transmit sinewave signal using bluetooth technology

Discussion in 'The Projects Forum' started by wantoknow, Mar 24, 2008.

  1. wantoknow

    Thread Starter New Member

    Mar 24, 2008
    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.
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    Short-range application? Bluetooth is a bit limited -

    Don't think you're going to have much luck with the original signal. You will probably find that changing from AM with a voltage to frequency converter will be necessary.
  3. mrmeval

    AAC Fanatic!

    Jun 30, 2006
    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. 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.

    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

    Arduino library for it, be careful as the device runs on 3.6v.

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

    Thread Starter New Member

    Mar 24, 2008
    Thank you very much you have provided the information that I need.