@@ -109,245 +109,56 @@ You need to understand the following basic concepts related to OpenHarmony:
A module is a reusable software binary unit that contains source code, configuration files, resource files, and build scripts. A module can be built independently, integrated in binary mode, and then tested independently.
The following table describes the subsystems of OpenHarmony. For details about the readme files of these subsystems, see [https://gitee.com/openharmony/docs/tree/master/en/readme](https://gitee.com/openharmony/docs/tree/master/en/readme).
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p34626584118"><aname="p34626584118"></a><aname="p34626584118"></a>Supports small-sized LiteOS kernels that provide high performance and low power consumption for embedded devices and devices with limited resources, and supports Linux kernels that are applicable to the standard system.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p1046615111118"><aname="p1046615111118"></a><aname="p1046615111118"></a>Provides APIs for synchronizing local JS files.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p15912684317"><aname="p15912684317"></a><aname="p15912684317"></a>Consists of user interface (UI) components, layout, animator, font, input event, window management, and rendering and drawing modules. It is an application framework that can be built on the LiteOS to develop OpenHarmony applications for Internet of Things (IoT) devices with limited hardware resources or on the standard OS to develop OpenHarmony applications for standard- and large-system devices (for example, tablet and lite smart devices).</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p849919919515"><aname="p849919919515"></a><aname="p849919919515"></a>Constructed using the C object-oriented programming (OOP) language. It provides a unified driver platform and is compatible with different kernels by means of platform decoupling and kernel decoupling. This unified driver platform is designed to provide a more precise and efficient development environment, where you develop a driver that can be deployed on different systems supporting Hardware Driver Foundation (HDF).</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p1534121801513"><aname="p1534121801513"></a><aname="p1534121801513"></a>Provides the following functions: restarting the system, managing running locks, managing and querying the system power status, querying and reporting the charging and battery status, and turning on/off the device screen, including adjusting the screen brightness.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p114999919515"><aname="p114999919515"></a><aname="p114999919515"></a>Contains sensors and misc devices. A sensor is a device to detect events or changes in an environment and send messages about the events or changes to another electronic device. Misc devices, including vibrators and LED lights, are used to send signals externally. You can call APIs to control the vibration of vibrators and lighting-on and lighting-off of LED lights.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p13832172015162"><aname="p13832172015162"></a><aname="p13832172015162"></a>OpenHarmony provides a Natural User Interface (NUI) for you to interact with your users. Unlike conventional categorization of input methods, OpenHarmony combines input methods of different dimensions into multimodal inputs, so you can easily arm your app with multi-dimensional, natural interaction features by using the application framework and system built-in UI components or APIs. Specifically, OpenHarmony currently supports traditional input methods such as key and touch inputs.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p54461340151820"><aname="p54461340151820"></a><aname="p54461340151820"></a>Starts the OS middle layer between the time the kernel is started and the time apps are started. In addition, you can query and modify system attributes and restore factory settings.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p887484183"><aname="p887484183"></a><aname="p887484183"></a>Supports over the air (OTA) update of OpenHarmony devices.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p2772313127"><aname="p2772313127"></a><aname="p2772313127"></a>Provides interconnection with vendors' cloud account apps on the device side, and query and update of the cloud account login status.</p>
<trid="row1598389185315"><tdclass="cellrowborder"align="left"valign="top"width="11.111111111111112%"headers="mcps1.1.4.1.1 "><pid="p11473102882017"><aname="p11473102882017"></a><aname="p11473102882017"></a>Compilation and Building</p>
</td>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p22956349202"><aname="p22956349202"></a><aname="p22956349202"></a>Provides a compilation and building framework based on Generate Ninja (GN) and Ninja.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p1850179125115"><aname="p1850179125115"></a><aname="p1850179125115"></a>The test-driven development mode is used during the development process. You can develop new cases or modify existing cases to test new or enhanced system features. The test helps you develop high-quality code in the development phase.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p2030983518561"><aname="p2030983518561"></a><aname="p2030983518561"></a>Provides local data management and distributed data management:</p>
<aname="ul2727156145217"></a><aname="ul2727156145217"></a><ulid="ul2727156145217"><li>Local app data management for lightweight preference databases and relational databases</li><li>Distributed data service to provide apps with the capability to store data in the databases of different devices</li></ul>
<trid="row198318945311"><tdclass="cellrowborder"align="left"valign="top"width="11.111111111111112%"headers="mcps1.1.4.1.1 "><pid="p14473132812018"><aname="p14473132812018"></a><aname="p14473132812018"></a>Programming Language Runtime</p>
</td>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p17753537218"><aname="p17753537218"></a><aname="p17753537218"></a>Provides the compilation and execution environment for programs developed with JavaScript or C/C++, basic libraries that support the runtime, and the runtime-associated APIs, compilers, and auxiliary tools.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p55320348170"><aname="p55320348170"></a><aname="p55320348170"></a>Starts, registers, queries, and manages system services.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p18885204913282"><aname="p18885204913282"></a><aname="p18885204913282"></a>OpenHarmony UI development framework that supports web-development-like paradigm.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p17895171152211"><aname="p17895171152211"></a><aname="p17895171152211"></a>Provides easy-to-use APIs for developing multimedia components such as audio, video, and camera, and enables apps to use multimedia resources of the system.</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p1328485917223"><aname="p1328485917223"></a><aname="p1328485917223"></a>Provides the common event management capabilities that allow apps to subscribe to, unsubscribe from, publish, and receive common events (such as screen-on/off events and USB device attachment/detachment events).</p>
<tdclass="cellrowborder"align="left"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p8502149175110"><aname="p8502149175110"></a><aname="p8502149175110"></a>Provides the function of setting the time.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p19521141152212"><aname="p19521141152212"></a><aname="p19521141152212"></a>Provides basic communication capabilities of the cellular network, such as SIM cards, network search, cellular data, cellular calls, SMS, and MMS, as well as easy-to-use APIs for you to manage multiple types of calls and data network connections.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p21941533132218"><aname="p21941533132218"></a><aname="p21941533132218"></a>Stores basic OpenHarmony components, which can be used by OpenHarmony subsystems and upper-layer apps.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p15701144517139"><aname="p15701144517139"></a><aname="p15701144517139"></a>Provides a performance profiler platform for you to analyze system issues such as memory and performance, including hdc used for device debugging, APIs for performance tracing, and a performance profiler framework.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p17499153862420"><aname="p17499153862420"></a><aname="p17499153862420"></a>Provides cross-process or cross-device communication capabilities for the OpenHarmony system and consists of the DSoftBus and IPC modules. The DSoftBus module enables distributed communication between near-field devices and provides device discovery, connection, networking, and data transmission functions, regardless of the communication mode. The IPC module enables communication between processes on a device or across devices.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p2334113611248"><aname="p2334113611248"></a><aname="p2334113611248"></a>Provides a set of OpenHarmony compatibility test suites, including the currently supported application compatibility test suite (ACTS) and the device compatibility test suite (DCTS) that will be supported in the future.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p91717327249"><aname="p91717327249"></a><aname="p91717327249"></a>Provides system apps that are applicable to the OpenHarmony standard system, such as Launcher, SystemUI, and Settings. It also provides specific examples for you to build standard-system apps, which can be installed on all devices running the standard system.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p8578828122413"><aname="p8578828122413"></a><aname="p8578828122413"></a>Provides non-functional capabilities of OpenHarmony. It provides a logging system, app and system event logging APIs, the event log subscription service, and fault information generation and collection capabilities.</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p41871252102515"><aname="p41871252102515"></a><aname="p41871252102515"></a>If OpenHarmony devices and apps need to be used globally, they must meet the requirements of users in different regions on languages and cultures. The Globalization subsystem provides multi-language and multi-cultural capabilities for global use, including resource management and internationalization (i18n).</p>
<tdclass="cellrowborder"valign="top"width="80.80808080808082%"headers="mcps1.1.4.1.2 "><pid="p2871134913255"><aname="p2871134913255"></a><aname="p2871134913255"></a>Provides system, data, and app security capabilities to protect system and user data of OpenHarmony. Its functions include app integrity verification, app permission management, device authentication, and key management.</p>
| Kernel| Supports small-sized LiteOS kernels that provide high performance and low power consumption for embedded devices and devices with limited resources, and supports Linux kernels that are applicable to the standard system.| Small system</br> Standard system |
| DFileSystem | Provides APIs for synchronizing local JS files. | Standard system |
| Graphics | Consists of user interface (UI) components, layout, animator, font, input event, window management, and rendering and drawing modules. It is an application framework that can be built on the LiteOS to develop OpenHarmony applications for Internet of Things (IoT) devices with limited hardware resources or on the standard OS to develop OpenHarmony applications for standard- and large-system devices (for example, tablet and lite smart devices). | All systems |
| Driver | Constructed using the C object-oriented programming (OOP) language. It provides a unified driver platform and is compatible with different kernels by means of platform decoupling and kernel decoupling. This unified driver platform is designed to provide a more precise and efficient development environment, where you develop a driver that can be deployed on different systems supporting Hardware Driver Foundation (HDF). | All systems |
| Power Management | Provides the following functions: restarting the system, managing running locks, managing and querying the system power status, querying and reporting the charging and battery status, and turning on/off the device screen, including adjusting the screen brightness. | Standard system |
| Pan-sensor | Contains sensors and misc devices. A sensor is a device to detect events or changes in an environment and send messages about the events or changes to another electronic device. Misc devices, including vibrators and LED lights, are used to send signals externally. You can call APIs to control the vibration of vibrators and lighting-on and lighting-off of LED lights. | Small system |
| Multimodal Input | OpenHarmony provides a Natural User Interface (NUI) for you to interact with your users. Unlike conventional categorization of input methods, OpenHarmony combines input methods of different dimensions into multimodal inputs, so you can easily arm your app with multi-dimensional, natural interaction features by using the application framework and system built-in UI components or APIs. Specifically, OpenHarmony currently supports traditional input methods such as key and touch inputs. | Standard system |
| Startup | Starts the OS middle layer between the time the kernel is started and the time apps are started. In addition, you can query and modify system attributes and restore factory settings. | All systems |
| Update | Supports over the air (OTA) update of OpenHarmony devices. | Standard system |
| Account | Provides interconnection with vendors' cloud account apps on the device side, and query and update of the cloud account login status. | Standard system |
| Compilation and Building | Provides a compilation and building framework based on Generate Ninja (GN) and Ninja. | All systems |
| Test | The test-driven development mode is used during the development process. You can develop new cases or modify existing cases to test new or enhanced system features. The test helps you develop high-quality code in the development phase. | All systems |
| Data Management | Provides local data management and distributed data management:<\br> - Local app data management for lightweight preference databases and relational databases<\br> - Distributed data service to provide apps with the capability to store data in the databases of different devices | Standard system |
| Programming Language Runtime | Provides the compilation and execution environment for programs developed with JavaScript or C/C++, basic libraries that support the runtime, and the runtime-associated APIs, compilers, and auxiliary tools. | All systems |
| Distributed Scheduler | Starts, registers, queries, and manages system services. | All systems |
| JS UI framework | OpenHarmony UI development framework that supports web-development-like paradigm. | All systems |
| Multimedia | Provides easy-to-use APIs for developing multimedia components such as audio, video, and camera, and enables apps to use multimedia resources of the system. | All systems |
| Event Notification | Provides the common event management capabilities that allow apps to subscribe to, unsubscribe from, publish, and receive common events (such as screen-on/off events and USB device attachment/detachment events). | Standard system |
| Misc Services | Provides the function of setting the time. | Standard system |
| Bundle management | Provides bundle installation, uninstallation, update, and query capabilities. | All systems |
| Telephony | Provides basic communication capabilities of the cellular network, such as SIM cards, network search, cellular data, cellular calls, SMS, and MMS, as well as easy-to-use APIs for you to manage multiple types of calls and data network connections. | Standard system |
| Utils | Stores basic OpenHarmony components, which can be used by OpenHarmony subsystems and upper-layer apps. | All systems |
| Development Tools | Provides a performance profiler platform for you to analyze system issues such as memory and performance, including hdc used for device debugging, APIs for performance tracing, and a performance profiler framework. | Standard system |
| DSoftBus | Provides cross-process or cross-device communication capabilities for the OpenHarmony system and consists of the DSoftBus and IPC modules. The DSoftBus module enables distributed communication between near-field devices and provides device discovery, connection, networking, and data transmission functions, regardless of the communication mode. The IPC module enables communication between processes on a device or across devices. | All systems |
| XTS | Provides a set of OpenHarmony compatibility test suites, including the currently supported application compatibility test suite (ACTS) and the device compatibility test suite (DCTS) that will be supported in the future. | All systems |
| System Apps | Provides system apps that are applicable to the OpenHarmony standard system, such as Launcher, SystemUI, and Settings. It also provides specific examples for you to build standard-system apps, which can be installed on all devices running the standard system. | Standard system |
| DFX | Provides non-functional capabilities of OpenHarmony. It provides a logging system, app and system event logging APIs, the event log subscription service, and fault information generation and collection capabilities. | All systems |
| Globalization | If OpenHarmony devices and apps need to be used globally, they must meet the requirements of users in different regions on languages and cultures. The Globalization subsystem provides multi-language and multi-cultural capabilities for global use, including resource management and internationalization (i18n). | All systems |
| Security | Provides system, data, and app security capabilities to protect system and user data of OpenHarmony. Its functions include app integrity verification, app permission management, device authentication, and key management. | All systems |
## Supported Development Boards<a name="section25831825174123"></a>
Currently, OpenHarmony supports the development boards listed in the following table.
| System Type| Board Model| Chip Model| Function Description| Application Scenario| Code Repository| Daily Build|
| Standard system| Hi3516DV300 | Hi3516DV300 | Hi3516D V300 is a the next-generation system on chip (SoC) for smart HD IP cameras. It integrates the next-generation image signal processor (ISP), H.265 video compression encoder, and high-performance NNIE engine, and delivers exceptional performance in terms of low bit rate, high image quality, intelligent processing and analysis, and low power consumption.| Devices with screens, such as refrigerators and head units.| [device_soc_hisilicon](https://gitee.com/openharmony/device_soc_hisilicon)<br>[device_board_hisilicon](https://gitee.com/openharmony/device_board_hisilicon)<br>[vendor_hisilicon](https://gitee.com/openharmony/vendor_hisilicon) | http://ci.openharmony.cn/dailybuilds|
| Standard system| Runhe HH-SCDAYU200| RK3568 | Bolstered by the Rockchip RK3568, the HH-SCDAYU200 development board integrates a dual-core GPU and high-efficiency NPU. Its quad-core 64-bit Cortex-A55 processor uses the advanced 22 nm fabrication process and is clocked at up to 2.0 GHz. The board is packed with Bluetooth, WiFi, audio, video, and camera features, with a wide range of expansion ports as well as video input and output ports. It comes with dual GE auto-sensing RJ45 ports, so it can be used in multi-connectivity products, such as network video recorders (NVRs) and industrial gateways.| Video and audio entertainment, smart travel, and smart home, such as kitchen hoods, ovens, and treadmills.| [device_soc_rockchip](https://gitee.com/openharmony/device_soc_rockchip)<br>[device_board_hihope](https://gitee.com/openharmony/device_board_hihope)<br>[vendor_hihope](https://gitee.com/openharmony/vendor_hihope) |
| Lightweight| Goodix GR5515-STARTER-KIT| GR5515 | The GR5515-STARTER-KIT development board is a Bluetooth 5.1-capable single-mode Bluetooth low energy (BLE) SoC and comes with multifunctional keys and LED indicators.| Smart hardware, such as watches, wristbands, and price tags.| [device_soc_goodix](https://gitee.com/openharmony/device_soc_goodix)<br>[device_board_goodix](https://gitee.com/openharmony/device_board_goodix)|
| Lightweight| Langguo LANGO200| ASR582X | The LANGO200 IoT development board integrates the high-performance WiFi-BLE dual-mode chip ASR5822, external storage chip, voice playing chip, and analog-to-digital converter. It supports common peripheral interfaces like SPI, and can be connected to an external OLED display and infrared remote control.| Connection modules for smart home products.| [device_soc_asrmicro](https://gitee.com/openharmony/device_soc_asrmicro)<br>[device_board_lango](https://gitee.com/openharmony/device_board_lango)<br>[vendor_asrmicro](https://gitee.com/openharmony/vendor_asrmicro)|
| Lightweight| Fn-Link multi-modal V200ZR| BES2600 | The multi-modal V200Z-R development board is a high-performance, multi-functional, and cost-effective AIoT SoC powered by the BES2600WM chip of Bestechnic. It integrates a quad-core ARM processor with a frequency of up to 1 GHz as well as dual-mode WiFi and dual-mode Bluetooth. The board supports the 802.11 a/b/g/n/ and BT/BLE 5.2 standards. It is able to accommodate RAM of up to 42 MB and flash memory of up to 32 MB, and supports the MIPI display serial interface (DSI) and camera serial interface (CSI). It is applicable to various AIoT multi-modal VUI and GUI interaction scenarios.| Smart hardware with screens, such as speakers and watches.| [device_soc_bestechnic](https://gitee.com/openharmony/device_soc_bestechnic)<br>[device_board_fnlink](https://gitee.com/openharmony/device_board_fnlink)<br>[vendor_bestechnic](https://gitee.com/openharmony/vendor_bestechnic) |
| Lightweight| BearPi-HM_Nano| Hi3861 | The BearPi-HM_Nano development board is specially designed for OpenHarmony. It is equipped with the highly integrated 2.4 GHz WiFi SoC chip Hi3861, near field communication (NFC) circuits, and standard E53 interfaces, which can be used to connect to smart humidifiers, smart desk lamps, smart security facilities, and intelligent smoke detectors.| Connection devices like smart street lamps, smart logistics sensors, and human body infrared sensors.| [device_soc_hisilicon](https://gitee.com/openharmony/device_soc_hisilicon)<br>[device_board_bearpi](https://gitee.com/openharmony/device_board_bearpi)<br>[vendor_bearpi](https://gitee.com/openharmony/vendor_bearpi)|
| System Type| Board Model| Chip Model| Function Description| Application Scenario| Code Repository and Daily Build|
| Standard system| Hi3516DV300 | Hi3516DV300 | Hi3516D V300 is a the next-generation system on chip (SoC) for smart HD IP cameras. It integrates the next-generation image signal processor (ISP), H.265 video compression encoder, and high-performance NNIE engine, and delivers exceptional performance in terms of low bit rate, high image quality, intelligent processing and analysis, and low power consumption.| Devices with screens, such as refrigerators and head units.| Code repository:<br/>[device_soc_hisilicon](https://gitee.com/openharmony/device_soc_hisilicon)<br/>[device_board_hisilicon](https://gitee.com/openharmony/device_board_hisilicon)<br/>[vendor_hisilicon](https://gitee.com/openharmony/vendor_hisilicon)<br/>Daily build path:<br/>http://ci.openharmony.cn/dailybuilds |
| Standard system| Runhe HH-SCDAYU200| RK3568 | Bolstered by the Rockchip RK3568, the HH-SCDAYU200 development board integrates a dual-core GPU and high-efficiency NPU. Its quad-core 64-bit Cortex-A55 processor uses the advanced 22 nm fabrication process and is clocked at up to 2.0 GHz. The board is packed with Bluetooth, WiFi, audio, video, and camera features, with a wide range of expansion ports as well as video input and output ports. It comes with dual GE auto-sensing RJ45 ports, so it can be used in multi-connectivity products, such as network video recorders (NVRs) and industrial gateways.| Video and audio entertainment, smart travel, and smart home, such as kitchen hoods, ovens, and treadmills.| Code repository:<br/>[device_soc_rockchip](https://gitee.com/openharmony/device_soc_rockchip)<br/>[device_board_hihope](https://gitee.com/openharmony/device_board_hihope)<br/>[vendor_hihope](https://gitee.com/openharmony/vendor_hihope)<br/>Daily build path:<br/>http://ci.openharmony.cn/dailybuilds |
| Lightweight| Goodix GR5515-STARTER-KIT| GR5515 | The GR5515-STARTER-KIT development board is a Bluetooth 5.1-capable single-mode Bluetooth low energy (BLE) SoC and comes with multifunctional keys and LED indicators.| Smart hardware, such as watches, wristbands, and price tags.| Code repository:<br/>[device_soc_goodix](https://gitee.com/openharmony/device_soc_goodix)<br/>[device_board_goodix](https://gitee.com/openharmony/device_board_goodix)<br/>Daily build path:<br/>http://ci.openharmony.cn/dailybuilds|
| Lightweight| Langguo LANGO200| ASR582X | The LANGO200 IoT development board integrates the high-performance WiFi-BLE dual-mode chip ASR5822, external storage chip, voice playing chip, and analog-to-digital converter. It supports common peripheral interfaces like SPI, and can be connected to an external OLED display and infrared remote control.| Connection modules for smart home products.| Code repository:<br/>[device_soc_asrmicro](https://gitee.com/openharmony/device_soc_asrmicro)<br/>[device_board_lango](https://gitee.com/openharmony/device_board_lango)<br/>[vendor_asrmicro](https://gitee.com/openharmony/vendor_asrmicro)<br/>Daily build path:<br/>http://ci.openharmony.cn/dailybuilds|
| Lightweight| Fn-Link multi-modal V200ZR| BES2600 | The multi-modal V200Z-R development board is a high-performance, multi-functional, and cost-effective AIoT SoC powered by the BES2600WM chip of Bestechnic. It integrates a quad-core ARM processor with a frequency of up to 1 GHz as well as dual-mode WiFi and dual-mode Bluetooth. The board supports the 802.11 a/b/g/n/ and BT/BLE 5.2 standards. It is able to accommodate RAM of up to 42 MB and flash memory of up to 32 MB, and supports the MIPI display serial interface (DSI) and camera serial interface (CSI). It is applicable to various AIoT multi-modal VUI and GUI interaction scenarios.| Smart hardware with screens, such as speakers and watches.| Code repository:<br/>[device_soc_bestechnic](https://gitee.com/openharmony/device_soc_bestechnic)<br/>[device_board_fnlink](https://gitee.com/openharmony/device_board_fnlink)<br/>[vendor_bestechnic](https://gitee.com/openharmony/vendor_bestechnic)<br/>Daily build path:<br/>http://ci.openharmony.cn/dailybuilds |
| Lightweight| BearPi-HM_Nano| Hi3861 | The BearPi-HM_Nano development board is specially designed for OpenHarmony. It is equipped with the highly integrated 2.4 GHz WiFi SoC chip Hi3861, near field communication (NFC) circuits, and standard E53 interfaces, which can be used to connect to smart humidifiers, smart desk lamps, smart security facilities, and intelligent smoke detectors.| Connection devices like smart street lamps, smart logistics sensors, and human body infrared sensors.| Code repository:<br/>[device_soc_hisilicon](https://gitee.com/openharmony/device_soc_hisilicon)<br/>[device_board_bearpi](https://gitee.com/openharmony/device_board_bearpi)<br/>[vendor_bearpi](https://gitee.com/openharmony/vendor_bearpi)<br/>Daily build path:<br/>http://ci.openharmony.cn/dailybuilds|
@@ -372,7 +183,7 @@ For details about how to obtain the source code of OpenHarmony, see [Source Cod
## How to Participate<a name="section19611528174215"></a>
For details about how to join in the OpenHarmony community, see [OpenHarmony Community](https://gitee.com/openharmony/community/blob/master/README.md).
For details about how to join in the OpenHarmony community, see [OpenHarmony Community](https://gitee.com/openharmony/community/blob/master/README-EN.md).
For details about how to contribute, see [How to Contribute](contribute/how-to-contribute.md).
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@@ -380,7 +191,7 @@ For details about how to contribute, see [How to Contribute](contribute/how-to-
OpenHarmony complies with Apache License Version 2.0. For details, see the LICENSE in each repository.
OpenHarmony uses third-party open-source software and licenses. For details, see [Third-Party Open-Source Software](https://gitee.com/openharmony/docs/blob/master/en/contribute/third-party-open-source-software-and-license-notice.md).
OpenHarmony uses third-party open-source software and licenses. For details, see [Third-Party Open-Source Software](contribute/third-party-open-source-software-and-license-notice.md).
