Keypad based simple electronic lock using 8051 microcontroller (AT89C51) | Microcontroller › 8051 › Keypad based simple electronic lock using 8051 microcontroller (AT89C51) This topic has 1 reply, 2 voices, and was last updated 10 years, 12 months ago by AJISH ALFRED. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts May 3, 2013 at 1:48 am #2367 RishwanthParticipant my corrections are correct..my lcd s working..but nothing s getting displayed.. May 3, 2013 at 6:10 am #9611 AJISH ALFREDParticipant Please post your code and the circuit. If you refered it from a site, then please post the link. Suggest you to try some basic LCD display code only till it works and then go for the electronic lock code Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In