diff --git a/RBcore/include/msg_center.h b/RBcore/include/msg_center.h
index a07e573..9ca6649 100644
--- a/RBcore/include/msg_center.h
+++ b/RBcore/include/msg_center.h
@@ -44,14 +44,11 @@ extern "C"{
  *      data structures                         *
  *----------------------------------------------*/
 
-// 消息ID定义（各模块自己的命令字）
-typedef uint32_t MsgID_t;
-
 // 消息结构
 typedef struct {
     uint32_t    m_uiSrcModule;                          // 源模块ID
     uint32_t    m_uiDstModule;                          // 目标模块ID
-    MsgID_t     m_uiMsgID;                              // 消息ID（命令字）
+    uint32_t    m_uiMsgID;                              // 消息ID（命令字）
     uint32_t    m_uiDataLen;                            // 数据长度
     uint8_t     m_aucData[MSG_CENTER_MAX_DATA_SIZE];    // 消息数据
 } Msg_t;
@@ -109,7 +106,7 @@ int MsgCenter_Send(const Msg_t *pstMsg);
  * @param uiDataLen 数据长度
  * @return 0成功，非0失败
  */
-int MsgCenter_SendTo(const char *pszDstName, MsgID_t uiMsgID, const void *pData, uint32_t uiDataLen);
+int MsgCenter_SendTo(const char *pszDstName, uint32_t uiMsgID, const void *pData, uint32_t uiDataLen);
 
 /**
  * @brief 处理当前模块的消息（在模块线程中调用）
diff --git a/RBcore/msg_center.c b/RBcore/msg_center.c
index 64dc21f..aca5068 100644
--- a/RBcore/msg_center.c
+++ b/RBcore/msg_center.c
@@ -217,13 +217,13 @@ int MsgCenter_Send(const Msg_t *pstMsg)
  函 数 名  : MsgCenter_SendTo
  功能描述  : 发送消息给指定模块（便捷函数）
  输入参数  : const char *pszDstName 目标模块名称
-             MsgID_t uiMsgID 消息ID
+             uint32_t uiMsgID 消息ID
              const void *pData 数据指针（可为NULL）
              uint32_t uiDataLen 数据长度
  输出参数  : 无
  返 回 值  : int 0成功，非0失败
 *****************************************************************************/
-int MsgCenter_SendTo(const char *pszDstName, MsgID_t uiMsgID, const void *pData, uint32_t uiDataLen)
+int MsgCenter_SendTo(const char *pszDstName, uint32_t uiMsgID, const void *pData, uint32_t uiDataLen)
 {
     if (NULL == pszDstName)
     {
diff --git a/bspMCU/l_stm32.c b/bspMCU/l_stm32.c
index 07a972d..230cac7 100644
--- a/bspMCU/l_stm32.c
+++ b/bspMCU/l_stm32.c
@@ -418,6 +418,34 @@ static int l_lwip(lua_State *L)
 }
 #endif
 
+static int l_sendto(lua_State *L)
+{
+	int MsgCenter_SendTo(const char *pszDstName, uint32_t uiMsgID, const void *pData, uint32_t uiDataLen);
+    const char *pszDstName = luaL_checkstring(L, 1);
+    uint32_t uiMsgID = (uint32_t)luaL_checkinteger(L, 2);
+    const void *pData = NULL;
+    uint32_t uiDataLen = 0;
+
+    if (lua_istable(L, 3))
+    {
+        uiDataLen = (uint32_t)lua_rawlen(L, 3);
+        if (uiDataLen > 32)
+            return luaL_error(L, "data too long (max 32)");
+        static uint8_t buf[32];
+        for (uint32_t i = 0; i < uiDataLen; i++)
+        {
+            lua_rawgeti(L, 3, i + 1);
+            buf[i] = (uint8_t)luaL_checkinteger(L, -1);
+            lua_pop(L, 1);
+        }
+        pData = buf;
+    }
+
+    int ret = MsgCenter_SendTo(pszDstName, uiMsgID, pData, uiDataLen);
+    lua_pushinteger(L, ret);
+    return 1;
+}
+
 #ifdef USE_ONCHIP_FLASH
 
 #define LUA_START_ADDR 0x08020000UL
@@ -731,6 +759,10 @@ int luaopen_stm32(lua_State *L)
     lua_pushcfunction(L, l_lwip);
     lua_setglobal(L, "lwip"); // lwip = l_lwip
 #endif
+
+    lua_pushcfunction(L, l_sendto);
+    lua_setglobal(L, "sendto"); // sendto = l_sendto
+
     return 1;
 }