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Thread: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    @lnxfergy my goal was to get a small-ish sensor that could interface nicely with other processors. So, I was intending for the whole scanning module to be preserved. The scanning system seems nicely compact and probably worth preserving. Do you agree?



    @Nammo, yeah, based on this picture from RobotShop (above), it appears that the scanning motor is separate from the detection circuitry. I'm hoping that simple distance info is directly calculated in this unit and we can just read the results from those 4 wires that come off - while moving the motor to scan.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Somewhere I read that those 4 wires are COM port. BUt I don't rememeber where I read it.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    RobotNV,

    I think you're right. I was just reading the paper front ICRA2008 (http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4) and the block diagram shows a Blackfin DSP with a RS232 output to the real world.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Quote Originally Posted by RobotNV View Post
    Somewhere I read that those 4 wires are COM port. BUt I don't rememeber where I read it.
    The silkscreen on the circuit board has the wires labeled TX, RX, GND, and (something.3) so its probably safe to bet they are for serial UART.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Just got an email from RobotShop. They are upping the bounty (again!) and offering to refund the cost of the robot, if you buy it from them!
    http://www.robotshop.com/ProductInfo.aspx?pc=RB-Nto-01
    No excuses now.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    We had a pretty big hiccup on the forums and lost the last day worth of posts, however I have this thread backed up and I'll do my best to restore it.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Mon 11/22/2010 12:32 PM
    Quantum Posted:



    SparkFun has almost hacked it, they just posted this today.
    http://www.sparkfun.com/news/490
    Last edited by DresnerRobotics; 11-24-2010 at 12:15 PM.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Mon 11/22/2010 1:22 PM
    gallamine has just posted:


    Awesome, thanks for the update Quantum! From the looks of things it just needs some calibration and plotting now. So close!


    Also, in other news, RoboDynamics is offering $200 to the first person that uses the sensor with a SLAM algorithm for mapping and navigating from point A to B in a map: http://twitter.com/robodynamics/status/6109560045572096

    So, that means there's like $1000 up for grabs.

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Mon 11/22/2010 1:33 PM
    lnxfergy has just posted:


    Quote Originally Posted by gallamine
    Awesome, thanks for the update Quantum! From the looks of things it just needs some calibration and plotting now. So close!
    I'm not sure about that -- I took a look at their captures, and there doesn't appear to be any sync data to tell you when a new scan is starting.... The data rate also seems a bit off, something like 2 data points per millisecond (where we would expect 360x10 data points per second).

    Is anyone besides the Sparkfun guys really working on this?

    -Fergs

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    Re: The Open Lidar Project - Hack the Neato XV-11 Lidar for a $200 Bounty!

    Mon 11/22/2010 1:44 PM
    gallamine has just posted



    Fergs,
    Looking at the sparkfun scans, it looks like 1 byte per 0.1 ms - 10 kbyte/sec. That'd give roughly 3 bytes per sensor reading (360*10/sec = 3.6 kreadings/sec).

    Also, I figured the rangefinder is running at a constant rate, and it's up to the user to rotate the assembly at a fixed rate and determine when it rotates through a full 360 degrees.

    Is anyone besides the Sparkfun guys really working on this?
    I'm curious too

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