status-tower/src/main.py

import RPi.GPIO as io
import time

io.setmode(io.BCM)


class Pin:
    def __init__(self, num, off=io.HIGH):
        self.num = num
        self.off = off

    def setup(self):
        io.setup(self.pin, io.OUT)

    def off(self):
        io.output(self.pin, self.off)

    def on(self):
        io.output(self.pin, io.LOW if self.off == io.HIGH else io.HIGH)

pins = {
    "red": Pin(27),
    "yellow": Pin(22),
    "green": Pin(24),
    "blue": Pin(23),
}

def reset():
    for name, pin in pins.items():
        pin.setup()
        pin.off()
        pin.on()
        time.sleep(2)
        pin.off()

reset()