Here’s an app note from Microchip describing the best design practices when developing capacitive touch applications in noisy environments: This application note will begin by defining the problems caused by noise, and explain how that noise typically affects systems. Hardware guidelines will then be provided to help maximize the natural signal-to-noise ratio (SNR) of the application. […]
Tag Archives: touch sensing
AT42QT1010 touch panel underwater test
pppd did some some tests for his underwater touch panel using the AT42QT1010 and a DIY panel. The panel is constructed from aluminum sheets, foam, and duct tape. He is currently sorting out calibration issues, as right now it makes a great cat-drinking-water indicator. Via the forum.