Adafruit 5591 LTR-329 Light Sensor Board
Adafruit 5591 LTR-329 Light Sensor Board features a compact, low-cost I2C digital sensor ideal for projects that require reliable light measurement across a broad range, from 0 lux to 65,000 lux. The Adafruit 5591 LTR-329 Light Sensor Board features the LITEON LTR-329ALS-01 sensor and offers 16-bit resolution for the Infrared and Visible+IR spectrums. The sensor lets users determine human-visible light levels by calculating the difference between readings. The sensor's PCB, designed in Adafruit's STEMMA QT form factor, includes a voltage regulator and level-shifting circuitry, making it compatible with 3.3V and 5V systems like Raspberry Pi and Arduino. It also features Qwiic-compatible connectors for easy, solder-free connections. This versatile sensor is perfect for applications such as adjusting display brightness, detecting light intensity for robots, and distinguishing between day and night.
Features
- Onboard LITEON LTR-329ALS-01 sensor
- I2C interface with a fast mode up to 400kbit/s with address 0x29 (cannot be changed)
- Ultra-small ChipLED package
- Built-in temperature compensation circuit
- Low active power consumption with standby mode
- -30°C to +70°C operating temperature ranges
- Light sensor close to the human eye spectral response
- Immunity to IR/UV light source
- Automatically rejects 50/60Hz lighting flicker
- Six dynamic ranges from 0.01 lux to 64k lux
- 16-bit effective resolution
- Halogen-free and RoHS compliant
Applications
- Display brightness
- Detecting light intensity for robots
- Distinguishing between day and night