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newbie needs help w/ r/c car art project — Parallax Forums

newbie needs help w/ r/c car art project

ArchiverArchiver Posts: 46,084
edited 2002-04-17 22:55 in General Discussion
I need to build a stamp controlled r/c racecar. I've researched
some robot books and web info but i'm still having trouble
getting started. I want to make a racecar (aesthetically it would
be an r/c chassis stripped of it's outer shell) that: 1). when it
bumps into things (i.e. th e wall) it stops and plays five seconds
of an audio recording, and 2). after the five seconds of audio it
stops the audio tape and reverses it's direction, turns around,
and continues on its way until it bumps into something else and
starts the audio again. then the whole process starts over.
The r/c cars I've looked at have a servo motor for steering and a
dc motor for propulsion. Will this work for my appliciation and if
so, is it possible for one stamp ( i have a basic stamp 2) to
control both the servo and the d/c at the same time? Anyone
have any suggestions on how I should get started? Also, would
it make sense to use a solenoid (controlled by the stamp) to turn
on and off a cassette tape for the audio?
Any info at all would be greatly appreciated!

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-04-17 14:34
    >===== Original Message From basicstamps@yahoogroups.com =====
    Hi:

    www.kronosrobotics.com has a series of articles that were in Nuts and Volts
    magazine which has been really helpful for us in working on our robot car. He
    focusses on an ATOM chip instead of a BASIC STAMP but he also has information
    the STAMP. The first articles are about controlling DC propulsion motors using
    the ATOM or STAMP and an H driver IC but I think he talks about sensors later.



    >I need to build a stamp controlled r/c racecar. I've researched
    >some robot books and web info but i'm still having trouble
    >getting started. I want to make a racecar (aesthetically it would
    >be an r/c chassis stripped of it's outer shell) that: 1). when it
    >bumps into things (i.e. th e wall) it stops and plays five seconds
    >of an audio recording, and 2). after the five seconds of audio it
    >stops the audio tape and reverses it's direction, turns around,
    >and continues on its way until it bumps into something else and
    >starts the audio again. then the whole process starts over.
    >The r/c cars I've looked at have a servo motor for steering and a
    >dc motor for propulsion. Will this work for my appliciation and if
    >so, is it possible for one stamp ( i have a basic stamp 2) to
    >control both the servo and the d/c at the same time? Anyone
    >have any suggestions on how I should get started? Also, would
    >it make sense to use a solenoid (controlled by the stamp) to turn
    >on and off a cassette tape for the audio?
    >Any info at all would be greatly appreciated!
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
  • ArchiverArchiver Posts: 46,084
    edited 2002-04-17 16:53
    No sweat. I am currently building a R/C controlled submarine using a Stamp2
    in the controller and also in the sub. There are a couple of servo
    controller boards designed to talk to the Stamp that control up to 8 servos
    by sending serial data to the controller then it commands the servo.

    For the DC motor they sell electronic speed controls tha plug into a servo
    channel and then you can use either the Stamp to command one of the
    controller channels or have a radio stick control the speed, your choice.

    Mike B.

    Original Message
    From: "silver17audiocraft" <averycording@h...>
    To: <basicstamps@yahoogroups.com>
    Sent: Tuesday, April 16, 2002 7:08 PM
    Subject: [noparse][[/noparse]basicstamps] newbie needs help w/ r/c car art project


    > I need to build a stamp controlled r/c racecar. I've researched
    > some robot books and web info but i'm still having trouble
    > getting started. I want to make a racecar (aesthetically it would
    > be an r/c chassis stripped of it's outer shell) that: 1). when it
    > bumps into things (i.e. th e wall) it stops and plays five seconds
    > of an audio recording, and 2). after the five seconds of audio it
    > stops the audio tape and reverses it's direction, turns around,
    > and continues on its way until it bumps into something else and
    > starts the audio again. then the whole process starts over.
    > The r/c cars I've looked at have a servo motor for steering and a
    > dc motor for propulsion. Will this work for my appliciation and if
    > so, is it possible for one stamp ( i have a basic stamp 2) to
    > control both the servo and the d/c at the same time? Anyone
    > have any suggestions on how I should get started? Also, would
    > it make sense to use a solenoid (controlled by the stamp) to turn
    > on and off a cassette tape for the audio?
    > Any info at all would be greatly appreciated!
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-04-17 22:55
    Should work just fine.

    I hacked one of those Tyco Canned Heat cars for my first robot and did well
    with line following and quick trip (drag race kinda deal)

    The thing to consider is detecting the object and braking long before you
    hit it. If you have a very fast car and your sensors have a very short range
    you will bang up the car and the furniture very fast.

    If you can find one of the Spy Kids vans Radio Shack closed out a few months
    ago you will have a verfy cool platform to hack. Plenty of room under the
    body for all sorts of stuff and a sun roof you can remove and replace with
    an LCD screen.

    As far as the audio, I would look into the Quadravox units Parallax is
    selling.

    Original Message


    > I need to build a stamp controlled r/c racecar. I've researched
    > some robot books and web info but i'm still having trouble
    > getting started. I want to make a racecar (aesthetically it would
    > be an r/c chassis stripped of it's outer shell) that: 1). when it
    > bumps into things (i.e. th e wall) it stops and plays five seconds
    > of an audio recording, and 2). after the five seconds of audio it
    > stops the audio tape and reverses it's direction, turns around,
    > and continues on its way until it bumps into something else and
    > starts the audio again. then the whole process starts over.
    > The r/c cars I've looked at have a servo motor for steering and a
    > dc motor for propulsion. Will this work for my appliciation and if
    > so, is it possible for one stamp ( i have a basic stamp 2) to
    > control both the servo and the d/c at the same time? Anyone
    > have any suggestions on how I should get started? Also, would
    > it make sense to use a solenoid (controlled by the stamp) to turn
    > on and off a cassette tape for the audio?
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