Need help with Pibus and RPi3B+

[TooEasyL2P]

Ok.

What I found is RPi.GPIO

From your post I figure it out that I need to test GPIO23, which is pin 16.

Code:

import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BOARD)
GPIO.setup(16, GPIO.OUT)

for i in range(20):
    GPIO.output(16,True)
    time.sleep(1)
    GPIO.output(16,False)
    time.sleep(1)
GPIO.cleanup()

And there's no sound. So I'm doing something wrong, or relay doesn't click.

Tried GPIO.BCM as well with pin 23. Same result.