A Color Sensor That Works

A Color Sensor That Works

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Components and supplies

About this project

This project is based on the Grove - I2C Color Sensor, with enhancement using the Grove - Variable Color LED instead of the former white Led. In more there are improvements at the Arduino sketch and a nice Processing sketch for visualizing the results.

Step by Step Introduction

STEPS TO FOLLOW:

  • * Hacking the Variable Color LED<
    >
  • You'll have to remove the LED, and add copper wires in order to align the top of the led with the top of the colour sensor:
  • * mechanical assembly
  • Join the two PCB together and use glue to maintain the LED in place.
  • I used a glass of 4mm thickness on the top of this sensor.
  • * wiring it all together
  • * Loading the Arduino sketch
  • * Install and launch the Processing sketch
  • * Calibration
  • Place a white paper sheet on top of the glass of your sensor.<
    >
  • Then adjust the RVB LED's potentiometers in order to obtain values near 300 for Red, Green, and Blue, and 550 for the Clr (see picture below):
  • * Play with it

ENJOY !

Some Usefull Links:

http://www5.informatik.tu-muenchen.de/lehre/vorlesungen/graphik/info/csc/COL_21.htm

http://www.vitalcn.com/UploadSysFileshttps://statics3.seeedstudio.com/images/CIE1931grid.jpg

http://www.seeedstudio.com/wiki/Grove_-_I2C_Color_Sensor

http://www.tigercolor.com/color-lab/color-theory/color-theory-intro.htm

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