The color sensor (U8) onboard Thingy senses red, green, and blue light with a 0.005 – 40k lx dynamic range.
The sensor faces towards the blue transparent bottom case with light pipes guiding the light towards the sensor. To measure the color on a surface, the color sensor is accompanied with an RGB LED that can illuminate the surface enabling the color sensor to read the color of the reflected light. The color sensor is accessed through I2C (slave address 0x38).
Figure 1. Color sensor schematic
