I saw on Twitter that some people have got the GlowBugs, more commonly used the CodeBugs (http://www.codebug.org.uk/learn/activity/73/glowbugs/), to work with the Micro:bit. Here is my go at doing it. I just wanted to get one GlowBug to flash Red, Green and Blue and keep cycling around.
The start point was to base it on the code from http://microbit-micropython.readthedocs.io/en/latest/neopixel.html for using Python with neopixels. The GlowBugs are essentially a single neopixel. So I connected the Data In to pin 0 and set the strip length to 1 ( np = neopixel.NeoPixel(pin0, 1) ) and then set the colours by setting np to the colour wanted (eg. Red np = (255, 0, 0) ).
from microbit import *
# Setup the Neopixel strip on pin0 with a length of 1 pixel
np = neopixel.NeoPixel(pin0, 1)
np = (255, 0, 0)
np = (0, 255, 0)
np = (0 , 0 , 255)
Video of it in action.
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