//Arduino Sketch for example program with data being sent to the arduino

double valA,valB;

int incomingByte;

void setup()
{
   Serial.begin(115200);
}

void loop()
{ 
  
   if (Serial.available()>0) 
   {
     
      incomingByte = Serial.read();
      if (incomingByte=='A') valA=0.0;
      if (incomingByte=='B') valB=0.0;
    
   }
   
   valA=valA+0.1;
   valB=valB+0.2;
  
   //Print value A
   Serial.print(valA);
   
   //Then its letter identifier 
   Serial.print("A");   
   
   //Print value B
   Serial.print(valB);
   
   //Then its letter identifier 
   Serial.print("B");  

   delay(500);   
}