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How to make MQTT ESP8266 NodeMCU Home Automation project to control relays from the switch and smartphone (Circuit + Code) through internet.

In this IoT project, I have shown how to make an MQTT ESP8266 Home Automation project to control a 4-channel relay module from the manual switch & smartphone.

This NodeMCU ESP8266 control smart relay has the following features:
1. Control home appliances through the internet.
2. Control home appliances manually with pushbuttons.
3. Monitor real-time feedback on the smartphone.

So, you can easily make this home automation project at home just by using a NodeMCU and relay module. Or you can also use a custom-designed PCB for this project.”

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