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Is resistive multi-touch a possibility with eGUI

Question asked by Michael Thomas on Apr 15, 2016
Latest reply on Apr 15, 2016 by EARL GOODRICH

We are close to launching a product that uses eGUI on a K22.  Our LCD is a resistive touchscreen.

 

Recently, testing found an issue on our Home Screen.  We have 3 buttons spaced across the bottom of the screen.  If done right, testing shows that touching the leftmost and rightmost buttons at the same time can trigger the button in the middle.

 

Since we are using a voltage to interpret where touches are in the X and Y coordinate, we've used two seperate touches to effectively fake eGUI into believing that there was a single touch on that middle button.

 

This may just be a limit of the resistive touchscreen, but I was wondering if there might be a software solution to this problem.

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