relay_control.py

import time

import RPi.GPIO as GPIO


def gpio_on(channel, seconds) -> None:
    GPIO.setmode(GPIO.BOARD)
    GPIO.setup(channel, GPIO.OUT)
    start = int(time.time())
    state = 1
    GPIO.output(channel, state)
    while True:
        time.sleep(5)
        if(int(time.time()) >= (start + seconds)):
            state = 0
            break
    GPIO.output(channel, state)


def main() -> None:
    gpio_on(37, 30)


if __name__ == '__main__':
    main()