ESP-Nodes/ESP32-Rainmaker-Multidevice/multi_device

Multi Device Example

Build and Flash firmware

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

What to expect in this example?

• This example just demonstrates how you can have multiple devices on the same board.
• It has 4 devices
  • Switch
  • Lightbulb
  • Fan
  • Temperature Sensor
• It uses the BOOT button and RGB LED on the ESP32-S2-Saola-1/ESP32-C3-DevKitC board to demonstrate a switch, and the esp timer to demonstrate the temperature sensor.
• 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 temperature value is changed by 0.5 every minute.
• It starts at some default value (25.0) and goes on increasing till 99.5. Then it starts reducing till it comes to 0.5. The cycle keeps repeating.
• You can check the temperature changes in the phone app.
• Lightbulb and Fan are dummy devices, but you can try setting the values from the phone app and see them reflect on the ESP32-S2 monitor.

LED not working?

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.

Reset to Factory

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.