diff --git a/components/cmdscheduler/cmd_scheduler_v2.cpp b/components/cmdscheduler/cmd_scheduler_v2.cpp
index 0ec46e7..e969276 100644
--- a/components/cmdscheduler/cmd_scheduler_v2.cpp
+++ b/components/cmdscheduler/cmd_scheduler_v2.cpp
@@ -45,6 +45,7 @@ void CmdSchedulerV2::initialize(ZIUartReceiver* receiver) {
   // m_uart->initialize(&cfg);
   m_uart->startRx([this](uint8_t* data, size_t len) {
     if (m_dataisready) return;
+    if(len == 0) return;
     memcpy(rxbuf, data, len);
     rxbuf[len]    = '\0';
     m_rxsize      = len;
@@ -62,6 +63,7 @@ void CmdSchedulerV2::schedule() {
   if (!m_dataisready) {
     return;
   }
+  ZLOGI(TAG, "----------------------------doscript:begin------------------------");
   for (int i = 0; i < m_rxsize; i++) {
     if (rxbuf[i] == '\r' || rxbuf[i] == '\n') {
       rxbuf[i] = '\0';
@@ -99,15 +101,12 @@ void CmdSchedulerV2::schedule() {
 void CmdSchedulerV2::dumpack(ICmdParserACK* ack) {
   if (ack->ecode == 0) {
     if (ack->acktype == ack->kAckType_none) {
-      ZLOGI(TAG, "\tok");
     } else if (ack->acktype == ack->kAckType_int32) {
-      ZLOGI(TAG, "\tok-->");
       for (int i = 0; i < ack->getAckInt32Num(); i++) {
-        // printf(" %d", (int)ack->getAckInt32Val(i));
-        ZLOGI(TAG, "\t\t%d", (int)ack->getAckInt32Val(i));
+        ZLOGI(TAG, "\tACK[%d] \t\t%d", i, (int)ack->getAckInt32Val(i));
       }
     } else if (ack->acktype == ack->kAckType_buf) {
-      ZLOGI(TAG, "\tok-->");
+      ZLOGI_NOT_END_LINE(TAG, "\t ACK_BUF:");
       for (int i = 0; i < ack->rawlen; i++) {
         printf(" %02x", ack->rawdata[i]);
       }
diff --git a/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.cpp b/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.cpp
index 13019e1..52a18db 100644
--- a/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.cpp
+++ b/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.cpp
@@ -232,7 +232,15 @@ void MicroComputerModuleDeviceScriptCmderPaser::initialize(ICmdParser* cancmder,
   m_deviceManager = deviceManager;
 
   cancmder->regCMD("dumpreg", "dumpreg (mid)", 1, [this](int32_t paramN, const char* paraV[], ICmdParserACK* ack) { do_dumpreg(paramN, paraV, ack); });
+  cancmder->regCMD("scanmodule", "()", 0, [this](int32_t paramN, const char* paraV[], ICmdParserACK* ack) { do_scan_module(paramN, paraV, ack); });
   deviceManager->regOnRegValChangeEvent([this](int32_t moduleid, int32_t event_id, int32_t eventval) {  //
     ZLOGI(TAG, "onRegValChangeEvent(%d,%d,%d)", moduleid, event_id, eventval);
   });
 }
+
+void MicroComputerModuleDeviceScriptCmderPaser::do_scan_module(int32_t paramN, const char* paraV[], ICmdParserACK* ack) {
+  m_deviceManager->for_each_module([this](int32_t id) {  //
+    int32_t ecode = m_deviceManager->module_ping(id);
+    ZLOGI(TAG, "module %d : %s", id, ecode == 0 ? "online" : "offline");
+  });
+}
diff --git a/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.hpp b/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.hpp
index c9dcf96..bc6a0b8 100644
--- a/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.hpp
+++ b/components/zprotocol_helper/micro_computer_module_device_script_cmder_paser.hpp
@@ -15,6 +15,8 @@ class MicroComputerModuleDeviceScriptCmderPaser : public ZModuleDeviceScriptCmde
 
   void do_dumpstate(int32_t paramN, const char* paraV[], ICmdParserACK* ack) {}
   void do_dumpstate(int32_t moduleId) {}
+
+  void do_scan_module(int32_t paramN, const char* paraV[], ICmdParserACK* ack);
 };
 
 }  // namespace iflytop
diff --git a/components/zprotocols/zcancmder_v2 b/components/zprotocols/zcancmder_v2
index b17e21e..b7ad588 160000
--- a/components/zprotocols/zcancmder_v2
+++ b/components/zprotocols/zcancmder_v2
@@ -1 +1 @@
-Subproject commit b17e21efac1f2625c635ba947c97641927e3ec38
+Subproject commit b7ad588d0936f7b5800e9a3628e8d88d9a9a1489
diff --git a/os/zoslogger.hpp b/os/zoslogger.hpp
index a0e9923..8019ecb 100644
--- a/os/zoslogger.hpp
+++ b/os/zoslogger.hpp
@@ -9,35 +9,40 @@ extern iflytop::zmutex glog_mutex;
 extern "C" {
 extern bool g_enable_log;
 
-#define ZLOG_RELEASE(TAG, fmt, ...)         \
-  if (g_enable_log) {                       \
+#define ZLOG_RELEASE(TAG, fmt, ...)          \
+  if (g_enable_log) {                        \
     zos_log(TAG "" fmt "\n", ##__VA_ARGS__); \
   }
-#define ZLOGI(TAG, fmt, ...)                                                             \
-  if (g_enable_log) {                                                                    \
+#define ZLOGI(TAG, fmt, ...)                                                              \
+  if (g_enable_log) {                                                                     \
     zos_log("%08lu INFO [%-8s] " fmt "\n", zchip_clock_get_ticket(), TAG, ##__VA_ARGS__); \
   }
-#define ZLOGD(TAG, fmt, ...)                                                             \
-  if (g_enable_log) {                                                                    \
+#define ZLOGI_NOT_END_LINE(TAG, fmt, ...)                                                 \
+  if (g_enable_log) {                                                                     \
+    zos_log("%08lu INFO [%-8s] " fmt "", zchip_clock_get_ticket(), TAG, ##__VA_ARGS__); \
+  }
+
+#define ZLOGD(TAG, fmt, ...)                                                              \
+  if (g_enable_log) {                                                                     \
     zos_log("%08lu DEBU [%-8s] " fmt "\n", zchip_clock_get_ticket(), TAG, ##__VA_ARGS__); \
   }
-#define ZLOGE(TAG, fmt, ...)                                                             \
-  if (g_enable_log) {                                                                    \
+#define ZLOGE(TAG, fmt, ...)                                                              \
+  if (g_enable_log) {                                                                     \
     zos_log("%08lu ERRO [%-8s] " fmt "\n", zchip_clock_get_ticket(), TAG, ##__VA_ARGS__); \
   }
 
-#define ZLOGW(TAG, fmt, ...)                                                             \
-  if (g_enable_log) {                                                                    \
+#define ZLOGW(TAG, fmt, ...)                                                              \
+  if (g_enable_log) {                                                                     \
     zos_log("%08lu WARN [%-8s] " fmt "\n", zchip_clock_get_ticket(), TAG, ##__VA_ARGS__); \
   }
 
-#define ZASSERT(cond)                                             \
-  if (!(cond)) {                                                  \
-    while (1) {                                                   \
+#define ZASSERT(cond)                                              \
+  if (!(cond)) {                                                   \
+    while (1) {                                                    \
       zos_log("ASSERT: %s  [%s:%d]\n", #cond, __FILE__, __LINE__); \
-      zchip_clock_early_delayus(1000 * 1000);                     \
-    }                                                             \
+      zchip_clock_early_delayus(1000 * 1000);                      \
+    }                                                              \
   }
-void zos_log(const char* fmt, ...)  ;
+void zos_log(const char* fmt, ...);
 void zos_loggger_init();
 }