An alarm system that requires a password and has a display to show the current state.
- Implements a custom library for communicating with a LCD display through an 8-bit serial-in parallel-out shift register (54HC595).
- Obtains a password from the use through a keypad.
- Alarm through a motor and LED's.
- Receives a signal from a PIR motion sensor.
Dude didn't know about state machines, forgive him lol.
