The TSL2591 light sensor is an advanced digital light sensor, suitable for use in various lighting conditions. Compared to low-cost cadmium sulfide cells, this sensor is more accurate, allowing precise lux calculations and is adjustable for different gain/timing factors. It features a light detection range from 188 DULUX to 88,000 lux. It includes both infrared and full-spectrum diodes, which can measure infrared, full spectrum, or visible light respectively. The TSL2591 has a tremendous dynamic range of 600 million to 1.

Product parameters:

• Interface type: IIC
• Voltage range: 3.3V-5V
• Dynamic range count: 1,600,000,000
• Lux sensitivity range: 188 uLux, up to 88,000 lumens input measurement.
• Temperature range: -30°C~80°C
• Dimensions: 19mm x 16mm x 1mm

Pin definition:

• VIN: Power +
• GND: Ground
• SCL: I2C serial clock line
• SDA: I2C serial data line
• INT: Interrupt pin