Relay module at Raspberry Pi zero II wont work as expected

Asked Feb 13 '23 at 05:17

Active Feb 13 '23 at 05:19

Viewed 36 times

I have connected VCC in 5V pin, GND in gnd pin and IN in GPIO 26 of my Pi. Using simple python code to control the relay

import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
relay_ch = 26
GPIO.setup(relay_ch, GPIO.OUT) // this switch the relay on (green led with sound)
GPIO.output(relay_ch, GPIO.HIGH) //this wont do anything
GPIO.output(relay_ch, GPIO.LOW) //this wont do anything
GPIO.output(relay_ch, True) //this wont do anything
GPIO.output(relay_ch, False) //this wont do anything
GPIO.setup(relay_ch, GPIO.IN) // this turn the relay swift off

why??

I'm using SRD-05VDC-SL-C relay module.

edited Feb 13 '23 at 05:19

asked Feb 13 '23 at 05:17

Marcel Kopera

Are you connecting to the correct pin? https://pinout.xyz/pinout/pin37_gpio26 – Dougie Feb 13 '23 at 07:43
What relay module? Most won't work with a Pi. Have you checked ANY of the hundreds of similar questions? – Milliways Feb 13 '23 at 08:34
As hinted, your 5V relay may not be triggered by the Pi's 3.3V outputs. Post a photo of your wiring and a link to the actual relay board you are using. Also modify your code to something that will trigger the relay on or off with time.sleep(2) after each. – CoderMike Feb 13 '23 at 18:29
Does this answer your question? Can you use a 5V Relay Module with the Pi? – Dougie Feb 14 '23 at 10:41

Relay module at Raspberry Pi zero II wont work as expected

0 Answers0