RGBW Light
Experience the true colors beyond the spectrum.
Last updated
Experience the true colors beyond the spectrum.
Last updated
A light sensor uses photodiodes to detect light intensity levels in the three respective light bands (Red, Blue and Green).
The VEML6040 chip from VISHAY achieves the closest ambient light spectral sensitivity to real human eye responses. This makes it an excellent sensor for retranscribing the light spectrum we perceive. In addition, the sensor outputs a value for ambient light illumination (lux) and color temperature of backlight. It's a complete low-power light detector.
Package
OPLGA | 2x1.25x1mm
Technology
Filtron - providing a spectrum matching real human eye responses
Peak Sensitivity
650, 550, 450 (R, G, B)
Range of spectral bandwidth λ(0.5)(nm)
±35, ±35, ±40 (R, G, B)
Selectable detection range lux
515.4, 1031, 2062, 4124, 8248, or 16 496
Resolution
16-bit data output
Speed Mode
Up to 400kHz
Operating Temperature
-40°C ti +85°C
Current consumption
In Run mode : ~200 µA In Stop mode : ~800 nA
Integration is straightforward. The light sensor only requires a decoupling capacitor of 100nF (see page 6 of the datasheet).
1
GND
Connected to GND
2
SDA
I2C data bus Data Input & Output
3
SCL
I2C digital bus
Serial Clock Input
4
VDD
Power supply input
