15-12-2012, 01:06 PM
SEVEN SEGMENT BASED ALARM CLOCK USING 8051 MICRO CONTROLLER
SEVEN SEGMENT.docx (Size: 130.7 KB / Downloads: 96)
ABSTRACT
An alarm clock is a clock that indicates a pre-set time by producing sound at that time. This functionality of digital clock is used to awaken people or remind them of something. This circuit is an extension to the digital clock with time setting option. Here an extra switch is provided to set the alarm. While the alarm is set, the clock time does not stop and runs in the background. The project is build around the 8051 microcontroller (AT89C51)