connect a pi Raspberry to a relay

Question

hello I have a Raspberry pi 4 and wanted to connect to a relay but I can not find information on how to connect a Raspberry pi 4 and the relay equal to the photo someone can me I will then program in python, someone can help me. Thank you very much!

Answer 1

Assuming you already have built your relay and setup all the wiring you can just create a simple python script to use the relay:

#!/usr/bin/env python

import time

import RPi.GPIO as GPIO


GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)
GPIO.output(17, GPIO.LOW)

time.sleep(0.25)

GPIO.output(17, GPIO.HIGH)
GPIO.cleanup()