Fidget Dot - a CircuitPython School Challenge Solution

We present the solution to "Fidget Dot", the challenge from the end of "Bring on Da Func 2". In this challenge, pressing A advances a dot counterclockwise, pressing b advances the dot clockwise. Dots must go completely around the CircuitPlayground, and beginning dots should be at either 0 (if A is pressed) or 9 (if B is pressed). Functioning code is illustrated to show how updating values from a function call impact the status of the CircuitPlayground.
Part of Prof. John Gallaugher's Physical Computing university course. bit.ly/circuit...