usCom_046_WR_source_file.ino

/* =============================================================================================================
    
   
   W


   Controle de Relés para Domótica via Serial

   
  
   Autor: Daniel S Assncao  Data: 
   
   w
   
   
============================================================================================================= */


// =============================================================================================================
// --- Protótipo das Funções ---
void relayActive(int relay_number);   //função para ativação do respectivo relé


// =============================================================================================================
// --- Variáveis Globais ---
int number ;


// =============================================================================================================
// --- Configurações Iniciais ---
void setup()
{
  Serial.begin(9600); //inicializa serial

  //Configura saída para relés a serem controlados no 16 Relay Module
  pinMode(5,  OUTPUT);  //Code 3
  pinMode(7,  OUTPUT);  //Code 5
  pinMode(9,  OUTPUT);  //Code 7

  //Inicializa todas em LOW
  digitalWrite(5,  LOW);
  digitalWrite(7,  LOW);
  digitalWrite(9,  LOW);

   
} //end setup


// =============================================================================================================
// --- Loop Infinito ---
void loop()
{
 
  if (Serial.available()) 
  {

    //read serial as ascii integer
    int ser_n = Serial.read();
    //Print the value in the serial monitor
    Serial.println(ser_n);

     if(ser_n >= 48 && ser_n <= 57){    
      //The ascii equivilent of numbers 0 - 9 are 48 - 57
      // so subtracting 46 from the ascii gives us 2 - 12 (the pins we want to use)
      int number = ser_n - 46;

      relayActive(number);
     }

  }

}

void relayActive(int relay_number)
{
  
  digitalWrite(relay_number, !digitalRead(relay_number));
  
}