diff --git a/library.properties b/library.properties
index 56c10d9..8e15f7e 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=serialIO
-version=0.2.3
+version=0.2.4
 category=Communication
 sentence=RC protocol
 paragraph=A common library that can decode multiple RC protocols
diff --git a/src/crsf/crsf.cpp b/src/crsf/crsf.cpp
index 1daa0af..9a5ed2f 100644
--- a/src/crsf/crsf.cpp
+++ b/src/crsf/crsf.cpp
@@ -12,9 +12,11 @@ void crsf::begin() {
 #elif defined(ARDUINO_ARCH_RP2040)
   SerialUART *serialPort = (SerialUART *)_rxPort;
   serialPort->setPinout(_txPin, _rxPin);
+  serialPort->setInvertRX(_inverted);
+  serialPort->setInvertTX(_inverted);
   serialPort->begin(CRSF_BAUDRATE, SERIAL_8N1);
 #else
-#warning #warning "Unsupported hardware platform."
+#warning "Unsupported hardware platform."
 #endif
 }
 
diff --git a/src/fport/fport.cpp b/src/fport/fport.cpp
index e541978..dcbe24b 100644
--- a/src/fport/fport.cpp
+++ b/src/fport/fport.cpp
@@ -18,6 +18,8 @@ void fport::begin() {
 #elif defined(ARDUINO_ARCH_RP2040)
   SerialUART *serialPort = (SerialUART *)_rxPort;
   serialPort->setPinout(_txPin, _rxPin);
+  serialPort->setInvertRX(_inverted);
+  serialPort->setInvertTX(_inverted);
   serialPort->begin(FPORT_BAUDRATE, SERIAL_8N1);
 #else
 #warning "Unsupported hardware platform."
diff --git a/src/ibus/ibus.cpp b/src/ibus/ibus.cpp
index f5f8afe..1790f2a 100644
--- a/src/ibus/ibus.cpp
+++ b/src/ibus/ibus.cpp
@@ -15,9 +15,11 @@ void ibus::begin() {
 #elif defined(ARDUINO_ARCH_RP2040)
   SerialUART *serialPort = (SerialUART *)_rxPort;
   serialPort->setPinout(_txPin, _rxPin);
+  serialPort->setInvertRX(_inverted);
+  serialPort->setInvertTX(_inverted);
   serialPort->begin(IBUS_BAUDRATE, SERIAL_8N1);
 #else
-#warning #warning "Unsupported hardware platform."
+#warning "Unsupported hardware platform."
 #endif
 }
 
@@ -26,7 +28,7 @@ void ibus::processIncoming() {
     _rxData[IBUS_MAX_PACKET_SIZE - 1] = _rxPort->read();
     if (_rxData[0] == IBUS_HEADER1 && _rxData[1] == IBUS_HEADER2) {
       if (checkSum()) {
-        _channelData.header = (_rxData[2] << 8) | _rxData[0];
+        _channelData.header = (_rxData[1] << 8) | _rxData[0];
         _channelData.channel1 = (_rxData[3] << 8) | _rxData[2];
         _channelData.channel2 = (_rxData[5] << 8) | _rxData[4];
         _channelData.channel3 = (_rxData[7] << 8) | _rxData[6];
diff --git a/src/sbus/sbus.cpp b/src/sbus/sbus.cpp
index eafc2f4..4b874c1 100644
--- a/src/sbus/sbus.cpp
+++ b/src/sbus/sbus.cpp
@@ -17,6 +17,8 @@ void sbus::begin() {
 #elif defined(ARDUINO_ARCH_RP2040)
   SerialUART *serialPort = (SerialUART *)_rxPort;
   serialPort->setPinout(_txPin, _rxPin);
+  serialPort->setInvertRX(_inverted);
+  serialPort->setInvertTX(_inverted);
   serialPort->begin(SBUS_BAUDRATE, SERIAL_8E2);
 #else
 #warning "Unsupported hardware platform."