Adafruit SI1145 Digital UV Index / IR / Visible Light Sensor

SI1145 Digital UV Index Light Sensor is a new sensor from SiLabs with a calibrated light sensing algorithm that can calculate UV Index. It doesn't contain an actual UV sensing element, instead it approximates it based on visible & IR light from the sun. It's a digital sensor that works over I2C so just about any microcontroller can use it. The sensor also has individual visible and IR sensing elements so you can measure just about any kind of light - we only wrote our library to printout the 'counts' rather than the calculate the exact values of IR and Visible light so if you need precision Lux measurement check out the TSL2561.

Technical Details:

• IR Sensor Spectrum: Wavelength: 550nm-1000nm (centered on 800)
• Visible Light Sensor Spectrum: Wavelength: 400nm-800nm (centered on 530)
• Voltage Supply: Power with 3-5VDC
• Output Type: I2C address 0x60 (7-bit)
• Operating Temperature: -40°C ~ 85°C
• Weight: 3g
• Dimensions: 17.5 x 21.5 x 1mm

Documents:

• SI1145 Datasheet
• SI1145 Library, EagleCAD PCB files
• SI1145 Tutorial