driver to connect nrf52840 with our APP

[Rkidechaa]

Hi Dev Team,

I am developing the weight scale product using nrf52840 development board. We connected the nrf52840 using the nrf connect app ( Provided by nordic).

Now we want to send the data to our APP instead of nrf connect. can you guide me for this ? what kind of driver we need to connect to app.

Thank you in advance.

Rahul Kidecha

[Amanda Hsieh]

Hi Rahul, 

Have a look at our Android BLE Library over at our GitHub. 

Regards,
Amanda 

[Rkidechaa]

Hey Amanda,

Thank you for reply.

I Knew about the Library but I don't have any background regarding software.

If you provide me what command or protocol used to communicate with nrf52840 that would be great.

Thanks and Regards,

Rahul

[Amanda Hsieh]

Hi, 

Rkidechaa said:

If you provide me what command or protocol used to communicate with nrf52840 that would be great.

Could you elaborate in more detail on what you would like to communicate with nrf52840? 

Are you going to developing a mobile app as nRF connect app? If so, you can take a look at this https://github.com/NordicSemiconductor/Android-nRF-Connect for reference.  

-Amanda   

[Rkidechaa]

Hi Amanda,

Amanda Hsieh said:

Are you going to developing a mobile app as nRF connect app? If so, you can take a look at this https://github.com/NordicSemiconductor/Android-nRF-Connect for reference.  

before asking the question i already checked the above link. I don't have any background for app development so if you help to find out the communication or decode protocol when we connect to nrf app connect via Bluetooth.

Thank you

Rahul

[Amanda Hsieh]

Then, I would suggest you take a look at how nRF Blinky app (for Android/iOS) communicates with BLE Blinky Application or nRF Toolbox for Android/iOS, which has multiple profiles (unfortunately no Weight Scale).

-Amanda

[Rkidechaa]

Hi Amanda,

Let me explain you in more detail regarding the project so you can suggest better solution.

Using SPI and ble_app_uart example code we successfully sending the weight scale data that i.e. 192.4 (2 byte data) over Nordic UART service and keep displaying on nrf connect app (android phone).

In ble_app_uart they used "uart_event_handle()"function to detect the input on serial monitor. so i am calling that function and keep sending weight scale data to app.

I want to implement same feature in my app. so could you suggest me how to do that ? 

Thank you

Rahul 

[Amanda Hsieh]

Hi, 

Have a look at the UART app which is now part of the nRF Toolbox application (Android/iOS).

-Amanda