UV sensors keep getting discontinued. We found this LTR-390 sensor that has both ambient and UV sensing around 300 to 350nm. What’s nice is it has I2C support so its a great STEMMA QT candidate. We wrote up a library and are using this UV disinfection bag to test it. It’s a nice and simple sensor with just enough knobs without being overwhelming. Check out the library here https://github.com/adafruit/Adafruit_LTR390 & video.
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