Robots and Physical Computing

In a previous post Micro:bit and Cube:bit 'says' Hello  I introduced the start of me playing with the  4tronix Cube:bit . One of the things I want to try is get the cube to react to music, based around the accelerometers in a micro:bit picking up vibrations.  Luckily, in an earlier post, I had done something similar for the  Proto-Pic Micro:pixel  (see  Dancing Pixels  for more details).  Essentially the idea is  the vibrations from the music shake the micro:bit enough to give measurable changes in three axis, and these values are used to change the pixel's colour - in fact five pixels at a time. The code shown below is all that was needed: from microbit import * import neopixel, random np = neopixel.NeoPixel(pin0, 125) while True:     for pxl in range (2,125, 5):         rd=int(abs(accelerometer.get_x())/20)         gr=int(abs(accelerometer.get_y())/20)   ...

In a previous post  Proto-Pic board, Microbit and Micropython  I played with the  Proto-Pic micro:pixel 4x8 NeoPixel  board.  This post is just a short description of a quick play with making it flashing blocks of different colours across the board. The routine produces five random numbers (three to define the colours, one for which pixel is selected and the last for the delay each iteration). The idea of being - a pixel is selected, but so are the ones either side of it, each one has a different combination of the colour values, but only two of the pixels are turned off after the delay. from microbit import * import neopixel, random # Setup the Neopixel strip on pin0 with a length of 2 pixels np = neopixel.NeoPixel(pin0, 32) while True:     pxl=random.randint(1,30)     rd=random.randint(1,32)     gr=random.randint(1,32)     bl=random.randint(1,32)     t1=random.randint(10,100)   ...