Shop OBEX P1 Docs P2 Docs Learn Events
Scott Edwards sonar project — Parallax Forums

Scott Edwards sonar project

ArchiverArchiver Posts: 46,084
edited 2000-10-20 20:45 in General Discussion
Here's one for anyone familiar with Scott Edwards' sonar project for
the BS2.I don't see anywhere in the book (Programming and Customizing
the Basic Stamp Computer) what the maximum distance the device could
detect at might be.He does say that various influences make it
difficult or immpossible to convert the scaled units to
inches/centimeters of absolute distance,but I'm not so sure that
refers to being unable to give a good ballpark figure of max
distance.Can anyone enlighten me?

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-10-08 21:56
    If I recall correctly, the sonar project in Scott's book didn't
    have as much range as the project in the Basic Stamp I Application
    Note (#12 Sonar Rangefinding). That one measures from 1 to 12 feet.
    I haven't tried either one but would be interested to hear how it
    works for you.

    HTH
    Patrick Murphy

    At 08:26 AM 10/6/00 -0000, you wrote:
    >Here's one for anyone familiar with Scott Edwards' sonar project for
    >the BS2.I don't see anywhere in the book (Programming and Customizing
    >the Basic Stamp Computer) what the maximum distance the device could
    >detect at might be.He does say that various influences make it
    >difficult or immpossible to convert the scaled units to
    >inches/centimeters of absolute distance,but I'm not so sure that
    >refers to being unable to give a good ballpark figure of max
    >distance.Can anyone enlighten me?
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-20 20:45
    I finally found the range for Scott Edwards' sonar project - it
    is listed in the BS2 code (page 174) as short-range (10"), with
    best accuracy at 2" to 7". This could probably be coupled with
    the sonar setup in Basic Stamp I Application Note #12 which starts
    at one foot.
    HTH

    How is the sonar project coming along? I recently bought a working
    ProMeter that has a range of up to 50 feet with a claimed +/- 0.5%
    accuracy.

    Patrick Murphy

    At 03:56 PM 10/8/00 -0500, you wrote:
    >
    >If I recall correctly, the sonar project in Scott's book didn't
    >have as much range as the project in the Basic Stamp I Application
    >Note (#12 Sonar Rangefinding). That one measures from 1 to 12 feet.
    >I haven't tried either one but would be interested to hear how it
    >works for you.
    >
    >HTH
    >Patrick Murphy
    >
    >At 08:26 AM 10/6/00 -0000, you wrote:
    >>Here's one for anyone familiar with Scott Edwards' sonar project for
    >>the BS2.I don't see anywhere in the book (Programming and Customizing
    >>the Basic Stamp Computer) what the maximum distance the device could
    >>detect at might be.He does say that various influences make it
    >>difficult or immpossible to convert the scaled units to
    >>inches/centimeters of absolute distance,but I'm not so sure that
    >>refers to being unable to give a good ballpark figure of max
    >>distance.Can anyone enlighten me?
Sign In or Register to comment.