Lesson 67: Controlling 8 channel relay with a 4x3 keypad to control 4 AC or DC loads RJT155

This tutorial explains how to use a 4x3 keypad with Arduino to control 4 channel relay module to turn ON (keep ON) or turn OFF (keep OFF). This a great home or industrial automation project.

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📚⬇️ Download and resource page for this video https://robojax.com/RJT155


Starts with introduction and hardware
00:00 Introduction
05:53 Wiring Explained
07:24 Code explained
15:41 Arduino code running demonstration



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#robojaxArduinoCourse #robojax_keypad #robojax_relay
Related videos:
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4x3 keypad and get code:    • How to use 4x3 Keypad with Arduino RJT104  
4x4 hard keypad :    • How to use 4x4 matrix hard keys keypad  wi...  
5x4 keypad    • How to use 5x4 20 keys keypad  with Arduin...  
All keypad videos: https://www.youtube.com/robojaxTV/sea...


Tutorial by Ahmad Shamshiri form Canada
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