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346  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Mood Light on: May 04, 2008, 12:21:18 pm
I think the jumping has to do with the fact that you're not saving the value for any particular pin.  So, you can go from full off to full on or visa versa, causing a "jump".  If you always want smooth transitions I would think you need to track if each pin is full on or full off and adjust accordingly.
347  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Can I use a Switching power supply w/ the ardu on: April 27, 2008, 01:12:19 am
You may need to introduce a load to keep the power supply on.  I'm guessing just the Arduino will not be enough.
348  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Standalone Arduino power supply question on: March 24, 2008, 12:32:04 pm
Are you possibly using a switching power supply?  What are the specs of the power supply you're using?
349  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Where did Daniel go? on: January 18, 2008, 01:36:43 am
Hope you had a nice break Daniel!  Good to see you back!
350  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: How many Amps? on: December 16, 2007, 05:44:33 pm
Wow, 50A is gonna require a pretty serious power supply.  Can you give us more info about the motor and what it's doing?
351  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Last time, I swear... on: December 02, 2007, 05:00:30 pm
I don't see where you tied the buttons to ground, so your inputs are most likely floating.  Have a look at the button tutorial here.
352  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Visual Basic? on: November 18, 2007, 03:46:20 am
Yes, you can use VB to interface to the Arduino via the serial port.
353  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Diecimila PCB files on: October 15, 2007, 04:51:29 pm
I believe it's already available here.

NKC is great to deal with!
354  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Will the arduino communicate using a serial/he on: September 09, 2007, 11:19:38 pm
I believe they actually want to connect the Arduino to a device that has a serial interface.  The Arduino can do this, but you will most likely need to convert the ttl to rs232 voltages.  There are several ways to do this.  You could build your own circuit using a max232 chip or buy something like this from sparkfun.
355  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Arduino Mini + Infrared - help an MIT student on: August 01, 2007, 06:28:25 pm
There is a lot of good information on the playground and the main site.  Search around and you will find lots of good info!

http://www.arduino.cc/en/Reference/HomePage

serial.Print would be the equivalent.
356  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Text File on: March 26, 2007, 02:05:34 pm
You'd need to have software running on the computer to read the com port data and then write it to the text file.
357  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Total newbie question on: February 28, 2007, 12:49:31 pm
No problem  smiley-wink
358  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Total newbie question on: February 27, 2007, 10:58:49 pm
Parts list for serial Arduino here.

Assembly instructions here.

Parts list and assembly instructions for USB Arduino here.

Keep in mind you'll need a micro with the bootloader already on it or a way to burn the bootloader.
359  Forum 2005-2010 (read only) / Bar Sport / Re: Production of Plastic Enclosures? on: January 15, 2009, 01:39:53 pm
I'm interested!  Very cool process and it seems you can achieve very nice results.
360  Forum 2005-2010 (read only) / Bar Sport / Re: Production of Plastic Enclosures? on: January 09, 2009, 03:53:09 pm
Well, if you're not willing to spend thousands of dollars on a soft mold, you'd probably be best off with a prototype house.  Someone like these guys (no idea who they are):

http://www.printo3d.com/
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