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Resistive Touch Screen - Driver required?

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wind_blast942

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Hi

I am currently doing a project that requires the use of a touchscreen. The one that I plan to use is this : RS Singapore | World Leading Distributor of Electronics, Electromechanical and Industrial Components

However I am not sure for this kind of touchscreen, do I have to purchase ab additional driver chip to make it work or is it trivial enough to program the pic 16 that I already have? As I have budget constriants, I was hoping that the additional chip is not needed.

Any help is much appreciated thanks.
 

dr pepper

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You could program a pic to do that, scan the rows with a logic '1' and measure the analog voltage on the columns for feedback, noise is an issue, you might want to put a decodable pulse train on the rows so you know your feedback isnt just noise.
There are probably commercial chips for doing that, with an output similar to a keyboard. or mouse.
 

dhaval4987

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you can program the controller to do it and can do without additional driver IC. But you will have to caliberate by your self. using driver- you will find much better caliberated results but you will miss the fun of writing a code by yourself to read the touch screen data!
 

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