Unfortunately, most soil moisture sensors used in our Arduino, ESP8266, or ESP32 projects destroy themselves after a short while. We need a better solution.
Today we will test different sensors, and I will show you how they work and why most sensors from China destroy themselves. And, of course, we will find a solution to the problem.

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Links:
Good (capacitive) moisture sensors: https://s.click.aliexpress.com/e/_DlK... or https://amzn.to/3YDFBUu (use 5V for power)
Another type: https://s.click.aliexpress.com/e/_DdJ...
Good writeup for the capacitive sensors: https://thecavepearlproject.org/2020/...

Check this video before you order your sensor:    • Capacitive Soil Moisture Sensors don'...  

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