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May 1, 2016
Tutorial - Soil Moisture Sensor Hookup Guide
about 4 years ago
I just started experimenting with the soil moisture sensor, but am having some problems with the readings. Basically if I stick it into water it generates a reading of about 580, and if I take it out the reading is about 280. After sticking it into very dry soil I still get a bouncy reading between 520 and 560.
Are these reading accurate? Is there maybe some documentations that I could look at? I read through all of the links provided, but cant seem to find a more accurate guide on this...
Also, do you recommend using any resistors? I saw in the schematics that a 10k resistor can be used...any suggestions on that?
I also used this to check voltage readings:
float getVoltage(int pin)
return (analogRead(pin) * 0.004882814);
Voltage is always around 3.8....
Thanks and have a great day!
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