High-precision ambient light sensor matching human eye response, with IR rejection. Measures 312.5 μlux-117 klux. STEMMA-QT/Qwiic interface
Designed by Lord's Boards in United States of America
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Built this light sensor breakout to handle automatic brightness control in my display projects. The OPT4001 is a precision light sensor that matches human eye sensitivity, which means it sees light t…
Read More…Built this light sensor breakout to handle automatic brightness control in my display projects. The OPT4001 is a precision light sensor that matches human eye sensitivity, which means it sees light the same way we do. The built-in IR rejection helps avoid false readings from sunlight, and it handles auto-ranging for you - from near-dark to bright daylight. Just connect I2C via a STEMMA-QT or Qwiic connector, and you've got accurate light readings without the usual calibration headaches.
There is an existing CircuitPython library for the OPT4001. I am working on support for Arduino/Zephyr. https://github.com/PyCubed-Mini/CircuitPython_OPT4001
Additional features: - 28-bit effective dynamic range - Configurable update rate - Optional interrupt pin exposed - 3.3V operation, 5V tolerant I/O - Address select jumper on underside of device - Open source, designed in KiCAD 8
Notes: Default I2C address is: 0b1000100. If A1 jumper is closed, I2C address changes to 0b1000101.
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