Abstract: “This paper designs and implements a capacitive non-contact detection sensor using parasitic capacitance and pull-up resistance. The proposed sensor replaces the peripheral components of existing sensors with the parasitic capacitance and pull-up resistance inherent in the Arduino, thereby reducing the sensor design cost. It also provides stable output by using experimentally designed compensation coefficients and filters.”

Keywords: MCU, Arduino, App Inventor, Parasitic Capacitance, Pull-up Resistance