The TSL2591 light sensor is an advanced digital light sensor, suitable for use in various lighting conditions.<br> Compared to low-cost cadmium sulfide cells, this sensor offers higher accuracy, enabling precise lux calculations. It supports configurable gain and integration time settings, with a detection range from 0.000188 lux up to 88,000 lux. It features both infrared and full-spectrum photodiodes, allowing separate measurement of infrared, full-spectrum, and visible light.<br> The TSL2591 provides an extremely high dynamic range of 600,000,000:1. Note that the I²C address is fixed at 0x29 and cannot be changed.<br> The board includes a voltage regulator and operates within a supply voltage range of 3.3V to 5.0V.<br> It integrates a 16-bit ADC, making it compatible with any microcontroller—even those without analog inputs. Operating current is approximately 0.4 mA, dropping to less than 5 µA in power-down mode, making it ideal for low-power applications.<br> Interface type: I²C<br> Voltage range: 3.3V–5.0V<br> Dynamic range: 600,000,000:1<br> Lux range: 0.000188 lux to 88,000 lux<br> Operating temperature range: –30°C to +80°C<br> Dimensions: 19 mm × 16 mm × 1 mm<br> Pin definitions:<br> VIN: Power input (+)<br> GND: Ground<br> SCL: I²C clock line<br> SDA: I²C data line<br> INT: Interrupt output<br> Color: As shown<br> Material: Plastic<br> Package contents:<br> 1 × Digital Light Sensor Module<br> Note: Actual product color may vary slightly due to lighting conditions and display settings. Dimensional tolerance: ±1–3 mm.