This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

The matrix has seven columns, one for each segment on the display ... ve previously talked about [Fran]’s circuit using a 555 and a 4017B decade counter to make a display count down to 0.

There are a variety of means by which numbers can be displayed from an electronic circuit, and probably the most ubiquitous remains the seven-segment display. Take seven LEDs, lamps, LCDs ...