Project 2 (Moderate): What's the Secret Password?

features:
- enter 4 digits, only one set of combination will be correct(hence password)
- if the incorrect combination is entered, a red LED will light up, followed by a warning buzz
- if the correct combination is entered, a green LED will lit up, followed by a victory song
- resets after each trial
- includes 10 buttons, where each represents a digit(0-9)
- yellow LED's indicates the number of digits entered
- red LED is the warning light
- green LED is the "victory" light







parts:
- 1x 74HC595  shift registers
- 4x yellow LED's
- 1x green LED
- 1x red LED
- 10x buttons
- 10x 10k ohm resistor
- 6x 330 ohm resistor
- 1x buzzer

This is a fairly simple project, aimed for giving me more practice using shift registers.