tcs34725 rgb light color sensor library and wiring for arduino

This is clearly an issue with calibration, we found an effective way of calibrating our sensor to our needs, but this is not a reliable calibration method.

This is clearly visible when connecting an RGB LED, it will change colour, but the colour change might not be visible, an issue is also that generally blue LEDs have a higher energy output so it might overpower.

So a red object might cause the red value to rise by 30, not by 255. What we have been able to get it is what I would call relative RGB, as the colour it is sensing is clearly visible by one value spiking, but it's not within the 0-255 range. For the best readings we also had to put the object directly on top of the sensor, which could be an issue if you want to secure it in some sort of casing. It will give you a colour within the same spectrum (if you show it yellow, it will output a yellowish colour), but most sensors we found had a tendency to create very dark and 'muddy' colours that are a 60/40 split between brown and the desired colour. Firstly, the sensors are good at distinguishing which color is present (as you would expect), but we haven't been able to get good absolute RGB from the sensor (as in, point a 0,255,0 coloured object at it, it won't give 0,255,0). Throughout our exploration of the sensor, we can clearly see its potential application in both industrial and arty ways.

Tcs34725 rgb light color sensor library and wiring for arduino