• Well in this case @furuskog probably owns some kind of clone of this moisture sensor, it should work fine with a simple analogRead(PIN). If not working, possible issues could be

    1. the sensor is not correctly wired up
    2. the PIN is not the one which is connected to the sensor
    3. the soil humidity is way too low and the sensor is continuously reading the minimal value
    4. the transistor on the moisture sensor is dead