Index: firmware/App/Controllers/AirTrap.h
===================================================================
diff -u -re5d1d67106a93a6cd1b5692b586625d715732e2f -r8bd1ae47aa13a843aa8abd6321ddc050deacb4a6
--- firmware/App/Controllers/AirTrap.h	(.../AirTrap.h)	(revision e5d1d67106a93a6cd1b5692b586625d715732e2f)
+++ firmware/App/Controllers/AirTrap.h	(.../AirTrap.h)	(revision 8bd1ae47aa13a843aa8abd6321ddc050deacb4a6)
@@ -1,17 +1,17 @@
 /**************************************************************************
 *
-* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2019-2021 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
-* @file AirTrap.h
+* @file    AirTrap.h
 *
-* @author (last) Sean Nash
-* @date (last) 24-Sep-2020
+* @author  (last)      Quang Nguyen
+* @date    (last)      05-May-2021
 *
-* @author (original) Sean Nash
-* @date (original) 16-Sep-2020
+* @author  (original)  Sean Nash
+* @date    (original)  16-Sep-2020
 *
 ***************************************************************************/
 
@@ -48,6 +48,13 @@
     NUM_OF_AIR_TRAP_LEVELS                  ///< Number of air trap level sensor levels
 } AIR_TRAP_LEVELS_T;
 
+/// Payload record structure for air trap data broadcast message
+typedef struct
+{
+    U32 lowerLevel;                         ///< Lower air trap level sensor state
+    U32 upperLevel;                         ///< Upper air trap level sensor state
+} AIR_TRAP_PAYLOAD_T;
+
 // ********** public function prototypes **********
 
 void initAirTrap( void );
@@ -58,7 +65,7 @@
 
 void startAirTrapControl( void );
 void endAirTrapControl( void );
-BOOL isAirTrapControlling( void );
+BOOL isAirTrapControlling( void );
 
 AIR_TRAP_LEVELS_T getAirTrapLevel( AIR_TRAP_LEVEL_SENSORS_T sensor );