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286  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: DC power for USB Arduino on: June 08, 2008, 10:50:02 pm
aaronprobst, according to your link there is a ULN2003A driver chip that provides power handling and protection between the Arduino pins and the stepper motor.
287  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: One last college try for RF modules on: June 01, 2008, 11:41:42 am
Well, here is what was on the sparkfun site. It's a little more lowlevel than the Arduino code would need to be but it will give you an idea.
288  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: One last college try for RF modules on: June 01, 2008, 10:58:32 am
How are you syncronizing the transmit and receive so the tx does not start until the rx is ready? As I see the code the tx just sends and the rx just receives so how do you know the complete byte was received?
289  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: SRF10 Mounting Kit Specs on: June 01, 2008, 10:20:32 am
Mounting the SRF10
You may have notice that there are no mounting holes on the SRF10 module! That was deliberate to keep the module as small as possible. So how do you mount it? Here are three suggestions:
1. A straight or right angle 0.1 inch connector soldered to your PCB.
2. Using two 9.5mm rubber grommets. Two holes should be drilled into the panel you're mounting the SRF10 to. The hole centers should be 0.7inches (17.78mm) apart and the holes drilled 0.5 inches (12.7mm) in diameter. The two grommets should then be fitted to the panel and the SRF10 gently pushed into them.
3. Using our SRF10 Mounting Kit, shown below.

290  Forum 2005-2010 (read only) / Frequently-Asked Questions / Arduino, Processing, Wiring how do they relate? on: May 31, 2008, 01:08:47 pm
After getting my Arduino and comming here I heard someone mention Processing then Wiring. I've been to the sites and registered for the bulletin boards (forums). My question is, obviously these are related somehow but what is the relation? The IDE is similar, JAVA is a common factor but what else and can you use one to write for the others (at least code snippets) Thanks for any clarification you can offer.
291  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: How to convert 5v TTL to 3.3v and vice versa? on: May 26, 2008, 11:48:43 am
You might try here for ideas
292  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Noob / getting started : driving a digital tac on: May 19, 2008, 11:32:47 pm
It sounds like it can be done. First you need to find out what the tach needs for an input, what levels, speed and form. Then you can have the arduino output that to the tach. After you get that working then start on the control.
293  Forum 2005-2010 (read only) / Bar Sport / Re: Housing a temp sensor outside on: March 09, 2009, 11:59:51 pm
Here's one I've used. http://www.mulveyfamily.com/weather/Sensor_Grenade.doc
294  Forum 2005-2010 (read only) / Bar Sport / Re: Anti-virus nothing to do with Arduino on: January 21, 2009, 11:35:27 pm
If AVG was doing that to their systems they were using it incorrectly or they got a bogus copy.
295  Forum 2005-2010 (read only) / Bar Sport / Re: The forum's "User Control Panel" on: December 27, 2008, 08:13:23 pm
As you've found you click the message count then on the left there is a box with tabs. The second one is profile and the new box can have the headings clicked to access.
296  Forum 2005-2010 (read only) / Bar Sport / Re: simple technical photo tips on: December 14, 2008, 06:52:40 pm
Nice work and excellent information. Thank you VERY much.
 smiley
297  Forum 2005-2010 (read only) / Bar Sport / Re: Freeduino 'Really Barebones' on: December 14, 2008, 06:58:49 pm
This is a good little board. I didn't see if it included a voltage regulator but it would not be hard to add if needed.
298  Forum 2005-2010 (read only) / Bar Sport / Re: detecting RPM by wrapping a spark plug wire on: November 26, 2008, 01:37:40 pm
here's another good link.
299  Forum 2005-2010 (read only) / Bar Sport / Re: disabling an automatic shut off on: November 29, 2008, 02:15:10 pm
I guess my first question would be what is the use of this in the robot? Could it be off until needed and then turned on and read then allowed to turn off again?
300  Forum 2005-2010 (read only) / Bar Sport / Re: general electronics forum on: November 25, 2008, 04:11:39 pm
You might try here http://www.electro-tech-online.com/
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