RGBW Light
Experience the true colors beyond the spectrum.
🛆 RGBW Chip
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.
Technological Capabilities
| Characteristic | Description |
|---|---|
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 |
🛆 Hardware Integration
Integration is straightforward. The light sensor only requires a decoupling capacitor of 100nF (see page 6 of the datasheet).
| Pin Number | Symbol | Description |
|---|---|---|
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 |
🛆 Documentation
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