bluetooth transfer between 2 nrf

[NikTheNordicUser]

Hi , i would like to send some sensor data coming from SPI interface and then send it from one nrf52832dk onto another nrf52dk or a nrf52dongle and on the receiving end send the data serially to mathlab gui.

can this be done ? if so may someone guide me on how to do it please I am relatively new to nordic and would appriacte a bit more detail then just be pointed to the examples please.

thank you very much for your time

best regards nikolai dimech

[Simonr]

Hi Nikolai

I think you should look at our ble_app_uart example for instance which takes serial data from UART on either the peripheral or central and transmits it over BLE using the Nordic UART Service (NUS). ble_app_uart_c example for instance is a central that communicates with the COM port on connected computer and prints the received data into a terminal on the computer for instance.

Depending on the kind of sensor you are planning on using we might already have an example for that kind of sensor data already (heart rate, thermometer, blood pressure, etc.) in our BLE central and peripheral examples.

As you're new to the Nordic development scene I would also suggest taking a look at our getting started with BLE guide(s) here on the DevZone as well.

Best regards,

Simon

[NikTheNordicUser]

Hi , i am using the IMU sensor  BMI085 and i have just developed its spi interface. and I basically want to get the data output from this sensor (from spi) and send it via Bluetooth to another nrf52 which will be connected to my PC.

i have looked at the tutorials but I'm still finding it very very difficult to understands as there's a lot of information at once. is it possible to have a little bit more guidance and from where to start coding pl s

[awneil]

NikTheNordicUser said:

I basically want to get the data output from this sensor (from spi) and send it via Bluetooth to another nrf52

As Simonr said, the Nordic UART Service (NUS) should be fine for that.

Like a real hardware UART, it is just a "pipe" for transferring any arbitrary data; that's why it's called the "UART Service" - not because it has any particular relation to the hardware UART:

                     +---------------+                 +---------------+                 
                     |               |                 |               |
 +--------+          |    nRF   .....|    \|/   \|/    |.....          |
 |        |   SPI    |         :     |     |     |     |     :         |   UART
 | Sensor +--------->+....>....: NUS +-->--+     +-->--+ NUS :....>....+---------->
 |        |          |         :     |                 |     :         |
 +--------+          |          .....|                 |.....          |
                     |               |                 |               |
                     +---------------+                 +---------------+                 

[NikTheNordicUser]

ok understood , thanks for that :) ... i am currently going through the ble example as suggested :)