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February 7, 2012 · 0 Comments

int pin = 7;
int incomingByte = 0;
void setup() { 
  Serial.begin(9600);
  pinMode(pin,OUTPUT);
} 
void loop () { 
  if(Serial.available() >0){
    incomingByte = Serial.read();
    Serial.print("ON!");
    Serial.println(incomingByte);
    if(incomingByte == 65){  // A
       digitalWrite(pin,HIGH);
       delay(150);
    }else{
      digitalWrite(pin,LOW);
      delay(150);
    }
  } 
}



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