I have solved it myself. I figured out that changing the sensor type from "leaf wetness" to any other does the trick.

Hi folks,

I'm trying to automate my little chilli pot garden. I wanted to measure soil moisture. So I've managed to connect capacitive soil moisture sensor to esp board and send the data to domoticz which runs on RPi2B+. This results in a reading on a sensor "abc":

abc sensor.PNG

The problem is ...