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4-Channel Relay Module - Arduino Tutorial
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![Relay Circuit Diagram Simple](https://i.ytimg.com/vi/MQAdKe5MU40/maxresdefault.jpg)
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![4 Channel Relay Module Circuit Diagram](https://i2.wp.com/dipelectronicslab.com/wp-content/uploads/2021/06/4-Channel-relay-Module-1.jpg)
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![4 Channel Relay Schematic](https://i2.wp.com/www.electronics-lab.com/wp-content/uploads/2016/06/4-Channel-Relay-Board-IMG.jpg)
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![5 Volt 4 Channel Arduino Relay Module example - Arduino Learning](https://i2.wp.com/arduinolearning.com/wp-content/uploads/2017/01/4-channel-relay-module_bb.png)
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![12V 1/2/4/8 Channel Relay Board Module for Arduino Raspberry Pi ARM AVR](https://i2.wp.com/s3-eu-west-1.amazonaws.com/images.linnlive.com/e9d17265bce8102dfe3ed3c77033056a/2da759de-9e95-41cd-933e-7fbe32bd4939.jpg)
![Aptinex_ESP8266_IOT_WIFI_4_Channel_Relay_Module_Wiring_Drawing_JPG_V2](https://i2.wp.com/aptinex.com/wp-content/uploads/2017/09/Aptinex_ESP8266_IOT_WIFI_4_Channel_Relay_Module_Wiring_Drawing_JPG_V2.jpg)
![Circuit Diagram Of Relay Module](https://i2.wp.com/protosupplies.com/wp-content/uploads/2017/12/Relay-Module-1-x-5V-Schematic.jpg)
![4-Relay-Module locks in place : r/esp32](https://i2.wp.com/wiki.sunfounder.cc/images/9/95/4_channel_relay_PCB.png)
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![4-Channel Relay Module - Arduino Tutorial](https://i2.wp.com/www.circuits-diy.com/wp-content/uploads/2023/05/4-Channel-Relay-Module-Circuit.png)
![Relay Module Circuit Diagram](https://1.bp.blogspot.com/-e-FeG4irGTM/YQFwjy8OXWI/AAAAAAAABVM/wHNaYRIoycYCtm48aA72t58TVVsj32pCgCLcBGAsYHQ/s1204/Relay+Wiring+Diagram.png)