Protocentral Forum - Recent Topics

Software Status

uutzinger — Thu, 29 Jan 2026 13:47:53 +0000

Software has been making steady progress, however on my watch with firmware 2.0.1 several sensors are not working and I wonder whether this is hardware issue or software issue:

- Pulseoximeter: Finger sensors progress bar advances and creates a results, however wrist sensor does not progress and fails.

- ECG: Flashes instructions but since its so short I can not read it. I hold the metal ring with my fingers and wait, however the watch stops with failure saying electrodes are not connected.

- Bloodpressure/Galvanic Skin Response: With these two not working, I doubt blood pressure or Galvanic Skin response will work.

Question is whether this indicates a faulty sensor board or whether this might be a software bug that will be fixed with time.

Specifically, do other users have ECG and wrist Pulseoximeter functionality with FM 2.0.1?

Calendar Error (again)

tony1tf — Fri, 31 Oct 2025 20:33:23 +0000

With the move to firmware V1.9, I was hoping that the month rollover errors would now be fixed. Alas not - today's date should be 31 October 2025, but my watch is showing 01 Nov 2025.

Is anybody at Protocentral looking at these pages where we are letting you know about what needs fixing, or should I go to github? Anyway, there seems to be no acknowledgment of my posts here.

Brightness Slider

tony1tf — Sat, 25 Oct 2025 10:01:08 +0000

I thought my watch had crashed with no display showing, and had to do a hard reset. It turns out that the brightness control must have been accidently moved to minimum which is screen off. Please change to slider so the minimum is not off.

Skin Temp °C

tony1tf — Fri, 24 Oct 2025 09:20:13 +0000

Although the watch can display skin Temp in °C, the app is still fixed at °F.

New watch case

tony1tf — Fri, 24 Oct 2025 09:14:44 +0000

The latest updates show a new watch case design. Will there be an upgrade path for those of us with the old one?

Latest firmware

tony1tf — Fri, 24 Oct 2025 09:12:58 +0000

Thank you for the new firmware. I was able to update it to v1.9 via the latest app download, and it all went smoothly. Only problem so far is that the live ECG display seems to need it starting from the watch, and it only works once. Even on the watch, once recorded, it only shows 'complete' with a green tick. I did a hard reset, and was able to take just one ECG again. In addition, I havnt found an app which will allow me to view a recording.

Firmware update

uutzinger — Sun, 12 Oct 2025 02:23:18 +0000

In past I could update firmware with nrf connect app on android over Bluetooth using standard firmware update feature of nrf connect. Now when I download firmware release from GitHub I can select the ZIP file for upload but the upload terminates within one second. I can read the watch with the Android app and I can connect to it with nrf connect. Booting watch says boot 1.2.99. is there hard reset option? Do I need Nordic development board to reset firmware over USB? I would like to upgrade to 1.5.1

Openview2 with ADS1293

steveedmonds — Sat, 05 Jul 2025 09:12:43 +0000

OpenView 2 has the ability to log when used with the ADS1293. Can the log later be replayed again through OpenView 2.

Steve

MAX30205 Temperature Sensor

Daniel — Thu, 26 Jun 2025 07:47:28 +0000

Hi!

I would like to send skin temperature values to my custom app over Bluetooth.
Unless I'm mistaken, I can't see the drivers for the MAX30205 temperature sensor.

Will drivers/support for the MAX30205 be added in the future? Or am I missing something?

Thanks,
Daniel

ProtoCentral ADS1293

ReneR — Fri, 20 Jun 2025 12:33:15 +0000

I try to connect the board with an Arduino UNO R4. For some reason I don't get any values just zeros '0'. I checked the wiring twice. Is there anything I have overlooked? Thanks.