Support for ble_app_uart example

[Darshansm5549]

Hello, i am using ble_app_uart example. i am trying to send A to Z from ble to uart. Has i noticed, it is transferring 20 characters at a time.  to make sure that i add print statement  it nus_data_handler, i got A to T then U to Z.. please help me to increase the size to get A to Z. Please refer the screenshots below.

[Vidar Berg]

It's receiving 20 characters at a time. You can receive larger packets if the central support long MTU (>23bytes - actual payload is MTU - 3 bytes). Which SDK version are you using, and do you know if you central supports long MTU? 

The ble_app_uart example in SDK 15.2.0 will request a 247 byte MTU by default which means that you can receive up to 244 bytes in one packet. 

[awneil]

Whatever you do, there is always going to be some finite limit to the number of bytes that can be sent in one message.

So perhaps it would be better to think about how, in general, to cope with that ... ?

eg, have some sort of "terminator" to identify when the message is complete ... ?

[Darshansm5549]

I got the solution. The app I am using, that bless MTU is limited to 20. So I used nrf connect app and another app from playstore l, it solves