Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push button increment of the ... Just follow the schematic circuit ...

The decimal number increases from 0 to 255 each time the momentary push-button ... the second led from the right will be on. Now lets see the schematic and how I’ve connected the 8 leds + resistors ...

PIC, AVR, and Arduino are ubiquitous in projects ... We’ve embedded video of the circuit controlling an LED after the break. This IC ends up in a lot of projects so dig through your parts ...