//Code to test the hello.bus.45.bridge board with serial communication and a led. #include SoftwareSerial mySerial(3, 4); int incomingByte = 0; // for incoming serial data int led_pin = 0; //Pin5 of the ATtiny45 void setup() { mySerial.begin(9600); pinMode(led_pin, OUTPUT); } void loop() { if (mySerial.available() > 0) { incomingByte = mySerial.read(); mySerial.print("I received: "); //mySerial.println(incomingByte, DEC); mySerial.println(incomingByte); } }