Description M5Stack DLight HAT is a compact ambient light sensor HAT for the M5StickC and M5StickC Plus platform. Built around the BH1750FVI device, this BH1750FVI light sensor provides digital illuminance measurement over I2C with a wide 1 to 65535 lx range. It is a practical option for ambient light detection, adaptive displays, and smart brightness control in small embedded builds. Features M5Stack DLight HAT is compatible with M5StickC and M5StickC Plus. This ambient light sensor HAT uses the BH1750FVI device over I2C at address 0x23. The BH1750FVI light sensor supports 16-bit digital illuminance conversion. It detects a wide light range from 1 lx to 65535 lx. It works well for ambient light detection, display response, and smart brightness control. Specifications Product DLight HAT Sensor Model BH1750FVI Illumination Detection Range 1 - 65535 lx Communication Interface I2C communication interface (addr: 0x23) Typical Peak Sensitivity Wavelength 560nm Working Current