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Re: Bluetooth-dev Digest, Vol 12, Issue 73
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Re: Bluetooth-dev Digest, Vol 12, Issue 73

  • Subject: Re: Bluetooth-dev Digest, Vol 12, Issue 73
  • From: Matthew Chung <email@hidden>
  • Date: Sun, 16 Aug 2015 11:21:14 -0700
I'm doing a test between two ios devices running ios 8.4. I'm seeing that even after calling

https://developer.apple.com/library/prerelease/ios/documentation/CoreBluetooth/Reference/CBCentralManager_Class/index.html#//apple_ref/occ/instm/CBCentralManager/cancelPeripheralConnection:

my disconnect delegate callback is not always being called.

https://developer.apple.com/library/prerelease/ios/documentation/CoreBluetooth/Reference/CBCentralManagerDelegate_Protocol/index.html#//apple_ref/occ/intfm/CBCentralManagerDelegate/centralManager:didDisconnectPeripheral:error:

has anyone else seen this? is there a workaround or does something else need to be done to disconnect a peripheral?





On Tue, Aug 4, 2015 at 12:00 PM, <email@hidden> wrote:
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Today's Topics:

   1. iPhone can't reconnect and communicate to paired bluetooth
      low energy device (Janis Innuss)
   2. Re: iPhone can't reconnect and communicate to paired
      bluetooth low     energy device (Mahboud Zabetian)


----------------------------------------------------------------------

Message: 1
Date: Tue, 04 Aug 2015 07:25:38 +0000 (GMT)
From: Janis Innuss <email@hidden>
To: email@hidden
Subject: iPhone can't reconnect and communicate to paired bluetooth
        low energy device
Message-ID: <email@hidden">email@hidden>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

I have got an iPhone bluetooth connection problem. Step by step my problem:

I discover, connect and pair (bond) my iPhone to BLE device.

After some characteristic communication I manually leave the app and disconnect.

PROBLEM. When I try to pair and communicate again it is impossible because iPhone shows "connected" or either "not connected" to device in "my devices" section in settings. When I try to search for devices in app iPhone can't find anything because iPhone acts like the device is already found.

How to solve this problem? Because now the only way is to forget the device in settings (delete from "my devices" manually) and only then it is possible to pair and connect..
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Message: 2
Date: Tue, 04 Aug 2015 01:27:08 -0700
From: Mahboud Zabetian <email@hidden>
To: Janis Innuss <email@hidden>
Cc: email@hidden
Subject: Re: iPhone can't reconnect and communicate to paired
        bluetooth low   energy device
Message-ID: <email@hidden">email@hidden>
Content-Type: text/plain; charset="utf-8"

Sounds like you are mixing Bluetooth prior to 4.0 and BLE?

I’ve only done BLE, and the devices we talk to (all BLE), do not get paired or connected to in the settings.  We connect to them in our app, disconnect when we’re done, and reconnect when we need to.  The Settings app never comes into play with these BLE devices.  Pairing is more of a non-BLE action.  The beauty of BLE is that connections can come and go - even in cases where you have multiple devices, some of which have never been seen before or never will be seen again.  For example, let’s say I wanted to control the temperature in a BLE controlled rental car.  I’m not expecting to be in that car very long, or maybe never again, so I don’t want to maintain any history or “pairing” - I just want to control it while I am in the car, and forget about it once I’ve left it.  Same with the next car.

-mahboud


> On Aug 4, 2015, at 12:25 AM, Janis Innuss <email@hidden> wrote:
>
> I have got an iPhone bluetooth connection problem. Step by step my problem:
>
> I discover, connect and pair (bond) my iPhone to BLE device.
>
> After some characteristic communication I manually leave the app and disconnect.
>
> PROBLEM. When I try to pair and communicate again it is impossible because iPhone shows "connected" or either "not connected" to device in "my devices" section in settings. When I try to search for devices in app iPhone can't find anything because iPhone acts like the device is already found.
>
> How to solve this problem? Because now the only way is to forget the device in settings (delete from "my devices" manually) and only then it is possible to pair and connect..
>
> _______________________________________________
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End of Bluetooth-dev Digest, Vol 12, Issue 73
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--
Matt Chung
Versame
310-210-0956
email@hidden
www.versame.com
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