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1  Using Arduino / Project Guidance / Re: storing and recalling values on a digital pot using Arduino on: July 10, 2012, 10:22:35 pm
You don't need a digital pot. You control the LED brightness with PWM signals from an analogWrite().

Yes this is true for just the LEDs but the actuall final proyect is not with LED, I just made the reference to describe the general idea of the proyect.
2  Using Arduino / Project Guidance / Re: storing and recalling values on a digital pot using Arduino on: July 10, 2012, 10:19:06 pm
If you can set the leds while connected to a PC then your options are much wider, you won't even need the pot.

I could use the PC to test the bottons but I will need the pot for the idea behind the final product.
3  Using Arduino / Project Guidance / Re: storing and recalling values on a digital pot using Arduino on: July 10, 2012, 04:43:40 pm
My problem is setting up and writing the hole sketch to make it work since I can't find an example for something close to what I want. Like I said I'm new on programing languages.
4  Using Arduino / Project Guidance / storing and recalling values on a digital pot using Arduino on: July 10, 2012, 04:22:20 pm
I'm new to Arduino and while the tutorials are good they don't give me a clear example of what I want.


I want to be able to manually set the value (brightness) by using a normal pot... but use the digital pot to recall those stored values. I want to use a digital pot (like the AD5206) to be able to control lets say the output values of 2 LEDs and store them in 3 presets, for example:

- boton 1 will have LED A at max value and LED B at half value
- boton 2 will have both LEDs at half value
- and boton 3, have LED A at half value and LED B at max value

These presets will be recalled by presing one of 3 bottons so I can recall the different values (brigthness) of the two LEDs at the same time.

Can someone help me on this?
5  Using Arduino / Storage / Re: how to store different values of a pot to be called up latter? on: March 19, 2012, 10:05:35 am
Ok. Based on your project instead of ¨storing¨ a moving servo it would be like storing a couple of fix positions of that servo instead of the actual movement and recall them thru your switch (I want to store them in individual buttons).
6  Using Arduino / General Electronics / Re: 250k, 500k and 1meg digital pots on: March 18, 2012, 08:11:08 pm
Why do you need such values?

Because since its an audio project the value of them affect the final audio signal that will come out, so I need to use the same value.
7  Using Arduino / Storage / Re: how to store different values of a pot to be called up latter? on: March 18, 2012, 08:01:42 pm
Maybe you can help me out with my project? I'll send you a PM.
8  Using Arduino / General Electronics / Re: 250k, 500k and 1meg digital pots on: March 16, 2012, 12:05:17 pm
So what do I need to look for a pot that I can use like the AD5206 but with other KOhm values? there are just too much specs on them that I don't understand.
9  Using Arduino / General Electronics / 250k, 500k and 1meg digital pots on: March 14, 2012, 12:36:13 pm
Where can I get them? The AD5206 only comes in 10k and 100k but the project I'll doing probably needs other values (250k and 500k), what where can I get other chips with this values?
10  Topics / Device Hacking / Re: I want to move a knob to send input data to the digital pot, how do I do that? on: March 12, 2012, 11:59:45 pm
I want to be able to store 3 different positions for the digital pot but to figure out what those positions are I want to move a pot to the desire position instead of writing the code with the actual output position. It's for a simpler user interface.
11  Using Arduino / Sensors / controlling a digital pot thru a knob on: March 12, 2012, 11:55:50 pm
what do I need to control a digital pot (send input data) manually using a knob?
12  Topics / Device Hacking / I want to move a knob to send input data to the digital pot, how do I do that? on: March 12, 2012, 11:38:56 pm
I'm not sure on how to feed data to a digital pot manually moving a knob like on an analog pot. What do I need for this?
13  Using Arduino / Storage / Re: how to store different values of a pot to be called up latter? on: February 10, 2012, 01:24:59 am
How else did you think you could do it?


Don't know, since I'm new at this I'm clueless on how all of this works together really! I thougth this works just like a pwm output.

Last couple of days I haven't taken time to make progress on this but I've been giving it thought, and I don't know if I have been looking at it from the wrong point of view. What I want this to do is just to store the value that's coming out of the pots on the pedal in say 3 different positions (at 25%, 60% and 100% of the pot) and use the Arduino to send that value out in to the pedals own board just like if I would have instantly change the pot manually.

PS:
This guy made something similar, but he stored different types of waves to generate different ways to make on pot move.

video: http://www.dailymotion.com/video/xa7til_collin-s-lab-guitar-pedal-hacking-w_school
code: http://code.google.com/p/makezine/downloads/list?can=2&q=pedal&colspec=Filename+Summary+Uploaded+ReleaseDate+Size+DownloadCount
14  Using Arduino / Storage / Re: how to store different values of a pot to be called up latter? on: February 07, 2012, 12:37:47 pm
So I need to use a digital pot to have the different output pot values?
15  Using Arduino / Storage / Re: how to store different values of a pot to be called up latter? on: February 06, 2012, 09:54:20 pm
I know I'm asking for maybe too much help but I don't seem to find a sketch to base my project from that uses all that I need.
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