Trasmitting 'Int' through BLE

[Deruyo Uchica]

Hello,

I'm using nRF Connect for Android, and transmitting data from a Intel Genuino 101 board. The data I need on my phone is simply an integer, but I can't manage to show it on my phone as a decimal number (there is a (0x) befone the number and then hex). Is there an way to solve this issue?

Also, if there are any "general purpose" tutorial to get my hand on ble comunication i'd be grateful to see them.

Thank you

Best regards

[MartinBL]

Hi,

Unfortunately it is not possible to customize how custom characteristic values show up in nRF Connect. 

We have these tutorials, but they are a little outdated. 

[Deruyo Uchica]

Thank you for your reply!

Maybe I'm losing something. So there is now way for the app nRF Connect to show decimal number? Or maybe I could change something on my code on the Arduino side?

[MartinBL]

So there is now way for the app nRF Connect to show decimal number?
Unfortunately not. There are many people that ask about this, and they all have different use cases. It would be hard to cover everyone's prefered display format of their values. 

[Deruyo Uchica]

I'll annoy you once more: how would proceed if you need decimal value to be shown?

[Aleksander Nowakowski]

Hi,

Actually, from the latest version 4.19.0 you may use the Characteristic Presentation Format descriptor (https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml). Most of types specified there are supported (except 64- and 128-bit integers). I hope that's enough.

Characteristic Aggregate Format descriptor is not supported, so just one value can be used per characteristic.