May 2013 - Bluetooth-dev - lists.apple.com

Re: device scanning only finds devices when using NIL for UUID list
by Khaos Tian 17 May '13

17 May '13

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device scanning only finds devices when using NIL for UUID list
by Ed 17 May '13

17 May '13

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Can't write value from Central to Peripheral using CoreBluetooth on iOS
by Peter Moberg 17 May '13

17 May '13

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Re: (Re-) Connecting when peripheral not present
by András Kovi 16 May '13

16 May '13

If you can retrieve it then it exists for iOS. The connection request is going to stay there waiting for the peripheral to show up until the end of time. There is no timeout on these requests. Regards. Andras Sent from the iPhone On May 16, 2013, at 12:36 AM, Rick Mann <rmann(a)latencyzero.com> wrote: > What's the expected behavior when attempting to connect to a nonexistent peripheral? That is, I've connected to something before, then later retrieve it from the CBCentralManager, attempt to connect, but it's powered off or out of range. Will connection just time out? > > What if the device comes into range while connecting? Will iOS see it and connect? > > Given how flaky the simulator is, I'm not sure if it's misbehaving or not. > > -- > Rick > > > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/bluetooth-dev/allprog%40gmail.com > > This email sent to allprog(a)gmail.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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(Re-) Connecting when peripheral not present
by Rick Mann 15 May '13

15 May '13

What's the expected behavior when attempting to connect to a nonexistent peripheral? That is, I've connected to something before, then later retrieve it from the CBCentralManager, attempt to connect, but it's powered off or out of range. Will connection just time out? What if the device comes into range while connecting? Will iOS see it and connect? Given how flaky the simulator is, I'm not sure if it's misbehaving or not. -- Rick _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Message browsing using Bluetooth MAP in iOS6
by Peter Sichel 14 May '13

14 May '13

I'm trying to implement message browsing from the Mac to an iPhone running iOS6. The BT qual page for iOS6 lists message browsing as supported on the MSE, https://www.bluetooth.org/tpg/showPICS.cfm?3A000A5A005C504D58585414403B0C0D… However, when I request a message listing of the folder named "inbox" or "sent", I always receive an empty list as the response. <MAP-msg-listing version = "1.0"></MAP-msg-listing> Message notification works works as expected. Requesting a folder listing works and returns "inbox", "sent", and "deleted". It's only the message listing that isn't working as expected. Is there some parameter or step I am missing that would allow me to browse messages on the iPhone? Alternatively, is this a known limitation? - Peter Sichel Sustainable Softworks -- Phone Call Wizard for Hire. Phone Amego: The Missing Mac Telephony Bridge http://www.sustworks.com/pa_guide/index.html _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: data transmission rate...to slow...
by John Earl 14 May '13

14 May '13

Frederic, there is only one packet of up to ~20 bytes transmitted every two connection events if you use reliable data transfer. If you want to increase that to ~ four packets every connection event, you have to use unreliable data transfer (WriteWithoutResponse / Notification) and have to add reliability in your app layer. Note that WiFi interferes with BLE, disabling it should net you a small boost in throughput. These are the throughputs I could achieve with iPhone as central and dedicated peripheral: http://www.scriptreactor.com/conn_interval-throughput.pdf Etan _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: data transmission rate...to slow...
by William Henderson 14 May '13

14 May '13

Frederic, there is only one packet of up to ~20 bytes transmitted every two connection events if you use reliable data transfer. If you want to increase that to ~ four packets every connection event, you have to use unreliable data transfer (WriteWithoutResponse / Notification) and have to add reliability in your app layer. Note that WiFi interferes with BLE, disabling it should net you a small boost in throughput. These are the throughputs I could achieve with iPhone as central and dedicated peripheral: http://www.scriptreactor.com/conn_interval-throughput.pdf Etan _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: data transmission rate...to slow...
by Khaos Tian 14 May '13

14 May '13

Frederic, there is only one packet of up to ~20 bytes transmitted every two connection events if you use reliable data transfer. If you want to increase that to ~ four packets every connection event, you have to use unreliable data transfer (WriteWithoutResponse / Notification) and have to add reliability in your app layer. Note that WiFi interferes with BLE, disabling it should net you a small boost in throughput. These are the throughputs I could achieve with iPhone as central and dedicated peripheral: http://www.scriptreactor.com/conn_interval-throughput.pdf Etan _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: data transmission rate...to slow...
by William Henderson 14 May '13

14 May '13

Frederic, there is only one packet of up to ~20 bytes transmitted every two connection events if you use reliable data transfer. If you want to increase that to ~ four packets every connection event, you have to use unreliable data transfer (WriteWithoutResponse / Notification) and have to add reliability in your app layer. Note that WiFi interferes with BLE, disabling it should net you a small boost in throughput. These are the throughputs I could achieve with iPhone as central and dedicated peripheral: http://www.scriptreactor.com/conn_interval-throughput.pdf Etan _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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