Arduino Prototypes with Wiring Diagrams and Tested Code

Arduino electronics prototypes I designed and built: a smart room controller, a light-tracking servo and an ultrasonic alarm with a servo-driven gate. Each project includes a clean breadboard wiring diagram with colour-coded wires, tested Arduino code and a list of components. I can also design 3D-printed enclosures in Fusion 360 so the electronics fit a finished product.
prototype electronics arduino wiring-diagram