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Pic/Stamp basic info?

Discussion in 'Misc Electronics' started by James, Jan 22, 2004.

  1. James

    James Guest

    Up till now, I have made a couple of projects for a kit car such as a shift
    light and a speed-dependant switch, but these have all used the freq-voltage
    convertor > comparator method with some trial and error. While I've had some
    success, I am wondering if I would be better placed to "go digital" and use
    some of the pic/basic chips I have seen.
    For instance, if there is a programming language that is basic-esque (I'm ok
    at vb, not c though) I assume it would be (for a 4 mark shift light):

    if pulse/sec > 83 then output1 = on
    if pulse/sec > 91 then output2 = on
    if pulse/sec > 100 then output3 = on
    if pulse/sec > 108 then output4 = on

    obviously thats VERY over simplistic but you get the drift!

    Anyway, any good sites I should be looking at? How would I interface a
    pulsed signal into the chip, and are there "counter" type options so I could
    bung the current count into a variable for comparison? Also, there seem to
    be hundreds of different chips available...

    I am in the UK and I see Maplins do a couple of Basic "student" kits, would
    these be any good?
    Cheers,
    James.
     
  2. CWatters

    CWatters Guest

    The chances are someone else has already done something similar to what you
    are trying to do. I'm sure BASIC is available. Repost your question to the
    Microchip Discussion Forum at http://forum.microchip.com/

    I got started programming PIC's some years ago using:

    a) the free assembler from Microchip http://www.microchip.com/1010/index.htm

    b) a good quality programmer. I got the Warp 13 from
    http://www.newfoundelectronics.com/ but these days you can very easily
    make your own if you plan to stick to versions of the PIC that have in
    circuit programming (eg 16Fxxx series for example) Try a web search for a
    PIC programmer design.

    c) a "PIC Project board" from Farnell (part 120-054) but perhaps you already
    have a small breadboard system?

    d) The book "A Beginners Guide to the Microchip PIC" by Nigel Gardner which
    came with free S/W and examples (Caution: If you buy this book make you get
    a recent edition as the original was written in 1994!)

    I just purchased a C compiler which comes with a large number of example
    programs for everything from "measure pulse widths" to an "example web
    server".
     
  3. James

    James Guest

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