It's amazing what you can do with an ESP32 (or two).
Arduino-Nano-Space-run- Small Project with Arduino Nano and an ST7789 OLED display, with which you can play Space Run, a small game I coded where you dodge meteors with a space shuttle. Pretty good ...
Slides make for great old-timey fun, but it’s awesome to have a digital backup of your old photos, too. An automatic digitizer can make quick work of your collection, and this build from [rbwood53] ...