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    Re: First Mech completed!

    Ahh, nice.. Well, we'll just save that one for when we open our "Crude Hygiene-Related Jokes" subforum. I only asked because Scud is a comic about a quirky robot, and this is.. you know... a quirky...
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    Re: First Mech completed!

    @ ScuD
    I realize this is an odd place to ask this question, but is your user name a reference to the Rob Schrab comic, "Scud: The Disposable Assassin"?
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    Re: Wall-e; What Did You Think Of It?

    Amen to that. Gotta keep an open mind.
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    Re: Wall-e; What Did You Think Of It?

    Just in case anyone was wondering what some far-right conservative whackaloons thought of this movie...

    http://thinkprogress.org/2008/07/01/right-wing-hates-wall-e/
  5. Thread: Hello

    by Dave
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    Re: Hello

    Also, pictures are good. We're very visual people.
  6. Thread: Hello

    by Dave
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    Re: Hello

    Well, start by breaking a very general and ambiguous question into several smaller ones. What kind of brain do you want it to have? What kinds of actuators do you want to use? How are these...
  7. Thread: RCB-3HV

    by Dave
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    Re: RCB-3HV

    Still no English translation!! AAARRRRRGG!! :genmad:
  8. Thread: hey everyone !

    by Dave
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    Re: hey everyone !

    Tribotix is a great site in general. Good source for docs and firmware updates for all things Robotis.
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    Question(s) Re: Help me find a source for these connectors!!

    Greedy :p
  10. Re: Well my 2nd post with a question about phone lines

    You may want to check out some off-the-shelf Bluetooth modems instead. The Blue SMiRF transceivers act as wireless serial bridges. They're well-documented and relatively idiot-proof.
    ...
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    Question(s) Re: Help me find a source for these connectors!!

    Got my free sample today! I've never ordered samples from Samtec before, and I gotta say that I'm mighty impressed. Ordering was brain-dead simple and I got them in two business days.
    ...
  12. Thread: Please help me!

    by Dave
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    Re: Please help me!

    I have a few comments. Food for thought.

    Calculating battery run time for robots can be kind of tricky because there are many variables that come into play when your bot is stopping, starting,...
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    Question(s) Re: Help me find a source for these connectors!!

    Excellent.



    Yikes. That data sheet is pretty overstimulating. Found what I needed, though.
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    Question(s) Re: Water Gun Sleep Alarm... Need Help

    It's never as simple as it sounds. Gotta rectify and filter it first. It may also may require a polyrazmatizer circuit. Adrenalynn, I think our dreams of avoiding personal liability have just gone...
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    Question(s) Re: Water Gun Sleep Alarm... Need Help

    The mental image of this just totally made my day. I'm gonna race you to the patent office with this one!
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    Question(s) Re: Water Gun Sleep Alarm... Need Help

    Mist drifts. Might be worse than a direct squirt.



    For fifty bucks, I'll come over and hit you with a folding chair when your alarm goes off :p
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    Question(s) Re: Water Gun Sleep Alarm... Need Help

    Actually, that's our professional relationship, in a nutshell.



    It looks like it, but to be totally honest I really doubt it would work very well, if at all. I'd want to rectify and filter...
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    Question(s) Re: Water Gun Sleep Alarm... Need Help

    Ew. That hadn't even occurred to me. Yeah, why don't you make a Tesla Coil or something instead. Nice and dry, those things are.

    Also, here's a helpful Instructable: How to Take Things Apart...
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    Question(s) Re: Water Gun Sleep Alarm... Need Help

    Don't let Adrenalynn scare you away from your project. She's just doing the responsible thing by letting you know what you're getting yourself into, since you're inexperienced with electronics. ...
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    Question(s) Re: Help me find a source for these connectors!!

    Thanks, but short end = no good.



    That's it! I think my problem was that I was looking for them in bulk 40-pin rows. I may have to settle for this. Thanks!
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    Question(s) Help me find a source for these connectors!!

    I've just wasted an embarrasing amount of time scouring DigiKey for this part, and it's driving me NUTS. It's such a simple part. A 1/10" pitch breakaway male pin header with gold-plated 1/4"...
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    Re: help with phidget 8/8/8 and EZ1 sensors

    Welcome to the TRC, Rohit :)

    Using multiple MaxSonar sensors is pretty simple, but not totally straightforward. Connect the +5V, ground, and analog pins on the EZ to the corresponding wires on a...
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    Re: Is it possible to make a humaniod out of Phidgets?

    I stand by this analogy. Analog inputs are the essential watercloset of the robot controller domicile. It's where you send something that's too sloppy or continuously variable to safely pour down...
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    Re: Is it possible to make a humaniod out of Phidgets?

    Oh man. Yeah, that looks really cool at first glance, but it has a very frustrating limitation. No analog inputs. The board has some sort of expansion bus, so you could conceivably add an analog...
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    Re: Is it possible to make a humaniod out of Phidgets?

    I pulled this from an article about multiplexing the Arduino's analog inputs using an network of MC14067 chips. Looks cheap, simple, and scalable. Take a look at the wiring diagram link at the end...
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    Re: Is it possible to make a humaniod out of Phidgets?

    Yep. Keep in mind that this gyro measures angular acceleration, not angular speed. That trips some people up.



    Sounds reasonable. The bump sensors will probably come in handy, because the...
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    Re: My Fire-Fighting Robot

    Neato. What pyroelectric sensor did you use?
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    Re: Is it possible to make a humaniod out of Phidgets?

    Take a look at the Kondo sensors. The documentation is in Japanese, but the basic specs are pretty clear. I like them because they are compact, and they have standard 3-pin servo-style pinout, so...
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    Re: Wastebot: I was bored after work today...

    Jump on my threads all you want. ;) I'm glad I was able to show you something useful.

    They're great little motors. They were designed to be used in toys, but don't hold that against them.
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    Wastebot: I was bored after work today...

    So I stuck around the shop for a bit and made... something.


    http://www.youtube.com/watch?v=CcXmzASHp3s

    It's a waste basket sitting on a hastily improvised R/C base.

    Here are his guts:
    ...
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    Re: Three Legged Robot

    Tripedal locomotion doesn't get nearly enough attention, even though it seems to have a lot of potential. It's much more efficient than bipedal walking, because you devote less energy to balancing;...
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    Re: Want to make a USB perfume mixer

    I realize you already bought them, so I may be a little late bringing this up, but did you get unipolar or bipolar stepper motors? The Phidget stepper controller only works with unipolar motors.

    ...
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    Re: Want to make a USB perfume mixer

    You don't need an encoder with these actuators, conveniently enough. They have built-in potentiometers, which you can use for positional feedback. Here's some pin-out info, from the spec sheets:
    ...
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    Just For Fun Re: Lighter side of Robot models (SFW&NSFW)

    That movie showed up on youtube a while back, but it got taken down. I think that video's awesome, mostly because I'm a huge geek for stop-motion animation.

    Here's a brief behind the scenes...
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    Re: 4th Of July Project

    Measure the resistance of the igniter. Divide voltage by resistance. V/R=I. That's your peak current.



    I took a bunch of notes on multiplexers a few months ago when I was working on a...
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    Re: Laser Harp Mk III - now with added WiiMote

    Yep. The port in the back end of the remote has I2C pins. It's how the remote communicates with peripherals like the Nunchuck and whatnot.
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    Re: Laser Harp Mk III - now with added WiiMote

    Wow, I can't believe this slipped under my radar for a month. :robotsurprised:

    It sounds much better than it did with just the light sensors. The pitch bending is very tight. Nice work, Steve.
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    Re: Sabertooth 10a problems

    What have you been using, besides the Futaba receiver, as a control signal source?
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    Contest Entry Re: Frameless Laser Harp with microcontroller

    And then... They went under.


    Alex and I were geeking out over those a few days ago. We'll probably be adding them to our catalog at some point. In the meantime, give SparkFun your business...
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    Re: Join my group, fleshsack! Defeat Skynet!

    People love to quote the laws, but if I recall correctly, the first law was actually what eventually led the machines to enslave the human race. They decided that humans were not capable of...
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