BLE background scanning rate
BLE background scanning rate
- Subject: BLE background scanning rate
- From: Sam Kirchmeier <email@hidden>
- Date: Tue, 24 Apr 2012 22:32:55 -0400
- Acceptlanguage: en-US
- Thread-topic: BLE background scanning rate
Hi, all. Working on an app where we're scanning for BLE peripherals in the background.
We have a proof of concept app up and running, but we're seeing some long, seemingly random times between when the app goes into the background and when a peripheral is discovered. Our goal is to minimize discovery time when the app is running in the background.
We've tried various advertising rates on the peripheral side. Even when we advertise every 20ms, we see occasional 4-5 second delays until the peripheral is discovered.
When the peripheral advertises itself every 50ms, we've seen delays as long as 30 seconds before discovery. (Delays vary from 1 second to 30 seconds.)
Anyone else seeing this kind of behavior? Does iOS randomize or sleep between BLE scans in the background? Any insight would be helpful.
Thanks, Sam |
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Bluetooth-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden