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Type: Posts; User: jamma

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  1. Replies
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    Re: Propellor DMX controller/Volunteers Wanted

    Possible derail here, but JonnyMac: have you used DMX to control EL Wire? There really isn't anything out there, but seems a natural fit.
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    Re: Propeller II update - BLOG

    Well, if the Prop II can be the heart of a single board computer that runs Linux and can decode Blu-ray all for $40, Parallax might have an unqualified hit on their hands: ...
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    Re: QuadX - my latest Propeller with Propellers

    Why has no one said this yet: Your new frame looks amazing (post #29)! Ever thought of selling the CNC'd bits? Have you been able to stick a camera on it yet to see it's suitability as a FPV frame...
  4. Re: QuadCopter (Tri/Quad/Hex/Octa) - object standards for values ranges???

    Hi quad team:

    Great to see all the work being done here. As I'm about to dive head first into the quad arena and am a fan of the prop, I have a couple of quick observations.

    As I see it, there...
  5. Thread: CNC Machines

    by jamma
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    Re: CNC Machines

    Yet another CNC enthusiast here. Currently, I'm converting a Sharp knee mill (Bridgeport clone), which was fitted with ballscrews and X & Y servos back in the 90s, but the controller is totally shot....
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    Spinneret well suited for EtherCAT?

    Researching industrial robotics control systems, I came across EtherCAT. That's Ethernet for Control Automation Technology, a high-performance Ethernet-based fieldbus:...
  7. Re: Quad/Hexa-Copter using Propeller, Gyros, Accelerometers, Compass, Pressure & GP

    You guys seen: http://www.r4robotics.com/ ? Nice design there.
  8. I second the suggestion of the Victors (Vex/IFI)...

    I second the suggestion of the Victors (Vex/IFI) for a motor that size, although the Sidewinder from RobotPower is also interesting. Have a look here for a fairly comprehensive list of non-Parallax...
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    Work in SF, live in the People's Republic of...

    Work in SF, live in the People's Republic of Berkeley California, so the Bay Area works for me (and I can make Rocklin an honorary member of the Bay Area for such an event).
  10. Thread: Quad dro

    by jamma
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    Could it be used to work with rotary endocers...

    Could it be used to work with rotary endocers like this:

    http://www.usdigital.com/products/e3/

    e.g. 2 channel quadrature TTL squarewave outputs. This is what I'm thinking of putting on my mill.
  11. Thread: Fun with relays

    by jamma
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    What the application? And where'd you get the...

    What the application? And where'd you get the cool aluminum project case?
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    Cool stuff, Graham. Any plans to integrate with...

    Cool stuff, Graham. Any plans to integrate with Mach 3? Has Art opened up an API for pulse generators that you could hook into?
  13. Is the telnet site still up? Doesn't seem to work...

    Is the telnet site still up? Doesn't seem to work for me.
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    Go, Dog, Go!

    Go, Dog, Go!
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    The ESC was a lot of fun. Lots of goodies on...

    The ESC was a lot of fun. Lots of goodies on display and the Al Gore speech was quite inspiring (and I·didn't really have·strong feelings for·Gore·either way·going in). It was great to meet other...
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    Other links I found useful in my research: ...

    Other links I found useful in my research:

    http://tom.pycke.be/mav/71/kalman-filtering-of-imu-data

    http://academic.csuohio.edu/simond/courses/eec644/kalman.pdf

    Be warned: A too literal...
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    Kalman filter for the prop?

    Based on responses in the PEKbot thread, there are more than a few of us interested in creating balancing devices of one sort or another (typically robots, but·I'm looking to do a skateboard). The...
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    I've been following the FTIR touchscreen...

    I've been following the FTIR touchscreen movement·with great interest for some time. Good place to start:

    http://dundee.cs.queensu.ca/wiki/index.php/Building_a_Multi-Touch_Sensitive_Table

    This...
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    View Post

    FYI, QFN part link goes to the DIP40 page.

    ·
  20. Most of the AVR folks use Bray's terminal...

    Most of the AVR folks use Bray's terminal (officially Br@y++ Terminal). I think it's official home is here:
    http://bray.velenje.cx/index.php?page=elec, although I've always downloaded it from Smiley...
  21. Circuit design for the motivated beginner: How to proceed?

    Electronics are a new area of interest for me (my skills lean toward mechanical design and fabrication, although I'm relatively comfortable with programming). A CNC project has forced me to dive head...
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    Pretty cool, Phil. Extrapolating Bill's app and...

    Pretty cool, Phil. Extrapolating Bill's app and applying it to a hot issue, you could set up a few thousand of these across the Mexican border to alert a central monitoring site of human movement in...
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    Wasn't there talk of the Hydra having quad props?

    Wasn't there talk of the Hydra having quad props?
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    Uncannily perfect fit for my planned propeller...

    Uncannily perfect fit for my planned propeller project. Sign me up for two, please!
    ·
  25. Thread: How's It Going?

    by jamma
    Replies
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    For a SD card socket with breakout board, have a...

    For a SD card socket with breakout board, have a look at:

    http://www.sparkfun.com/commerce/product_info.php?products_id=204
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