$($ I Use Arduino DUE Board $)$Using the arduino IDE, program $8$ LED'S to be initially off, then have an interrupt connected to play a pattern.

The procedure is :

A$)$ At the beginning, LEDs are off.

B$)$ You trigger the Arduino with a wire to run a program.

C$)$ The program runs, displaying a pattern

D$)$ Afterward, the LEDs are turned off again.