Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...

On December 17th, 2024, TikTokers [1] @cindyanddanfyc, a husband and wife named Dan and Cindy, posted a video in which Cindy films Dan sitting in his boat looking at a nearly-finished spool of wire.