12 Hour Alarm Clock

 

For this project I wanted to created and alarm clock that was not driven by any software.  This clock does not have any microcontroller, FPGA or other programmable device.  The logic of the clock is entirely driven by hardware.  This clock contains just over 200 components.  There are buttons on the top of the enclosure to set the alarm time and the current time, a button to enable/disable the alarm, and a button to silence the alarm once triggered.  The printed out schematic at a 1:1 scale measures 3’x4′