I am a beginner in Robotic class.
I mean how I can program three LEDs turn sequence ( LED1 turn on ,after LED2 turn on,LED3 turn on, and after LED3 turn off, the circuit will be shout down ) .
LED 1 turn on for 20's after turn off
LED2 turn on for 20's after turn off as well but the LED2 will be on 20's after LED1 turn off.
LED3 turn on for 20's after turn off as well but the LED3 will be on 20's after LED2 turn off.
LED3 turn off and the circuit will cut off.