Supported Targets	ESP32	ESP32-C2	ESP32-C3	ESP32-C5	ESP32-C6	ESP32-C61	ESP32-H2	ESP32-S3	ESP32-P4	ESP32-H2

ESP-IDF BLE Compatibility Test Example

This example is to test the Bluetooth compatibility and mobile phones.

How to Use Example

This example has been modified to work with ESP-Hosted. The original ESP-IDF example is at [ https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/bluedroid/ble/ble_compatibility_test ].

This example is able to run on the ESP32-P4 Dev Board, acting as the BT Host, connected to a ESP32 co-processor via the GPIO header, using SPI FD (full duplex) as Hosted HCI transport. The ESP32-P4 acts as the BT Controller. The following GPIO settings were used:

SPI Function	ESP32 GPIO	ESP32-P4 GPIO
MOSI	13	4
MISO	12	5
CLK	14	26
CS	15	6
Handshake	26	20
Data Ready	4	36
Reset	-1	2

Note

SPI Mode 2 was used on both the ESP32-P4 and ESP32.

Users are free to choose which supported ESP-Hosted transport to use. See the main ESP-Hosted README for a list of supported transports.

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

Bash

idf.py set-target <chip_name>

Test Scenario

ESP32-P4-Function-EV-Board connected to a ESP32 via the GPIO header
Test case
Test APK: LightBlue V2.0.5

Configure the project

On the ESP32-P4 Dev Board, run idf.py menuconfig.

Check and enable Classic Bluetooth and Classic BT HID Device under Component config --> Bluetooth --> Bluedroid Options
Ensure that Component config --> Bluetooth --> Controller is Disabled.
Under Component config --> ESP-Hosted config:
- Configure ESP-Hosted to use SPI Full-duplex as the transport
- Set the Slave chipset used as ESP32
- Check and enable Bluetooth Support
- Configure the GPIOs used for SPI FD on both the ESP32-P4 and ESP32, following the table above

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.