How to time-share switch between BLE and 2.4G private protocol

RE: How to time-share switch between BLE and 2.4G private protocol

lynnyang311 — Fri, 11 Sep 2020 10:18:59 GMT

I set the central address to the address of the special flag. Good idea,Thank you very much !

RE: How to time-share switch between BLE and 2.4G private protocol

Joakim Jakobsen — Fri, 11 Sep 2020 08:37:56 GMT

Yes, the data in the scan request command is defined in the specification and you are not able to send any custom data here.

You will just have to find another way to make the switch. The address of the central device will be included in the scan request, maybe you can swap to "2.4g" from the address?

RE: How to time-share switch between BLE and 2.4G private protocol

lynnyang311 — Tue, 08 Sep 2020 09:00:49 GMT

But my scenario requires support for two modes (BLE connection and 2.4g private mode), and you can easily be switched to 2.4g by someone else's scanner.Are you sure you can't send any data in a scan request other than the scan request command?

RE: How to time-share switch between BLE and 2.4G private protocol

Joakim Jakobsen — Mon, 07 Sep 2020 10:27:45 GMT

No, it's not possible to send any custom data in the scan request.

I guess you can solve this by making the device change to "2.4g" mode when receiving the scan request from the scanner.

Br,
Joakim

RE: How to time-share switch between BLE and 2.4G private protocol

lynnyang311 — Tue, 01 Sep 2020 10:28:27 GMT

My broadcaster can receive data. Can the scanner send special data in the scan request?

RE: How to time-share switch between BLE and 2.4G private protocol

lynnyang311 — Tue, 01 Sep 2020 10:25:30 GMT

Both sides are nRF52 chips, one is the bracelet and the other is nRF52840 DONGle. 2.4g mode is added to the bracelet end. When you want to broadcast via Bluetooth, you will receive the conversion signal of nRF52840 Dongle and switch to 2.4g mode

RE: How to time-share switch between BLE and 2.4G private protocol

Joakim Jakobsen — Tue, 01 Sep 2020 10:18:04 GMT

I understand.

If you have a device that is only a broadcaster, it will be hard to receive any data from the scanner. The "broadcaster" device will have to swap and scan for any packets broadcasted by the "scanner". Similarly the "scanner" will have to swap and broadcast data instead of scanning.

There is only one radio on the nRF so you will have to swap between scanning and broadcasting data.

Br,
Joakim.

RE: How to time-share switch between BLE and 2.4G private protocol

lynnyang311 — Tue, 01 Sep 2020 07:46:01 GMT

Thank you for your reply.The second point is how the broadcaster can get the data sent by the scanner without connecting to Bluetooth.

RE: How to time-share switch between BLE and 2.4G private protocol

Joakim Jakobsen — Fri, 28 Aug 2020 10:32:48 GMT

Hi.

1.
We have examples to demonstrate multiprotocol examples:
Multiprotocol application

The Multiprotocol Application is an example that implements the Heart Rate profile in Bluetooth mode and the Gazell device mode.

Not sure if I understand the question, could you elaborate?

Br,
Joakim