So you've already outgrown Arduino's most beginner-friendly board, the Uno, and are looking to move on to bigger, more exciting projects. In that case, the Nano family might just be what you need.
Raspberry Pi offers lots of different add-ons and HATs (Hardware Attached on Top) for their $50 computer, including a desktop kit, a Build HAT for connecting to Lego motors, and a TV HAT for receiving ...