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Subject: 
RE: Sharp GP2D02 code available
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 8 Mar 1999 07:36:04 GMT
Original-From: 
Rien Matthijsse <marobi@direct.a2000ANTISPAM.nl>
Viewed: 
986 times
  
Terry,
Understand that the GP2D05 is a different device than the GP2D02.
For the '05' you can set a analog threshold and the digital output read 1 or
0 depending
whether the distance is according to this set threshold.
The '02' device has a real serial output to send a byte.
This means that it has no use to use the code of Barry to drive your '05'.


Rgrds Rien
rien@direct.A2000.nl

      -----Original Message-----
      From: Terry P. Gathright [mailto:669@worldnet.att.net]
      Sent: Monday, March 08, 1999 2:01 AM
      To: Barry Brouillette; 'handyboard@media.mit.edu'
      Subject: Re: Sharp GP2D02 code available


      Hi Barry,
      I have a GP2D05 from Acroname Inc., Have wired as per
      instructions black
      for gnd., green for Vin, Yellow for Vout, and red for
      Vcc.The pin outs are
      different than the GP2D02.
      Then  installed the diode and connectors for the
      handyboard .as per
      instructions.
      Downloaded the software,loaded the software to the
      hb.(GP2D02_icb and
      TS_gp2.c) Handyboard lcd reads
      <GP2D02: 0 0>.
      Problem is: Where exactly do I plug the digital out
      from the GP2D05 and the
      digital out from the handyboard?

      Thanks in advance
      Terry Gathright

      ----------
From: Barry Brouillette <barry@SGI.com>
To: 'handyboard@media.mit.edu'
Subject: Sharp GP2D02 code available
Date: Wednesday, March 03, 1999 12:46 PM

Hi,
I just posted a short tutorial and software to use
      the Sharp GP2D02
      infrared
ranging sensor with the Handy Board.  This sensor is
      very small,
      relatively
cheap (about $21) and gives an accurate distance •       reading for objects that
are between 10cm and 80cm from the sensor.  It sends
      a very narrow beam
      out
and then triangulates the distance using an array of
      sensors behind a
      second
lens.  The 8 bit digital distance value is then •       clocked into a single
digital input on the Handy Board.  The software, as •       written, requires the
digital outs from the Expansion Board but it could be
      easily modified to
      use
the single digital out available on the standard •       Handy Board.

The program is set up to read two GP2D02's •       simultaneously and store their
values into two global variables which are accessible
      from IC.  These
      global
variables are updated every 73 milliseconds with two
      new distance values.
      It
could easily be extended to talk to more.  There is a •       pointer to the code
off of the main Handy Board home page or you can go •       directly to it at:

http://reality.sgi.com/employees/barry_detroit/GP2D02_1.html

I hope it is of use to lots of  you.

Barry Brouillette




Message is in Reply To:
  Re: Sharp GP2D02 code available
 
Hi Barry, I have a GP2D05 from Acroname Inc., Have wired as per instructions black for gnd., green for Vin, Yellow for Vout, and red for Vcc.The pin outs are different than the GP2D02. Then installed the diode and connectors for the handyboard .as (...) (25 years ago, 8-Mar-99, to lugnet.robotics.handyboard)

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