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Apple Watch and this smart band on the other, I bought a $10 fitness band at target and it syncs to Apple Heath but it would be great of this had a sync feature to Apple Health and syncs it automatically, the UI could be a little improved as well, it could tell you more in depth sleep analysis as of for example when your in a deep sleep or awake or light sleep, it does the now but could use work and the app has great potential and know the developer of this app is Chinese so we may or may not get the Apple sync feature but would be great additional to this app

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Resources for reverse engineering generic Nordic Semiconductor nRF52832 and nRF51822 ARM Cortex based Smartwatches and activity trackers. These devices are my primary development platform for rapid prototyping of wearables. You get a nRF52832 ARM Cortex M4 SoC MCU, color OLED display, accelerometer, HR LED, HR photodetector, vibration motor, LiPo battery, battery charger, injection molded enclosure and strap for $30-$40. Using these devices as a development platform means faster, more ambitious prototyping - I treat them as disposable and have personally destroyed more than 20 over the past two years. These devices can be programmed using nRF5X ArduinoCore, ARM Mbed or directly with the Nordic nRF5X SDK using ARM Keil or the GNU ARM Embedded GCC toolchain. Devices can be flashed using nRFgo Studio, nRFjprog Win , nRFjprog Linux , nRFjprog Mac , OpenOCD and ArduinoCore Arduino IDE Plugin.

copy the X9 variant directory from X9-nrf52832-activity-tracker\Firmware\sandeep_arduinocore_variant\Wearable-nRF52-X9 into your core variants directory Arduino\packages\sandeepmistry\hardware\nRF5\0.5.1\variants

Special thanks to all the members of the smartwatch slack group (@rogerclarkmelbourne, @goran-mahovlic, @micooke, @olivier, @marvin, @floe, the nRF51822 smart watch Gitter Lobby, to @goran-mahovlic and @rogerclarkmelbourne for the KX022 accelerometer driver, to @sandeepmistry for the awesome ArduinoCore Nordic SDK wrapper and Lampert for his awesome light saber WebGL 3D model. Roger Clark in particular has done a lot of cool stuff with Nordic activity trackers, check out his work!

The wearable tech market is growing up like crazy. There are many kinds of wearables coming into the market from, fitness bands to smartwatches and more.

In this article, I am going to introduce some open source smartwatches which we can completely customize from the hardware to the software, that too compatible with our favorite language, Arduino!

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.

Watchy is an open source smartwatch powered by ESP32 with a 1.54-inch e-paper screen. It is usable right out of the box, however, both the hardware and software are completely customizable. The watchy PCB acts as the body and has slots to attach a watch strap.

The Open-SmartWatch is an open source smartwatch project created by @pauls_3d_things/p3dt.net. It consists of hardware modules, 3D printable cases, and a custom operating system to build smartwatches with the goal that they can be assembled, repaired, and modified by everyone.

CulBox is an Open Source smartwatch for Arduino with built-in Bluetooth and a bunch of Hi-Tech sensors and tons of features for Arduino Designed by Senior Electron LLC in the United States of America

OpenHAK open source smartwatch project intends to allow users to discover activity tracking and how it works. By creating an open platform that counts your steps, and measures your heart rate, users can tweak, change, modify, and create all possible data streams.

As makers, we always want to make our own gadgets so if you are also interested like me to make a smartwatch or any wearable device read this article, here I’m discussing some products which will help us make our dream come true. When you make one don’t forget to make it as an open source