diff --git a/src/arduino_platform.cpp b/src/arduino_platform.cpp
index 62ab8a9..d23d4c2 100644
--- a/src/arduino_platform.cpp
+++ b/src/arduino_platform.cpp
@@ -103,6 +103,11 @@ size_t ArduinoPlatform::readBytesUart(uint8_t *buffer, size_t length)
     return length;
 }
 
+void ArduinoPlatform::flushUart()
+{
+    return _knxSerial->flush();
+}
+
 #ifndef KNX_NO_SPI
 void ArduinoPlatform::setupSpi()
 {
diff --git a/src/arduino_platform.h b/src/arduino_platform.h
index 29d846e..9118920 100644
--- a/src/arduino_platform.h
+++ b/src/arduino_platform.h
@@ -25,6 +25,7 @@ class ArduinoPlatform : public Platform
     virtual size_t writeUart(const uint8_t* buffer, size_t size);
     virtual int readUart();
     virtual size_t readBytesUart(uint8_t* buffer, size_t length);
+    virtual void flushUart();
 
     //spi
 #ifndef KNX_NO_SPI
diff --git a/src/knx/platform.cpp b/src/knx/platform.cpp
index 545e3ad..2b398ae 100644
--- a/src/knx/platform.cpp
+++ b/src/knx/platform.cpp
@@ -57,6 +57,14 @@ void Platform::closeUart()
 void Platform::setupUart()
 {}
 
+bool Platform::overflowUart()
+{
+    return false;
+}
+
+void Platform::flushUart()
+{}
+
 uint32_t Platform::currentIpAddress()
 {
     return 0x01020304;
diff --git a/src/knx/platform.h b/src/knx/platform.h
index b9e4c5c..ddb1a67 100644
--- a/src/knx/platform.h
+++ b/src/knx/platform.h
@@ -62,6 +62,8 @@ class Platform
     virtual size_t writeUart(const uint8_t* buffer, size_t size);
     virtual int readUart();
     virtual size_t readBytesUart(uint8_t* buffer, size_t length);
+    virtual bool overflowUart();
+    virtual void flushUart();
 
     // SPI
     virtual void setupSpi();
diff --git a/src/rp2040_arduino_platform.cpp b/src/rp2040_arduino_platform.cpp
index ddc89cb..dce06e8 100644
--- a/src/rp2040_arduino_platform.cpp
+++ b/src/rp2040_arduino_platform.cpp
@@ -85,6 +85,11 @@ void RP2040ArduinoPlatform::knxUartPins(pin_size_t rxPin, pin_size_t txPin)
     _txPin = txPin;
 }
 
+bool RP2040ArduinoPlatform::overflowUart() {
+    SerialUART* serial = dynamic_cast<SerialUART*>(_knxSerial);
+    return serial->overflow();
+}
+
 void RP2040ArduinoPlatform::setupUart()
 {
     SerialUART* serial = dynamic_cast<SerialUART*>(_knxSerial);
diff --git a/src/rp2040_arduino_platform.h b/src/rp2040_arduino_platform.h
index b4e7f8d..4d71862 100644
--- a/src/rp2040_arduino_platform.h
+++ b/src/rp2040_arduino_platform.h
@@ -68,6 +68,8 @@ public:
     // uart
     void knxUartPins(pin_size_t rxPin, pin_size_t txPin);
     void setupUart();
+    virtual bool overflowUart();
+
 
     // unique serial number
     uint32_t uniqueSerialNumber() override;