This example creates one writable Home Assistant switch. When Home Assistant sends a command, onOutputCommand() changes the local output and immediately reports the resulting state back through the supplied HASwitch.

The ESP8266 build uses LED_BUILTIN; the ESP32 build uses GPIO 2. Confirm your board’s LED polarity before treating that output as a real load.

Set the Wi-Fi and MQTT placeholders in include/ExampleNetwork.h, flash the board, then toggle Example output in Home Assistant.

See MQTT usage and the shared examples guide.

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Switch Callback

README.md