Index: firmware/App/Controllers/Pressures.c
===================================================================
diff -u -r256d5cb05f1ef09e19e2f2733a111f600c73a7ee -r2e21405574597474db0ebae86cdd7fa2d517f71c
--- firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 256d5cb05f1ef09e19e2f2733a111f600c73a7ee)
+++ firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 2e21405574597474db0ebae86cdd7fa2d517f71c)
@@ -39,7 +39,7 @@
 
 #define PUMP_PRESSURE_ZERO                          777                                             ///< ADC counts equivalent to 0 PSI for pump in/out pressure sensors.
 #define PUMP_PRESSURE_PSIA_PER_COUNT                0.06434F                                        ///< PSIA per ADC count conversion factor for pump in/out pressure sensors.
-#define PUMP_PRESSURE_PSIA_TO_PSI_OFFSET            14.7F                                           ///< Subtract this offset to convert PSIA to PSI.  TODO - use barometric sensor when available.
+#define PUMP_PRESSURE_PSIA_TO_PSI_OFFSET            14.7F                                           ///< Subtract this offset to convert PSIA to PSI.
 #define ONE_BAR_TO_PSI_CONVERSION                   14.5F                                           ///< 1 bar to PSI conversion.
 #define ONE_BAR_TO_MILLI_BAR                        1000                                            ///< 1 bar to milli bar conversion.
 #define COUNTS_TO_MILLI_BAR                         100                                             ///< Counts to milli bar conversion.
@@ -375,11 +375,13 @@
     // publish pressure/occlusion data on interval
     if ( ++pressuresDataPublicationTimerCounter >= getU32OverrideValue( &pressuresDataPublishInterval ) )
     {
-        PRESSURES_DATA_T data;
+        PRESSURES_DATA_T data;
+
         data.roPumpInletPressure     = getMeasuredDGPressure( PRESSURE_SENSOR_RO_PUMP_INLET );
         data.roPumpOutletPressure    = getMeasuredDGPressure( PRESSURE_SENSOR_RO_PUMP_OUTLET );
         data.drainPumpInletPressure  = getMeasuredDGPressure( PRESSURE_SENSOR_DRAIN_PUMP_INLET );
-        data.drainPumpOutletPressure = getMeasuredDGPressure( PRESSURE_SENSOR_DRAIN_PUMP_OUTLET );
+        data.drainPumpOutletPressure = getMeasuredDGPressure( PRESSURE_SENSOR_DRAIN_PUMP_OUTLET );
+        data.barometricPressure      = getMeasuredDGPressure( PRESSURE_SENSOR_BAROMETRIC );
 
         broadcastData( MSG_ID_DG_PRESSURES_DATA, COMM_BUFFER_OUT_CAN_DG_BROADCAST, (U08*)&data, sizeof( PRESSURES_DATA_T ) );
         pressuresDataPublicationTimerCounter = 0;