This example performs advertises on different PHY, accepts connection from client app and gets disconnected. It then advertises on different PHY and does the same.
* Make sure to run `python -m pip install --user -r $IDF_PATH/requirements.txt -r $IDF_PATH/tools/ble/requirements.txt` to install the dependency packages needed.
* Currently this Python utility is only supported on Linux (BLE communication is via BLuez + DBus).
## How to Use Example
Before project configuration and build, be sure to set the correct chip target using:
```bash
idf.py set-target <chip_name>
```
### Hardware Required
* A development board with ESP32-C3 SoC (e.g., ESP-WROVER-KIT, etc.)
* A USB cable for Power supply and programming
See [Development Boards](https://www.espressif.com/en/products/devkits) for more information about it.
### Configure the Project
Open the project configuration menu:
```bash
idf.py menuconfig
```
### 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](https://idf.espressif.com/) for full steps to configure and use ESP-IDF to build projects.
## Example Output
This is the console output on successful connection:
```
I (322) BTDM_INIT: BT controller compile version [05195c9]
I (322) phy_init: phy_version 912,d001756,Jun 2 2022,16:28:07
I (362) system_api: Base MAC address is not set
I (362) system_api: read default base MAC address from EFUSE
I (362) BTDM_INIT: Bluetooth MAC: 84:f7:03:05:a5:f6
I (362) NimBLE_BLE_PHY_PRPH: BLE Host Task Started
I (372) NimBLE: Device Address:
I (372) NimBLE: 84:f7:03:05:a5:f6
I (382) NimBLE:
I (382) uart: queue free spaces: 8
I (4782) NimBLE: connection established; status=0
I (4782) NimBLE: handle=1 our_ota_addr_type=0 our_ota_addr=
I (4782) NimBLE: 84:f7:03:05:a5:f6
I (4782) NimBLE: our_id_addr_type=0 our_id_addr=
I (4792) NimBLE: 84:f7:03:05:a5:f6
I (4792) NimBLE: peer_ota_addr_type=0 peer_ota_addr=
I (4802) NimBLE: 84:f7:03:08:4d:8e
I (4802) NimBLE: peer_id_addr_type=0 peer_id_addr=
I (4812) NimBLE: 84:f7:03:08:4d:8e
I (4812) NimBLE: conn_itvl=40 conn_latency=0 supervision_timeout=256 encrypted=0 authenticated=0 bonded=0
I (4822) NimBLE:
I (4822) NimBLE: advertise complete; reason=0
I (4832) NimBLE: LE PHY Update completed; status=0 conn_handle=1 tx_phy=1 rx_phy = 0
I (5322) NimBLE: LE PHY Update completed; status=0 conn_handle=1 tx_phy=2 rx_phy = 2
I (5732) NimBLE: disconnect; reason=531
I (5732) NimBLE: handle=1 our_ota_addr_type=0 our_ota_addr=
I (5732) NimBLE: 84:f7:03:05:a5:f6
I (5732) NimBLE: our_id_addr_type=0 our_id_addr=
I (5742) NimBLE: 84:f7:03:05:a5:f6
I (5742) NimBLE: peer_ota_addr_type=0 peer_ota_addr=
I (5752) NimBLE: 84:f7:03:08:4d:8e
I (5752) NimBLE: peer_id_addr_type=0 peer_id_addr=
I (5762) NimBLE: 84:f7:03:08:4d:8e
I (5762) NimBLE: conn_itvl=40 conn_latency=0 supervision_timeout=256 encrypted=0 authenticated=0 bonded=0
I (5772) NimBLE:
I (5772) NimBLE: Default LE PHY set successfully
I (5822) NimBLE: connection established; status=0
I (5822) NimBLE: handle=1 our_ota_addr_type=0 our_ota_addr=
I (5822) NimBLE: 84:f7:03:05:a5:f6
I (5822) NimBLE: our_id_addr_type=0 our_id_addr=
I (5832) NimBLE: 84:f7:03:05:a5:f6
I (5832) NimBLE: peer_ota_addr_type=0 peer_ota_addr=
I (5842) NimBLE: 84:f7:03:08:4d:8e
I (5842) NimBLE: peer_id_addr_type=0 peer_id_addr=
I (5852) NimBLE: 84:f7:03:08:4d:8e
I (5852) NimBLE: conn_itvl=40 conn_latency=0 supervision_timeout=256 encrypted=0 authenticated=0 bonded=0
I (5862) NimBLE:
I (5862) NimBLE: advertise complete; reason=0
I (5872) NimBLE: LE PHY Update completed; status=0 conn_handle=1 tx_phy=1 rx_phy = 0
I (6322) NimBLE: LE PHY Update completed; status=0 conn_handle=1 tx_phy=2 rx_phy = 2
I (6782) NimBLE: disconnect; reason=531
I (6782) NimBLE: handle=1 our_ota_addr_type=0 our_ota_addr=
I (6782) NimBLE: 84:f7:03:05:a5:f6
I (6782) NimBLE: our_id_addr_type=0 our_id_addr=
I (6792) NimBLE: 84:f7:03:05:a5:f6
I (6792) NimBLE: peer_ota_addr_type=0 peer_ota_addr=
I (6802) NimBLE: 84:f7:03:08:4d:8e
I (6802) NimBLE: peer_id_addr_type=0 peer_id_addr=
I (6812) NimBLE: 84:f7:03:08:4d:8e
I (6812) NimBLE: conn_itvl=40 conn_latency=0 supervision_timeout=256 encrypted=0 authenticated=0 bonded=0
I (6822) NimBLE:
I (6822) NimBLE: Default LE PHY set successfully
I (6872) NimBLE: connection established; status=0
I (6872) NimBLE: handle=1 our_ota_addr_type=0 our_ota_addr=
I (6872) NimBLE: 84:f7:03:05:a5:f6
I (6872) NimBLE: our_id_addr_type=0 our_id_addr=
I (6882) NimBLE: 84:f7:03:05:a5:f6
I (6882) NimBLE: peer_ota_addr_type=0 peer_ota_addr=
I (6892) NimBLE: 84:f7:03:08:4d:8e
I (6892) NimBLE: peer_id_addr_type=0 peer_id_addr=
I (6902) NimBLE: 84:f7:03:08:4d:8e
I (6902) NimBLE: conn_itvl=40 conn_latency=0 supervision_timeout=256 encrypted=0 authenticated=0 bonded=0
I (6912) NimBLE:
I (6912) NimBLE: advertise complete; reason=0
I (6922) NimBLE: LE PHY Update completed; status=0 conn_handle=1 tx_phy=1 rx_phy = 0
I (7372) NimBLE: LE PHY Update completed; status=0 conn_handle=1 tx_phy=3 rx_phy = 3
I (7832) NimBLE: disconnect; reason=531
I (7832) NimBLE: handle=1 our_ota_addr_type=0 our_ota_addr=
I (7832) NimBLE: 84:f7:03:05:a5:f6
I (7832) NimBLE: our_id_addr_type=0 our_id_addr=
I (7842) NimBLE: 84:f7:03:05:a5:f6
I (7842) NimBLE: peer_ota_addr_type=0 peer_ota_addr=
I (7852) NimBLE: 84:f7:03:08:4d:8e
I (7852) NimBLE: peer_id_addr_type=0 peer_id_addr=
I (7862) NimBLE: 84:f7:03:08:4d:8e
I (7862) NimBLE: conn_itvl=40 conn_latency=0 supervision_timeout=256 encrypted=0 authenticated=0 bonded=0
I (7872) NimBLE:
```
## Troubleshooting
For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.