# Overview

Overview of infos for the BlueX BLE ARM Cortex-M0 SoC used in the Colmi Smart Ring series


This repo is made together with this explanation video:(click on it)

[![YoutubeVideo](https://img.youtube.com/vi/w90RVspTkt8/0.jpg)](https://www.youtube.com/watch?v=w90RVspTkt8)

And

[![YoutubeVideo](https://img.youtube.com/vi/IOMqtFrNpTI/0.jpg)](https://www.youtube.com/watch?v=IOMqtFrNpTI)

# OTA Firmware Flashing Tool

You can use this tool to update the firmware OTA via a comaptible Browser:
https://atc1441.github.io/ATC_RF03_Writer.html
[![OTA_Flasher_image.png](/OTA_Flasher_image.png)](https://atc1441.github.io/ATC_RF03_Writer.html)

### OTA Firmware header description

![](/OTA_Firmware_Header_description.png)

# Hardware infos

SoC: BlueX Micro RF03 - 200KB RAM 512KB Flash

HRS Sensor: VCare VC30F

ACCL Sensor: STK8321

Battery: 17mAh


P00 SWCK

P01 SWD