A security researcher demonstrated how to use a pocket-sized microcomputer to sniff out keystrokes from a wireless keyboard or and even take control of a quadcopter drone. The Micro:bit is an ARM-based microcomputer designed by the BBC for use in computer education in the UK. It is powered by a 16MHz 32-bit ARM Cortex-M0 CPU with 16KB of RAM and Bluetooth connectivity. The expert showed that with a few line of Python coding it is possible to use it as a wireless sniffer.”]
Source: https://securityaffairs.co/wordpress/61474/hacking/bbc-microbit-hacking.html