This Arduino board is bigger than your head, and it works

A YouTube builder shows off how he created an Arduino board that's 7x larger than the real thing... powered by a hidden ...
Hackaday

Blinking An LED With A Single Transistor

Let’s say you want to blink an LED. You might grab an Arduino and run the Blink sketch, or you might lace up a few components to a 555. But you needn’t go so fancy! [The Design Graveyard] explains how ...