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 PineTime-cOS

PineTime smartwatch

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.

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, and a capacitive touch IPS display that is legible in direct sunlight. It is a fully community driven side-project which anyone can contribute to, allowing you to keep control of your device.

https://www.pine64.org/pinetime/

https://wiki.pine64.org/index.php/PineTime

PineTime-cOS

The purpose of PineTime-cOS is to build a firmware for Pinetime that is lightweight:

• Code written in C;
• Build system based on Make;
• Based on FreeRTOS 10.0.0 real-time OS;
• UI library LVGL 8;
• Bluetooth S112 nrf52 7.2.0 softdevice;

Build and flash PineTime-cOS

$ git clone --recurse-submodules https://github.com/joaquimorg/PineTime-cOS.git
$ cd PineTime-cOS
$ make -j

Docs

Web Bluetooth Secure DFU : https://thegecko.github.io/web-bluetooth-dfu/examples/web.html

Nordic's Secure DFU bootloader, a step by step guide

https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader