electronic lock | Microcontroller › 8051 › device switching using password › electronic lock October 20, 2010 at 4:03 am #5099 AnonymousGuest try this out http://www.engineersgarage.com/microcontroller/8051projects/keypad-simple-electronic-lock-AT89C51 http://www.engineersgarage.com/microcontroller/8051projects/electronic-code-lock-with-password-using-at89c51
