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31  Using Arduino / General Electronics / Re: Code compilation help needed . on: April 17, 2014, 03:44:03 pm
Have you got this?
http://www.atmel.com/tools/flip.aspx
32  Using Arduino / Project Guidance / Re: How to increase the dc motor's speed(andFrequency)value more than255(and64KHZ)? on: April 17, 2014, 03:41:04 pm
You are still using delay!
Your buttons do not need debouncing.
33  Using Arduino / Installation & Troubleshooting / Re: Need to upload the same sketch every time I power up the Arduino on: April 17, 2014, 02:09:08 pm
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Is there something with the Rx/Tx pins
It could be that your DMX circuit is fooling the boot loader into thinking there is a program waiting to be up loaded.
Try unplugging the DMX connectors, powering up and then re attaching them. You might find the program comes up.
34  Using Arduino / General Electronics / Re: Code compilation help needed . on: April 17, 2014, 02:04:14 pm
Have you seen the links off this page:-
https://www.sparkfun.com/products/retired/8857
35  Using Arduino / General Electronics / Re: Will this voltage doubler works with DC input? on: April 17, 2014, 01:59:59 pm
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I have foind an IC that maybe could help me.
http://www.intersil.com/content/dam/Intersil/documents/icl7/icl7660.pdf

I'm just curious about its voltage when used as Positive Voltage Doubler

Yes you can do that but it will only supply 20mA is that enough?
36  Topics / Robotics / Re: L298N motor controlled DC motor on: April 17, 2014, 01:56:47 pm
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The "schematics" is here:
Where?
That link was just a list of numbers, not a schematic.

Read the how to use this forum sticky and learn about posting code correctly using code tags. Then go back to your post with the modify button and change it so it is right.

If you want help we need to see a real schematic, ( note not a physical layout abortion thing from Fritzing )
37  Using Arduino / General Electronics / Re: Amplifying Audio signal for use with TIP31 power transistor and LED array on: April 17, 2014, 01:48:05 pm
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I assumed that 0V means ground,
No.

First off what op amp is it?
What sort of microphone?
0V is the bias level, it is only ground if you are supplying the op amp with a negative supply as well as a positive one.
It is normal to create a 0V by having two 1K resistors between + and -, the junction creates a 0V.
There should be a resistor, say 10K from the +ve input to the 0V.
The pot should be connected to 0V not ground.
Depending on the type of microphone you might need a capacitor to couple it an and some DC bias fed into it. The other end of the microphone goes to 0V and not ground.
38  Using Arduino / Installation & Troubleshooting / Re: Toasted Macbook, Arduino untouched? How is this possible? on: April 17, 2014, 12:47:27 pm
Luckily I am still under warranty
I am sure the warranty will not cover that.
39  Using Arduino / Project Guidance / Re: Real Time Image processing timing problem on: April 17, 2014, 12:41:53 pm
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To me that sounds like a LabView problem. 
I think your mean MATLAB Mike.
Yes, but the two are so similar in the way they communicate.
40  Using Arduino / Project Guidance / Re: How to increase the dc motor's speed(andFrequency)value more than255(and64KHZ)? on: April 17, 2014, 12:40:11 pm
OK- read the how to use this forum sticky post. Then go back and modify your post so that the it is posted correctly in code tags.

The software problem is caused by your use of the delay function. Do not use delay if you want to interrupt what is happening and make other things happen.
Look at the blink without delay for the technique and look at a finite state machine for further help.
This is a good place to start.
http://www.thebox.myzen.co.uk/Tutorial/State_Machine.html
41  Using Arduino / Motors, Mechanics, and Power / Re: Voltage of a stepper motor on: April 17, 2014, 12:26:41 pm
You would have a job to design something that has less insulation than 100V.
42  Using Arduino / Microcontrollers / Re: scaling logic signal voltage on: April 17, 2014, 11:39:34 am
Back on topic.
The 74HC4051; 74HCT4051 will handle +/- 5V signals but only need 0 - 5V logic to drive it.
43  Using Arduino / Microcontrollers / Re: scaling logic signal voltage on: April 17, 2014, 11:33:10 am
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  Q.E.D.

@Paul__B,
There are so many uses of the term  I am not sure which one you meant.
did you mean "which remains to be demonstrated.." ?
http://en.wikipedia.org/wiki/Q.E.D. 
No not quite:-
quod erat demonstrandum
It IS demonstrated.
44  Using Arduino / Project Guidance / Re: Real Time Image processing timing problem on: April 17, 2014, 12:31:17 am
I know it's software problem but I was thinking if there's a way to store the commands given to arduino and execute them at the desired timing later while simultaneously I can read sensor input and start further processing.
I am  using Arduino Uno.
Yes as the arduino communicates through serial it can send data at any time and that data will sit in the buffer until LabView reads it.
45  Using Arduino / Microcontrollers / Re: scaling logic signal voltage on: April 17, 2014, 12:15:44 am
I think you are being a bit hard on this guy. He asked a perfectly reasionable question.
Most analogue switches I have seen need a 0 to 5V control voltage requirement.
If not you are better basing the audio signal to 2.5V with two resistors and a capacitor.
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