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601  Using Arduino / Project Guidance / Re: Implementation of differentials on: January 09, 2014, 08:57:26 am
Blink-without-delay is an example in the IDE.... Go File> Examples> Digital.

It uses millis() to give you the time since reset whenever you need it. So you can take a time at event a, another at event b, and of course the difference is the elapsed time between the two events.

Must say, I'm not sure what you're trying to achieve though... what's proving the voltages?
602  Using Arduino / Displays / Re: Maximum cable length from mega shield v1.1 and mega 2560. on: January 09, 2014, 08:47:45 am
I guess you'll never know till you try?

Take one for the team and report back.....   smiley-cool
603  Using Arduino / Networking, Protocols, and Devices / Re: Ethernet shield cable length on: January 09, 2014, 06:52:05 am
Looks same as mine...

I wonder what it would be in a shield, if anything,  that would affect the distance?
604  Using Arduino / Networking, Protocols, and Devices / Re: Ethernet shield cable length on: January 09, 2014, 06:24:29 am
Mine's a clone shield, ie not Arduino manufacturer, although I guess the 5100 chip is genuine. I have a 30m cable and usb power, no problems at all.

See me here....
605  Community / Bar Sport / 9V PP3s... on: January 09, 2014, 05:31:16 am
Useless bloody things... I think it's flat already.
606  Using Arduino / Programming Questions / Re: How to parse an HTTP Get request, without all the HTTP dross on: January 09, 2014, 05:24:05 am
Whenever I think PaulS is a pain in the arse (or ass, depending on where you live), which is probably a few times a day week, I remember this...

607  Using Arduino / Programming Questions / Re: Arduino Mega issue does not occur on Arduino UNO...64 button shield on: January 09, 2014, 03:51:03 am
Uno SPI pins are 10-13, Mega are up in higher numbers (I forget exactly).... could that have anything to do with it?
608  Topics / Robotics / Re: 14 servo motors using arduino? on: January 09, 2014, 03:26:17 am
can somebody help me to do program it

Most people here regard help as you showing us what you've done, and asking for help on specifics which you can't get working. Looks to me like you're asking for a solution. Well I doubt if you're going to get a ready made solution from anyone.

Have you tried anything yet? Have you for example done the servo sweep or knob examples from the IDE?- File > Examples > Servo?

Have you decided what you want that snake thing to do? You don't (or shouldn't, anyway) just dive into coding until you've defined your requirements.

Define to yourself what you want, then try write the code, perhaps just for one servo. Get the basics working- and people will gladly help you with that I'm sure- then add more functionality and more servos.

EDIT... I guess there are some sensors involved too, like to see where it's going or whatever. If so, you'll need to investigate what those sensors are and figure out how to get their readings in. Then decide what effect those readings will have on your servo/s and see how to get a servo to react to an input.
609  Using Arduino / Installation & Troubleshooting / Re: Compile error when uploading Blink on: January 09, 2014, 01:33:53 am
Also, I've noticed that the "Getting Started" guide mentioned nothing about compilers, is it not needed?

The environment that you download is the compiler.
610  Topics / Robotics / Re: uArmⅠ:An open source robot arm on: January 09, 2014, 01:18:07 am
Yes I believe those are called "stand-offs".

My laser cutting is ordered and paid for whoo hoo.
611  Using Arduino / Motors, Mechanics, and Power / Re: dc pump control on: January 08, 2014, 11:33:34 pm
It goes across the pump... but it must be "backwards" remember: the cathode of the diode goes to the + although that might seem "wrong".
612  Using Arduino / Project Guidance / Re: Turn ON/OFF Battery Powered Toy with Pushbutton on: January 08, 2014, 10:43:47 pm
whatever a standard little dc motor would use.  Maybe 0.3A  otherwise said 300mA.

And 1A start-up or stall probably not unreasonable to allow for.
613  Using Arduino / General Electronics / Re: Choosing the power supply on: January 08, 2014, 11:42:24 am
I want the unlimited power energy available from the wall socket

614  Community / Bar Sport / Re: What do you call a citizen of the United States of America? on: January 08, 2014, 10:26:55 am
Aleuts    Anasazi     Apache      Arapaho     Arikara     Assiniboine   Bella Coola
Blackfoot     Caddo    Cayuse    Cherokee    Cheyenne     Chickasaw    Chinook
Chiricahua    Choctaw   Chumash     Comanche    Coos    Cree
Creek Indians    Delaware    Eyak   Gros Ventre   Havasupai    Hidatsa     Hopi
Illinois    Innu    Inupiat   Iroquois    Kansa    Kaska     Kiowa
Klamath    Kutenai   Ktunaxa    Kwakiutl      Miami    Mandan (Voir village Mandan)   Massachuset
Micmac    Modoc    Narragansett    Natchez     Navajo     Nez Perce    Nootka
Ojibwe     Omaha    Oneida    Osage     Papago    Paiute    Pawnee   
Pequot    Pomo    Potawatomi    Pueblo    Seminole     Shoshone     Sioux
Sauk and Fox     Secwepemc    Skidi Pawnee
Twana     Utes     Wampanoag    Wichita    Yokuts    Yoruk    Yuma     Zuni

Still a lot left for Piper to use then
615  Using Arduino / Project Guidance / Re: Send electric signal from PC to Arduino on: January 08, 2014, 06:04:22 am
And of course Pololu has wireless USB called Wixel
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