After designing my first shelf in TinkerCAD, I wanted a project that actually needed a proper enclosure rather than a mounting bracket. I’d been building a small self-contained WiFi scanner around this cheap ESP32 dev board — an ESP32 module with a built-in 1.14 inch LCD — paired with a small rechargeable battery, and it had been living on my desk as a loose tangle of board, wires and cells. Time to give it a case.