In this task you are required to write a communication protocol that will allow you to send data from master to slave. Slave device should have an LED that blinks at regular intervals. The blink frequency should be modifiable through serial communication. The blink should be performed using delay and communication should be facilitated through hardware interrupts so that the blink will not cause any issues with the communication. Master device should have a potentiometer to control blink interval of the slave. Only send the new blink interval if the potentiometer is changed.

Draw your circuit and write your program on this page. Use the back of the paper if necessary.