It's been talked about before, but I'll bring it up again cause it seems like there is actually something happening.
Bluetooth 4.0 hardware in phones:
Samsung Galaxy S II
Can anyone confirm that Bluetooth 4.0 is actually implemented in software and working in any of the above phones?
Best regards from Denmark,
N9: I doubt it, I think they were late and it never made it into Meego 1.2
iPhone 4S: ATT client APIs supported: https://developer.apple.com/library/ios/#documentation/CoreBluetooth/Reference/CoreBluetooth_Framework/_index.html
Galaxy S II: Hardware yes, but Gingerbread has no support for BLE
RAZR: No idea
In reply to introiboad:
For Galaxy S II, Broadcom interestingly offers some Android code in a Google code project that could be useful:
(I haven't yet reviewed or tried it.)
For Droid RAZR, yes according to Motorola press release announcing the product:
(I have no clue as yet as to the Droid RAZR Bluetooth chip set.)
In reply to Steve Bain:
Thanks for the information !
I have some basic question about these DUAL MODE bluetooth chips. I understand that they CAN NOT communicate with BR/EDR bluetooth and LE bluetooth at the same time.
Is this correct ?
In reply to Sasha Kalmanovich:
You are right.
In reply to kazola:
So this means I have to configure somehow the phone to switch between BR/ EDR mode to LE mode.
I did not find how to do it in Broadcom's API. Any ideas ?
And a more general question :
How will the user experience of a smart phone user look like ? If someone uses a bluetooth device like a headset, then one can't communicate with LE devices ?
Bluetooth channels are 1 MHz in bandwidth.
BLE channels are 2 MHz in bandwith. If they do not duplicate the transceiver stage, I do not think you can work simultaneously since the RF will be busy and used in a different manner, even if the circuitry is shared.
Are there any members, who have succeeded in connecting CC2540 Keyfob with Droid RAZR? If yes, kindly describe the steps.,
Your help is much appreciated.,
Thanks and best regards,
In reply to nagaraj hegde:
I haven't yet worked with the RAZR, but this link on a Motorola web site might be a good place to start:
I have "connected" the cc2540 with the RAZR, by using the connect to device from the android menu. I saw in the packet sniffer that a link was established, and then the RAZR started a pairing process which my application did not support. I dont know how to control the BLE stack on the RAZR except the basic API Motorola provides. But the BLE link layer seems to work.
You are right that a dual-mode radio cannot simultaneously receive BLE and BR/EDR unless it has duplicated reception stages. However, since the radio in the phone is always the BLE master, it is able to adjust the timing of the BLE connection events so that they don't overlap with BR/EDR events. So, in practice, you can keep several links up at the same time (BLE and BR/EDR), even though you cannot receive (or transmit) two packets simultanously.
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