nRF51822-QFAC acts as peripheral and connected by 2 central?

[LeonWu]

Hi team,

I was asked by one of my customers, that if they can use nRF51822-QFAC (existing products design) as peripheral while connected by 2 central (Phone & Router)? If our nRF51822-QFAC can make it, any obvious adjustment in coding? And for the connection with central, does customer need to switch off one connection and connect the other or it can be connected with 2 central at the same time?

Thanks!

Leon

[Susheel Nuguru]

Hi Leon,

Using S130, the nRF51 devices can have S130 with which they can have upto 8 concurrent roles. So having 3 roles as you asked should be easily doable.

[helen]

Hi  Susheel:

   The S130 stack supports up to eight connections with an additional Observer and a Broadcaster role all running concurrently.So ,I want to know if or not ,it support connet two central device,concurrently.

Thanks.

[Susheel Nuguru]

helen said:

,I want to know if or not ,it support connet two central device,concurrently.

 Yes, It can do that.

[helen]

Hi  Susheel Nuguru:

   Thanks your reply.So,Can you  give me a example project? or maybe ,give me some tips about how to modfiy example to connect several central concurrently.

[Susheel Nuguru]

Hi Helen and Leon,

I have to apologize here. I did not knew that the multi link peripheral feature has not been back ported into S130v2. 

I also misread the text here. While trying to change the hrs example to have multiple peripheral roles, sd_softdevice_enable failed error NRF_ERROR_CONN_COUNT. This means that softdevice will not allow more than one peripheral. Sorry about the previous comments and confusion.

does customer need to switch off one connection and connect the other or it can be connected with 2 central at the same time?

It is not possible to be connected to two centrals at the same time using S130. So yes, the customer has to disconnect one connection to be able to connect to the other. 

[helen]

Hi  Susheel Nuguru:

   Thanks your reply.I get it .