From mboxrd@z Thu Jan 1 00:00:00 1970 From: "T. Bolten" Subject: Re: Multiple BLE connections to one GATT-Server Date: Fri, 17 Oct 2014 11:31:24 +0200 Message-ID: <5440E1EC.2080207@gmx.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mout.gmx.net ([212.227.15.19]:51037 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750835AbaJQJb2 (ORCPT ); Fri, 17 Oct 2014 05:31:28 -0400 In-Reply-To: Sender: linux-bcache-owner@vger.kernel.org List-Id: linux-bcache@vger.kernel.org To: linux-bcache@vger.kernel.org Sorry at all. I hit the send button while the wrong address was set - please simply ignore my embarrassing mistake. Sorry and greetings T. Bolten Am 17.10.2014 um 10:48 schrieb T. Bolten: > Hello, > > I'm new in the area of Bluetooth-programming and I hope this is the right place for my question. A web search at the usual web portals was not very helpful due to contradictory statements and I'm "lost" in the Bluetooth Core specification. > > Basically my question related to Bluetooth Low Energy is the following: > > Is it technically possible to connect multiple BLE GATT Clients (in my case smartphones, called in the bluetooth terminology central/master device?) to one BLE GATT Server (in my case a Linux box with Bluez, called in the bluetooth terminology slave or peripheral device?)? > > > The basic idea here is that several different smartphones should simultaneously read (read-only, not write) some self-defined service characteristics to inform the clients about some kind of progress or event state. These progress-information is unfortunately to large to be included in the advertisement package. > > > I have already an implementation that advertises a service with some self defined characteristics but I can connect to this GATT service only with one smartphone - then the advertising stops and I'm unable to connect to this service with an other device. > > After reading a lot of web posts I'm unsure if my idea can work or it is already "broken by design"? > > I am grateful for any suggestion. > > Greetings > T. Bolten