Adafruit’s tutorial for reading analog values without an ADC relies on a single 1μF ceramic capacitor attached between a digital input and ground. By pulling the sensor line high for a ...

[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 ...

The Wheatstone bridge is a ubiquitous circuit configuration that is useful in detecting small changes in resistance.

Photo of Lindsey's low energy analog sensors for MV switchgear Low Energy Analog Sensors Compatible with SEL-700 Series Relays LEA ...

In addition, the common high-density DB-15 socket on a monitor is analog (see VGA). In the illustration below, BNC connectors have also been used for digital signals. Contrast with digital input.