# No-Chicken/OV-Watch

A powerful Smart Watch based on STM32, FreeRTOS, LVGL.

Repository: https://github.com/No-Chicken/OV-Watch
Canonical: https://ross.abutalabs.com/products/ov-watch
Homepage: https://www.bilibili.com/video/BV1hh4y1J7TS/
Language: C
License: GPL-3.0
License Family: copyleft
Topics: freertos, lvgl, stm32, smartwatch
Last push: 2026-05-26T10:27:13+00:00

## Health v2 (maintenance only)
Score: 58/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 84, release rhythm 8, longevity 86
- inputs: {"age_days": 1215, "days_push": 99, "days_rel": 722, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2441, forks 327 (observed 2026-08-28T04:06:52.398660+00:00)

## What it is
OV-Watch is an open-source smart watch project built on an STM32F411 microcontroller running FreeRTOS with an LVGL-based user interface. It includes full firmware, bootloader with Bluetooth OTA updates, and open-source hardware designs for DIY assembly.

## Use cases
- build your own open-source smart watch
- learn embedded development with STM32 and FreeRTOS
- study LVGL GUI programming on a real wearable device
- flash custom firmware onto a DIY smartwatch
- implement low-power sleep modes on STM32
- add Bluetooth OTA firmware updates to an embedded project

## When to choose
- you want a fully open-source smartwatch with open hardware designs
- you are learning STM32, FreeRTOS, or LVGL through a complete real-world project
- you want a hackable wearable platform with OTA updates

## When to avoid
- you need a production-ready consumer smartwatch with app ecosystem support
- you cannot solder SMD components and only want ready-made hardware
- you need iOS/Android companion app features out of the box

## Facets
- artifact type: application
- maturity: active
- function: embedded, gui, graphics, developer-tools
- domain: embedded-systems, hardware, iot, cross-platform
- platform: embedded, iot, c
- tags: smartwatch, stm32, freertos, lvgl, open-source-hardware, wearable, firmware, diy-electronics

## Member repositories
- No-Chicken/OV-Watch (main) score 58

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:52.398660+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:30:43.002770+00:00, confidence not recorded.
  - readme: https://github.com/No-Chicken/OV-Watch (fetched 2026-08-28T04:06:52.398660+00:00, sha 71cdf9c147d9)
  - homepage: https://www.bilibili.com/video/BV1hh4y1J7TS/ (fetched 2026-08-29T10:12:00.581103+00:00, sha 0b94338403a8)
- Data as of 2026-08-30T08:39:29.467469+00:00.