/*
  attiny_i2c_slave2.ino
  by Lucas Lim 
  created on 4/05/2020
  
  Purpose: Receive data from MASTER via the I2C bus
           Blink the LED

  The work is provided for academic purpose for Fab Academy 2020.
  Users accept all as is, no warranty is provided, no call/email
  from users will get a response. Users accept all liability. 
*/

#include <TinyWireS.h>

#define i2c_slave2 2

const int ledPin = 4;       //PB4 - Arduino Pin No. 4
//int times = 0;            //Number of times that LED will blink
byte received = 0;          //Received data(on number of times that LED will blink) from MASTER


void setup()
{
    TinyWireS.begin(i2c_slave2);    // join I2C bus as slave

}


void blink_led(int times)
{
    while(times--)
    {
        digitalWrite(ledPin, HIGH);
        delay(500);
        digitalWrite(ledPin, LOW);
        delay(500);
    }
}

 
void loop()
{
    
    if (TinyWireS.available()) {
      received = TinyWireS.receive();
      blink_led(received);
    }
    received = 0;
    
         
    // This needs to be here
    TinyWireS_stop_check();
}