Inrf52810 AT module Communicating with Android phone

RE: Inrf52810 AT module Communicating with Android phone

Edvin — Fri, 08 Mar 2019 09:33:12 GMT

Ops. Yes. It does. I am sorry. Some of the links are still broken after we moved to our new webpage. The link that I sent, infocenter, is not maintained anymore, but I couldn't find the link in our new nordicsemi.com/DocLib.

Either way, the nRF Uart app's source code is found on github.com/nordicplayground:

https://github.com/NordicPlayground/Android-nRF-UART

I will let our web admin know about the missing documentation on our new websites.

BR,

Edvin

RE: Inrf52810 AT module Communicating with Android phone

jerry — Fri, 08 Mar 2019 09:25:13 GMT

Edvin- Thanks so much again! The site you pointed me to gives an error 404, but I suppose it's now on Github? I see the UART APP limits the input and output string size, is that just the program limitation? I need to send and receive packets of up to 256 bytes. Is using and modifying the UART app codes the best way of data exchange for a hand held product? Is that what most people develop with? I'm new to Bluetooth. A 3d party company will be writing the app, I just need to communicate with it from my side, All data will be ascii2 characters, such as Hex files.

RE: Inrf52810 AT module Communicating with Android phone

Edvin — Fri, 08 Mar 2019 07:37:44 GMT

Hello Jerry.

The source code for the nRF UART app is available from here.

Another app, which also includes the nRF UART module is nRF Toolbox. You can try it out. The source code for this is available from here (github link to the right).

RE: Inrf52810 AT module Communicating with Android phone

jerry — Thu, 07 Mar 2019 21:20:41 GMT

Thanks- I just need to be able to send and receive data packets, which it looks like can be done. Am I missing something? Will the information be available to develop an APP on the phone to communicate with your proprietary operation. I'm a bit confused now.

Jerry

RE: Inrf52810 AT module Communicating with Android phone

awneil — Thu, 07 Mar 2019 19:25:01 GMT

[quote userid="77820" url="~/f/nordic-q-a/44460/inrf52810-at-module-communicating-with-android-phone/174802"]what is different about Nordic nRF UART 2.0, then other terminal apps[/quote]

There is no standard BLE profile to provide a "UART-like" link over BLE (unlike SPP over BT Classic).

The Nordic UART Service (NUS), as the name suggests, is proprietary to Nordic - so it isn't going to work with other arbitrary "terminal apps" unless they specifically state that they support it.

RE: Inrf52810 AT module Communicating with Android phone

jerry — Thu, 07 Mar 2019 17:58:21 GMT

Thanks- I appreciate the support.

RE: Inrf52810 AT module Communicating with Android phone

Edvin — Thu, 07 Mar 2019 17:40:01 GMT

Hello Jerry,

The nRF UART app is just a layer on top of nRF Connect. It is not bonded either. In BLE we have several stages of connections, and you don't need to e.g. bond to be connected. You can read about the different connection stages, connection, pairing, bonding here:

https://devzone.nordicsemi.com/f/nordic-q-a/11939/connecting-bonding-pairing-and-whitelists

So you should be able to do everything in other apps, e.g. nRF Connect, as you do in nRF UART 2.0. It may be that the AT module waits for a "linefeed", or '\n' (which is 0x0A in Ascii. Look up "ascii table") before it starts to interpret the message. Other wise it will think that the command is not done.

BR,

Edvin

RE: Inrf52810 AT module Communicating with Android phone

jerry — Thu, 07 Mar 2019 12:50:35 GMT

Edvin- Thanks very much. I spoke to Raytac and they suggested I use Nordic nRF UART 2.0 as an app to communicate. It worked and I can send a receive data. It did not require any AT command setup.

So, my question is what is different about Nordic nRF UART 2.0, then other terminal apps that it connects and communicates. If I try other apps(only tried a few) why do I get a message saying connected but not bonded?

Thanks again

Jerry

RE: Inrf52810 AT module Communicating with Android phone

Edvin — Wed, 06 Mar 2019 14:19:05 GMT

Hello Jerry,

I believe this question is actually meant for Raytac. Our chips doesn't come with AT commands, so this is something that Raytac have made, and programmed into the chips.

I guess this is a good place to start:

https://www.raytac.com/upload/download_files/c5581093f0b2edd11dd21b3f6afc718c.pdf

More than that, I don't know actually. Maybe someone else have experience with this module and how the AT Commands work?

Best regards,

Edvin