A sensor signal conditioner ... types of SSC are resistive and capacitive, with capacitive use more often.* The SSC is used in automotive, consumer, and industrial applications, among others. Fig. 1: ...

The same circuit works equally well in many other capacitance-sensing applications, such as a non-contact position sensor/motion limit switch (Figure 2). Figure 2 Motion limit/position sensing ...

A simple four-component circuit allows a single I/O line from any microcontroller to sense the states of two capacitive touch sensors. With so many cell phones, PDAs, and MP3 players using touch ...