transmit sinewave signal using bluetooth technology

Thread Starter

wantoknow

Joined Mar 24, 2008
2
I would like to know how to use bluetooth technology to transmit a chain of sinewave pulses from a magnetic sensor. The amplitude of these pulses will be 100 to 500 milivolts This signal would then be received by a bluetooth receiver circuit.
 

mrmeval

Joined Jun 30, 2006
833
Bluetooth is digital. You'll need to convert your information to a digital format for transmission. That will require a chip of some sort to convert the analog signal to digital, probably a microcontroller to receive that and convert it to something that can be sent bluetooth.

http://www.arduino.cc is a microcontroller coupled with the needed peripheral parts that can do the ADC and handle other tasks. The 10bit ADC can do most things but the arduino can talk to many ADC chips if you need better.

Bluetooth only works about 10 meters away as it's very short range.
http://www.arduino.cc/en/Main/ArduinoBoardBluetooth

This is better than Bluetooth or Zigbee when considering range
280m (250Kbps); 150m (1Mbps) and price though you will need two and one will need an interface (arduino again or some other circuit) to talk to a PC
http://store.qkits.com/moreinfo.cfm/TXRX24G

Arduino library for it, be careful as the device runs on 3.6v.
http://timothytwillman.com/?page_id=169

There a pic/pickaxe/8051/arm and other microcontroller solutions and they are getting affordable.
 
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