diff --git a/MyConfig.h b/MyConfig.h
index 5d9fb31..a51c98c 100644
--- a/MyConfig.h
+++ b/MyConfig.h
@@ -46,7 +46,21 @@
  * the flag in your sketch.
  */
 //#define MY_DEBUG
-
+/**
+ * @def MY_DEBUGDEVICE
+ * @brief Define MY_DEBUGDEVICE to redirect debug prints.
+ *
+ * If defined, MY_DEBUGDEVICE replaces MY_SERIALDEVICE for the purpose
+ * of printing debug messages.  This only applies to debugging.
+ *
+ * The intent is to provide the ability to send debugging messages
+ * out a different serial port than what is being used for
+ * communication between nodes or from gateway to controller when
+ * this communication uses a serial interface.  This assumes that
+ * the MY_DEBUGDEVICE serial interface already exists. It can be a
+ * hardware serial device or a software serial device.
+ */
+//#define MY_DEBUGDEVICE
 /**
  * @def MY_DEBUG_OTA
  * @brief Define MY_DEBUG_OTA to redirect debug prints to given node ID
@@ -1861,6 +1875,7 @@
 
 // debug
 #define MY_DEBUG
+#define MY_DEBUGDEVICE
 #define MY_DEBUG_OTA
 #define MY_DEBUG_OTA_DISABLE_ACK
 #define MY_SPECIAL_DEBUG
diff --git a/hal/architecture/AVR/MyHwAVR.cpp b/hal/architecture/AVR/MyHwAVR.cpp
index b862f92..8a3bf22 100644
--- a/hal/architecture/AVR/MyHwAVR.cpp
+++ b/hal/architecture/AVR/MyHwAVR.cpp
@@ -313,17 +313,20 @@ uint16_t hwFreeMem()
 
 void hwDebugPrint(const char *fmt, ... )
 {
+#ifndef MY_DEBUGDEVICE
+#define MY_DEBUGDEVICE MY_SERIALDEVICE
+#endif
 #ifndef MY_DISABLED_SERIAL
 	char fmtBuffer[MY_SERIAL_OUTPUT_SIZE];
 #ifdef MY_GATEWAY_SERIAL
 	// prepend debug message to be handled correctly by controller (C_INTERNAL, I_LOG_MESSAGE)
 	snprintf_P(fmtBuffer, sizeof(fmtBuffer), PSTR("0;255;%" PRIu8 ";0;%" PRIu8 ";%" PRIu32 " "),
 	           C_INTERNAL, I_LOG_MESSAGE, hwMillis());
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 	// prepend timestamp
-	MY_SERIALDEVICE.print(hwMillis());
-	MY_SERIALDEVICE.print(F(" "));
+	MY_DEBUGDEVICE.print(hwMillis());
+	MY_DEBUGDEVICE.print(F(" "));
 #endif
 	va_list args;
 	va_start (args, fmt );
@@ -334,8 +337,8 @@ void hwDebugPrint(const char *fmt, ... )
 	fmtBuffer[sizeof(fmtBuffer) - 1] = '\0';
 #endif
 	va_end (args);
-	MY_SERIALDEVICE.print(fmtBuffer);
-	MY_SERIALDEVICE.flush();
+	MY_DEBUGDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.flush();
 #else
 	(void)fmt;
 #endif
diff --git a/hal/architecture/ESP8266/MyHwESP8266.cpp b/hal/architecture/ESP8266/MyHwESP8266.cpp
index fcce169..4a85707 100644
--- a/hal/architecture/ESP8266/MyHwESP8266.cpp
+++ b/hal/architecture/ESP8266/MyHwESP8266.cpp
@@ -149,17 +149,20 @@ uint16_t hwFreeMem()
 
 void hwDebugPrint(const char *fmt, ... )
 {
+#ifndef MY_DEBUGDEVICE
+#define MY_DEBUGDEVICE MY_SERIALDEVICE
+#endif
 #ifndef MY_DISABLED_SERIAL
 	char fmtBuffer[MY_SERIAL_OUTPUT_SIZE];
 #ifdef MY_GATEWAY_SERIAL
 	// prepend debug message to be handled correctly by controller (C_INTERNAL, I_LOG_MESSAGE)
 	snprintf_P(fmtBuffer, sizeof(fmtBuffer), PSTR("0;255;%" PRIu8 ";0;%" PRIu8 ";%" PRIu32 " "),
 	           C_INTERNAL, I_LOG_MESSAGE, hwMillis());
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 	// prepend timestamp
-	MY_SERIALDEVICE.print(hwMillis());
-	MY_SERIALDEVICE.print(" ");
+	MY_DEBUGDEVICE.print(hwMillis());
+	MY_DEBUGDEVICE.print(" ");
 #endif
 	va_list args;
 	va_start (args, fmt );
@@ -170,8 +173,8 @@ void hwDebugPrint(const char *fmt, ... )
 	fmtBuffer[sizeof(fmtBuffer) - 1] = '\0';
 #endif
 	va_end (args);
-	MY_SERIALDEVICE.print(fmtBuffer);
-	MY_SERIALDEVICE.flush();
+	MY_DEBUGDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.flush();
 #else
 	(void)fmt;
 #endif
diff --git a/hal/architecture/NRF5/MyHwNRF5.cpp b/hal/architecture/NRF5/MyHwNRF5.cpp
index 024c4eb..b67d24c 100644
--- a/hal/architecture/NRF5/MyHwNRF5.cpp
+++ b/hal/architecture/NRF5/MyHwNRF5.cpp
@@ -507,17 +507,20 @@ uint16_t hwFreeMem()
 
 void hwDebugPrint(const char *fmt, ...)
 {
+#ifndef MY_DEBUGDEVICE
+#define MY_DEBUGDEVICE MY_SERIALDEVICE
+#endif
 #ifndef MY_DISABLED_SERIAL
 	char fmtBuffer[MY_SERIAL_OUTPUT_SIZE];
 #ifdef MY_GATEWAY_SERIAL
 	// prepend debug message to be handled correctly by controller (C_INTERNAL, I_LOG_MESSAGE)
 	snprintf(fmtBuffer, sizeof(fmtBuffer), PSTR("0;255;%" PRIu8 ";0;%" PRIu8 ";%" PRIu32 " "),
 	         C_INTERNAL, I_LOG_MESSAGE, hwMillis());
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 	// prepend timestamp
-	MY_SERIALDEVICE.print(hwMillis());
-	MY_SERIALDEVICE.print(F(" "));
+	MY_DEBUGDEVICE.print(hwMillis());
+	MY_DEBUGDEVICE.print(F(" "));
 #endif
 	va_list args;
 	va_start (args, fmt );
@@ -528,8 +531,8 @@ void hwDebugPrint(const char *fmt, ...)
 	fmtBuffer[sizeof(fmtBuffer) - 1] = '\0';
 #endif
 	va_end (args);
-	MY_SERIALDEVICE.print(fmtBuffer);
-	MY_SERIALDEVICE.flush();
+	MY_DEBUGDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.flush();
 #else
 	(void)fmt;
 #endif
diff --git a/hal/architecture/SAMD/MyHwSAMD.cpp b/hal/architecture/SAMD/MyHwSAMD.cpp
index 2533da6..47a14af 100644
--- a/hal/architecture/SAMD/MyHwSAMD.cpp
+++ b/hal/architecture/SAMD/MyHwSAMD.cpp
@@ -181,18 +181,21 @@ uint16_t hwFreeMem()
 
 void hwDebugPrint(const char *fmt, ... )
 {
+#ifndef MY_DEBUGDEVICE
+#define MY_DEBUGDEVICE MY_SERIALDEVICE
+#endif
 #ifndef MY_DISABLED_SERIAL
-	if (MY_SERIALDEVICE) {
+	if (MY_DEBUGDEVICE) {
 		char fmtBuffer[MY_SERIAL_OUTPUT_SIZE];
 #ifdef MY_GATEWAY_SERIAL
 		// prepend debug message to be handled correctly by controller (C_INTERNAL, I_LOG_MESSAGE)
 		snprintf(fmtBuffer, sizeof(fmtBuffer), PSTR("0;255;%" PRIu8 ";0;%" PRIu8 ";%" PRIu32 " "),
 		         C_INTERNAL, I_LOG_MESSAGE, hwMillis());
-		MY_SERIALDEVICE.print(fmtBuffer);
+		MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 		// prepend timestamp
-		MY_SERIALDEVICE.print(hwMillis());
-		MY_SERIALDEVICE.print(" ");
+		MY_DEBUGDEVICE.print(hwMillis());
+		MY_DEBUGDEVICE.print(" ");
 #endif
 		va_list args;
 		va_start (args, fmt );
@@ -203,7 +206,7 @@ void hwDebugPrint(const char *fmt, ... )
 		fmtBuffer[sizeof(fmtBuffer) - 1] = '\0';
 #endif
 		va_end (args);
-		MY_SERIALDEVICE.print(fmtBuffer);
+		MY_DEBUGDEVICE.print(fmtBuffer);
 		//	MY_SERIALDEVICE.flush();
 	}
 #else
diff --git a/hal/architecture/STM32F1/MyHwSTM32F1.cpp b/hal/architecture/STM32F1/MyHwSTM32F1.cpp
index c8a5e54..435d244 100644
--- a/hal/architecture/STM32F1/MyHwSTM32F1.cpp
+++ b/hal/architecture/STM32F1/MyHwSTM32F1.cpp
@@ -170,17 +170,20 @@ uint16_t hwFreeMem()
 
 void hwDebugPrint(const char *fmt, ...)
 {
+#ifndef MY_DEBUGDEVICE
+#define MY_DEBUGDEVICE MY_SERIALDEVICE
+#endif
 #ifndef MY_DISABLED_SERIAL
 	char fmtBuffer[MY_SERIAL_OUTPUT_SIZE];
 #ifdef MY_GATEWAY_SERIAL
 	// prepend debug message to be handled correctly by controller (C_INTERNAL, I_LOG_MESSAGE)
 	snprintf_P(fmtBuffer, sizeof(fmtBuffer), PSTR("0;255;%" PRIu8 ";0;%" PRIu8 ";%" PRIu32 " "),
 	           C_INTERNAL, I_LOG_MESSAGE, hwMillis());
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 	// prepend timestamp
-	MY_SERIALDEVICE.print(hwMillis());
-	MY_SERIALDEVICE.print(" ");
+	MY_DEBUGDEVICE.print(hwMillis());
+	MY_DEBUGDEVICE.print(" ");
 #endif
 	va_list args;
 	va_start(args, fmt);
@@ -191,10 +194,10 @@ void hwDebugPrint(const char *fmt, ...)
 	fmtBuffer[sizeof(fmtBuffer) - 1] = '\0';
 #endif
 	va_end(args);
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 	// Disable flush since current STM32duino implementation performs a reset
 	// instead of an actual flush
-	//MY_SERIALDEVICE.flush();
+	//MY_DEBUGDEVICE.flush();
 #else
 	(void)fmt;
 #endif
diff --git a/hal/architecture/Teensy3/MyHwTeensy3.cpp b/hal/architecture/Teensy3/MyHwTeensy3.cpp
index 6355ce9..1771795 100644
--- a/hal/architecture/Teensy3/MyHwTeensy3.cpp
+++ b/hal/architecture/Teensy3/MyHwTeensy3.cpp
@@ -167,17 +167,20 @@ void hwRandomNumberInit(void)
 
 void hwDebugPrint(const char *fmt, ...)
 {
+#ifndef MY_DEBUGDEVICE
+#define MY_DEBUGDEVICE MY_SERIALDEVICE
+#endif
 #ifndef MY_DISABLED_SERIAL
 	char fmtBuffer[MY_SERIAL_OUTPUT_SIZE];
 #ifdef MY_GATEWAY_SERIAL
 	// prepend debug message to be handled correctly by controller (C_INTERNAL, I_LOG_MESSAGE)
 	snprintf_P(fmtBuffer, sizeof(fmtBuffer), PSTR("0;255;%" PRIu8 ";0;%" PRIu8 ";%" PRIu32 " "),
 	           C_INTERNAL, I_LOG_MESSAGE, hwMillis());
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 	// prepend timestamp
-	MY_SERIALDEVICE.print(hwMillis());
-	MY_SERIALDEVICE.print(F(" "));
+	MY_DEBUGDEVICE.print(hwMillis());
+	MY_DEBUGDEVICE.print(F(" "));
 #endif
 	va_list args;
 	va_start(args, fmt);
@@ -188,7 +191,7 @@ void hwDebugPrint(const char *fmt, ...)
 	fmtBuffer[sizeof(fmtBuffer) - 1] = '\0';
 #endif
 	va_end(args);
-	MY_SERIALDEVICE.print(fmtBuffer);
+	MY_DEBUGDEVICE.print(fmtBuffer);
 #else
 	(void)fmt;
 #endif
diff --git a/keywords.txt b/keywords.txt
index 67468c9..5c87e38 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -56,6 +56,7 @@ MY_PASSIVE_NODE	LITERAL1
 
 # debug
 MY_DEBUG	LITERAL1
+MY_DEBUGDEVICE	LITERAL1
 MY_DEBUG_OTA	LITERAL1
 MY_DEBUG_OTA_DISABLE_ACK  LITERAL1
 MY_SPECIAL_DEBUG	LITERAL1