How can we connect two nordic thingy:52 using Bluetooth?

[Lance_chiu]

Hello,

            I want to use 2  thingy:52 board  in which one will act as master and other as slave. If yes, how can we do it?
please provide any example code.  Thank you.

[awneil]

What do you mean, "master" and "slave" ?

Do You mean you want one of the Thingies to be a BLE Central, and the other Thingy connects to it (as a BLE Peripheral)?

What would be the purpose?

The nRF52 chip can certainly be a Central, but the entire Thingy design is based on it being a Peripheral - so you will pretty much have to re-write it completely.

There are BLE Central examples in the SDK.

But are you sure you really want to do this?

Perhaps if you explained what you're actually trying to achieve - what is your goal - people could make suggestions...

http://www.catb.org/esr/faqs/smart-questions.html#goal

[Lance_chiu]

Thank you for your reply. Define two thingy:52 board: device A and device B.  
I want transfer sensor data of device A to device B and these sensor data of device A & 
device B are transferred to APP.  Can you help me?

Thanks and best regards.

[awneil]

For device A, you can use the Thingy unmodified.

For device B, you will have to add

• Central capability
• code to manage the connection to A
• code to read the data from A
• code to combine B's own sensor data with the data from A, and add that to the data sent to the App.

Is there a particular reason why you want to form a chain like this - rather than just have both connect direct to the app?

If you want more than just 2 devices, you could look at Mesh.

SDK examples are here:

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/examples_ble.html

The Relay example might be useful:

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/ble_sdk_app_rscs_relay.html

I don't think the Thingy code is compatible with current SDKs - so, if you want to use it, you'll have to figure that out...