diff --git a/Core/Inc/yunhorn_sts_prd_conf.h b/Core/Inc/yunhorn_sts_prd_conf.h
index cb7fe86..2da4613 100644
--- a/Core/Inc/yunhorn_sts_prd_conf.h
+++ b/Core/Inc/yunhorn_sts_prd_conf.h
@@ -241,8 +241,8 @@
 
 
 #define MajorVer									24U
-#define MinorVer									02U
-#define SubMinorVer 								21U
+#define MinorVer									03U
+#define SubMinorVer 								4U
 #define FirmwareVersion								3U
 #define	YUNHORN_STS_MAX_NVM_CFG_SIZE				64U
 #define YUNHORN_STS_AC_CODE_SIZE					20U
diff --git a/STM32CubeIDE/.settings/language.settings.xml b/STM32CubeIDE/.settings/language.settings.xml
index f00ccb2..a3a8531 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="1553454923168292746" 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="-1231826695271025643" 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="1553454923168292746" 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="-1231826695271025643" 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>
diff --git a/TOF/App/app_tof_vl53l0x_range.c b/TOF/App/app_tof_vl53l0x_range.c
index 6777855..99a6f7a 100644
--- a/TOF/App/app_tof_vl53l0x_range.c
+++ b/TOF/App/app_tof_vl53l0x_range.c
@@ -411,7 +411,7 @@ void STS_TOF_VL53L0X_Range_Process(void)
 				sts_tof_distance_data[i] = (int)VL53L0XDevs[i].LeakyRange ==0?STS_MAX_L0_RANGE:(int)VL53L0XDevs[i].LeakyRange;
 		  }
 
-		  HAL_Delay(5);
+		  HAL_Delay(1);
 	  }  // for i < MAX_TOF_COUNT
 	  if (sensor_data_ready != 0) {
 		  APP_LOG(TS_OFF, VLEVEL_L, "\r\n## Measured Range: \r\nTOF #0 = %4u mm, \r\nTOF #1 = %4u mm, \r\nTOF #2 = %4u mm\r\n",