status-tower/src/main.py

import RPi.GPIO as io
import time

io.setmode(io.BCM)

pins = {
    "red": {
        "pin": 27,
        "off": io.HIGH,
    },
    "yellow": {
        "pin": 22,
        "off": io.HIGH,
    },
    "green": {
        "pin": 24,
        "off": io.HIGH,
    },
    "blue": {
        "pin": 23,
        "off": io.HIGH,
    },
}


def off(pin):
    return pin["off"]

def on(pin):
    return io.LOW if pin["off"] == io.HIGH else io.LOW


def reset():
    for name, pin in pins.items():
        io.setup(pin["pin"], io.OUT)
        io.output(pin["pin"], off(pin))

reset()