Unit DLight
Description
Unit DLight is a digital ambient light detection sensor that uses the BH1750FVI illuminance sensor IC (I2C interface). It has a built-in 16-bit AD converter supporting illuminance value detection ranging from 1 to 65535 lx. It is characterized by its small size and low power consumption, making it suitable for various illuminance detection and light control adjustment scenarios.
Features
- I2C communication interface (addr: 0x23)
- Digital conversion of illuminance
- Low dependency on light sources (can detect incandescent, fluorescent, halogen, white LED, and sunlight)
- Detection range (1 ~ 65535 lx)
- HY2.0-4P interface
Includes
- 1 x Unit DLight
Applications
- Illuminance detection
Specifications
| Specification | Parameter |
|---|---|
| Sensor Model | BH1750FVI |
| Illuminance Detection Range | 1 ~ 65535 lx |
| Communication Interface | I2C communication interface (addr: 0x23) |
| Peak Sensitivity Wavelength Typical Value | 560nm |
| Operating Current | < 5V@143uA |
| AD Conversion Depth | 16bit |
| Net Weight | 4.8g |
| Gross Weight | 10g |
| Product Dimensions | 32 x 24 x 8mm |
| Package Dimensions | 93 x 138 x 10mm |
Schematics
PinMap
Unit DLight
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Model Size
Datasheets
Softwares
Arduino
- Unit DLight Arduino Library
- Unit DLight Example with M5Atom
- Unit DLight Example with M5Core
- Unit DLight Example with M5Core2
- Unit DLight Example with M5StickC
- Unit DLight Example with M5StickCPlus
UIFlow 1.0
UIFlow 2.0
Video
Illuminance Value Detection
FAQ
What is the difference between a digital ambient light sensor and a light intensity detection sensor? (Can computer screen brightness be measured?)
- Illuminance: Refers to how much light is received at a certain place, measured in lux.
- Brightness: The brightness perceived by the human eye, measured in candela per square meter (cd/㎡).
- Illuminance and Brightness: One refers to how much light is received per unit area, and the other refers to how bright it appears per unit area.
- Brightness is related to reflectivity; the reflectivity of the palm and the back of the hand is different, leading to differences in brightness.
- Therefore, the result output by the digital ambient light sensor is the amount of light, and the light source can be incandescent, fluorescent, halogen, white LED, or sunlight.
- The light intensity detection sensor outputs an analog value of light brightness, which can be divided into ultraviolet, infrared, and visible light photodiodes. Here, our sensor is a visible light intensity detection sensor.