misc2

Capacitive Cover Sensor


Basics: Capacitive sensing

When you have two conducting plates facing ech other, they store a little bit of electricity. The more they are together, the more capacitence they have. This can be measured and used. Capacitive sensing, in this case, is using the capacitence of the human body. The nearer the hand and book are, the more capacity is measured. This is transformed into an animation with vvvv.

Installation

  • Download the Patch an extract it to your modules folder.
  • Load the Arduino file you find in path „C:\Users\Stefan\Downloads\00_CapacitiveCover_latest.zip\00_CapacitiveCover_latest\Arduino\CapacitiveSensor“ by usb on your Arduino Board
  • Take a breadboard, 3 wires, a clip and some resistors. In path „00_CapacitiveCover_latest.zip\00_CapacitiveCover_latest\div\“ you find a picture which explains how to setup wires and resistor:

  • Caution: The website and book recommend 10 M-Ohm resistors. This didnt work fine for me, so I took two 1 M-Ohm resistors and put them in series. This causes a total Ohm- value of 2 M-Ohm and worked very fine.
  • Note that the measurement of the capacitence has some degrees of freedom like weather. So maybe you have to adjust your setting from day to day or even from room to room. The easiest way is to change the „minimum“ value and „maximum“ value in the patch itself.
    • „Start“ value means, no hand is near to the book - the book is closed.
    • „Open“ value can be readed when the hand touches the book - the book is open.


Here you find another installation guide.

misc2.txt · Zuletzt geändert: 2018/12/03 09:43 (Externe Bearbeitung)