Index: firmware/App/Services/PIControllers.h
===================================================================
diff -u -rdaf8d5b60c753becab80cbaf164aac0e49d533a2 -rab304e2ca6e3e40ed8cb12650e9855ae0b9649d8
--- firmware/App/Services/PIControllers.h	(.../PIControllers.h)	(revision daf8d5b60c753becab80cbaf164aac0e49d533a2)
+++ firmware/App/Services/PIControllers.h	(.../PIControllers.h)	(revision ab304e2ca6e3e40ed8cb12650e9855ae0b9649d8)
@@ -7,8 +7,8 @@
 *
 * @file PIControllers.h
 *
-* @author (last) Sean
-* @date (last) 22-Apr-2020
+* @author (last) Quang Nguyen
+* @date (last) 24-Aug-2020
 *
 * @author (original) Sean
 * @date (original) 04-Feb-2020
@@ -22,15 +22,15 @@
 
 /**
  *  @defgroup PIControllers PIControllers
- *  @brief PIControllers service module.  Provides PI controllers for various actuators..
+ *  @brief PIControllers service module.  Provides PI controllers for various actuators.
  *
  *  @addtogroup PIControllers
  *  @{
  */
 
 // ********** public definitions **********
 
-/// Enumeration of PI controllers
+/// Enumeration of PI controllers.
 typedef enum ControllerList
 {
     PI_CONTROLLER_ID_RO_PUMP = 0,                   ///< RO Pump controller.
@@ -41,18 +41,18 @@
     NUM_OF_PI_CONTROLLERS_IDS                       ///< Number of PI controllers.
 } PI_CONTROLLER_ID_T;
 
-/// Enumeration of PI controller signals
+/// Enumeration of PI controller signals.
 typedef enum ControllerSignals
 {
-    CONTROLLER_SIGNAL_REFERENCE = 0,                ///< Reference value.
-    CONTROLLER_SIGNAL_MEASURED,                     ///< Measured value.
-    CONTROLLER_SIGNAL_ERROR,                        ///< Error value.
-    CONTROLLER_SIGNAL_ERROR_SUM,                    ///< Error sum before anti-windup.
-    CONTROLLER_SIGNAL_ERROR_SUM_AFTER_WINDUP,       ///< Error sum after anti-windup.
-    CONTROLLER_SIGNAL_PROPORTIONAL_OUTPUT,          ///< P portion of controller output signal.
-    CONTROLLER_SIGNAL_INTEGRAL_OUTPUT,              ///< I portion of controller output signal.
-    CONTROLLER_SIGNAL_CONTROL,                      ///< Controller output signal.
-    NUM_OF_CONTROLLER_SIGNAL                        ///< Number of PI controller signals.
+    CONTROLLER_SIGNAL_REFERENCE = 0,                ///< Reference value
+    CONTROLLER_SIGNAL_MEASURED,                     ///< Measured value
+    CONTROLLER_SIGNAL_ERROR,                        ///< Error value
+    CONTROLLER_SIGNAL_ERROR_SUM,                    ///< Error sum before anti-windup
+    CONTROLLER_SIGNAL_ERROR_SUM_AFTER_WINDUP,       ///< Error sum after anti-windup
+    CONTROLLER_SIGNAL_PROPORTIONAL_OUTPUT,          ///< P portion of controller output signal
+    CONTROLLER_SIGNAL_INTEGRAL_OUTPUT,              ///< I portion of controller output signal
+    CONTROLLER_SIGNAL_CONTROL,                      ///< Controller output signal
+    NUM_OF_CONTROLLER_SIGNAL                        ///< Number of PI controller signals
 } PI_CONTROLLER_SIGNALS_ID;
 
 // ********** public function prototypes **********
@@ -66,4 +66,3 @@
 /**@}*/
 
 #endif
-