1. Camera captures video 2. Neural network recognizes pigeon 3. Watergun turns toward pigeon 4. Spray pigeon with watergun

Components:

* Electric battery-driven water gun (disassembled, orange) * USB camera * Orange Pi 5 * 2 servo motors (SG90 or MG90S) * Resistors and a transistor for turning on the watergun (e.g. IRLZ44N) It uses an open vocabulary object detection neural network (yolo_world_v2l), so any target can be programmed, not just pigeons. Runs on the Rockchip 3588's Neural Processing Unit.

See also https://x.com/sciencegirl/status/2054945932400087109