The servos are under the command of a micro:bit microcontroller board, which itself receives signals from a second micro:bit which is strapped to the human wishing to control the arm. The second ...

The BBC micro:bit single board ARM computer aimed at education does not feature as often as many of its competitors in these pages. It’s not the cheapest of boards, and interfacing to it in ...

With headers, the board costs $24.90, while without the headers, you can buy it at $22.10. Although they're both 8-bit and AVR-based, the microcontrollers on the Nano and Micro are entirely different.