#include <OrbicraftBus.h> // Import the Orbicraft Construction Set control library

/*
  * Declare the msg variable as the Message data type
  * Message comprises a structure that contains IDs and transferred message content
*/
Message msg;

/*
  * Declare the bus variable as the OrbicraftBus data type 
  * OrbicraftBus is a class describing interaction between Arduino and Orbicraft construction set bus
*/
OrbicraftBus bus;

// Declare the msgSize variable to hold the size of the received message
uint16_t msgSize = 0;

void setup() {
  Serial1.begin(9600); // Define data transfer rate over Serial1 (Check Serial2.begin(9600))
}

void loop() {
  msgSize = bus.takeMessage(msg); // Try to read the message using the takeMessage method
  if (msgSize > 0){ //If there is a message…
    switch (msg.id){//Process in a particular manner depending on message ID

      // Consider the case with ID 1
        case 0x01:
          turnOnLed(); // Call the function for turning the LED on and off
          break;
    }         
  }
}

void turnOnLed(void){
  digitalWrite(LED_BUILTIN, HIGH); //Turn on the built-in LED
  delay(3000); //Wait 3 seconds
  digitalWrite (LED_BUILTIN, LOW); //Turn off the built-in LED
}

/*
 * The following block of code must always be appended to the program.
 * The function is called automatically and is necessary for message processing.
*/ 
void serialEvent2() {
  bus.serialEventProcess();
}