Larege file receive NRF52832 via Mobile App

[Autobot]

Hello everyone,

In my application i need to send large file (bytes of Array)size 1MB to send NRF connect App or any another app. Receive that large file in NRF52832 any example code are available which service to use this application..???

[awneil]

Nordic UART Service (NUS) ?

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/ble_sdk_app_nus_eval.html

But note that BLE really isn't designed for "large data file transfer"...

[Autobot]

I referred this link https://github.com/NordicPlayground/nrf52-ble-image-transfer-demo. It has possible to transfer maximum 2MB image file.

so How can i implement this concept my application

[awneil]

Start with that example, understand it, adapt it to your needs.

[Autobot]

Any mobile APP is there to send files(EX: image,txt) to NRF52832...????

[ovrebekk]

Hi

We don't provide any examples specific to this unfortunately, but it should be possible to modify one of the existing examples to send a generic file over BLE: 

In general the best example to use as a starting point for app development is the Android-nRF-Blinky example. 

This is using a proprietary service, which means you can adopt the service to fit your own requirements (just make sure to change the service UUID if you ever plan to go to production). 

The Android BLE library has a split function that allows you to send a large packet in one go, and the library will do the job of splitting it into smaller chunks that the underlying BLE link layer can handle. This should make it easier to send files of varying sizes from the phone to the nRF52 device.

Best regards
Torbjørn