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.

Are you just starting out with soldering and want to practice on a few cheap and easy projects? That’s exactly where I am in my microcontroller journey, and these are the simple projects I did first ...

If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, ...