Arduino sketch to go with pyCraft fork

gistfile1.txt

int incomingByte = 0;

void setup() {
  pinMode(2, OUTPUT);
  pinMode(13, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  if (Serial.available() > 0) {
    incomingByte = Serial.read();
    
    if (incomingByte == 0x41) {
      digitalWrite(2, HIGH);
      digitalWrite(13, HIGH);
    }
    else if (incomingByte == 0x42) {
      digitalWrite(2, LOW);
      digitalWrite(13, LOW);
    }
    else {
      Serial.print("I received: ");
      Serial.println(incomingByte, DEC);
    }
  }
}