Analog UV Light Sensor Breakout - GUVA-S12SD [PID:1918] - (AD76201)

Description:

Expand your light-sensing spectrum with this analog UV sensor module. It uses a UV photodiode, which can detect the 240–370 nm light range (covering UVB and most of the UVA spectrum). The photodiode's signal level is very small, in the nanoamp range, so we added an op-amp to amplify the signal to a more manageable volt level.

This sensor is much simpler than our Si1145 breakout, it only does one thing and provides an analog voltage output rather than requiring a complicated I2C setup procedure. This makes it better for simple projects. It also has a 'true' UV sensor rather than a calibrated light sensor. To use, power the sensor and op-amp by connecting V+ to 2.7 - 5.5 VDC and GND to ground. Then read the analog signal from the OUT pin. The output voltage is: Vo = 4.3 * Diode-Current-in-uA. So if the photocurrent is 1uA (9 mW/cm^2) then the output voltage is 4.3V. You can also convert the voltage to UV index by dividing the output voltage by 0.1V. So if the output voltage is 0.5V then the UV index is about 5.

Please note that our UV LEDs are 400nm, outside the range of this sensor, so if you're trying to test this sensor, don't use them! A UV tanning lamp or 'lizard lamp' will work much better.

Technical details:

- Datasheet

- Fritzing object in Adafruit Fritzing library

- PCB EagleCAD files in GitHub

- Dimensions: 10mm x 19mm x 2mm

Reference link