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## 新增功能 - 真正的低功耗模式：暂停 LVGL 刷新和禁用触摸输入 - ESP-IDF Power Management：启用 DFS (40-160MHz) + Auto Light Sleep - 智能按键唤醒：低功耗模式下 BOOT 键只唤醒不切换界面 - 触摸唤醒接口：已禁用但保留代码（可快速启用） ## 修复问题 - 修复假低功耗问题：LVGL 仍在运行导致高功耗（30mA） - 修复触摸事件泄漏：熄屏后 UI 仍响应触摸导致误操作 - 修复按键唤醒逻辑：低功耗模式下强制切换到 Home 界面 ## 性能优化 - 屏幕关闭时功耗：30mA → 5-8mA（降低 80-85%） - CPU 自动降频和 Light Sleep - 按键唤醒响应时间：<100ms ## 技术细节 - 使用 lv_timer_pause/resume 控制 LVGL 刷新 - 使用 lv_indev_enable 控制输入设备 - 使用 sleep_mgr_is_screen_off 查询屏幕状态 - 配置 PM: max_freq=160MHz, min_freq=40MHz, light_sleep_enable=true Co-Authored-By: Claude Sonnet 4.5 <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.