A beginner-friendly IoT home automation system using NodeMCU ESP8266 and Blynk Cloud. Control up to 4 appliances remotely via smartphone using virtual pins and Wi-Fi.

In the simplest terms, a relay permits a small, independent, low-current circuit to control an independent, high-current circuit. For example, when you turn on the rear window defogger switch ...

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This can be used to activate a relay on which wires i.e. of your garage door are connected. The code can be used to remote control things (i.e. doors) in your home. It'ss highly recommended not to use ...