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24466  Forum 2005-2010 (read only) / Interfacing / Re: Serial port printing data in little matrices on: October 21, 2010, 03:53:54 pm
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basically this code should print 4D12testing to the serial port every 3 seconds
No it should not!
0x01 is not the 'number 1' it is the 'value 1'.

Now if you do:-
 mess_buffer[0] = 0x31;
  mess_buffer[1] = 0x32;

You will see:- 4D12testing



24467  Forum 2005-2010 (read only) / Interfacing / Re: 12 Servo's, Arduino and external power won't work on: October 14, 2010, 10:41:17 am
I would also suggest some decoupling:-
http://www.thebox.myzen.co.uk/Tutorial/De-coupling.html
24468  Forum 2005-2010 (read only) / Interfacing / Re: Graphing temperature with processing problem! on: October 19, 2010, 09:48:59 am
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but for some odd reason

It is not an odd reason. It is a computer program it is doing exactly what you told it to. The fact that you told it to do the wrong thing is not the computers fault or an odd or random event but entirely down to you.

Once you get that in your head you might go some way towards solving your problem.
24469  Forum 2005-2010 (read only) / Interfacing / Re: Remote control duplicator question on: October 19, 2010, 03:50:26 am
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I actually meant a duplicator,

No you don't, not in any language that is called English anyway.

What you mean is an emulator or simulator not a duplicator. You want to record incoming IR and play it back on demand.

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I was not able to find any kind of information online.
This surprises me.
I just googled 'arduino IR playback' and got lots. Top of the list is:-
http://www.arcfn.com/2009/09/arduino-universal-remote-record-and.html
Mind you if you go googling duplicator what do you expect.
24470  Forum 2005-2010 (read only) / Interfacing / Re: Remote control duplicator question on: October 18, 2010, 12:21:25 pm
Do you actually mean a remote control repeater by any chance?    ;D
24471  Forum 2005-2010 (read only) / Interfacing / Re: Continuous sample time - Serial Send block on: October 20, 2010, 01:28:17 pm
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The serial send block doesn't can use in time continuous.

The writer of the error message doesn't can write in English

What has this to do with an arduino?
24472  Forum 2005-2010 (read only) / Interfacing / Re: iTunes to Arduino on: October 18, 2010, 11:14:00 am
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it may be skipping the "if" statement?

Note the if don't work with strings you know.
24473  Forum 2005-2010 (read only) / Interfacing / Re: arduino + processing + sharp IR = periodic output? on: October 13, 2010, 05:26:10 pm
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if I set the delay to be 60 Hz would I see it become uniform?
No because it would not be exactly the same frequency as the mains it would drift or beat as I said.
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why would it be picking that up?
It matters not where you are unless you take specific steps to screen from it there is mains everywhere. To remove mains pickup you would have to be an a ferrite lined chamber like you do RF emissions testing in.

If you have a scope just touch the probe and see how much you pick up.
24474  Forum 2005-2010 (read only) / Interfacing / Re: arduino + processing + sharp IR = periodic output? on: October 13, 2010, 08:38:34 am
Looks like 50 or 60 Hz mains pick up beating with the sample period. What impedance are you feeding into the analogue port? Have you tried a 0.1uF capacitor across the analogue input?
24475  Forum 2005-2010 (read only) / Interfacing / Re: Can Arduino Deuminalove provide enough power on: October 13, 2010, 08:48:32 am
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Ive tested with 1 dc motor and a relay connected with the arduino
So with a relay connected directly to an arduino?

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and it worked perfectly
What sort of this was this? Was it just a functional test or a parametric test. If you have connected a relay coil direct to your arduino you have almost certainly damaged it. It might still function but probably not for long. Do you know the current the coil is pulling? Anything 40mA or over has damaged it.

Also why are you posting a hardware question here. look at the top of the page and it clearly states:-
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Using Arduino with other software (Processing, Flash, PD, MaxMSP, etc.)
This section is NOT for the software problems you get when interfacing hardware!
24476  Forum 2005-2010 (read only) / Interfacing / Re: Can Arduino Deuminalove provide enough power on: October 13, 2010, 08:08:24 am
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I am connecting each ends of a DC motor to a relay and the relay is connected respectively to a load and PWM signal.

WTF!!!
You can't connect a PWM pin to a relay and expect to do any good. You can't power a relay coil direct from an arduino, you need a transistor. You also need a diode across the relay coil.
24477  Forum 2005-2010 (read only) / Interfacing / Re: Arduino and RGB Strip on: October 07, 2010, 03:07:17 am
Yes but we didn't mind. It is very anti social of you to remove you posts. This leaves the thread meaningless for those searching who might have your exact problem.
24478  Forum 2005-2010 (read only) / Interfacing / Re: Arduino and RGB Strip on: October 06, 2010, 03:46:57 pm
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Right now I´m running them on a powersupply without the controller
And I assume without any form of current limiting? If so enjoy them as they won't last long.
24479  Forum 2005-2010 (read only) / Interfacing / Re: Arduino and RGB Strip on: October 06, 2010, 03:24:59 pm
Not directly, these are p-channel fets. If you need them because you have a common cathode system then you will need to drive them with +12V from the arduino. The best way to get the arduino output to 12V is to use a transistor.However if you have a common anode LED then you need an n-channel FET.
24480  Forum 2005-2010 (read only) / Interfacing / Re: translating coordinates for accelerometer on: October 06, 2010, 01:27:59 pm
You need what is known as a transformation matrix. This is normally a 4 by 4 matrix which is then used to multiply your 1 by 4 vector from your sensors into the required space.
http://en.wikipedia.org/wiki/Transformation_matrix
This link mainly talks about 2D transformations but there is a 3D section at the end. This will give you a spring board to finding out more.

This is typically what you want to do with a telescope:-
http://www.geocities.jp/toshimi_taki/matrix/matrix.htm
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