diff --git a/Messages/BinaryMsg.cpp b/Messages/BinaryMsg.cpp
index 7e8f6d8..0b0b940 100644
--- a/Messages/BinaryMsg.cpp
+++ b/Messages/BinaryMsg.cpp
@@ -31,6 +31,10 @@ unsigned char BinaryMsg::Serialize(char* buffer) {
   if (this->dataLength <= 0)  // in this case, no data is actually sent
     return 0;
 
+#if defined(DEBUG)
+  std::cout << "Send BinaryMsg [" << (int)this->networkId << "/" << (int)this->thingId
+            << "] " << (int)this->dataLength << std::endl;
+#endif
   unsigned char ix = 0;
   buffer[ix++] = this->id;
   buffer[ix++] = this->networkId;
diff --git a/Messages/ThingMsg.cpp b/Messages/ThingMsg.cpp
index c22d58d..932530f 100644
--- a/Messages/ThingMsg.cpp
+++ b/Messages/ThingMsg.cpp
@@ -32,6 +32,10 @@ ThingMsg::ThingMsg(unsigned char networkId, Thing* thing) {
 ThingMsg::~ThingMsg() {}
 
 unsigned char ThingMsg::Serialize(char* buffer) {
+#if defined(DEBUG)
+  std::cout << "Send ThingMsg [" << (int)this->networkId << "/" << (int)this->thingId
+            << "] " << (int)this->thingType << " " << (int)this->parentId << std::endl;
+#endif
   unsigned char ix = 0;
   buffer[ix++] = this->id;
   buffer[ix++] = this->networkId;