSERIAL Serial1    /*pour Mega2560,Serial 1-2- ou 3 ? */

//---------------------------------------------------------------------------

#include <MySensors.h>
#include <Bounce2.h>  /*anti rebond*/

#define CHILD_ID 3 // contact enfant

//--------------- contact-----------------------
#define BUTTON_PIN  7   // Broche Arduino Digital I / O pour bouton / interrupteur reed

//------------------ relay------------------------------
#define RELAY_PIN 3  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define NUMBER_OF_RELAYS 1 // Total number of attached relays
#define RELAY_ON 1  // GPIO value to write to turn on attached relay
#define RELAY_OFF 0 // GPIO value to write to turn off attached relay

//----------------- contact
//Bounce debouncer = Bounce(); 
//int oldValue=-1;

Bounce debouncer = Bounce(); 
int oldValue=0;
bool state;

// -----------------contact--------------------

MyMessage msg(CHILD_ID,V_TRIPPED);  // V_LIGHT si vous utilisez S_LIGHT

//MyMessage msg(CHILD_ID,V_LIGHT); 

//-------------------- Relay--------------------------------
//void before()
//{
//    for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
//        pinMode(pin, OUTPUT);  // Then set relay pins in output mode
        // Set relay to last known state (using eeprom storage)
        //digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
//    }
//}
//----------------------  *************-----------------------------------

void setup()  
{  
  // Configurer le bouton
  pinMode(BUTTON_PIN,INPUT_PULLUP);
  digitalWrite(BUTTON_PIN,HIGH);
  
  // configure le bouton et debounce
  debouncer.attach(BUTTON_PIN);
  debouncer.interval(5);

 // Assurez-vous que les relais sont désactivés au démarrage 
  digitalWrite(RELAY_PIN, RELAY_OFF);
  // Réglez ensuite les broches de relais en mode sortie 
  pinMode(RELAY_PIN, OUTPUT);     
  
}

void presentation()
  {
 //------------------ contact-----------------   
  // pouvez utiliser S_DOOR, S_MOTION ou S_LIGHT,  Si S_LIGHT est utilisé, 
  //n'oubliez pas de mettre à jour le type de variable que vous envoyez. Voir "msg" ci-dessus.
 // present(CHILD_ID, S_DOOR);  
  //----------------- ************----------------
present(CHILD_ID, S_LIGHT);
  //-------------------- relay ---------------------------------------
      sendSketchInfo("Relay et State", "2.0");

    for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++)
    {
     present(sensor, S_BINARY);  // Register et  created as child devices
    }
 //--------------------****************-------------------------   
}

void loop() 
{
//      --------------- contact--------------  
  debouncer.update(); // control Etat contact 
  int value = debouncer.read(); // Récupère la valeur de mise à jour
//-----------------------------
  if (value != oldValue && value==0) {
      send(msg.set(state?false:true), true); // Envoyer un nouvel état et demander un accusé de réception
  }
  oldValue = value;
} 

//------------------------------------------ 
//  if (value != oldValue)  // Envoyer la nouvelle valeur
//  {
//     send(msg.set(value==HIGH ? 1 : 0));
//     oldValue = value;
//  }
//} 
//-----------------------------

//  --------------------************-------------------  

// -------------------- Relay-----------------------
void receive(const MyMessage &message)
{

if (message.isAck()) {
     Serial.println("This is an ack from gateway");
  }
  
    // We only expect one type of message from controller. But we better check anyway.
   // if (message.getType()==V_STATUS) {
        // Change relay state
             // digitalWrite(message.getSensor()-1+RELAY_PIN, message.getBool()?RELAY_ON:RELAY_OFF);
            
      
//-----------------cmd local----------------
 if (message.type == V_LIGHT) {
     // Change relay state
     state = message.getBool();
     digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
        
//-------------------------------------------        
        // Write some debug info
        Serial.print("    Incoming change for sensor:");
        Serial.println(message.getSensor());
        Serial.print("   New status: ");
        Serial.println(message.getBool());

        Serial.print(" etat contact ");
        Serial.println(oldValue);
        }
}

// ----------------- fin Pgm -----------------

already made a request on
but no answer. https://easydomoticz.com/forum/viewtopic.php?f=20&t=10601

so how to activate the relay state in Domoticz

Thank you