How to connect to multiple Bluetooth?

RE: How to connect to multiple Bluetooth?

ldmxhj — Thu, 25 Feb 2016 12:30:08 GMT

I see, S132 is on my list, but need to get this one done first. Thanks anyway!

RE: How to connect to multiple Bluetooth?

Wojtek — Thu, 25 Feb 2016 12:27:59 GMT

Actually, currently I am working only on S110. Planning to move to S132 soon :)

RE: How to connect to multiple Bluetooth?

ldmxhj — Thu, 25 Feb 2016 12:26:39 GMT

Thanks Wojtek, I am also looking for a complete example for multiple connection + UART for S120/S130 (S120 is preferred). I have integrated it in SDK 8 year ago but it seems like it has some re-connection issue when the peripheral drops from one central node and cause the new central node hanging. So now I am working on the SDK 10 but feel struggled to integrated them together - always got some complains. Is there a complete code available somewhere? Thanks! Jack

RE: How to connect to multiple Bluetooth?

MartinBL — Thu, 25 Feb 2016 12:22:59 GMT

Here is a brief thread about the new S130 capabilities.

RE: How to connect to multiple Bluetooth?

Wojtek — Thu, 25 Feb 2016 12:19:42 GMT

ROM is fixed, in newest release S130 RAM consumption should vary of initialization configuration AFAIK.

RE: How to connect to multiple Bluetooth?

MartinBL — Thu, 25 Feb 2016 12:17:57 GMT

I'm not quite sure if I understand what you mean, but:

The nRF5s supports Bluetooth Low Energy (aka BLE or Bluetooth Smart or Bluetooth 4.x), ANT and proprietary protocols. None of our chips supports Classic Bluetooth (BR/EDR).

If you are talking about connecting two or more nRF5s together in a network then I suggest that you read up on Nordic's Softdevices. These are Nordic's own proprietary BLE protocols, specifically designed for the nRF5 series. As @Wojtek and @ldmxhj points out the various Softdevices support different roles and connection configurations.

RE: How to connect to multiple Bluetooth?

ldmxhj — Thu, 25 Feb 2016 12:17:24 GMT

I am a bit confuse with the memory setting of the S130. Rather than a fixed RAM & ROM, it is varies depending on the applications?

RE: How to connect to multiple Bluetooth?

ldmxhj — Thu, 25 Feb 2016 12:16:14 GMT

Yes, the nrf51822 will work as a central/observer role and act like a AP. You can flash it with S120 or S130 and try the ble_central example in the SDK 8/9/10. It can connect to up to 8 peripherals simultaneously.

RE: How to connect to multiple Bluetooth?

Wojtek — Thu, 25 Feb 2016 12:15:19 GMT

Yes, S130 allows up to (correct me if i am wrong) 8 connections as central and 1 connection as peripheral. Newest version of SD may allow more, but i am not sure because of no documentation released yet.