1| Supported Targets | ESP32-C3 | ESP32-S3 | 2| ----------------- | -------- | -------- | 3 4# ESP-IDF Gatt Security Client Example 5 6This example shows how to use the ESP BLE5.0 security APIs to connect in secure manner with peer device and use encryption for data exchange. 7 8## How to Use Example 9 10Before project configuration and build, be sure to set the correct chip target using: 11 12```bash 13idf.py set-target <chip_name> 14``` 15 16To test this demo, you can run the [ble50_security_server_demo](../ble50_security_server), which starts advertising and can be connected to 17this demo automatically. 18 19There are some important points for this demo: 201. `esp_ble_gap_set_security_param` should be used to set the security parameters in the initial stage; 212. `esp_ble_set_encryption` should be used to start encryption with peer device. If the peer device initiates the encryption, 22 `esp_ble_gap_security_rsp` should be used to send security response to the peer device when `ESP_GAP_BLE_SEC_REQ_EVT` is received. 233. The `gatt_security_client_demo` will receive a `ESP_GAP_BLE_AUTH_CMPL_EVT` once the encryption procedure has completed. 24 25Please, check this [tutorial](tutorial/ble50_security_client_Example_Walkthrough.md) for more information about this example. 26 27### Hardware Required 28 29* A development board with ESP32-C3 SoC, ESP32-S3 SoC and BT5.0 supported chip (e.g., ESP32-C3-DevKitC-1 etc.) 30* A USB cable for Power supply and programming 31 32See [Development Boards](https://www.espressif.com/en/products/devkits) for more information about it. 33 34### Build and Flash 35 36Run `idf.py -p PORT flash monitor` to build, flash and monitor the project. 37 38(To exit the serial monitor, type ``Ctrl-]``.) 39 40See the [Getting Started Guide](https://idf.espressif.com/) for full steps to configure and use ESP-IDF to build projects. 41 42## Example Output 43 44``` 45I (364) BTDM_INIT: BT controller compile version [3e61eea] 46I (374) coexist: coexist rom version 8459080 47I (374) phy_init: phy_version 500,985899c,Apr 19 2021,16:05:08 48I (494) system_api: Base MAC address is not set 49I (494) system_api: read default base MAC address from EFUSE 50I (494) BTDM_INIT: Bluetooth MAC: 7c:df:a1:40:01:dd 51 52I (514) SEC_GATTC_DEMO: EVT 0, gattc if 3 53I (514) SEC_GATTC_DEMO: REG_EVT 54I (524) SEC_GATTC_DEMO: Scan start success 55I (2654) SEC_GATTC_DEMO: legacy adv, adv type 0x13 data len 31 56I (2654) SEC_GATTC_DEMO: legacy adv, adv type 0x1b data len 21 57I (3624) SEC_GATTC_DEMO: legacy adv, adv type 0x13 data len 31 58I (3624) SEC_GATTC_DEMO: legacy adv, adv type 0x1b data len 21 59I (4594) SEC_GATTC_DEMO: legacy adv, adv type 0x13 data len 31 60I (4594) SEC_GATTC_DEMO: legacy adv, adv type 0x1b data len 21 61I (5514) SEC_GATTC_DEMO: legacy adv, adv type 0x13 data len 31 62I (5524) SEC_GATTC_DEMO: legacy adv, adv type 0x1b data len 0 63I (7494) SEC_GATTC_DEMO: legacy adv, adv type 0x13 data len 31 64I (7494) SEC_GATTC_DEMO: legacy adv, adv type 0x1b data len 21 65I (8614) SEC_GATTC_DEMO: legacy adv, adv type 0x13 data len 31 66I (8614) SEC_GATTC_DEMO: legacy adv, adv type 0x1b data len 0 67 68``` 69 70## Troubleshooting 71 72For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon. 73
