Most recently I hacked together a cat feeder that dispenses food from a hopper by weight. It's built into a nightstand and controlled only with a web interface

Most recently I hacked together a cat feeder that dispenses food from a hopper by weight. It's built into a nightstand and controlled only with a web interface hosted on an ESP32. Almost all the parts were lying around (motor+gearbox from a broken neck massager, a small pocket scale, a broken servo), so it leant itself to getting things done 15 minute busts of activity without having to order and wait for alot of parts.