binaryCounter.py

'''binaryCounter.py
June 14, 2021
Author: Larry Priest email: larrytpriest@gmail.com
My binary counter. Displays binary count-up on a string of n LED's.
Hardware:
    RaspberryPi Pico
    breadboard or proto/perf board
    n 220 ohm resistors, n 5mm red LED's
pin 1/GP0 is the High bit in my wiring.
'''

import board
import digitalio
import time

TOTALBITS = 15  # start at zero
delay = 0.25  # seconds
count = 0xffff  # any interger (hex 'cause it makes sense)
LEDbits = []


class binaryCounter():
    def __init__(self):
        # Setup LED list
        subcommand = 'LEDbits.append(digitalio.DigitalInOut(board.GP'
        for i in range(TOTALBITS+1):
            fullcommand = subcommand + str(i) + '))'
            exec(fullcommand)
            LEDbits[i].direction = digitalio.Direction.OUTPUT

    # main loop
    def bicounter():
        for i in range(count):
            counterBits = bin(i)[2:]  # leading zeros missing
        #     byte = format(i, '08b') # gives full 8 bits
            print(counterBits)  # reality check
            byte_list = []
            for bit in iter(counterBits):
                byte_list.append(bit)
            list.reverse(byte_list)  # gits the list to the right
            bit_count = TOTALBITS  # reverse if u wired the other way up
            for i in iter(byte_list):
                if i == '1':
                    LEDbits[bit_count].value = True
                else:
                    LEDbits[bit_count].value = False
                bit_count -= 1
            time.sleep(delay)

    def bicounterClose():
        print('Closing outputs.')
        for i in range(len(LEDbits)):
            LEDbits[i].deinit()


if __name__ == '__main__':
    binaryCounter()
    try:
        binaryCounter.bicounter()
    except KeyboardInterrupt:
        pass
    finally:
        binaryCounter.bicounterClose()