Is it possible to connect without using GATT ?

RE: Is it possible to connect without using GATT ?

Roger Clark — Mon, 07 Nov 2016 08:54:35 GMT

Petter,

Thanks for the suggestions.

We have a accelerometer and also a button (in some optional configurations).

I think the best solution may be to change the advertising data after a connection has been made, so that the device is not connectable for a suitable period, e.g. 15 minutes or perhaps an hour.

As in normal operation, the device would only be connected to quite infrequently e.g. once per week to make changes to its configuration.

RE: Is it possible to connect without using GATT ?

Petter Myhre — Mon, 07 Nov 2016 08:19:20 GMT

As far as I know, that is not possible.

I'm not sure what your product is, but maybe you can limit the advertising (and connection requests listening) somehow? Maybe you can activate advertising with a button? Or maybe by movement (if you have an accelerometer)? Maybe you could stop advertising for a certain time if many unwanted devices tries to connect?

RE: Is it possible to connect without using GATT ?

Roger Clark — Sat, 05 Nov 2016 21:20:04 GMT

Hi Petter

I think basically I was thinking about whether I could bypass the GAP and GATT, and implement private protocols instead.

But in retrospect, as I need to connect via iOS, I don't think iOS will allows this with its BLE API.

My main concern is the new Web BLE API, Which will mean that any random phone etc can connect without needing a custom App.

Hence I was trying to think of a way that would prevent the Web BLE devices connecting and hence taking power, and effectively performing a Denial Of Service on our devices, by causing them all to go flat really quickly.

Unfortunately I can't use while-listing etc as multiple legitimate apple devices will connect to our product, and it would not be possible to pre-program the devices with a list.

RE: Is it possible to connect without using GATT ?

Petter Myhre — Fri, 28 Oct 2016 11:26:45 GMT

I'm sorry, I don't understand what you mean. Are you asking if you must add services to be able to establish a connection? What do you mean with handle the connections at a lower level? What lower level is this? Please elaborate?