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46 lines
2.1 KiB
Markdown
46 lines
2.1 KiB
Markdown
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| Supported Targets | ESP32-C6 |
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| ----------------- | -------- |
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# OpenThread Power Save Example
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The example demonstrates the OpenThread Power Save based on light sleep, which reduces power consumption by turning off RF, PHY, BB, and IEEE802154 MAC during the sleep state.
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## How to use example
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### Hardware Required
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* Prepare an ESP32-C6 development board as an OpenThread Sleepy End Device (SED).
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* Connect the board using a USB cable for power supply and programming.
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* Choose another ESP32-C6 as the OpenThread Leader.
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## Configure the Openthread Dataset
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* Run [ot_cli](../ot_cli/) on another ESP32-C6 device to create openthread dataset configuration and start an openthread network as the leader.
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* Configure the Openthread dataset (`CONFIG_OPENTHREAD_NETWORK_DATASET`) in [ot_power_save](../ot_power_save/main/esp_ot_power_save_config.h), ensuring that the device's dataset matches the dataset of the leader.
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## Erase the ot_storage
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If desired, erase the ot_storage by running `idf.py -p <PORT> erase-flash` before flashing the board to remove previous examples or other project data.
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### Build and Flash
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Build the project and flash it to the board. Use the following command: `idf.py -p <PORT> build flash monitor`.
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### Example Output
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As the example runs, you will see the log output indicating the initialization and operation of OpenThread, including the device joining the OpenThread network as a Sleepy End Device (SED) and periodic polling of the leader.
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```
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I (769) btbb_init: btbb sleep retention initialization
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I (769) ieee802154: ieee802154 mac sleep retention initialization
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I(769) OPENTHREAD:[I] ChildSupervsn-: Timeout: 0 -> 190
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I (699) main_task: Returned from app_main()
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I (799) OPENTHREAD: OpenThread attached to netif
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I(799) OPENTHREAD:[N] Mle-----------: Mode 0x0f -> 0x04 [rx-on:no ftd:no full-net:no]
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I(809) OPENTHREAD:[N] Mle-----------: Role disabled -> detached
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I (819) OPENTHREAD: netif up
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I(1519) OPENTHREAD:[N] Mle-----------: Attach attempt 1, AnyPartition reattaching with Active Dataset
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I(2479) OPENTHREAD:[N] Mle-----------: RLOC16 fffe -> 5023
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I(2529) OPENTHREAD:[N] Mle-----------: Role detached -> child
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```
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