M5 Stack Color Sensor RGB Unit (TCS3472)

COLOR is a color recognition unit integrated with the TCS3472 chipset. As the name says, COLOR is able to detect color value and return RGB data as a response.

Identify color principle: The TCS3472 chipset is integrated with a 3*4 array of filtered photodiodes and 16-bit analog-to-digital embedded converters. Out of the 12 photodiodes, 3 have red filters, 3 have green filters, 3 have blue filters and 3 have no filter (clear), which gives a total range of RGBA (RGB + Transparency)

When detecting the color of an object the TCS3472 returns data from four channels: red(R), green(G), blue(B) and clear(C)(non-filtered). The response from the red, green, and blue channels (RGB) can be used to determine a particular source’s chromaticity coordinates (x, y).

Applications:

• Product Color Verification
• Color tracking robot