Using nRF UART 2.0.. how does this app send info?

RE: Using nRF UART 2.0.. how does this app send info?

Roger Clark — Thu, 26 Jan 2017 03:15:42 GMT

If this answer is acceptable, please click on the tick icon, so that its marked as resolved.

RE: Using nRF UART 2.0.. how does this app send info?

jimbo — Thu, 26 Jan 2017 02:01:41 GMT

ok thanks a lot!

RE: Using nRF UART 2.0.. how does this app send info?

Roger Clark — Thu, 26 Jan 2017 00:49:38 GMT

If you look at the source code e.g. for the Android app, you can clearly see it sends all the text at the same time

See

github.com/.../MainActivity.java

RE: Using nRF UART 2.0.. how does this app send info?

jimbo — Wed, 25 Jan 2017 22:47:24 GMT

yeah I was wondering if I write a long list of characters using the nRF UART, and hit send. Would the nRF UART 2.0 app send it all together or does it send it one by one really fast

RE: Using nRF UART 2.0.. how does this app send info?

Roger Clark — Wed, 25 Jan 2017 19:41:29 GMT

Sorry, I misunderstood your question, I though you were referring to the Application code in the nRF5 device.

Your question asked if you can send characters one by or in a group, and both are possible, up to a group length of 20 characters.

But whether a IPhone or Amdroid app sends the characters individually or in a group depends on the App.

E.g RedbearLab have an app which sends characters in a group, but I think the Nordic examples send characters individually.

RE: Using nRF UART 2.0.. how does this app send info?

jimbo — Wed, 25 Jan 2017 14:39:18 GMT

hello thanks for the reply, when you say "when you write from YOUR app" by YOUR APP you mean the nRF UART right? not some app I made?

RE: Using nRF UART 2.0.. how does this app send info?

Sigurd — Tue, 24 Jan 2017 10:15:33 GMT

If you are having problems with nRF UART 2.0, I recommend that you use the nRF Toolbox app and use the UART function there. The old UART 2.0 app is deprecated. If you want to take a look at the source code for the nRF Toolbox, you can find it here.

RE: Using nRF UART 2.0.. how does this app send info?

Roger Clark — Tue, 24 Jan 2017 03:00:58 GMT

The UART service uses a buffer of characters

When you do a write from your app, if you send 7 characters the nRF51 will get an event to handle those 7 characters when they arrive (all together)

If your app sends 1 character per Write, that's the way they will be received.

Note, there is limit of 20 characters per write (this can be changed but its not easy to do or supported app BLE API's)