Hello guys.
I'm relatively new about Arduino. I'm looking for help with a new project.
I'd like to develop kind of a graphic tablet that tracks the XY pen coordinates on a working area and return the position to Arduino. I want the pen to be permanently tracked on the tablet when it's touch it or near to it.
Well, does anybody knows a similar project or something that can help me, please?
Some people commented about IR triangulation.
Guys, thank you all so much in advance!
Leonardo
You can get touch sensitive devices. I have one which, I think, was designed for a Nintendo DS. I got it from HobbyTronics. I also have a bigger one that I was going to use to add touch to an original ASUS EEE. These devices only work when the pen is touching them. The pen is just a pointer - for example a knitting needle.
I also have (or had) a graphics tablet for a PC which was sensitive when the special pen was near it. But it was a USB device.
...R
I'm trying to visualise what you're getting at, probably a good idea to draw a sketch of what you mean.
I can't see how an LED in the middle of your table, triggering a pair of receivers, is going to result in a position.
Ok Jimbo, do you have any idea of how making it works?
Imagine a 30x30cm area (XY) and i need to return to the display the objects coordinate.
I need the object always tracked.
i thought about using touchscreens from notebooks or similar but the problems are two:
1st- It only tracks the object(pen in this case) when it touches the screen;
2nd- Resistive screens can also sense fingers, i just want the "pen".
Any way that works will be good to me.
leonardomalburg:
1st- It only tracks the object(pen in this case) when it touches the screen;
2nd- Resistive screens can also sense fingers, i just want the "pen".
Based on this I suspect you have a particular project in mind that you have not told us about. If you describe the entire project we will be much better equipped to help.
Also based on those two points I suspect you will need an active pen - for example one with a light in it - so that a finger can't do the job. Having tried (and failed) very many years ago to make a crude pen operated system I reckon it is almost totally impractical to make a DIY system with sufficient sensors so that, for example, they could detect where a light is aimed.
The graphics tablet that I mentioned earlier may meet your requirement but would need at least a Raspberry Pi for its USB output.
...R
leonardomalburg:
Hello guys.I'm relatively new about Arduino. I'm looking for help with a new project.
I'd like to develop kind of a graphic tablet that tracks the XY pen coordinates on a working area and return the position to Arduino. I want the pen to be permanently tracked on the tablet when it's touch it or near to it.Well, does anybody knows a similar project or something that can help me, please?
Some people commented about IR triangulation.Guys, thank you all so much in advance!
Leonardo
Why not use an old graphics digitizer tablet, the type commonly used to trace drawings into CAD programs. These are available in sizes from 6" x 6" up to 4' x 6'. Most of the older ones were serial interface, ASCII output, 4 button, 16 button, or stylus cursor, accuracy of around 0.002". Calcomp, GTCO, Summagraphics, Numonics were some of the brand names.
Hi,
Look at this and the resources such as libraries ,they have examples of what you are trying to do, draw on a touch screen with a pen and have the screen draw the line you draw.
http://www.seeedstudio.com/depot/28-TFT-Touch-Shield-V20-p-1286.html
Hope it helps.
google tft touchscreens arduino
I did....
Tom...... 
Just for you to know, i found it.
I'm gonna use this sample: - YouTube
BIn the digitizer/tablet market, XP-Pen makes great tablets both with and without a screen.
I have used XP-Pen Deco 01 digital graphic tablet ( 10x6.25 Inch drawing area , 8192 Levels Pressure , 8 hotkeys , battery-free stylus ) for years; I find it perfectly satisfactory.
you may can have a look .
I think your advice is about 3 years too late to be useful.
...R