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1、ble.c 新增 BLE 5.0 2M PHY 请求（连接时自动协商，不支持则回退 1M）； 2、ble.c 新增 PHY 更新事件日志（tx_phy/rx_phy: 1=1M, 2=2M, 3=Coded）； 3、ble.c 断连时清理未完成的图片传输状态，释放 img_data/filepath/file_img 防止内存泄漏； 4、sdkconfig 启用 BLE 5.0 全部子特性 + 保留 BLE 4.2 兼容； 5、update_ui_ImgBle 返回类型 void → bool，滑动时自动跳过解码失败的无效图片； Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 | Linux |
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Hello World Example
Starts a FreeRTOS task to print "Hello World".
(See the README.md file in the upper level 'examples' directory for more information about examples.)
How to use example
Follow detailed instructions provided specifically for this example.
Select the instructions depending on Espressif chip installed on your development board:
Example folder contents
The project hello_world contains one source file in C language hello_world_main.c. The file is located in folder main.
ESP-IDF projects are built using CMake. The project build configuration is contained in CMakeLists.txt files that provide set of directives and instructions describing the project's source files and targets (executable, library, or both).
Below is short explanation of remaining files in the project folder.
├── CMakeLists.txt
├── pytest_hello_world.py Python script used for automated testing
├── main
│ ├── CMakeLists.txt
│ └── hello_world_main.c
└── README.md This is the file you are currently reading
For more information on structure and contents of ESP-IDF projects, please refer to Section Build System of the ESP-IDF Programming Guide.
Troubleshooting
-
Program upload failure
- Hardware connection is not correct: run
idf.py -p PORT monitor, and reboot your board to see if there are any output logs. - The baud rate for downloading is too high: lower your baud rate in the
menuconfigmenu, and try again.
- Hardware connection is not correct: run
Technical support and feedback
Please use the following feedback channels:
- For technical queries, go to the esp32.com forum
- For a feature request or bug report, create a GitHub issue
We will get back to you as soon as possible.