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GP2D02 Sharp IR Sensor — Parallax Forums

GP2D02 Sharp IR Sensor

ArchiverArchiver Posts: 46,084
edited 2001-11-09 16:33 in General Discussion
Hi there!

Well, i haven't had the chance to work on the transceivers for our
project yet, because we're trying to get this IR sensor to work. Can
anyone out there help us? Its not working! We've downloaded code,
and connected the sensor to the diagram at acroname.com's site, and
it doesn't want to work.

Thanks

Debu

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2001-11-08 23:25
    A couple of quick ideas.
    First
    What happens if you just have 5v, gnd, a clock ( a switch)?

    Second: Take a look at the following pages for ideas..
    http://www.acroname.com/robotics/parts/R19-IR02.html
    http://www.hobbyrobot.com/info/gp2d02/index.html

    Third: Provide more detail. What does it not do? What does it do?

    Phil
    --- In basicstamps@y..., debu_sen_22@y... wrote:
    > Hi there!
    >
    > Well, i haven't had the chance to work on the transceivers for our
    > project yet, because we're trying to get this IR sensor to work.
    Can
    > anyone out there help us? Its not working! We've downloaded code,
    > and connected the sensor to the diagram at acroname.com's site, and
    > it doesn't want to work.
    >
    > Thanks
    >
    > Debu
  • ArchiverArchiver Posts: 46,084
    edited 2001-11-09 06:05
    Hi

    Ok, our problem is that when we try the code from Acroname, we don't
    really get something that makes sense. We do get a bunch of random
    numbers, but, they don't make logical sense.

    We were also wondering what exactly does pin 2 and pin 4 of the IR
    sensor do? Does the output pin just give a 1 or 0 indicating it has
    sensed something, or does it return an actual distance?

    This is another code that we are trying to get to work:

    '{$STAMP BS2sx}
    Main:
    high 0 'pin 0 is clock, connected to pin2 on sensor, high turns
    sensor off
    pause 3
    low 0
    pause 56
    r1:
    if in1=0 then r1 'pin 1 connected to pin4 on sensor
    debug "Object Detected",cr
    pause 1000
    goto Main


    but, the thing is, all we get is 'object detected' to constantly
    print...even if there is NO object in front of the sensor...we are
    thinking that the pin is tied to low, and we are unsure of why?

    Thank you

    Debu
  • ArchiverArchiver Posts: 46,084
    edited 2001-11-09 16:33
    > Hi
    >
    > Ok, our problem is that when we try the code from Acroname, we don't
    > really get something that makes sense. We do get a bunch of random
    > numbers, but, they don't make logical sense.
    >
    > We were also wondering what exactly does pin 2 and pin 4 of the IR
    > sensor do? Does the output pin just give a 1 or 0 indicating it has
    > sensed something, or does it return an actual distance?

    You might like to download the documentation from our DIRRS kit (uses the
    GP2D02 sensor). Our manual answers all your questions and we haven't had
    any problem with the Stamp code that comes with it. You should note that
    our kit uses 2 resistors instead of the diode.

    You can find it in our downloads section, under sensors:

    http://www.hvwtech.com/downloads.htm


    Mark Hillier
    President, HVW Technologies Inc.
    Mark@H...
    Tel[noparse]:([/noparse]403)730-8603 Fax[noparse]:([/noparse]403)730-8903
    http://www.HVWTech.com
    See our NEW BASIC Stamp Prototyping tools !
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