diff --git a/components/zcan_module/huacheng_pressure_sensor.cpp b/components/zcan_module/huacheng_pressure_sensor.cpp
index 6107004..cfeda40 100644
--- a/components/zcan_module/huacheng_pressure_sensor.cpp
+++ b/components/zcan_module/huacheng_pressure_sensor.cpp
@@ -24,6 +24,14 @@ void HuachengPressureSensor::regSubmodule(int id, UART_HandleTypeDef* huart, uin
   m_submodules.push_back(submodule);
 }
 
+void HuachengPressureSensor::regSubmodule(int id, readsensorfn_t readfn) {
+  Submodule* submodule = new Submodule();
+  ZASSERT(submodule != NULL);
+  submodule->id           = id;
+  submodule->readsensorfn = readfn;
+  m_submodules.push_back(submodule);
+}
+
 void HuachengPressureSensor::onRceivePacket(CanPacketRxBuffer* rxbuf, uint8_t* packet, size_t len) {
   Cmdheader_t* cmdheader = (Cmdheader_t*)packet;
   if (cmdheader->cmdid == kcmd_read_huacheng_pressure_sensor && cmdheader->subcmdid == 0) {
@@ -57,7 +65,13 @@ void HuachengPressureSensor::onRceivePacket(CanPacketRxBuffer* rxbuf, uint8_t* p
       uint8_t txbuff[10] = {};
       txbuff[0]          = id;
       DP600PressureSensor::sensor_data_t data;
-      bool                               suc = subm->sensor.readVal(&data);
+
+      bool suc = false;
+      if (subm->readsensorfn) {
+        suc = subm->readsensorfn(&data);
+      } else {
+        suc = subm->sensor.readVal(&data);
+      }
 
       if (suc) {
         txbuff[0] = id;
diff --git a/components/zcan_module/huacheng_pressure_sensor.hpp b/components/zcan_module/huacheng_pressure_sensor.hpp
index bf442f3..072784d 100644
--- a/components/zcan_module/huacheng_pressure_sensor.hpp
+++ b/components/zcan_module/huacheng_pressure_sensor.hpp
@@ -13,12 +13,13 @@ namespace iflytop {
 
 class HuachengPressureSensor : public ZCanRceiverListener {
  public:
-  typedef function<int32_t()> readpresure_t;
+  typedef function<bool(DP600PressureSensor::sensor_data_t* data)> readsensorfn_t;
 
   class Submodule {
    public:
     int                 id;
     DP600PressureSensor sensor;
+    readsensorfn_t      readsensorfn = nullptr;
   };
 
  private:
@@ -33,6 +34,7 @@ class HuachengPressureSensor : public ZCanRceiverListener {
  public:
   void initialize(ZCanReceiver* zcanReceiver);
   void regSubmodule(int id, UART_HandleTypeDef* huart, uint8_t modbusid);
+  void regSubmodule(int id, readsensorfn_t readfn);
 
  public:
   virtual void onRceivePacket(CanPacketRxBuffer* rxbuf, uint8_t* packet, size_t len);