Index: firmware/App/Controllers/DryBiCart.h
===================================================================
diff -u -rbdee7caad13de484d50de4089497725c44a43c74 -rfd897db8177752330ad08d877e0a13620513dbdc
--- firmware/App/Controllers/DryBiCart.h	(.../DryBiCart.h)	(revision bdee7caad13de484d50de4089497725c44a43c74)
+++ firmware/App/Controllers/DryBiCart.h	(.../DryBiCart.h)	(revision fd897db8177752330ad08d877e0a13620513dbdc)
@@ -7,17 +7,18 @@
 *
 * @file    DryBiCart.h
 *
-* @author  (original)  Sameer poyil
-* @date    (original)  10-Nov-2025
+* @author  (last)      Sameer Kalliadan Poyil
+* @date    (last)      14-Apr-2026
 *
-* @author  (original)  Sameer poyil
-* @date    (original)  10-Nov-2025
+* @author  (original)  Vinayakam Mani
+* @date    (original)  19-Nov-2025
 *
 ***************************************************************************/
 
 #ifndef __DRY_BICART_H__
 #define __DRY_BICART_H__
 
+#include "PIControllers.h"
 #include "DDCommon.h"
 #include "DDDefs.h"
 
@@ -32,6 +33,7 @@
 
 // ********** public definitions **********
 
+#pragma pack(push, 1)
 /// dry bicart data structure
 typedef struct
 {
@@ -47,8 +49,24 @@
     U32 dryBiCartCurrentFillTime;                                       ///< Dry bicart current fill duration in milli second
     U32 dryBiCartType;                                                  ///< Dry bicart type (small-0/large-1)
     U32 dryBiCartDrainTimePeriod;                                       ///< Dry bicart drain time based on catridge type (small/large)
+
+    // TODO: remove after closed loops stabilized
+    PI_CONTROLLER_SIGNALS_DATA dryBiCartBicarbDosingControl;            ///< Dry bicart bicarb dosing closed loop control signals data
+    PI_CONTROLLER_SIGNALS_DATA dryBiCartAcidDosingControl;              ///< Dry bicart acid dosing closed loop control signals data
+
+    F32 dryBiCartAcidMixVolume;                                        ///< Dry bicart acid dose volume
+    F32 dryBiCartBicarbMixVolume;                                      ///< Dry bicart bicarb dose volume
+
+    F32 dryBiCartBicarbDosingKPgain;                                    ///< Dry bicart bicarb dosing control kp gain
+    F32 dryBiCartBicarbDosingKIgain;                                    ///< Dry bicart bicarb dosing control ki gain
+
+    F32 dryBiCartAcidDosingKPgain;                                      ///< Dry bicart acid dosing control kp gain
+    F32 dryBiCartAcidDosingKIgain;                                      ///< Dry bicart acid dosing control ki gain
+
  } DRY_BICART_DATA_T;
 
+#pragma pack(pop)
+
 // ********** public function prototypes **********
 
 void initDryBiCart( void );
@@ -61,6 +79,15 @@
 BOOL setBicartFillRequested( void );
 BOOL setBicartDrainRequested( void );
 
+F32 getDialysateTargetConductivity( void );
+F32 getDialysateDeltaConductivity( void );
+
+F32 getBicarbTargetConductivity( void );
+F32 getBicarbDeltaConductivity( void );
+
+F32 getBicarbMixVol( void );
+F32 getAcidMixVol( void );
+
 DRY_BICART_FILL_EXEC_STATE_T getCurrentDryBiCartFillExecState( void );
  
 BOOL testDryBiCartDataPublishIntervalOverride( MESSAGE_T *message );
@@ -70,6 +97,24 @@
 BOOL testDryBiCartDrainRequestOverride( MESSAGE_T *message );
 BOOL testDryBiCartTypeOverride( MESSAGE_T *message );
 
+BOOL testDryBiCartAcidDoseVolumeOverride( MESSAGE_T *message );
+BOOL testDryBiCartBicarbDoseVolumeOverride( MESSAGE_T *message );
+
+BOOL testDryBiCartBicarbMixVolControlKpGainOverride( MESSAGE_T *message );
+BOOL testDryBiCartBicarbMixVolControlKiGainOverride( MESSAGE_T *message );
+
+BOOL testDryBiCartAcidMixVolControlKpGainOverride( MESSAGE_T *message );
+BOOL testDryBiCartAcidMixVolControlKiGainOverride( MESSAGE_T *message );
+
+BOOL testDryBiCartTargetConductivityOverride( MESSAGE_T *message );
+BOOL testDryBiCartDeltaConductivityOverride( MESSAGE_T *message );
+
+BOOL testDryBiCartAcidBicarbDeltaConductivityOverride( MESSAGE_T *message );
+BOOL testDryBiCartAcidBicarbTargetConductivityOverride( MESSAGE_T *message );
+
+BOOL testDryBiCartUpperCartPressureOverride( MESSAGE_T *message );
+BOOL testDryBiCartLowerCartPressureOverride( MESSAGE_T *message );
+
 /**@}*/
 
 #endif