diff --git a/.settings/language.settings.xml b/.settings/language.settings.xml
index 10c2faa..99332dc 100644
--- a/.settings/language.settings.xml
+++ b/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider-reference id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" ref="shared-provider"/>
 			<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="270953963766663620" 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="-394173477433216802" 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-reference id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" ref="shared-provider"/>
 			<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="222923068767188833" 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="-442204372432691589" 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/usrc/hardware.cpp b/usrc/hardware.cpp
index c002161..2032a75 100644
--- a/usrc/hardware.cpp
+++ b/usrc/hardware.cpp
@@ -131,16 +131,25 @@ void Hardware::initialize(int deviceId) {
   triLight_Y.initAsOutput(PD9, ZGPIO::kMode_nopull, true, false);
   triLight_BEEP.initAsOutput(PD10, ZGPIO::kMode_nopull, true, false);
 
-#if 0
+  m_PreportionalValveHost.initialize(&huart2);
+
+#if 1
   m_dp600PressureSensor2.initialize(&huart3, 2);
   m_dp600PressureSensor3.initialize(&huart3, 3);
   m_dp600PressureSensor4.initialize(&huart3, 4);
-
   OUT_PD14.initAsOutput(PD14, ZGPIO::kMode_nopull, false, true);
   OUT_PD15.initAsOutput(PD15, ZGPIO::kMode_nopull, true, false);
 #endif
 }
 
+void air_compressor_ch_select(int32_t val) {
+  if (val == 2) {  // 内管路
+    OUT_PD15.setState(1);
+  } else if (val == 1) {  // 空气
+    OUT_PD15.setState(0);
+  }
+}
+
 void dumpdp600data(DP600PressureSensor::sensor_data_t *data) {
   ZLOGI(TAG, "value:%d", data->value);
   ZLOGI(TAG, "zero_point:%d", data->zero_point);
@@ -235,15 +244,16 @@ int32_t Hardware::process_rx_packet(from_where_t fromwhere, uint8_t *packet, int
     receipt[0]  = cmdheader->data[0];
     receiptsize = 1;
   }
-
   if ((cmdheader->cmdid == (uint16_t)kcmd_air_compressor_valve1_set) && (cmdheader->subcmdid == 0)) {
     uint32_t val = *(uint32_t *)(&cmdheader->data[0]);
+    ZLOGI(TAG, "kcmd_air_compressor_valve1_set:%d", val);
     OUT_PD14.setState(val != 0);
     matching = true;
   }
 
   if ((cmdheader->cmdid == (uint16_t)kcmd_air_compressor_valve2_set) && (cmdheader->subcmdid == 0)) {
     uint32_t val = *(uint32_t *)(&cmdheader->data[0]);
+    ZLOGI(TAG, "kcmd_air_compressor_valve2_set:%d", val);
     OUT_PD14.setState(val != 0);
     matching = true;
   }
@@ -262,6 +272,7 @@ int32_t Hardware::process_rx_packet(from_where_t fromwhere, uint8_t *packet, int
   if ((cmdheader->cmdid == (uint16_t)kcmd_set_proportional_valve) && (cmdheader->subcmdid == 0)) {
     int32_t para0 = *(int32_t *)(&cmdheader->data[0]);
     int32_t para1 = *(int32_t *)(&cmdheader->data[4]);
+
     if (para0 == 1) {
       matching = true;
       m_PreportionalValveHost.setValvePos(1, para1);
@@ -270,6 +281,11 @@ int32_t Hardware::process_rx_packet(from_where_t fromwhere, uint8_t *packet, int
       m_PreportionalValveHost.setValvePos(2, para1);
     }
   }
+
+  if ((cmdheader->cmdid == (uint16_t)kcmd_air_compressor_ch_select) && (cmdheader->subcmdid == 0)) {
+    int32_t para0 = *(int32_t *)(&cmdheader->data[0]);
+    air_compressor_ch_select(para0);
+  }
   static DP600PressureSensor::sensor_data_t dp600data;
   if ((cmdheader->cmdid == (uint16_t)kcmd_air_compressor_read_pressure) && (cmdheader->subcmdid == 0)) {
     matching = true;