Show the reading of the potentiometer. The reading of pin0.read_analog() will range from 0 - 1023 depending on the rotation of the knob.Show the reading of the potentiometer as a percentControl the brightness of the pixel in the centre of the display (2,2)
When button a is pressed show the reading of pin 0 Rotate the knob to fill the microbit display with lit pixels. Note the potentiometer is connected to PIN1 in this example. There's no good reason for it; it's a mistake.