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rf telemetry question

Discussion in 'Electronic Basics' started by Carl Banks, Aug 7, 2004.

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  1. Carl Banks

    Carl Banks Guest

    Ok, here's my situation:

    I have this project where I would like to do some remote sensing of
    16-20 analog inputs, about ten samples per second, and receive it in
    real time on my PC. Don't need much precision; 8 bits is plenty.
    Range is less than 30 feet.

    After reading up a bit, I'm thinking the most straightforward way is
    to use some microcontroller with a digital RF transmitter, say for
    example the rfPIC12C509AF, and an ADC to collect and transmit data
    cyclically to a reciever connected to my PC.

    It's the receiver I'm wondering about. I kind of expected this to be
    a rather typical use for a transmitter (send telemetry to your
    computer), so I kind of expected to see some receievers that I could
    connect to a PC, say via a serial port, obviating the need to build
    one myself. But I can't find any.

    So, can anyone point me to something that does what I need? More
    generally, does this sound like a good strategy? I'm open to

    In case I've successfully managed to hide the fact that I haven't done
    anything like this before, I'd like to keep it straightforward. I
    have to order all this stuff from scratch. I do know the equations
    very well, but I have hardly any experience actually wiring stuff

    Thank you for any help,
  2. John Schuch

    John Schuch Guest

    Carl Banks wrote:


    Do a web search on "RF modems". There are a lot of companies that make
    fairly inexpensive units. You could use a cheaper PIC, and output RS-232
    into an RF modem linked to your PC. As a bonus, your PC could also talk
    to your PIC and do any kind of control you might need.

  3. Joe Soap

    Joe Soap Guest

  4. Tim Auton

    Tim Auton Guest

    Does exactly what it says on the tin.

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