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.

This design idea (Figure 1) shows how easily “new flesh can be added to the old bones” and how some new functions can be added to the simple LED display that was published earlier. Figure 1 Upgraded ...

If by chance you're looking for yet another LED-heavy DIY project to tackle, you may want to take a gander at this so-called persistence-of-vision LED sphere, which will let you pump out some ...