Hi folks, I'm working on a low-power, battery-based application that will have a small (QVGA) LCD, along with a resistive touch screen. Our customer really doesn't want any buttons, so I am trying to find out if any of you have come up with a way to wake a microcontroller from a deep low-power mode using a tap on a resistive touch screen. I know that TI makes some touch screen control ICs, so if there is a way to use one of them to generate a signal that indicates that the screen has been pressed by an operator, we may be able to use that as an input to “wake” the microcontroller from whatever low-power mode it’s in. Hoping that one of you might have some ideas on components and possible approaches to do this. The touch screens are most likely 4 wire resistive. Thanks for your help, Scott
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