This Wireling lets you measure ambient light and color temperature via the TCS3472 Color Sensor and onboard emitting LEDs. This I²C sensor measures red, green, blue and clear light with 16-bit resolution. The interrupt registers may be used to set threshold values independently for each color register (RGBC) to improve system efficiency and avoid continuous polling of the sensor.
AMS TCS3472 Color Sensor Specs
TinyDuino Power Requirements