How to use 4 channel Relay to control AC load with Arduino code

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The code provided is for 2 to 16 channel relay module to control AC or DC load. You will learn
-the meaning of lower trigger and high trigger.
-how to connect external load to the relay and isolate the relays from the arduino .
-Turn ON or OFF each relay or control all of them.

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Related videos:
4 channel Solid State Relay SSR https://youtu.be/Rfaz5qOLKYQ
4 channel Relay with Keypad https://youtu.be/dkESWpdDBYk
4 Channel relay with remote: https://youtu.be/d-iIchLyh48
16 channel relay https://youtu.be/Q9aBI4ELKC4

Tutorial by Ahmad Shamshiri from Ajax, Ontario, Canada

Get Arduino code for this video:
http://bit.ly/4chrelay

#robojax #robojax-relay
My Arduino Course on Udemy: http://bit.ly/rj-udemy

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4 Channel Solid state Relay: https://youtu.be/Rfaz5qOLKYQ

Watch 4 push button with this module to have push-ON stay ON, push-OFF
https://www.youtube.com/watch?v=3EZecphNdAI
Tutorial by Robojax.com
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Видео How to use 4 channel Relay to control AC load with Arduino code канала Robojax