[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 ...

Capacitive sensing ... parts to replicate a whole lot of touch interfaces – buttons can easily be made into a smallish keyboard, and the radial touch sensor will emulate the ‘wheel ...

First, you will learn about piezoresistive, capacitive, and vacuum sensors. This includes a deep dive ... the strain gauges are arranged in an unusual bridge circuit. Finally, we teach you about how ...

Explore a small board with sensors, versatile pins, and multiple connectivity options—designed for IoT projects. Read more!