diff --git a/pid/pidcontroller.hpp b/pid/pidcontroller.hpp
index 9ed3be2..3d38c2a 100644
--- a/pid/pidcontroller.hpp
+++ b/pid/pidcontroller.hpp
@@ -49,6 +49,11 @@
         return &_pid_info;
     }
 
+    double getLastInput(void)
+    {
+        return lastInput;
+    }
+
   protected:
     ZoneInterface* _owner;
 
@@ -57,4 +62,5 @@
     ec::pid_info_t _pid_info;
     double _setpoint;
     std::string _id;
+    double lastInput = std::numeric_limits<double>::quiet_NaN();
 };