diff --git a/src/com.cpp b/src/com.cpp
index 6ba7d3e..3afec3e 100644
--- a/src/com.cpp
+++ b/src/com.cpp
@@ -19,7 +19,6 @@ void T_com::writeToSerial(const QByteArray &data, uint16_t sendLength)
     sendLen=sendLength;
     if (CatSerial->isOpen())
     {
-        qCritical() << "sending..." << sendBuffer;
         CatSerial->write(sendBuffer);
     } else
         qDebug() << "error sending, port is not open";