Android Acceptable Connection Parameters

RE: Android Acceptable Connection Parameters

FormerMember — Mon, 20 Jun 2016 06:02:19 GMT

I just tested here with Nexus 5 running Android 6.0.1, and it accepts at least 20 seconds connection supervision timeout.

RE: Android Acceptable Connection Parameters

Dave_couling — Fri, 17 Jun 2016 18:07:31 GMT

Hi Kristin,

Yes I understand this spec. Apple caps the maximum Connection supervision timeout to 6 seconds. So I was wondering if Androids accept longer Connection supervision timeouts than 6 seconds.

Thanks,

RE: Android Acceptable Connection Parameters

FormerMember — Fri, 17 Jun 2016 09:12:30 GMT

I would think which connection parameters an Android phone accepts may depend on the phone. I would recommend you to do some testing.

In order to save power on the peripheral side, it is also an option for the peripheral device to use slave latency. When using slave latency, the peripheral device does only need to wake up every "slave latency"th connection interval. The slave latency can be in the range from 0 to 499. It means that in the extreme case, the peripheral device does only need to wake up every 499th connection interval.

Note that the minimum connection supervision timeout is a function of connection interval and slave latency: Connection supervision timeout > (slave latency + 1) x connection interval x 2 (Bluetooth Core Specification 4.2, Vol 6, Part B, chapter 4.5.2)