View Poll Results: Lets rate the junkbots...best pile of junk wins!

Voters
18. You may not vote on this poll
  • Adrenalynn -Lidar Junkbot

    4 22.22%
  • Crabfu - Putterbot

    4 22.22%
  • Darkback2-lisa

    1 5.56%
  • Electricity-Trash

    5 27.78%
  • Metaform3d-Beetlebot

    4 22.22%
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Thread: Junk Bot Challenge

  1. #31
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    Re: Junk Bot Challenge

    Quote Originally Posted by Adrenalynn View Post
    The brief upshot: It's purpose is to explore the experimental SLAM and hyper-experimental $0.25 LIDAR solution on something safer than the ~300lb Oscar. It's not done yet.
    Awsome to see your junkbot coming together. $0.25 LIDAR? I want one!!!!! In anycase, if your board I'll send you $2.50 you can send me four for my hexapod, and two for my junkbot.

    DB

  2. #32
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    Re: Junk Bot Challenge

    The trick is finding the parts at yard sales. Fortunately I have a friend who's a yardsale junkie. Cell phone cameras work well for yardsale communication.

    I had a huge long post describing it, but the upshot is a formerly dead black and decker "sight line" that I had to replace the driver transistors on [probably reverse polarity killed it] picked up at a yardsale for $0.25. The camera was dead, I had to tear it apart and resolder the internal connections for power. It was pulled from service and scrapped, so it was free. I am using an ATTINY to modulate the laser for differential analysis, so that's another ~$1 all told... So it's really like a $1.25, but that's experimental.
    I Void Warranties�

  3. #33
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    Re: Junk Bot Challenge

    This thread is screaming for tutorials on how to do all of the junk projects people are doing. I'll try to put something together when I have a few hours.

    DB

  4. #34
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    Re: Junk Bot Challenge

    I have a few tutorials that have to get written ahead of any others, I'm afraid. First one is wireless RFID with the Parallax...
    I Void Warranties�

  5. #35
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    Re: Junk Bot Challenge

    I can't wait. I have a parallax board that I wish I new anything about using. Ofcourse I'd have to find a computer with a serial port first...then learn how to code...get a compiler...Oh to hell with it...I'll just stick with MAX/MSP

    I got Lisa balanced again. I had to move the computer mount back a few centimeters. She is still struggling to move...I've got a few servo's from ebay coming tomorrow. They are rated to be really high torque, but I'm not sure how realistic the claims of the seller are. I'll find out tomorrow I guess.

    Oh well either way, $2.50 I guess you get what you pay for. I owe Tyberious thanks for the tip on those by the way.

    DB

  6. #36
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    Re: Junk Bot Challenge

    I tried out the $2.50 servos. They are digital, should work fine, but don't. I'm not sure what is wrong. I'll test them again tomorrow. seams like they should work. but they don't. They do something funny. They sit still for a few seconds, then spin very quickly to the desired position.

    Oh Well...you get what you pay for.

    DB

  7. #37
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    Re: Junk Bot Challenge

    Ofcourse I'd have to find a computer with a serial port first...
    Have you considered using an Serial to USB converter? Or... better yet, Serial to bluetooth?

    �In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed�
    - Charles Darwin

  8. #38
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    Re: Junk Bot Challenge

    Or for $10, just put two real honest-to-goodness 16C550 UARTS in your machine, with real honest-to-goodness flow-control, and call it a day?

    http://www.microbarn.com/details.aspx?rid=100216
    I Void Warranties�

  9. #39
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    Re: Junk Bot Challenge

    I think I would have a hard time fitting a 16C550 UARTS into a sony vaio VGN-180p UX.

    Though I've been thinking...USB to serial adaptor?
    DB

  10. #40
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    Re: Junk Bot Challenge

    It has a CF card slot right? You can also get uarts for CF and PCMCIA.
    I Void Warranties�

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