Follow the ESP RainMaker Documentation Get Started section to build and flash this firmware. Just note the path of this example.

• This example uses the BOOT button and RGB LED on the ESP32-S2-Saola-1/ESP32-C3-DevKitC board to demonstrate a switch.
• The LED state (green color) indicates the state of the switch.
• Pressing the BOOT button will toggle the state of the switch and hence the LED. This will also reflect on the phone app.
• Toggling the button on the phone app should toggle the LED on your board, and also print messages like these on the ESP32-S2 monitor:

I (16073) app_main: Received value = true for Switch - power

The ESP32-S2-Saola-1 board has the RGB LED connected to GPIO 18. However, a few earlier boards may have it on GPIO 17. Please use CONFIG_WS2812_LED_GPIO to set the appropriate value.

Press and hold the BOOT button for more than 3 seconds to reset the board to factory defaults. You will have to provision the board again to use it.