A home automation relay with ESP is a Wi-Fi-enabled switching module that integrates an ESP8266 or ESP32 microcontroller with one or more electromechanical relays to control electrical appliances remotely. It connects to a wireless network and allows users to switch loads such as lights, fans, or pumps using mobile apps, cloud platforms, or microcontroller programming.
The ESP processor provides onboard networking capability and GPIO control, enabling automation logic, scheduling, and IoT communication. The relay section isolates the low-voltage control circuit from high-voltage loads, ensuring safe switching of AC or DC devices. These modules are widely used in smart home projects and DIY automation systems.
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