Description:
This simulates a locker in which that the piezzo-buzzer will beep in a higher frequency (means that it reads the correct values) if the right combination of values of potentiometer is set, else it will beep in a lower frequency (wrong value is read)
Materials:
- Arduino
- Potentiometer
- Speaker
Arduino Code:
https://hkn.eecs.berkeley.edu/~hilfialkaff/files/buzzer_lock.pde