QuestionQUESTION: Do you by chance know anything about Bluetooth? I'm looking to transmit a mono analog audio signal from point A to point B. I'm having very little luck finding any information on what Bluetooth module I need and a schematic. Can you help me?
ANSWER: Can you be a little more specific. What are you transmitting signal wise, in bandwidth and what device is being used for the resultant signal (speaker or line input)? As far as I know Bluetooth has limited bandwith as well as range. From what distance do you expect to transmit?
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QUESTION: I need to send a signal from a piezo transducer, not sure of the amplitude. I already built a working prototype using a Logitech wireless Bluetooth headphones for mp3 players so I know it works but I want to now design my own Bluetooth transmit and receive circuit to send this signal.
I'm seeing lots of Bluetooth modules out there that specify they are for audio but I'm not sure of what surrounding circuitry is needed. Believe it or not there is very little info on the web about Bluetooth design.
All I need this thing to do is take an analog audio line input signal, send it via Bluetooth then convert it back to an analog output. What I need to do sound like the simplest of the simplest but I can't find any help on line.
At almost at the point of hiring a Bluetooth design house to help me.
AnswerI am no expert on Bluetooth but I can guess that the reason you are seeing very little out there regarding Bluetooth is because the technology is currently used only by companies like Nokia, Motorola, Sony and the like. These companies can afford to build this technology into mobil phones, PC's, and perripheral equipment.
If you have a reason to visit China where they manufacture many of these devices you can probably discover who can provide you with chips to transmit and recieve that signal.
I don't think that it is something you would build yourself other than supplying DC power and input or output signal of a given impedance and voltage. I'll bet that Motorola and the like buy the chips from an OEM supplier.
Look for a supplier.
