NRF52840 Dongle DK to recieve multiple bluetooth data from 3 different arduino bluetooth modules (HC-05)

[Alnos]

Hello everyone,

I have interfaced an encoder and speed sensor on a spinning bike that all connect to arduino via COM/USB port. The COM port communicates to a game engine and allows you to have a virtual training.

Using low energy BLE I would like to go wireless for all my sensors!

Assuming I know how to pair each sensor to an arduino nano, bluetooth module and battery to run in low power mode:

1. Could the NRF52840 Dongle Be used to recieve multiple BLE signals from arduino simultaniously ?

2. Could I use the NRF52840 to organize how that data is sent to COM so that a software uses that data for its virtual environment?

3. Is this a relatively easy task?

Thank you very much and sorry if the question is beginner, I have not worked with bluetooth yet.

[Alnos]

Thank you for your kind reply.

Correct, HC-05 is not BLE. I have yet to decide what to buy for the bluetooth arduino module. Regardless, the NRF52 can deal with other bluetooth versions so it would not be a problem receiving the signals correct?

I am by no means a "competent" C programmer. I have done some C/C++, some arduino projetcs, some Python, a tiny bit of C# but never worked with bluetooth projects.

Therefore, I am having alot of trouble deciding "what to buy" to make all my set up wireless.

Why is the nRF52- DK a better choice? Can it still recieve multiple bluetooth channels to USB?

Any advice on what I need is greatly appreciated.

[Jørgen Holmefjord]

The DK is a better choice, as it has built-in debugger. If you have not decided on sensor bluetooth module, why go with Arduino in the first place, and not use nRF52 series for both sides of the link? This gives you better control on the whole system.

[awneil]

Alnos said:

the NRF52 can deal with other bluetooth versions

It can only deal with BLE - not "classic" Bluetooth.

Alnos said:

I have yet to decide what to buy for the bluetooth arduino module.

Note that the nRF52 is a fully-fledged ARM Cortex-M4 microcontroller - it can probably do anything that an Arduino can do.

The nRF52-DK has Arduino-compatible connectors on it - so you can connect Arduino shields ...

Alnos said:

Why is the nRF52- DK a better choice?

Because it is a ready-to-use, known-good, supported platform with ready-to-use examples in the SDK.

It also comes with a built-in programmer and debugger - which the dongle does not have.

The dongle is not really intended for developing on.

[awneil]

ha ha - we were both typing pretty much the same thing at the same time!

[Alnos]

Arduino nano (4$) + bluetooth (5$) is so cheap, delivers fast from amazon, and is tiny. If there is a better option price size and quality wise I'd love to hear it.  It is difficult to find the right stuff in a field that is not mine!

[Alnos]

So if I understand correctly, as long as it is BLE, it does not matter if it is bluetooth 4 or 5? Would a series of HC-10 modules (see link) be all readable by NRF52 DK in different channels?

 www.amazon.ca/.../ref=mp_s_a_1_2_sspa