peripheral filter connections by central device name

[ms360]

Hi! 
I have multiple peripherals and centrals that I want to manage connections to. 
From the peripherals perspective, Is there a way to filter which centrals can connect to the peripheral by name? 

Eg - peripheral A can connect to central 1 or central 2. If switch is engaged, only allow central 1, if switch is disengaged, only allow central 2. 

I tried searching but keep finding the opposite, which is easy!

Thanks 

[Hung Bui]

Hi Ms360, 
I don't think you can make a Filter Accept List based on the name. But you can make a filter based on the address. 
I would suggest you to take a look at our BLE Academy course here: https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-5-bluetooth-le-security-fundamentals/topic/blefund-lesson-5-exercise-2/

Lesson 5 exercise 2 will show you how to use the list.

Another option you can do if it's not possible to use the address (no bonding for example) is to disconnect after you get connected. So when you get connected the central need to write something (for example, the name of the central , or a password) if the name of the central doesn't match, the peripheral can decide to disconnect. 

Please be aware that the peripheral can not connect to the central proactively. It has to wait and advertise for the central to connect to it. 

[ms360]

Thanks Hung Bui.

Is there a non-zephyr version of that? I'm on nRF SDK 17.1 

I thought of a new idea to broadcast the switch status in the advertisement packets and let the centrals control how they connect based upon that. Now the centrals don't need to connect to know the switch status.