--- a/brewco/pid.c	Sun Dec 06 12:34:44 2015 +0100
+++ b/brewco/pid.c	Sun Dec 06 14:29:37 2015 +0100
@@ -40,7 +40,7 @@
     pid->inAuto = FALSE;
     PID_setOutputLimits(pid, 0, 255);
     pid->SampleTime = 100;
-    PID_setControllerDirection(pid, ControllerDirection);
+    PID_setDirection(pid, ControllerDirection);
     PID_setTunings(pid, Kp, Ki, Kd);
     pid->lastTime = millis() - pid->SampleTime;
 }
@@ -136,7 +136,7 @@
  * know which one, because otherwise we may increase the output when we should
  * be decreasing.  This is called from PID_init().
  */
-void PID_setControllerDirection(pid_var *pid, int Direction)
+void PID_setDirection(pid_var *pid, int Direction)
 {
     if (pid->inAuto && Direction != pid->Direction) {
 	pid->Kp = (0 - pid->Kp);
@@ -204,6 +204,13 @@
 
 
 
+int PID_getSampleTime(pid_var *pid)
+{
+    return pid->SampleTime;
+}
+
+
+
 /*
  * This, as they say, is where the magic happens.  this function should be called
  * every time "void loop()" executes.  the function will decide for itself whether a new