This Arduino Project Hub guide shows you how to set up an analog ... a capacitive soil moisture sensor with an Arduino. Like many Arduino sensors, soil moisture detectors only have three pins ...

A touch sensor, especially a capacitive ... the IRQ pin status, one digital pin can be used in the setup. More on that later. Now download the ZIP file and extract the MPR121 folder out of the ZIP ...

And, capacitive displacement sensors are even found in disk drives. These sensors produce an output: capacitance. Measuring this capacitance is an inherently analog problem that can be very tricky.

[SeanHodgins] has a project in mind where he needs to sample over 500 analog sensors. To get ready ... There are five input pins to the chip which lets you connect one analog pin to any one ...