Capacitive sensing libraries for the Arduino and just about every other ... and the radial touch sensor will emulate the ‘wheel’ interface on an iPod. Very cool stuff, and we can’t wait ...

[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 ...

namely a capacitive moisture sensor. Again, you’ll need to interface the sensor with your ESP32 board before connecting the ...