Countdown timer using 8051 microcontroller (AT89C51) | Microcontroller › 8051 › COUNT DOWN TIMER › Countdown timer using 8051 microcontroller (AT89C51) April 23, 2015 at 2:55 pm #12819 Ali TamooreParticipant Countdown timer using 8051 microcontroller (AT89C51) http://www.engineersgarage.com/microcontroller/8051projects/countdown-timer-using-AT89C51-circuit
