With 40 of the versatile timer chips in a build, you might just get something completely unexpected, like this 555-based eight-bit digital counter. This one comes to us by way of [Astronomermike ...

Ring Counter A loop or ring of "counter" stages, in which only one flip-flop will be set at any given time. An input trigger pulse causes the "on" state to move to the adjacent stage. Thus, the "on" ...

In this project a counter is designed to count from 0 to 99, and the display is refreshed every 5ms inside the timer interrupt service routine. The main program can then perform other tasks, in this ...