[arduino code examples for B2]-11 digital INPUT trigger OUTPUT directly

Code:
/*

   Made by KinCony IoT

   https://www.kincony.com



   Demo: KinCony B2 DI Control Relay

   Board: KinCony B2 (ESP32)



   Digital Input 1 -> GPIO6

   Digital Input 2 -> GPIO7



   Relay 1 -> GPIO4

   Relay 2 -> GPIO46

*/



// Digital Inputs

#define DI1_PIN 6

#define DI2_PIN 7



// Relay Outputs

#define RELAY1_PIN 4

#define RELAY2_PIN 46



// Relay logic (Active LOW)

#define RELAY_ON  LOW

#define RELAY_OFF HIGH



// Store previous DI states

int lastDI1State;

int lastDI2State;



void setup()

{

  // Configure digital inputs

  pinMode(DI1_PIN, INPUT);

  pinMode(DI2_PIN, INPUT);



  // Configure relay outputs

  pinMode(RELAY1_PIN, OUTPUT);

  pinMode(RELAY2_PIN, OUTPUT);



  // Turn OFF relays at startup

  digitalWrite(RELAY1_PIN, RELAY_OFF);

  digitalWrite(RELAY2_PIN, RELAY_OFF);



  // Read initial input states

  lastDI1State = digitalRead(DI1_PIN);

  lastDI2State = digitalRead(DI2_PIN);



}



void loop()

{

  // Read current DI states

  int di1State = digitalRead(DI1_PIN);

  int di2State = digitalRead(DI2_PIN);



  // DI1 changed

  if (di1State != lastDI1State)

  {

    lastDI1State = di1State;



    if (di1State == HIGH)

    {

      digitalWrite(RELAY1_PIN, RELAY_ON);

    }

    else

    {

      digitalWrite(RELAY1_PIN, RELAY_OFF);

    }

  }



  // DI2 changed

  if (di2State != lastDI2State)

  {

    lastDI2State = di2State;



    if (di2State == HIGH)

    {

      digitalWrite(RELAY2_PIN, RELAY_ON);

    }

    else

    {

      digitalWrite(RELAY2_PIN, RELAY_OFF);

    }

  }



  // Small delay for stability

  delay(10);

}