How to use the Raspberry Pi relay module Python
0. First
If you want to see how the things you make this time work, please see here (youtube video).
1. Connect the Raspberry Pi and the relay module
I will connect the wire to this relay module at once.
GND (green)
IN1 (blue)
IN2 (red)
IN3 (ash)
IN4 (white)
VCC (black)
GND (green) >> Pin.6
IN1 (blue) >> Pin.11 GPIO 17
IN2 (red) >> Pin.7 GPIO 4
IN3 (ash) >> Pin.5 GPIO 3
IN4 (white) >> Pin.3 GPIO 2
VCC (black) >> Pin.2 5V
2. Write a program
relay.py
import RPi.GPIO as GPIO
import time
#GPIO.setwarnings(False)
#If you get an error like a pin is being used, add this and it will work.
GPIO.setmode(GPIO.BCM)
pinlist = [2,3,4,17]
for i in pinlist:
GPIO.setup(i,GPIO.OUT)
GPIO.output(i,GPIO.HIGH)
try:
for i in pinlist:
GPIO.output(i,GPIO.LOW)
time.sleep(2)
finally:
print("End of Program!")
GPIO.cleanup()
When you do this, the lights on the relay module will light up in sequence.
Finally
How to use this relay module is also explained in Youtube, so please have a look if you like it. If you have any questions, please use the comment section of the video or the comment section of this article. Also, if you like it, please subscribe to the channel (https://www.youtube.com/channel/UCDYbu9aViDvkubFcwgbbKDA).
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