diff --git a/Core/Src/sts_weight_scale.c b/Core/Src/sts_weight_scale.c
index 8ffd183..bfd89a8 100644
--- a/Core/Src/sts_weight_scale.c
+++ b/Core/Src/sts_weight_scale.c
@@ -21,16 +21,16 @@
 #include "sts_weight_scale.h"
 
 uint32_t HX711_Buffer;
-uint32_t gross_weight;
+volatile uint32_t gross_weight;
 int32_t net_weight;
 uint8_t Flag_Error;
-
+volatile uint32_t last_net_weight=0;
 int sts_weight_scale(void)
 {		
 	HX711_Init();
 	Get_GrossWeight();
 
-	HAL_Delay(2000);
+	HAL_Delay(500);
 
 	Get_GrossWeight();
 	
@@ -38,12 +38,18 @@ int sts_weight_scale(void)
 	while(1)
 	{
 		Get_NetWeight();
-
 		APP_LOG(TS_OFF, VLEVEL_M, "Net Weight = %d  g \r\n", net_weight);
 
+		last_net_weight = net_weight;
+		if (((last_net_weight - net_weight) > 100) && (net_weight > 100))		// re-calibrate
+		{
+			Get_GrossWeight();
+			HAL_Delay(100);
+			Get_GrossWeight();
+			HAL_Delay(2000);
+		}
 		HAL_Delay(2000);
 
-
 	}
 }
 
diff --git a/STM32CubeIDE/.settings/language.settings.xml b/STM32CubeIDE/.settings/language.settings.xml
index 816e149..90666d3 100644
--- a/STM32CubeIDE/.settings/language.settings.xml
+++ b/STM32CubeIDE/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-752586124573436390" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1200016478792897337" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-752586124573436390" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1200016478792897337" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>