He connected the Arduino Mega’s LED output to a pair of LittleBits which then switch a servo between two positions. A bare servo wouldn’t be much fun, so [Outaspaceman] connected a tentacle ...

But [Playful Technology] wanted to control the hands with an Arduino directly and ... detach the electromagnet from the rest of the circuit and control it yourself. The module he used had a ...

It can be programmed with the Arduino IDE desktop and web editors, as well as the Arduino CLI. It also works with most of the popular libraries like Wire, SPI, and Servo. The Uno Rev3 is priced at ...