Shared demo
An infrared alarm system (Tier 2)
By Tier 2 I mean that I will only be able to stop the alarm using a password. and Tier 1 or Tier 0 is that normal led blinks when intercepted or the buzzer sound.

By Tier 2 I mean that I will only be able to stop the alarm using a password. and Tier 1 or Tier 0 is that normal led blinks when intercepted or the buzzer sound.