diff --git a/src/iflytop/components/zcanreceiver/zcanhost.cpp b/src/iflytop/components/zcanreceiver/zcanhost.cpp
index c9a2a52..f682711 100644
--- a/src/iflytop/components/zcanreceiver/zcanhost.cpp
+++ b/src/iflytop/components/zcanreceiver/zcanhost.cpp
@@ -65,6 +65,13 @@ void ZCanHost::initialize(string can_if_name, int baudrate, bool enablLoopback)
     retval = fmt::format("ACK:{}", v);
     return true;
   };
+  m_cmdMap["sleep_ms"] = [this](int argc, char** argv, string& retval) {
+    CHECK_ARGC_NUM(1);
+    uint8_t ms = atoi(argv[1]);
+    logger->info("sleep_ms:{}", ms);
+    std::this_thread::sleep_for(std::chrono::milliseconds(ms));
+    return true;
+  };
 }
 
 static void prase_cmd(char* input, int inputlen, int& argc, char* argv[]) {