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946  Using Arduino / General Electronics / Re: How many LEDS? on: February 14, 2012, 07:33:32 pm
You need to figure a few things out first:

a) What's the specs on the LEDs?  Voltage?  Amps?
b) How do you plan on wiring them, serial or parallel?

At the very least, you need a power supply to drive them, its output will be determined by the above two questions.
947  Using Arduino / Project Guidance / Re: Ethics & Arduino on: February 13, 2012, 08:33:29 pm
You mean, I can't "donate" a case or two of beer?  Ooooh, more for me then. smiley
948  Using Arduino / Project Guidance / Re: Arduino Quadcopter on: February 13, 2012, 08:24:14 pm
I don't know about other copters and their sensors or lack thereof.  So I can't answer that question.  Ask the makers of said quad, look over their code, see how they are doing it.
949  Development / Other Hardware Development / Re: Convert .brd to other formats on: February 13, 2012, 07:19:01 pm
You can also print as PDF.

This is only valid if they have a PDF print driver installed.  I always assume the very minimum, meaning someone might not have that.
950  Community / Website and Forum / Re: Squared brackets appearing only preview on: February 13, 2012, 03:21:30 pm
Paste your code between the proper [ code ] tags.  It's that # sign in the menu buttons above.  Click on it, then paste your code between the tags... (or high light your code, then click the # sign)
951  Community / Website and Forum / Re: Arduino web site very slow on: February 13, 2012, 03:11:44 pm
And right now, 1:10pm Mountain Time, it's taking forever to even connect ... it has timed out once already.  I've tried it from two different networks, one here (my house) and another remote network on the East Coast ... same deal.
952  Development / Other Hardware Development / Re: Convert .brd to other formats on: February 13, 2012, 03:07:24 pm
As mmcp42 suggested, you can Export it as a PNG image, which can be opened by just about any image viewer, including a web browser.  You can export the full board, or just the part you are zoomed in to on screen.
953  Community / Exhibition / Gallery / Re: Arduino's in permanent projects? on: February 13, 2012, 01:14:56 am
For permanent projects, I always end up creating a clone, tailored to what I'm doing.  I design my own PCB, with what I need, and go from there.  The last large project was a xmas light display, and I ended up making 15 custom PCBs, each with a 328P on board and an RF module.

Sooner or later here I will create a custom PCB that I can use for anything, but right now I'm just playing with it, trying to figure out what all I need/use before I create a generic enough PCB that I can use over and over again, regardless of the project I'm building.
954  Using Arduino / Project Guidance / Re: Fading three LEDs consecutively over three days. on: February 12, 2012, 10:43:02 pm
Because everything takes time.  Every instruction takes time.  Every loop takes time.  So while you can time it for a 50ms delay, in reality it's more than that.  So you need to adjust accordingly.
955  General Category / General Discussion / Re: Servo Symbol For Eagle on: February 12, 2012, 10:04:14 pm
Exactly, because they're never included in the schematic as actual components, they are external devices as you said yourself.  You put the actual amount of pins needed to drive it.  If the servo uses 3 wires, then add a 3-pin header.  If it uses 4, use a 4-pin header.  Same thing for power supplies, they don't get included.  Instead, you add a 2-pin header where you solder the VCC and GND leads on.  Same goes for LCD displays, and many other components.
956  General Category / General Discussion / Re: Servo Symbol For Eagle on: February 12, 2012, 09:43:56 pm
Just put a 3-pin header in your circuit.  Servos aren't components that actually go on the PCB, their wires are soldered on, so all you need are the holes.
957  Using Arduino / Project Guidance / Re: Xmas Lights Plan Thoughts on: February 12, 2012, 09:02:30 pm
Take both VCC and GND, and split both wires, one pair going to the lights, the other pair to the controller.  Then run only signal lines from the controller to the lights.
958  Using Arduino / Project Guidance / Re: Xmas Lights Plan Thoughts on: February 12, 2012, 07:58:33 pm
I only used a 5V because I can power the custom Arduino board without an LDO, but you can go up to a 12V as well, though they get to be more expensive with higher Amps.  Depending on your design, you might be able to get away with using a regular computer power supply.  The 5V rail generally provides quite a bit of Amps for a lot less than you would buy a custom made PSU.  The PSU I used provides 5V/30A so it worked great for the design.
959  Using Arduino / Motors, Mechanics, and Power / Re: Help identifying a computer PSU - non-standard HP molex? on: February 12, 2012, 03:39:25 pm
Maybe.  Depends on the PSU.  You can use a 10 Ohm/10 Watt resistor between 5V and GND as a load.  There are plenty of instructions online.
960  Using Arduino / Motors, Mechanics, and Power / Re: Help identifying a computer PSU - non-standard HP molex? on: February 12, 2012, 01:03:54 pm
You need to put a load on it.  Try a fan.
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