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  • Design Considerations: Enabling Touch Key Capability
    Capacitive touch switch sensitivity and anti-noise performance are influenced by many factors such as electrode shape and size, wire routing, patterns surrounding the electrode, overlay panel thickness, inclusion of air gap, and more. All of these factors must be taken into consideration when
  • Capacitive Touch Sense Solutions
    A touch-sensitive switch is a switch that is implemented as a trace on a printed circuit board. The architecture of the trace creates a capacitive element on the board. Touching this trace with your finger creates a change in capacitance, which is detectable using a variety of techniques
  • Introduction to Capacitive Sensing
    AN1101 Introduction to Capacitive Sensing A SHORT HISTORY Author: Tom Perme Microchip Technology Inc. While capacitive sensing has been around for more than 50 years, it is becoming increasingly easier to implement and more popular. A classic example of a INTRODUCTION capacitive switch is the Touch
  • Capacitive Multibutton Configurations
    for capacitive sensing as high- read AN1101 prior to this application note. lighted. The channel of select must be the same on each interanl multiplexer. So, when switching buttons This application note will discuss three different from one to the next, ensure that they are the same. approaches
  • Control Panel Designs with Membrane Switches
    The membrane switch is a control panel that has proven itself over the years as a very reliable solution. for, among other things, standalone applications. Membrane switches are also used in combination. with other operating techniques, such as resistive or capacitive touch screens.

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