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Use this tag for questions about selecting, connecting, using, and debugging sensors.

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UVB sensing with Arduino

The answer to your question is that the best place to look is above the consumer range, at some higher-end UV sensors that are not generally suitable for the little Arduino demos due to price, but may …
harry_p_6's user avatar
  • 175
2 votes
Accepted

Don't pee there! Device

You probably will want a moisture sensor like this one (there are many variations of this). This will return one signal when dry, and another when wet. You will need a Buzzer to make a sound as well …
harry_p_6's user avatar
  • 175