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|   November 18, 2008 at 9:05 AM

Any idea what the power consumption is when applying the 5V?

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|   November 18, 2008 at 11:20 AM

Why are four GPIOs needed? Seems to me that if your goal of using more than two lines is to conserve power by powering the device intermittently, you should only need three lines, right? Where's the DATA SHEET?

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|   November 18, 2008 at 4:31 PM

Very nice find.. Any chance at getting a surface mount PCB connector for this part? Sweet.

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|   November 24, 2008 at 7:04 PM

If you use scissors very carefully on the connector, the leads spread enough to solder easily to any sort of adapter. I used a SSOP to dip adapter.

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|   November 22, 2008 at 9:42 AM

It's not strange that this type of touch screen requires four GPIOs. The four wires are from top, bottom, left and right side of the screen. While supplying 5V on the top side wire and 0V on the bottom side wire, you can sense the vertical position by analog voltage output of left and/or right wires.

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|   January  9, 2009 at 3:45 AM

If you are carefully you can sold four thin wires to he connector. The consumption when applying 5v is about 6.5 to 12 mA, is a very versatile device and its prize cant be better!!!!

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|   April  9, 2009 at 6:14 AM

Anyone used one of these? which 2 pins are for 5V and which 2 do you take the readings from?

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|   June 24, 2009 at 8:26 AM

Hi all,
Hope this helps : I wrote a tutorial, with wiring schema and a working piece of code. If's you're interrested, with that you should see you touch position on your serial port within an hour.

http://kalshagar.wikispaces.com/Arduino+and+a+Nintendo+DS+touch+screen

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|   July 21, 2009 at 2:44 PM

Thank you for the tutorial! It helped a lot.

I would like to point out that the analogRead() method on the Arduino doesn't know about pins 14-19; those pin numbers are only recognized when you want to use the analog pins with digitalOut().

Japalan uses the "true" pin numbers (14-17) and then subtracts '14' from those values when he uses analogRead() so that analogRead() gets numbers in the range it can deal with (0-3).

Not all that hard but confused me for a bit...

Also, I'm not quite getting full ranges of values. A touch at the very edge of the screen is giving me a reading of about 60 (out of 1024 max analog input). I'm wondering if it's worth bounding these results...

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|   September 14, 2009 at 1:52 PM

Does anyone know if this fits the LCD-00710?

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|   October  7, 2009 at 11:50 AM

Does anyone know if this will work if it is bent in a U shape? I want to use it with a display about half this size in a space-constrained device. I'm worried the bend area will produce false positive readings.

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|   October 15, 2009 at 1:30 PM

This thing is made up of two sheets of plastic. The top layer is thin and flexable but the backing is hard plastic. It feels like this thing will crack if it's bent at all...

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|   October 15, 2009 at 1:38 PM

jamis: Also, I'm not quite getting full ranges of values. A touch at the very edge of the screen is giving me a reading of about 60 (out of 1024 max analog input). I'm wondering if it's worth bounding these results...

I ended up using this screen with Japalan's resistive values and after bounding the results between 90 and 690 on the x-axis and between 120 and 720 on the y-axis, I was able to get a good 600x600 square of useable values.

I may put up a PIC tutorial/example after I clean up some of the code I have. I wrote the code using the Picc Lite C compiler...

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|   November 10, 2009 at 8:06 PM

That would be great if you could post a tutorial, or even just your working code.

Im trying to get this working on a PIC18f452 but its just a little over my head at the moment.

cheers,

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|   November 21, 2009 at 4:08 PM

Any idea what the size of this screen is (in pixels?) I'm trying to figure out a formula to determine the pixel location from the value of the analogRead().

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|   November 25, 2009 at 5:15 PM

I found a nice tutorial here on how to use this with the arduino.

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|   November 30, 2009 at 6:09 PM

@Tycho

ARGH! I HATE that tutorial! It tells you to use resistors, etc. which are ABSOLUTELY not necessary. Here's a better "tutorial" (The code explains what's going on and how to wire, etc.), posted on the Arduino.cc forums:

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1243499684/7#2

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|   January 27, 2010 at 5:25 AM

Is this any different from the one at DealExtreme?

The price over there is 4x less than SFE's.

http://www.dealextreme.com/details.dx/sku.3245

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|   February  2, 2010 at 10:47 AM

Will it work with 3v ?
A datasheet would have been good...