LCD based digital alarm clock with digital thermometer using 8051 microcontroller (AT89C51) by NIKHIL | Microcontroller › 8051 › LCD based digital alarm clock with digital thermometer using 8051 microcontroller (AT89C51) by NIKHIL This topic has 0 replies, 1 voice, and was last updated 13 years, 2 months ago by query. Viewing 1 post (of 1 total) Author Posts July 13, 2011 at 5:24 am #1134 queryParticipant hello i am nikhil ‘i am making LCD based digital alarm clock with digital thermometer using 8051 microcontroller (AT89C51),but can u tel me which type of switch is used i mean 4 leg switch or 2 leg switch…..?n how they are connected…… Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In