Schematic 12 Hour Digital Clock Circuit Diagram. The output for generating an alarm signal at pin 16. Pic16f84 12 or 24 hour digital clock circuit diagram and programming.
The 1 s of seconds receives the clock signal at the 74ls90 decade counter it counts 0 9 then clocks a 74ls93 for the 10 s of seconds. The time is set by pressing sw2 to advance minutes and sw3 to advance hours. It s my st that just looking at the circuit diagram replicating it on a bread board is not what electronics is about.
This pic digital clock is based on a 16f84 microcontroller.
The 1 s of seconds receives the clock signal at the 74ls90 decade counter it counts 0 9 then clocks a 74ls93 for the 10 s of seconds. Digital clocks of different kinds have been built by countless hobbyists over the world. Pressing sw1 will cause seconds to be displayed. It s my st that just looking at the circuit diagram replicating it on a bread board is not what electronics is about.
