I am trying to use a capacitive soil sensor(1.5V-0% humidity, 0,8V-100% humidity) with my Siemens LOGO and I was wondering how I would setup the gain/offset of the analog amplifier to convert those readings into useable ones(0-100%).

I tried many different configurations and none seem to work as they always show the minimal set value. Is the range under 1V too small for the LOGO?

Any help on the subject matter would help immensley <3!

WOW, that's awesome, works perfectly!

I want to ask how you came to this exact mathematical formula? I want to understand it better in case some sensors have different detection voltages.

Thank you for the quick reply, I would love to hear from you again!