Introduction - If you have any usage issues, please Google them yourself
The Tower system flashes green LED at 1 sec
− You press button1 to stop LED flashing and start a new run
of the game
− The Tower system waits for a random time to turn on the
red LED. When you see the red LED is on, press button2
− If the interval LED on to button2 press is smaller than
a threshold, both red and green LED flash at 1 sec.
Otherwise, red LED flash at 0.5 sec. Your response time is
also printed on the screen.
− After 5 sec, return to flashing green LED at 1 sec and wait
for next run