4 Replies Latest reply on Apr 13, 2016 12:25 AM by p.steiner

    Question about analogue sensors on Arduino Breakout & Base Shield

    p.steiner

      Hi all,

       

      I have 3 analogue sensors ( like this one Soil Moisture Sensor Hygrometer Detection Module for Arduino | eBay  ) connected to the ports A0 - A3 on my Base Shield ( Seeed's Grove Starter Kit ).

       

      The sensors have an LED showing a certain humidity level.

       

      My problem now is, that whatever I do, all three sensors react when one of them gets in contact with humidity, but I can only get proper readings from the one connected to A0 if the Base Shield.

       

      Are the A0 - A3 inputs not separated from each other, or is my general understanding of this analogue ports wrong?

       

      Any advice is highly appreciated

       

      Patrick