Sending a stream of data over BLE using two nrf52832 dev kits

[Chiaq]

Hi,

I'm would love to send a stream of data (uint8) from Matlab over UART to one nrf52832 and then send it over BLE to another nrf52832 dev kit. Then, I want to send it over UART to Matlab again and I want to read these data as I sent them (stream of uint8 data).

Using ble_nus_data_send(), what I get on Matlab is a double type array of data. I don't know what's wrong. I used the examples ble_app_uart and ble_app_uart_c for the two devices.

Is there another function to send data as sequence of bytes over BLE?

Best Regards,

Chiara

[droidecahedron]

Perhaps it is the way you are interpreting the data on either of the endpoints. nus kind of accomplishes the function of sending data as sequence of bytes. how you format that data upon reception from the uarts is up to you.

[Chiaq]

I'm interpreting them correctly, the problem is that I receive them wrongly in the central (the data stream over BLE is from peripheral to central). So I don't know if in the ble_app_uart/_c they are sent in hexadecimal format or smth else than single bytes.

[droidecahedron]

I used nus central and peripheral for something similar, and I received the data from nrf device to my host mcu as regular uint8ts.