Arduino programmable smart Watch

Anything not related to STM32
User avatar
Posts: 6692
Joined: Mon Apr 27, 2015 10:36 am
Location: Melbourne, Australia

Re: Arduino programmable smart Watch

Post by RogerClark » Fri Aug 11, 2017 4:48 am

Someone just brought this supposedly nRF52 based smartwatch to my attention as well (X9 Plus)

However if you read the comments on the youtube video, the watch seems to fake the readings, so I'm not even convinced it has an nRF52 in it.

These companies just write things in the description which they think will sell more watches, and most users would not notice as the don't take them apart

Posts: 7
Joined: Wed Aug 09, 2017 9:42 am

Re: Arduino programmable smart Watch

Post by manu84 » Mon Aug 28, 2017 9:26 am


I just received my heart monitor smartwatch (near same as ID107).
I open it and check the mcu is right nrf51822.
The pcb is not same than yours but I identify rx, tx, swdio swclk test pad.

Then I follow your blog post ( ... ontroller/), setup the arduino ide and program a mapple mini as describe (I have aslo a st-link v2, Could I use it?).
So now, to program the watch:

- Do I only need to connect swdio,swclk and ground to mapple mini, correct?
- Could you share you arduino script to test my config with the watch?


Posts: 7
Joined: Wed Aug 09, 2017 9:42 am

Re: Arduino programmable smart Watch

Post by manu84 » Tue Aug 29, 2017 10:21 pm

ok, so I install gdb with MinGW and run it with the maple mini convert as black magic probe as you describe.
When in gdb I run monitor swdp_scan command, GDB return the nrf51822 as a ARM Cortex-M...
So I found my nrf51822 is a QFAAH1 version and found your post about problem you got with this version.

I test it also with a stlink v2 mini and openocd v 0.10 it fail also..

So please how do you solve the programing of H1 with the maple mini black magic probe? (I use your blackmagic_archive_version to burn the maple mini) ???

Thanks for your support.

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests