CodeLockAVR electronic combination lock is realised withAtmel AVR microcontroller AT90S2313. Program in hex code is2 kB long. User code is consisted of 1 to 4 digits.If the code is entered in the correct sequence, then after 1 secondthe relay and the electric striker (in the door) switch on for 1second and then switch off again.User code can be changed via 3x4 matrix keypad. Keypad can bebought at local electronic shop.Initial user code (1234) is set up with a jumper. The jumper mustbe inserted before the voltage (12V) connection. The jumper mustbe removed after 2 beeps.




File list:
CodeAVRpcb.pdf
codelcd-D.bas
codelcd.hex
CodeLockAVReng.pdf