AVR-Chat

On Feb 16, 2008, at 10:39 AM, Tom Becker wrote:

> Do I misunderstand that Bluetooth will not deliver received data that
> has not been validated?  A few years ago we did some simple range
> testing with several Bluetooth radios.  At a distance that was greater
> than the expected range, a packet was handed to each transmitter  
> and the
> radio was walked toward the receiver until the packet appeared at the
> receiver output.  Each time, as I recall, the correct data was
> eventually produced.
>
> Is not Bluetooth "error free" if it is communicating at all?


A problem with Bluetooth is that it has tried to be everything to  
everyone, and got so bloated no one without a huge budget can afford  
its overhead.

Based on my readings several years ago Bluetooth has accurate  
delivery methods for what you describe above but also has guaranteed- 
rate delivery which sacrifices data integrity. Drop a few bits in  
your Bluetooth headset and the last thing you want is for them to be  
delivered accurate but late. You'd rather just drop them and move on.

--
David Kelly N4HHE, dkelly@HiWAAY.net
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Whom computers would destroy, they must first drive mad.