Paul came to the shop with a 2′ carnival light arrow sign that had five LED light bulbs inside. He asked if I could make them light one at a time to animate the pointing effect. Read on to see how it was done.
In recent posts I’ve covered how to use LEDs and how to use shift registers and even how to combine shift registers and LEDs to control numeric displays. In this post we’re going to use 64 LEDs in an 8×8 LED grid.