enviro:bit Add-On for the BBC micro:bitSense the world around you with enviro: bit! It's loaded with sensors for air and weather, colour and light, and sound, and slots right onto your microbit. Just slot in your micro: bit, then code enviro: bit with the block based Microsoft MakeCode editor, or with MicroPython in the Mu code editor. The sensors go hand in hand really well with the LED matrix on micro: bit, letting you graph sensors readings or have the LEDs react to sound, for example.