LiteOS

LiteOS
DeveloperHuawei Technologies Co., Ltd.
Written inC, assembly language, Shell
OS familyPOSIX
Working stateDiscontinued
Source modelOpen source
Initial release20 May 2015 (2015-05-20)
Final releaseV5.0 / December 2020 (2020-12)
Repositoryhttps://gitee.com/LiteOS
Marketing targetInternet of things, smartwatches
Available inEnglish
Kernel typeReal-time Microkernel
Influenced byUnix, FreeRTOS, Unix-like, Integrity, VxWorks (POSIX)
LicenseBSD 3-clause
Succeeded byOpenHarmony
Official website"LiteOS: Huawei LiteOS". Gitee.com.

Huawei LiteOS is a discontinued lightweight real-time operating system (RTOS) developed by Huawei. It is a POSIX compliant operating system for Internet of things (IoT) devices, and free and open-source software, released under a BSD 3-clause license. Microcontrollers of different architectures such as ARM (M0/3/4/7, A7/17/53, ARM9/11), x86, and RISC-V are supported by the project. Huawei's LiteOS is part of their '1+8+N' Internet of things system, and has been featured in several open source software development kits and industry offerings.

Smartwatches by Huawei and its former Honor brand run LiteOS. LiteOS variants of kernels has since been incorporated into the IoT-oriented HarmonyOS with open source OpenHarmony.