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Choosing Self-capacitance and Mutual-capacitance as per the Application in PSoC® 4 – KBA220228

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Choosing Self-capacitance and Mutual-capacitance as per the Application in PSoC® 4 – KBA220228

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Translation - Japanese:  PSoC®4のアプリケーションによる自己容量と相互容量の選択 – KBA220228 - Community Translated (JA)

Question:

How do I choose between self-capacitance and mutual-capacitance for an application?

Answer:

The following table lists the preference for choosing self- or mutual-capacitance sensing for different applications:

Usage

Self-capacitance

Self-capacitance + Shield

Mutual-capacitance

Regular buttons or Sliders (no waterproofing)

Preferred

Preferred

Preferred

Waterproof buttons or Sliders

Not Preferred

Preferred

Not preferred

Matrix keyboards (one button at time)

Preferred

Preferred

Preferred

Matrix keyboards (multiple buttons at time)

Not Preferred

Not

Preferred

Preferred

Proximity sensors

Less Preferred

Preferred

Less Preferred

Liquid level sensors

Preferred

Preferred

Preferred

Encoders or Position sensors

Less Preferred

Less Preferred

Preferred

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Last update:
‎Sep 18, 2017 03:44 AM
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