Thingy52 - What's the minimum temperature supported by thing52.

RE: Thingy52 - What's the minimum temperature supported by thing52.

ovrebekk — Thu, 03 Aug 2017 11:27:33 GMT

Correct Roger

The bug is on the mobile app side, not in the Thingy itself. We will update the apps to handle this properly.

Best regards

RE: Thingy52 - What's the minimum temperature supported by thing52.

Rony — Thu, 03 Aug 2017 01:41:21 GMT

Thanks Torbjøn

RE: Thingy52 - What's the minimum temperature supported by thing52.

ovrebekk — Tue, 01 Aug 2017 11:06:34 GMT

That is it, yes :)

RE: Thingy52 - What's the minimum temperature supported by thing52.

Roger Clark — Tue, 01 Aug 2017 07:50:59 GMT

Is the firmware source code in github ?

Edit.

I think I found it

github.com/.../Nordic-Thingy52-FW

RE: Thingy52 - What's the minimum temperature supported by thing52.

ovrebekk — Tue, 01 Aug 2017 07:26:52 GMT

Hi Rony

Well spotted, this appears to be a bug in the firmware.

The temperature sensor should be able to measure temperatures at least down to -40C, but negative numbers are not handled properly in the code.

We are working on a new release of the Thingy firmware, and will aim to fix this in the same release.
An exact release date is not set, but it should be out relatively soon ;)

Best regards
Torbjørn

RE: Thingy52 - What's the minimum temperature supported by thing52.

Roger Clark — Sun, 30 Jul 2017 03:15:47 GMT

BTW

I had a quick look at the Android code,App source code but its not my area of experience and as far as I could see the Temperature seemed to arrive in "EXTRA_DATA" but I couldnt see any code where it was performing a calculation

There is this code

github.com/.../ThingyListenerHelper.java

I suspect the problem is that they may be using an unsigned 8 bit value for this, in which case -5 may show up as 250

RE: Thingy52 - What's the minimum temperature supported by thing52.

Rony — Sun, 30 Jul 2017 02:55:00 GMT

Thanks Roger.

RE: Thingy52 - What's the minimum temperature supported by thing52.

Roger Clark — Sat, 29 Jul 2017 21:35:14 GMT

I missunderstood what you meant by "App".

You mean the iOS App and not the Application firmware.

In my case it was an application firmware problem in code I wrote.

In your case, the problem seems to be in the iOS App source code.

If the iOS source code for the app is in GitHub you could raise an "issue" in GitHub and hopefully Nordic should fix and upload a new version to Apple for approval into the App Store.

Apple now seem to only take a few days to test and approve an app update, so Nordic should be able to fix this quite quickly

BTW, If the Android app also reads the wrong value, you should raise an issue for that as well on GitHub

RE: Thingy52 - What's the minimum temperature supported by thing52.

Rony — Sat, 29 Jul 2017 14:38:29 GMT

I noticed that only the iOS app crashes but the Android app start measuring 250C instead of O C or less.

RE: Thingy52 - What's the minimum temperature supported by thing52.

Rony — Sat, 29 Jul 2017 12:00:49 GMT

Thanks Roger, It does sound like a bug in the code. How did you fix yours?

RE: Thingy52 - What's the minimum temperature supported by thing52.

Roger Clark — Fri, 28 Jul 2017 22:29:18 GMT

Sounds like a bug in the code, where it did not expect negative numbers.

I had the same problem with some of my code last week, as it's winter here in Australia and one of my environmental sensing beacons stopped sending valid data ( but it didn't crash)