
There’s nothing like spilling your favorite drink all over the floor. But before you let the disappointment wash over you, consider the accident another glorious opportunity for a fun microelectronics project! At least, that’s what The Fedmog Challenge did when they created this awesome self-balancing tray project. It’s powered by an Arduino Nano and automatically detects when the serving tray is at an angle then makes adjustments to keep the surface level.
The project was created totally from scratch from the housing to the code used to program the system. The unit consists of quite a few 3D-printed components, including four arms that are used to stabilize the upper plate. Each arm has three joints with ball bearings in each one for smooth rotations.