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  1. Question(s) Re: Which microcontroller is best in terms of price and performance?

    Purely viewing pricetag per-piece, you can't beat Microchip.
    They have a hundred new controllers every other week, and you'll never find the one you really need, but nonetheless, they're cheap.
    ...
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    Re: A temporary closed switch circuit

    This should do the trick just fine, as Jes pointed out
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    Question(s) Re: Writing a task scheduler

    I know you don't want a "true" OS, but have you looked at Femto OS?
    I don't have any personal experience with it but it might fit your bill..
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    Project Re: Jurassic Park Animatronic Dinosaur Super Project

    Well, I've always wanted a few animatronic raptors in my backyard as a burglar deterrent.. :d

    Looking forward to seeing what you come up with, but I can only assume this going to cost you...
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    Re: resistor band reader

    No offence, but you're trying to swat a fly with a nuclear bomb here.. KISS..
  6. Thread: Speech Synthesis

    by ScuD
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    Re: Speech Synthesis

    speechchips.com has some TTS chips.. Don't know if they're any good though, haven't used them yet. They do sound a bit 'robot-esque' so it might not be what you're looking for.

    As to using an SD...
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    Question(s) Re: ArbotiX- Lipo power supply...

    7805 with a couple decoupling caps would do the trick. Downside is it's just burning excess power, upside is that it doesn't introduce any switching transients on the power lines.
    Doesn't get much...
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    Question(s) Re: ArbotiX- Lipo power supply...

    I didn't mean to offend either you or Inxfergy, Jon, I just wanted to state my concern. Apologies if it came across that way, to both of you!
    It's just that I've witnessed a lot of lipo and li-ion...
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    Question(s) Re: ArbotiX- Lipo power supply...

    Might be just one of my phobia's, but i'm not too keen on software handling power cut-off for lipo's.
    Unless there's some sort of auto shut-off in case of problems (i.e. power is only turned on by...
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    Re: Servo Power Regulating

    Completely read over the entire camera part. I was under the impression it was only relating to servo power supply.

    Please ignore my previous post :)
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    Re: Servo Power Regulating

    Or, you could just hook 2 high-power diodes in series, getting a voltage drop of ~1.4v.. but then it's not regulated, so the voltage will be dependent on both current draw and battery capacity.
  12. Thread: Roz

    by ScuD
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    Project Re: Roz

    Wait, you're using components ordered in Belgium?

    Mwuha.. what are the odds of that happening ;-)
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    Discussion Re: grafic processor for robot tasks

    Sorry, I'm just used to simple microcontroller architecture, I'm completely lost in translation here :-)

    I just remembered graphics cards have their own ram, so now I'm left wondering where the...
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    Discussion Re: grafic processor for robot tasks

    I'm curious actually, I'm not too into computer hardware... but I assumed the graphic processor (such as the ion, nvidia graphics cards etc) all just processed data and then sent it directly to the...
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    Re: FlexiForce Drive Circuit: Power Supply

    There's basically two reasons to choose low-voltage opamps.. First is power supply limitations, obviously, and second is speed.

    The less voltage swing that needs to be overcome, the faster it'll...
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    Re: What should my college lab buy?

    For a not-too-expensive, getting started, yet decent piece of machinery, you could look into the Sieg KX-3 cnc mill.
  17. Re: How to differentiate between glass and plastic and other materials

    I can't come up with an idea as to differentiating between glass and plastic, but you could use magnetism to decide which is aluminum and which is steel.
    An electromagnet would pick up any steel...
  18. Thread: Arena Discussion

    by ScuD
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    Re: Arena Discussion

    True enough, but you'd be surprised how fast you can whip these buildings up...

    My brother/father/brother-in-law/etc are all wargames fanatics, and I used to build scenery for them in various ways...
  19. Thread: Arena Discussion

    by ScuD
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    Re: Arena Discussion

    If you can get into the realm of warhammer 40k'ish scenery, or Rackham AT-43, you'll be exploring an entirely new event ... one that I've been bugged about for years, actually.
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    Re: Mech Warfare 2010 Draft Rules

    Darn.. and I just finished finetuning the anti-matter cannon.. :(
  21. Thread: Bheka

    by ScuD
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    Project Re: Bheka

    I've seen plenty of dogs fall over... horses too.. I've even seen gecko's fall over, but that was about a week before it died....
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    Re: Using wheelchair motors: Is there a solenoid???

    Seems like a reasonable theory. You wouldn't want a wheelchair to go haywire downhill when you're out of batteries.

    If you can post some pictures maybe we can help out in how to disable it.
  23. Thread: PS2

    by ScuD
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    Question(s) Re: PS2

    uhm... you could write your own libraries to work with the ps2 controller. Then again I only know C64 basic...
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    Question(s) Re: RX-64 4-pin connector cables

    I suspect it's the same connector line as the AX-12's, someone correct me if I'm wrong.

    They're Molex connectors, Farnell has them:
    ...
  25. Thread: climbing robots

    by ScuD
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    Re: climbing robots

    Not too easy to make by yourself though.
    I've seen it done by making a mold in a laser engraver, making tiny dots in a plastic, and then casting silicone rubber into it.

    Wasn't too efficient...
  26. Thread: programming

    by ScuD
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    Re: programming

    You're too much like me.

    Set a goal you want to accomplish with one project at a time. Go from there.

    If you run from this project to that one, you'll never get anything done. Check any of my...
  27. Thread: programming

    by ScuD
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    Re: programming

    Need more input!!
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    Question(s) Re: In Wheel Motor for 1/5 Car

    Those are actually high-priced "supervised" mosfets. I say supervised because of all the protection built-in.

    You could build an H-bridge with those but it'd prove costly..
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    Re: How to get 12 or more Mechs competing next year.

    That article is actually just handling the first step - digitizing the analog video signal.

    The problem we're facing is compressing the signal enough so we can limit the bandwidth needed to get...
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    Question(s) Re: In Wheel Motor for 1/5 Car

    If you use a motor with an ordinary or planetary gearbox (i.e. no worm gear) you could short the motor leads to act as a brake. That can usually take quite a load, the higher the gear ratio, the more...
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    Question(s) Re: In Wheel Motor for 1/5 Car

    There's two options really: build a servo from scratch, including electronics, or taking apart a working one and adapting it to suit your needs.

    If you're going to adapt one, you'll indeed need...
  32. Thread: Beetlejuice

    by ScuD
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    Contest Entry Re: Beetlejuice

    Man that turned out awesome!

    The high gloss on the body sure takes the eye.

    Good luck on the programming!
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    Question(s) Re: In Wheel Motor for 1/5 Car

    If you're using bearings in the design, those can be used as faux slip-rings as well, though they do not always insure a proper contact... Plus, with 2 amps and dodgy connections (i.e. sliprings) you...
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    Re: Bipolar Stepper Motor: 2 Axle Qs

    Most motor axles are made of silver steel. It's quite hard, but a decent hacksaw can cut through it.
    Put some masking tape over the axle to prevent the blade from slipping, put the part you want to...
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    Re: How to get 12 or more Mechs competing next year.

    I tend to agree with Fergs on the biggest issue at this point being increasing payload.

    I'm still writing the tutorial on my ubersimple quad design, and wasn't really planning on rebuilding the...
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    Discussion Re: Python Project Sharing and help Thread

    Start programming that thing in assembly.

    That'll grow some hair on your chest! :cool:

    :veryhappy:
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    Question(s) Re: How to sense terrain

    Whew, I was thinking an aluminum disk with 2000+ lasered engravings ;)
  38. Thread: BRAT Based Mech?

    by ScuD
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    Re: BRAT Based Mech?

    Great stuff guys, keep up the good work!!
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    Question(s) Re: How to sense terrain

    Why would you want those? Out of curiosity..

    I don't know where you can find them, but I can imagine it isn't going to be cheap.

    Unless you go for the DIY way, but I guess you need high...
  40. Thread: BRAT Based Mech?

    by ScuD
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    Re: BRAT Based Mech?

    Hooray James!! Now get us that second movie allready! :P
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