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.pin = num
        self.off_mode = off

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

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

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

    def blink(self, blinks, blink_time_s):
        for _ in range(0, blinks):
            self.on()
            time.sleep(blink_time_s)
            self.off()

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

def reset():
    for name, pin in pins.items():
        pin.setup()
        pin.blink(3, 0.3)

reset()