Adafruit TSL2561 Digital Luminosity/Lux/Light Sensor Breakout

The TSL2561 luminosity sensor elevates light detection with its advanced digital features, accommodating a vast range of illumination scenarios with precision.

With capabilities far exceeding those of low-cost CdS cells, this sensor offers exact lux calculations and configurable gain/timing, enabling real-time detection from 0.1 to over 40,000 Lux. The inclusion of both infrared and full spectrum diodes sets it apart, allowing separate measurements of infrared, full-spectrum, and human-visible light, providing a closer representation of what our eyes perceive.

Updated with a 3.3V regulator and level shifting circuitry, it's compatible with any 3-5V power/logic microcontroller. It features a digital (I2C) interface, supporting up to three sensors on one board with distinct I2C addresses. The integrated ADC ensures compatibility even with microcontrollers lacking analog inputs.

Its low current draw makes it perfect for power-conscious data logging systems, consuming approximately 0.5mA when active and less than 15µA in power-down mode. Comprehensive documentation, including a tutorial on wiring and programming with CircuitPython or Arduino, is available to help you get started quickly.