This expandable LED display for a microcontroller in Figure 1 has a simple interface with only 6 data/control wires and can be easily accommodated to a DIY design. The display has static indication.

For me, when I start a new project, I am not interested in directly copying an idea that is already out there. On the contrary, I find it more fulfilling to work to improve those ideas by adding new ...

In this project, I'll make a small circuit capable of blinking lights, on its output we get a digital signal that we can use to turn on and off an external light like an LED. This circuit uses the ...