Capacitive sensing as a user input medium is no longer a fringe technology relegated to select products. It is now a mature technology employed in thousands of products and millions of units.

Now that we have discussed the theory about the sigma-delta modulator, let us design a simple proximity sensor that will detect an approaching hand and switch on an LED. A 0.5 mm 2 wire, 10 cm long, ...

Remote Sensing explores sound detection through tree antennas and copper wires in Hinkley, CA. Throughout the last century, Southern California drove technologies developed to detect the undetectable ...