New nRF52832 based smart watch available (ID107HR Plus)

It looks like the same company who make the ID107 HR have brought out a new product called and ID107 Plus, which uses the better nRF52832 MCU I ordered 2 of these from AliExpress and they arrived a few days ago. However at the moment I can’t work out the best way to open the device to look inside.   I’ve also contacted the company via an Alibaba PM to confirm if this … Read More

Arduino on the ID100HR fitness tracker

posted in: BLE, Bluetooth, nRF51822 | 20

Some time ago…, Goran Mahovlic commented about how he was trying to run Arduino on an IDo 003, fitness tracker / smart watch which uses the nRF51822. As I’ve been interested in smart watches for some time, I thought I’d buy the same watch, and join in the fun. Unfortunately the first watch I bought didn’t contain an nRF51822 (see my other post about nRF51 based smart watches), so I ordered 2 more of … Read More

nRF51822 based fitness trackers

posted in: Arduino, BLE, Bluetooth | 26

As regular readers of my blog will know I’m an ardent fan of the Nordic nRF51 (and nRF52) series of Bluetooth Low Energy MCU’s. So when I found out that a number of fitness tracker / smart watches, used the nRF51822 and could be easily opened and reprogrammed I was very interested and ordered 2 of them to try. Unfortunately soon after I ordered them, it became clear that the model I had ordered … Read More

Reprogramming the Dash Robotics Kamigami – Part 1

As regular readers will know, I’m a fan of the Nordic nRF51822 Bluetooth MCU, as it can be programmed developed using Open Source tools. So when I saw the Dash Robotics Kamigami at Bay Area Maker Faire in May, and spoke to their hardware engineer Dwight Springthorpe, who confirmed that this innovative educational toy used the nRF51822, I took the plunge and bought one on the spot – at the special show price 😉 … Read More

Arduino on the nRF51822 Bluetooth Low Energy microcontroller

Update May 2018   The articles about programming the nRF51xxx devices are now 3 years old and are only of use for historic reference. Please see the work done by Sandeep Mistry for the current status of Arduino development on these devices   Original post… This is the first in a series of posts about programming the Nordic Semiconductors nRF51822 Bluetooth low energy micro-controller using the Arduino IDE. The post is a big … Read More