Using 4 relay module with arduino nano - Project Guidance - Arduino Forum
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Control PCF8574 to output to energise relay in Arduino Iot Cloud - Hardware - Arduino Forum
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Arduino 4 relay module - General Electronics - Arduino Forum
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Intermittent problem with relay board project - Project Guidance - Arduino Forum
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Protecting Arduino from Manually controlled relay - Project Guidance - Arduino Forum
![](https://i0.wp.com/randomnerdtutorials.com/wp-content/uploads/2019/01/guide-relay-module-arduino-featured.jpg?fit=1280%2C720&quality=100&strip=all&ssl=1)
Guide for Relay Module with Arduino
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Nano 33 IOT relays, buttons and LEDs - Project Guidance - Arduino Forum
![](https://content.instructables.com/FW3/3DVS/IBRRT6RB/FW33DVSIBRRT6RB.jpg?auto=webp&frame=1&width=320&md=1ab6561bd5fe13aeb675c9fdd6081548)
Arduino 2 Channel Relay : 3 Steps - Instructables
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Using same power supply to drive relay and Arduino - Project Guidance - Arduino Forum
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Would this change work? - Project Guidance - Arduino Forum
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Rocket Reaction Control Thruster and Leg System Diagram and Code Help - #19 by panagosdm - Project Guidance - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/4X/5/9/7/5974368b6b5174aa9fce6c9219e7caa68c801066.jpeg)
4 Channel Relay Help - Project Guidance - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/4X/d/6/d/d6d42be8bfaff781205ac506efd5b2327b2283ed.png)
Relay triggers onwantted on startup - General Electronics - Arduino Forum