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

Don’t buy this smartwatch / fitness tracker !

posted in: BLE, nRF51822 | 14

Just a quick post about another smartwatch / fitness tracker that I was miss-sold on eBay Its title was A16 Bluetooth Smart Watch Health Wrist Bracelet Heart Rate Monitor Sports New Do NOT buy this watch http://www.ebay.com.au/itm/182341391730   It is listed as using the Nordic nRF52832 Bluetooth MCU, but when I opened the watch to see how to reprogram it, I found it contained a Dialog processor   Unfortunately as I had already accepted … Read More

Blackmagic probe problems with a new nRF51822 device revision

I know quiet a few readers of the blog are interested in the nRF51822, and use either the Blackmagic probe or OpenOCD to program your devices. So I thought it worthwhile to share my experiences today, when I was unable to program a nRF51822QFAA device   To cut to the chase, the device identification in full is the nRF51822QFAAH1.  This appears to be a new revision of the QFAA device (16k RAM 256k flash), … 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 https://github.com/sandeepmistry/arduino-nRF5 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