[James Eckert] got his hands on a Freescale MPR121 capacitive touch sensor. The chip in question speaks I2C and senses up to twelve simultaneous capacitive sense electrodes; break-out boards are ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

This approach, whether resistive or capacitive, demands rigid materials ... flow resistance-based sensors offer greater ...

It is notable that the detection principle of the interdigitated capacitive detectors can be ... Zhong Z Graphene nanoelectronic heterodyne sensor for rapid and sensitive vapour detection.