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1  Using Arduino / Project Guidance / How to display the signal read from analog pin in LCD? on: August 02, 2013, 01:22:57 pm
kindly,i have 16*2 LCD with arduino mega. i want to write a code for display the analog signal read from pin (A0) at the LCD with the pin connection...with regards
2  Using Arduino / Project Guidance / Re: need help for design switching circuit please on: July 16, 2013, 09:11:36 am
it is DC circuit ..and the voltage is 5 volt, with no high loads....
3  Using Arduino / Project Guidance / need help for design switching circuit please on: July 16, 2013, 07:27:38 am
kindly, i have arduino control 4 circuits (c1,c2,c3 & c4) as shown in figure below..i want a switching circuit ,whenever(out1 & out2) triggered at same time ...(c1 & c3 ==> ON) & (c2 & c4 ==> OFF),...and at next trigger (c1 & c3 ==> OFF) & (c2 & c4 ==> ON).
which device i can use to do this circuit please?

4  Using Arduino / Programming Questions / need arduino mega 2560 external interrupt library on: June 23, 2013, 02:55:00 pm
kindly, i need arduino mega 2560 external interrupt library with some examples please
5  Using Arduino / Programming Questions / Re: need help to write a code please on: June 20, 2013, 11:35:52 am
yes
6  Using Arduino / Programming Questions / Re: need help to write a code please on: June 20, 2013, 10:14:46 am
thank you for the code dear sorcy...but your code will compare with just 2 elements of  b[50]  and  c[50] ..i can put 2 values instead of matrix..right?
7  Using Arduino / Programming Questions / Re: need help to write a code please on: June 20, 2013, 08:59:24 am
Code:
How big is the range of values for comparison?
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Is there any reason why these elements are not ordered?
the range between 1v to 3v
but i want to know the way of comparison then fix the range
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How many arrays are you using (4)?
they are 2 arrays...with 4 classes


8  Using Arduino / Programming Questions / Re: need help to write a code please on: June 20, 2013, 07:59:41 am
it is like windowing
9  Using Arduino / Microcontrollers / arduino code simulator??? on: June 20, 2013, 05:43:22 am
Kindly , i want arduino code simulator for free..to run the code step by step please
10  Using Arduino / Programming Questions / Re: need help to write a code please on: June 20, 2013, 03:34:48 am
in the figure below you will see that i have 2 arrays and 4 analog reads ...

i want to know the position of the analog signal in which part (1 or 2 or 3 or4) as below


11  Using Arduino / Programming Questions / Re: need help to write a code please on: June 20, 2013, 02:58:19 am
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Like what things? Can you try that sentence again?

like find the Mean absolute error or Mean squared  error
12  Using Arduino / Programming Questions / Re: need help to write a code please on: June 19, 2013, 04:17:40 pm
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Unfortunately, the Arduino doesn't have a "compare array of values to withing a specific threshold" instruction

i think it need a statistical operation to do like  this things

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Time scales are relative...
To the Arduino, the "same time" is on the order of microseconds.
To the human eye, the "same time" is on the order of 100's of milliseconds.
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for me i process human eye signal with arduino...
13  Using Arduino / Programming Questions / Re: need help to write a code please on: June 19, 2013, 11:20:18 am
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Define "same time".

To the Arduino?

To the human eye?

To a Physicist?

??????????????????
14  Using Arduino / Programming Questions / Re: need help to write a code please on: June 19, 2013, 10:54:12 am
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Use a hash or binary search to see if the first element is in the pattern array. Then check each one in turn, as soon as it fails to find a match quit the search.

good idea

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Remember, the arduino does not have much memory for a "database".

i will take it in my account..thank you

-----------------------but i want to check all the readings at the same time please help
15  Using Arduino / Programming Questions / Re: need help to write a code please on: June 19, 2013, 10:13:11 am
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the noise inherent in reading the analog input
good point
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I don't think a check for exact equality will work very well
it must have some error rate
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