Learning to build a robot arm will teach you how to breadboard a circuit, how to program your Arduino, and how to work with moving parts. In the end, you’ll have a real, physical thing that does ...

The robots are simple circuits – an ATtiny85 with an LED and pair of phototransistors. The code is provided both in Arduino’s wiring, and in straight C++.

The good news is that with an Arduino, you can build a robot that handles it for you. This one is a little more complicated than just connecting sensors, but still very easy for the average person ...

2. Build a Robot Arm If you really want to learn a ton of different Arduino-related skills with one project, a robot arm is a great place to start.