PCA8885 Capacitive 8-channel touch and proximity sensor with auto-calibration and very low power consumption Rev.
4 — 13 March 2014 Product data sheet 1.
General description The integrated circuit PCA8885 is a capacitive 8-channel touch and proximity sensor that uses a patented (EDISEN) method to detect a change in capacitance on remote sensing plates.
Changes in the static capacitances (as opposed to dynamic capacitance changes) are automatically compensated using continuous auto-calibration.
Remote sensing plates (for example, conductive foils) can be connected to the IC1 using coaxial cable.
The eight input channels operate independently of each other.
There is also a built-in option ...

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