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90 lines
5.0 KiB
Markdown
90 lines
5.0 KiB
Markdown
# PineTime
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> The PineTime is a free and open source smartwatch capable of running custom-built open operating systems. Some of the notable features include a heart rate monitor, a week-long battery as well as a capacitive touch IPS display that is legible in direct sunlight. It is a fully community driven side-project, which means that it will ultimately be up to the developers and end-users to determine when they deem the PineTime ready to ship.
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> We envision the PineTime as a companion for not only your PinePhone but also for your favorite devices — any phone, tablet, or even PC.
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*https://www.pine64.org/pinetime/*
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The **Pinetime** smartwatch is built around the NRF52832 MCU (512KB Flash, 64KB RAM), a 240*240 LCD display driven by the ST7789 controller, an accelerometer, a heart rate sensor, and a vibration motor.
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The goal of this project is to design an open-source firmware for the Pinetime smartwatch :
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- Code written in **modern C++**;
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- Build system based on **CMake**;
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- Based on **[FreeRTOS 10.0.0](https://freertos.org)** real-time OS.
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- Using **[LittleVGL/LVGL 6.1.2](https://lvgl.io/)** as UI library...
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- ... and **[NimBLE 1.3.0](https://github.com/apache/mynewt-nimble)** as BLE stack.
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## Overview
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As of now, here is the list of achievements of this project:
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- Fast and optimized LCD driver
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- BLE communication
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- Rich user interface via display, touch panel and push button
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- Time synchronization via BLE
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- Notification via BLE
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- Multiple 'apps':
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* Clock (displays the date, time, battery level, ble connection status, heart rate and step count)
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* Heart rate
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* Motion
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* System info (displays various info: BLE MAC, build date/time, uptime, version, ...)
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* Brightness (allows the user to configure the brightness of the display)
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- Supported by 2 companion apps (developments ongoing):
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* [Gadgetbridge](https://codeberg.org/Freeyourgadget/Gadgetbridge/src/branch/pinetime-jf) (on Android)
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* [Amazfish](https://openrepos.net/content/piggz/amazfish) (on SailfishOS)
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- **[Experimental]** OTA (Over-the-air) update via BLE
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- **[Experimental]** Bootloader based on [MCUBoot](https://juullabs-oss.github.io/mcuboot/)
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## Documentation
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### Build, flash and debug
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- [Build the project](doc/buildAndProgram.md)
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- [Bootloader, OTA and DFU](./bootloader/README.md)
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- [Stub using NRF52-DK](./doc/PinetimeStubWithNrf52DK.md)
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- Logging with JLink RTT.
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- Using files from the releases
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### API
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- [BLE implementation and API](./doc/ble.md)
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### Architecture and technical topics
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- [Memory analysis](./doc/MemoryAnalysis.md)
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### Using the firmware
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- Integration with Gadgetbridge
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- Integration with AmazFish
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- Integration with NRFConnect
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- Firmware update, OTA
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## TODO - contribute
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This project is far from being finished, and there are still a lot of things to do for this project to become a firmware usable by the general public.
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Here a quick list out of my head of things to do for this project:
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- Improve BLE communication stability and reliability
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- Improve OTA and MCUBoot bootloader
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- Add more functionalities : Alarm, chronometer, configuration, activities, heart rate logging, games,...
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- Add more BLE functionalities : call notifications, agenda, configuration, data logging,...
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- Measure power consumption and improve battery life
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- Improve documentation, take better pictures and video than mine
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- Improve the UI
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- Create companion app for multiple OSes (Linux, Android, IoS) and platforms (desktop, ARM, mobile). Do not forget the other devices from Pine64 like [the Pinephone](https://www.pine64.org/pinephone/) and the [Pinebook Pro](https://www.pine64.org/pinebook-pro/).
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- Design a simple CI (preferably self-hosted and easy to reproduce).
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Do not hesitate to clone/fork the code, hack it and create pull-requests. I'll do my best to review and merge them :)
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## Credits
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I’m not working alone on this project. First, many people create PR for this projects. Then, there is the whole #pinetime community : a lot of people all around the world who are hacking, searching, experimenting and programming the Pinetime. We exchange our ideas, experiments and code in the chat rooms and forums.
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Here are some people I would like to highlight:
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- [Atc1441](https://github.com/atc1441/) : He works on an Arduino based firmware for the Pinetime and many other smartwatches based on similar hardware. He was of great help when I was implementing support for the BMA421 motion sensor and I²C driver.
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- [Koen](https://github.com/bosmoment) : He’s working on a firmware based on RiotOS. He integrated similar libs than me : NimBLE, LittleVGL,… His help was invaluable too!
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- [Lup Yuen Lee](https://github.com/lupyuen) : He is everywhere: he works on a Rust firmware, builds a MCUBoot based bootloader for the Pinetime, designs a Flutter based companion app for smartphones and writes a lot of articles about the Pinetime!
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*If you feel like you should appear on this list, just get in touch with me or submit a PR :)*
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