Here’s something fun from [Chad Kapper] over on HackMakeMod: Escape Room Lockbox with the Cheap Yellow Display. You may have heard of the “cheap yellow display” (CYD), so-called due to the board’s ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Elise Czajkowski Elise Czajkowski is a writer on the sleep team. She’s been ...

Schematics diagram + PCB diagram (KiCAD 9) and case 3D model (Blender) are also provided. This project is a work-in-progress. Based on the well-known TransistorTester work of Karl-Heinz Kübbeler.

Install the PlatformIO IDE extension from the VSCode extension marketplace (see workspace recommendations). You may be asked to install Python. You may follow the ...