How the Capacitance touch sensor (button-switch) works

Link to page: http://pcbheaven.com/wikipages/How_a_...

In this theory page, i explain how the touch switches (buttons) work. I cover various methods, the resistance touch sensor, the AC Hum touch sensor and the capacitance touch sensor. I extensively cover the capacitance touch sensors. Also, i explain how a capacitance touch sensor can be used to make buttons that are covered under non-conductive materials, such as plastic, wood, plexiglas etc.

This video is the second part, in which i explain the capacitance touch sensing techniques.

• Category

  • Science & Technology

• License

  • Standard YouTube License