Password Controlled Door Opener Using 8051

One 4*4 keypad (arranged in matrix) is using to enter password which is interfaced with 8051 micro-controller. One LCD is also attached with micro-controller to show entered password, or if password is right or wrong.

By default password is 1234. As user will enter password correctly, one door model will open & after 5 second door will automatically close.

If entered password is wrong then device will start beep for 3 second.

Project customization is also available.