esp-idf/examples/bluetooth/bluedroid/ble_50/peroidic_sync/README.md

Supported Targets	ESP32-C2	ESP32-C3	ESP32-C6	ESP32-H4	ESP32-S3

ESP-IDF Periodic Sync Example

This example supports the periodic extended scan to scan the extended advertisement.

To test this demo, we can run the periodic_adv_demo, which can start extended advertisement with supported param.

Please, check this tutorial for more information about this example.

How to Use Example

Before project configuration and build, be sure to set the correct chip target using:

idf.py set-target <chip_name>

Hardware Required

• A development board with ESP32-C3 SoC, ESP32-S3, ESP32-C2, ESP32-H4 and BLE5.0 supported chips (e.g., ESP32-C3-DevKitC-1, etc.)
• A USB cable for Power supply and programming

See Development Boards for more information about it.

Build and Flash

Run idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

I (362) BTDM_INIT: BT controller compile version [3e61eea]
I (372) coexist: coexist rom version 8459080
I (372) phy_init: phy_version 500,985899c,Apr 19 2021,16:05:08
I (492) system_api: Base MAC address is not set
I (492) system_api: read default base MAC address from EFUSE
I (492) BTDM_INIT: Bluetooth MAC: 7c:df:a1:40:01:c5

Output1 Without advertisement:

I (712) PERIODIC_SYNC: ESP_GAP_BLE_SET_EXT_SCAN_PARAMS_COMPLETE_EVT, status 0
I (712) PERIODIC_SYNC: ESP_GAP_BLE_EXT_SCAN_START_COMPLETE_EVT, status 0

Output2 with advetisement:

I (712) PERIODIC_SYNC: ESP_GAP_BLE_SET_EXT_SCAN_PARAMS_COMPLETE_EVT, status 0
I (712) PERIODIC_SYNC: ESP_GAP_BLE_EXT_SCAN_START_COMPLETE_EVT, status 0
I (712) PERIODIC_SYNC: Start create sync with the peer device ESP_MULTI_ADV_80MS
I (722) PERIODIC_SYNC: ESP_GAP_BLE_PERIODIC_ADV_CREATE_SYNC_COMPLETE_EVT, status 0
I (812) PERIODIC_SYNC: ESP_GAP_BLE_PERIODIC_ADV_SYNC_ESTAB_EVT, status 0
I (812) sync addr: c0 de 52 00 00 02
I (812) PERIODIC_SYNC: sync handle 1 sid 0 perioic adv interval 64 adv phy 2
I (812) PERIODIC_SYNC: periodic adv report, sync handle 1 data status 0 data len 28 rssi -48
I (892) PERIODIC_SYNC: periodic adv report, sync handle 1 data status 0 data len 28 rssi -47
I (972) PERIODIC_SYNC: periodic adv report, sync handle 1 data status 0 data len 28 rssi -48
I (1052) PERIODIC_SYNC: periodic adv report, sync handle 1 data status 0 data len 28 rssi -47
I (1132) PERIODIC_SYNC: periodic adv report, sync handle 1 data status 0 data len 28 rssi -49
I (1212) PERIODIC_SYNC: periodic adv report, sync handle 1 data status 0 data len 28 rssi -48
I (1292) PERIODIC_SYNC: ESP_GAP_BLE_PERIODIC_ADV_SYNC_LOST_EVT, sync handle 1

Troubleshooting

For any technical queries, please open an issue on GitHub. We will get back to you soon.