Description M5Stack DLight Unit is a compact ambient light sensor module built around the BH1750FVI illuminance sensor. With a 16-bit ADC and a 1 to 65535 lx detection range, it works as a practical digital illuminance sensor for projects that need precise light detection over I2C. That makes this module a good fit for light intensity monitoring, adaptive lighting, and smart brightness control in embedded devices. Features M5Stack DLight Unit uses the BH1750FVI as a precise ambient light sensor module. This digital illuminance sensor communicates over I2C at address 0x23. The 16-bit ADC supports a wide 1 to 65535 lx measurement range. Low power consumption makes it suitable for continuous light intensity monitoring. It is useful for smart brightness control, environmental sensing, and display backlight adjustment. Specifications Product Unit DLight 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 Product Size 32.0 x 24.0 x 8.0mm Product Weight 4.8g Package Size 138.0 x 93.0 x 9.0mm Gross Weight 10.0g Applications M5Stack DLight Unit is useful wherever an ambient light sensor module is needed for environmental awareness or illumination-based control. Typical use cases include light intensity monitoring, screen and lamp regulation, energy-aware automation, and smart brightness control in portable or fixed embedded systems. Product List 1 x Unit DLight 1 x HY2.0-4P Grove connection cable (20cm) Other Content The official size drawing is useful when planning enclosure fit, mounting position, or front-panel sensor exposure. Resources M5Stack DLight Unit Official Docs BH1750FVI Datasheet M5-DLight Library Unit DLight Structure Files Unit DLight UIFlow Docs FAQ What is this module mainly used for?It is an ambient light sensor module for light intensity monitoring, adaptive illumination, and smart brightness control. Why choose this sensor?M5Stack DLight Unit works as a simple digital illuminance sensor over I2C and gives stable light measurements with low power consumption.
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