- PRODUCT DETAILS
COLOR is color recognition unit integrated with TCS3472 chipset. As the name says, COLOR is able to detect color value and return RGB data as response.
Identify color principle: The TCS3472 chipset integrated with 3*4 array of filtered photodiodes and a 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).
Chromaticity Calculation Process Overview:
When we get coordinates (x, y), please reference the below figure so as to get the recommended color.
This Unit communicates with the M5Core via the GROVE A interface(I2C). Address is 0x29.
- 1x COLOR Unit
- 1x Grove Cable
- Product Color Verification
- Color tracking robot
LEARN AND DOCUMENTS
This sensor detects the three primaries (RGB) and "white" to calculate absolute and relative color values.
The detection speed is quite fast, several times a second. But you'll need to linearly calibrate your detector to get a "reality-correct" result.
Fortunately the sensor curve is calibrated at the factory!
It comes with a quick and easy "Getting started" Arduino IDE .ino sketch so you can just plug it in and try it out.
There's MANY documents online for this sensor if you want to plunge into the depths of its workings and features. It's a popular and well recognised item.
ONE limitation you should be aware of: The two cool white LED's are wired directly to the Grove plugs power. This means you wont be able to turn these two white LED's off, in order to analyse colors produced by LED's/screens or anything else that emits its own light.
It's a great little product!
I bought this as a gift for my brother. He enjoys it enough that I'll probably pick up the same order for myself.
Compliant product, fast shipping.
Very professional looking! Good mail tracking.