nRF52840-DK selection example for management/data acquisition from heart rate sensor and temperature sensor

[Fpoli]

Hi everyone, I'm new to DevZone.

I am writing to ask for info for the first application with BLE.

I need to send data acquired by sensors, RAW mode, via the BLE application to the smartphone APP.

In this regard I have installed Segger Embeded Studio and Nordic SDK v17.0.2 and I have seen that there are many examples made available by Nordic. I have board nRF52840-DK with hw pca10056.

I would like to use the stack present in S140. Which example should I use, as a template, to acquire from my heart rate and temperature sensors and send it(RAW format)  to the smartphone app?

Thanks to all in advance.

Fpoli

[Fpoli]

Hi awneil, thanks for your reply.

Yes, your advice might be fine for transferring RAW data to virtual UART.

I am attaching a block diagram of my system. The amount of data is great, do you have to recommend some other faster transfer method?

Thank you in advance.

Fpoli

[awneil]

Fpoli said:

The amount of data is great

How much is "great" ?

The key design goal of BLE - as the name suggests - was to minimise power (energy) consumption; it is specifically not designed for high-volume and/or high-speed data.

So are you sure that BLE is the right choice?

Maybe you need to do some processing in the nRF to reduce the amount of data transferred?