Keep an eye on which thread or queue the NSTimer is scheduled on. If you run your Bluetooth code on another queue than the main queue, there is a big chance the timer will not be executed. GCD worker threads don't use NSRunLoop which is necessary to run a NSTimer. Joakim -----Original Message----- From: bluetooth-dev-bounces+jfernstad=stratos.com@lists.apple.com [mailto:bluetooth-dev-bounces+jfernstad=stratos.com@lists.apple.com] On Behalf Of Charles Y. Choi Sent: Wednesday, October 02, 2013 10:51 AM To: bluetooth-dev@lists.apple.com Bluetooth Subject: Re: Connection Interval parameter on iOS. Srikanth - No, there is no support for connection interval timeouts in CoreBluetooth. That said, it's straightforward enough to implement a watchdog timer. The link below illustrates how to go about doing this. https://github.com/kickingvegas/YmsCoreBluetooth/blob/master/YmsCoreBluetoot... Charles On Oct 2, 2013, at 7:15 AM, srikanth.bonthapally@wipro.com wrote:

Is there any iOS corebluetooth function to set the connection interval timeout.

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