4 ms·

Pay more for the humidity sensor. Not the resistive ones, they fail after a short time.

• HeyLaughingBoy 7y ago
  I'll go a step further. Don't pay for any sensor, you can make your own resistive sensor from a couple of resistors. The reason they fail is oxidation on one terminal. If you alternate the polarity as you read the sensor, it avoids that problem.
  • wrs 7y ago
    Adafruit has a cheap capacitive sensor (using a micro controller with built in touch sensor circuitry) — but not that cheap. The polarity flip is a clever idea. Well, part of the fun is wildly over-engineering the thing, right?
  • gsich 7y ago
    Yes, but lifetime is still not the best.
  • jamiek88 7y ago
    Do you have any guide to this you’ve seen or can recommend?
    • HeyLaughingBoy 7y ago
      Nope. I just did it once. I'll look around and see if I drew up a schematic.