Single peripheral to multiple central connection with S130

RE: Single peripheral to multiple central connection with S130

sowmya — Wed, 18 Nov 2015 05:20:38 GMT

Hi Hung, Yes as per the star topology and nordic stack, it will support only one central at a time. But I also interested to know how Ryan has achieved multiple central connection?

RE: Single peripheral to multiple central connection with S130

Hung Bui — Wed, 18 Nov 2015 01:17:43 GMT

@Sowmya: Please be noted that, the star topology won't prevent a device to connect to two centrals at the same time. However, it would be 2 separated networks. And the 2 centrals won't see each other.

RE: Single peripheral to multiple central connection with S130

sowmya — Mon, 16 Nov 2015 12:51:56 GMT

Hello Ryan, Can I know how you achieved connecting 2 centrals using S130 stack? As nordic says, only 1 central can connect and even I have a requirement to connect to 2 centrals at a time. Can you please share what modifications you have done to be able connect to multiple centrals?

Regards, Sowmya

RE: Single peripheral to multiple central connection with S130

Hung Bui — Tue, 07 Apr 2015 02:47:14 GMT

@Ryan: Afaik BLE topology is still star topology, at BLE 4.2 spec. Could you point me to the link of the information you found ?

RE: Single peripheral to multiple central connection with S130

ryan — Mon, 06 Apr 2015 21:14:39 GMT

But I thought BLE 4.1 spec says you can have peripheral devices connected to multiple central devices at the same time and iOS already supports this. Of course my source is Google.

RE: Single peripheral to multiple central connection with S130

Hung Bui — Mon, 06 Apr 2015 02:42:18 GMT

@Ryan: No,by spec it's not possible for a peripheral to connect to several centrals at a time. [EDIT] It's actually wrong. It's possible for a peripheral to connect to several centrals simultaneously. But it will not be on same network, but different networks and the central won't be able to talk to each other.