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This Arduino Isn’t Coloration Blind


You possibly can sense a whole lot of issues with the precise sensor, and [Nikhil Nailwal] is right here to point out us the right way to sense colours utilizing a TCS230. The mission is a straightforward demo. It shows the colour and lights up an LED to correspond to the detected colour.

If you happen to haven’t seen the TCS230 earlier than, it’s a chip with an array of photosensors, for various gentle wavelengths. The controlling chip — an Arduino, on this case — can learn the depth of the chosen colour.

The TCS230 makes use of a 4 x 4 array of photodiodes, together with a Bayer filter. That’s, there are 4 detectors for pink, 4 for inexperienced, and 4 for blue. There are additionally 4 unfiltered detectors that support in low lighting detection.

The host laptop controls two traces to pick out which group of 4 detectors to learn. The output is a frequency from round 2 to 500 kHz that signifies the depth. You possibly can scale the output frequency for those who don’t wish to cope with increased frequencies.

From what we perceive, the sensor’s decision isn’t that nice. However for easy colour detection, it’s simple to make use of and efficient. There are very comparable chips just like the TCS3200 which have extra sensors, however work in the identical manner.

We’ve seen comparable initiatives, however we’re all the time struck how easy this sensor is to make use of. Mix these with an RGB LED and you may make a chameleon.

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