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Arduino-ESP32 Zigbee Light Switch Example

This example shows how to configure Zigbee Coordinator and use it as an HA on/off light switch. This example is based on ESP-Zigbee-SDK example esp_zigbee_HA_sample/HA_on_off_switch.

Supported Targets

Currently, this example supports the following targets.

Supported Targets ESP32-C6 ESP32-H2

Hardware Required

  • One development board (ESP32-H2 or ESP32-C6) acting as Zigbee end device (loaded with Zigbee_Light_bulb example).
  • A USB cable for power supply and programming.
  • Choose another board (ESP32-H2 or ESP32-C6) as Zigbee coordinator (loaded with Zigbee_Light_switch example).

Configure the Project

Set the Button Switch GPIO by changing the GPIO_INPUT_IO_TOGGLE_SWITCH definition. By default, the LED_PIN is GPIO_NUM_9.

Using Arduino IDE

To get more information about the Espressif boards see Espressif Development Kits.

  • Before Compile/Verify, select the correct board: Tools -> Board.
  • Select the Coordinator Zigbee mode: Tools -> Zigbee mode: Zigbee ZCZR (coordinator).
  • Select Partition Scheme for Zigbee: Tools -> Partition Scheme: Zigbee 4MB with spiffs.
  • Select the COM port: Tools -> Port: xxx where the xxx` is the detected COM port.
  • Optional: Set debug level to info to see logs from Zigbee stack: Tools -> Core Debug Level: Info.

Troubleshooting

If the End device flashed with the example Zigbee_Light_Bulb is not connecting to the coordinator, erase the flash of the End device before flashing the example to the board. It is recommended to do this if you re-flash the coordinator. You can do the following:

  • In the Arduino IDE go to the Tools menu and set Erase All Flash Before Sketch Upload to Enabled.
  • In the Zigbee_Light_Bulb example sketch uncomment function esp_zb_nvram_erase_at_start(true); located in esp_zb_task function.

Important: Make sure you are using a good quality USB cable and that you have a reliable power source

  • LED not blinking: Check the wiring connection and the IO selection.
  • Programming Fail: If the programming/flash procedure fails, try reducing the serial connection speed.
  • COM port not detected: Check the USB cable and the USB to Serial driver installation.

If the error persists, you can ask for help at the official ESP32 forum or see Contribute.

Contribute

To know how to contribute to this project, see How to contribute.

If you have any feedback or issue to report on this example/library, please open an issue or fix it by creating a new PR. Contributions are more than welcome!

Before creating a new issue, be sure to try Troubleshooting and check if the same issue was already created by someone else.

Resources

The ESP Zigbee SDK provides more examples: