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91  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Does wire length effect performance? on: July 29, 2010, 01:20:29 pm
You'll also need to avoid kinks / tight bends else you will get reflection, and bear in mind that long unshielded wire can act as an antenna too.
92  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Graphic LCD as a speedometer, question. on: June 21, 2010, 01:13:55 pm
I am thinking the same kinda thing.

10 times a second is more than enough IMHO, I remember the old Vauxhall Astra displays were slower than that and "road legal"

End of the day also, the presentation of other functions might look better too, for example an RPM bar, fuel level, etc.  Suppose it just depends on what the board is capable of.

 smiley
93  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Stepper Motor Query on: June 26, 2010, 09:49:18 am
Sweet... Thank You  smiley

 I'll rip the clocks apart and see what the story is.

If this information isn't printed on the steps, onto plan B.  Programme arduino to carry out 360 steps and see what happens from there in terms of how many revs it does.  Divide 360 by the amount of Revs should give me the steps per rev, correct? smiley-grin

(EDIT : is doing that likely to kill the motor?
94  Forum 2005-2010 (read only) / Frequently-Asked Questions / Stepper Motor Query on: June 25, 2010, 07:19:19 pm
OK, so I'm attempting to build a stepper motor driven Rev Counter... I've tried the search function and it throws up a bunch of stuff I don't get a definitive answer to.

http://arduino.cc/en/Tutorial/MotorKnob

Is

Code:
// change this to the number of steps on your motor
#define STEPS 100

defined by the stepper motor?

If so, is there a method of determining the amount of steps a motor has?

I am of course assuming that those 100 steps are per full revolution.

In my use I'm only going to need 3/4's of that rev range, so 270 degrees (see piccie below for the guage I'm using - image from fleabay)



I would assume that the amount of steps is down to 360 degrees, so the limitation is on the RPM of the engine to determine it's sweep right?

My application is real world, not sim, so the output is coming from a 12 volt source based on the frequency of it's repetition to generate RPM.  Would this need to be stepped down to 5 volts for use with the Arduino?

Apologies for the newb questions, but I'd rather like to get it right(ish) first time than fry equipment.

Cheers,
Rich
95  Forum 2005-2010 (read only) / Bar Sport / Re: Lol on: January 10, 2011, 07:19:04 pm
Which egg though?  If it is the one I had Saturday, then it was the chicken... as I had Chicken curry friday night.  

Which came out first... I'm not sure, I'd have to speak to a nutritionist to find out the relative metabolic breakdown for each  :o

Other than that, snakes lay eggs... but can you fry them, and will they taste like chicken eggs?
96  Forum 2005-2010 (read only) / Bar Sport / Re: Arduino User Locations/hackspaces/groups/meetups on: August 08, 2010, 01:42:39 pm
Quote
First woman on the map or was that a mistake?  Tongue

It's a little person, I just clicked the first one.  It could be me just getting out the shower with my towel on, haha.
97  Forum 2005-2010 (read only) / Bar Sport / Re: Arduino User Locations/hackspaces/groups/meetups on: August 08, 2010, 06:28:02 am
Yeah it was... I deleted them though, I think?  Unless you were viewing them asd I was messing about???

I'm a bit of a donk when it comes to Google Maps though, it's obviously far less complicated than I'm managing to make it, lol :-?
98  Forum 2005-2010 (read only) / Bar Sport / Re: Arduino User Locations/hackspaces/groups/meetups on: August 08, 2010, 06:18:06 am
Realised how to add... not far from you mowcius! smiley-grin
99  Forum 2005-2010 (read only) / Bar Sport / Re: Pitch and Sound on: October 09, 2010, 03:36:07 am
sweet, thankyou very much.  Now to hit google now I know what they're called smiley-grin
100  Forum 2005-2010 (read only) / Bar Sport / Pitch and Sound on: October 08, 2010, 04:18:50 pm
I posted it here as I'm not necessarily needing to hook up Arduino for this.

I'm wanting to make a light reactive LED matrix, of sorts that respond to pitch not volume, that will be compact enough to fit inside and XBox 360 face plate.

Problem is... I've tried googling for ideas and getting pretty much no-where.

I'm guessing a simple form of a graphic equaliser but with the LED's being all rather random would be ideal.

Hlp!! smiley-grin
101  Forum 2005-2010 (read only) / Bar Sport / Re: Real light sabre on: September 15, 2010, 06:00:21 am
Just use the force and you should be golden smiley-grin
102  Forum 2005-2010 (read only) / Bar Sport / Re: Just For The Heck Of It (Maybe A Future Project) on: September 14, 2010, 06:36:26 pm
Quote
see if I could find a 3.3 VDC or 5VDC output that is only on when the TV is on

Like the power LED for example?
103  Forum 2005-2010 (read only) / Bar Sport / Re: mm verses inches on: September 07, 2010, 02:46:04 am
NAH, still MPG here as mowicus said... although you buy fuel per litre now.  It's only taken 40 years to get this far, by the time we're fully indoctrinated we'll all be speaking esperanto  ;D
104  Forum 2005-2010 (read only) / Bar Sport / Re: mm verses inches on: September 06, 2010, 02:43:30 pm
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if they had to go through the hassle of adapting your directions to their toolkit.

A very valid point, hence the most obvious suggestion would be to include both units from the get go... but stick with one unit as the primary.

And regards MPH / KMH (or KPH)... the UK stuck with MPH, yet everything else is Metric.  Go figure that one out!!

105  Forum 2005-2010 (read only) / Bar Sport / Re: mm verses inches on: September 02, 2010, 04:11:38 pm
Quote
Binary.  You can get up to 1023 on your fingers then and it's pretty easy.  I used to do it when I was a photocopy monkey.

You missed a trick there, let's face it when you count, you don't start at Zero as there's nowt to count ... you coulda denoted no fingers as 1024 smiley-grin

Just think of all those copies that you coulda have done extra, lol.

Oh, and I still see a billion as a million million too....
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