diff --git a/radio/src/gui/gui_common_arm.cpp b/radio/src/gui/gui_common_arm.cpp
index 4dcc5bfd3..f4b6e6338 100644
--- a/radio/src/gui/gui_common_arm.cpp
+++ b/radio/src/gui/gui_common_arm.cpp
@@ -546,12 +546,12 @@ bool isInternalModuleAvailable(int module)
 bool isExternalModuleAvailable(int module)
 {
 #if !defined(PXX1)
-  if (module == MODULE_TYPE_XJT || module == MODULE_TYPE_R9M) {
+  if (module == MODULE_TYPE_XJT || module == MODULE_TYPE_R9M || module == MODULE_TYPE_R9M_LITE) {
     return false;
   }
 #endif
 #if !defined(PXX2)
-  if (module == MODULE_TYPE_XJT2 || module == MODULE_TYPE_R9M2) {
+  if (module == MODULE_TYPE_XJT2 || module == MODULE_TYPE_R9M2 || module == MODULE_TYPE_R9M_LITE2 || module == MODULE_TYPE_R9M_LITE_PRO2) {
     return false;
   }
 #endif
diff --git a/radio/src/myeeprom.h b/radio/src/myeeprom.h
index 8092f5c76..34d7e7072 100644
--- a/radio/src/myeeprom.h
+++ b/radio/src/myeeprom.h
@@ -408,6 +408,9 @@ enum ModuleTypes {
   MODULE_TYPE_MULTIMODULE,
   MODULE_TYPE_R9M,
   MODULE_TYPE_R9M2,
+  MODULE_TYPE_R9M_LITE,
+  MODULE_TYPE_R9M_LITE2,
+  MODULE_TYPE_R9M_LITE_PRO2,
   MODULE_TYPE_SBUS,
   MODULE_TYPE_MAX = MODULE_TYPE_SBUS,
   MODULE_TYPE_COUNT
diff --git a/radio/src/pulses/modules.h b/radio/src/pulses/modules.h
index f96b1e96f..8a283b613 100644
--- a/radio/src/pulses/modules.h
+++ b/radio/src/pulses/modules.h
@@ -59,7 +59,6 @@ inline bool isModuleXJT2(uint8_t idx)
   return g_model.moduleData[idx].type == MODULE_TYPE_XJT2;
 }
 
-
 inline bool isModuleXJTVariant(uint8_t idx)
 {
   return g_model.moduleData[idx].type == MODULE_TYPE_XJT || g_model.moduleData[idx].type == MODULE_TYPE_XJT2;
@@ -112,12 +111,12 @@ inline bool isModulePPM(uint8_t idx)
 
 inline bool isModuleR9M(uint8_t idx)
 {
-  return g_model.moduleData[idx].type == MODULE_TYPE_R9M;
+  return g_model.moduleData[idx].type == MODULE_TYPE_R9M || g_model.moduleData[idx].type == MODULE_TYPE_R9M_LITE;
 }
 
 inline bool isModuleR9M2(uint8_t idx)
 {
-  return g_model.moduleData[idx].type == MODULE_TYPE_R9M2;
+  return g_model.moduleData[idx].type == MODULE_TYPE_R9M2 || g_model.moduleData[idx].type == MODULE_TYPE_R9M_LITE2 || g_model.moduleData[idx].type == MODULE_TYPE_R9M_LITE_PRO2;
 }
 
 #if defined(PCBXLITE)
diff --git a/radio/src/pulses/pulses.cpp b/radio/src/pulses/pulses.cpp
index a2afa462d..a4cb4b782 100755
--- a/radio/src/pulses/pulses.cpp
+++ b/radio/src/pulses/pulses.cpp
@@ -50,12 +50,26 @@ uint8_t getRequiredProtocol(uint8_t module)
       break;
 
     case MODULE_TYPE_XJT:
+#if defined(INTMODULE_USART)
+      if (module == INTERNAL_MODULE) {
+        protocol = PROTOCOL_CHANNELS_PXX1_SERIAL;
+        break;
+      }
+#endif
+      // no break
+
     case MODULE_TYPE_R9M:
-      protocol = PROTOCOL_CHANNELS_PXX1;
+      protocol = PROTOCOL_CHANNELS_PXX1_PULSES;
+      break;
+
+    case MODULE_TYPE_R9M_LITE:
+      protocol = PROTOCOL_CHANNELS_PXX1_SERIAL;
       break;
 
     case MODULE_TYPE_XJT2:
     case MODULE_TYPE_R9M2:
+    case MODULE_TYPE_R9M_LITE2:
+    case MODULE_TYPE_R9M_LITE_PRO2:
       protocol = PROTOCOL_CHANNELS_PXX2;
       break;
 
@@ -119,10 +133,18 @@ void disablePulses(uint8_t module, uint8_t protocol)
   // stop existing protocol hardware
 
   switch (protocol) {
-    case PROTOCOL_CHANNELS_PXX1:
-      disable_pxx(module);
+#if defined(PXX1)
+    case PROTOCOL_CHANNELS_PXX1_PULSES:
+      disable_pxx1_pulses(module);
       break;
 
+#if defined(INTMODULE_USART) || defined(EXTMODULE_USART)
+    case PROTOCOL_CHANNELS_PXX1_SERIAL:
+      disable_pxx1_serial(module);
+      break;
+#endif
+#endif
+
 #if defined(DSM2)
     case PROTOCOL_CHANNELS_DSM2_LP45:
     case PROTOCOL_CHANNELS_DSM2_DSM2:
@@ -137,9 +159,11 @@ void disablePulses(uint8_t module, uint8_t protocol)
       break;
 #endif
 
+#if defined(PXX2)
     case PROTOCOL_CHANNELS_PXX2:
       disable_pxx2(module);
       break;
+#endif
 
 #if defined(MULTIMODULE)
       case PROTOCOL_CHANNELS_MULTIMODULE:
@@ -159,10 +183,18 @@ void enablePulses(uint8_t module, uint8_t protocol)
   // start new protocol hardware here
 
   switch (protocol) {
-    case PROTOCOL_CHANNELS_PXX1:
-      init_pxx(module);
+#if defined(PXX1)
+    case PROTOCOL_CHANNELS_PXX1_PULSES:
+      init_pxx1_pulses(module);
       break;
 
+#if defined(INTMODULE_USART) || defined(EXTMODULE_USART)
+    case PROTOCOL_CHANNELS_PXX1_SERIAL:
+      init_pxx1_serial(module);
+      break;
+#endif
+#endif
+
 #if defined(DSM2)
     case PROTOCOL_CHANNELS_DSM2_LP45:
     case PROTOCOL_CHANNELS_DSM2_DSM2:
@@ -177,9 +209,11 @@ void enablePulses(uint8_t module, uint8_t protocol)
       break;
 #endif
 
+#if defined(PXX2)
     case PROTOCOL_CHANNELS_PXX2:
       init_pxx2(module);
       break;
+#endif
 
 #if defined(MULTIMODULE)
     case PROTOCOL_CHANNELS_MULTIMODULE:
@@ -197,28 +231,19 @@ void enablePulses(uint8_t module, uint8_t protocol)
   }
 }
 
-#if defined(PXX1)
-void setupPulsesPXXInternalModule()
-{
-#if defined(INTMODULE_USART)
-  intmodulePulsesData.pxx_uart.setupFrame(INTERNAL_MODULE);
-#else
-  intmodulePulsesData.pxx.setupFrame(INTERNAL_MODULE);
-#endif
-}
-
-void setupPulsesPXXExternalModule()
-{
-  extmodulePulsesData.pxx.setupFrame(EXTERNAL_MODULE);
-}
-#endif
-
 void setupPulsesInternalModule(uint8_t protocol)
 {
   switch (protocol) {
-#if defined(PXX1)
-    case PROTOCOL_CHANNELS_PXX1:
-      setupPulsesPXXInternalModule();
+#if defined(PXX1) && !defined(INTMODULE_USART)
+    case PROTOCOL_CHANNELS_PXX1_PULSES:
+      intmodulePulsesData.pxx.setupFrame(INTERNAL_MODULE);
+      scheduleNextMixerCalculation(INTERNAL_MODULE, INTMODULE_PXX_PERIOD);
+      break;
+#endif
+
+#if defined(PXX1) && defined(INTMODULE_USART)
+    case PROTOCOL_CHANNELS_PXX1_SERIAL:
+      intmodulePulsesData.pxx_uart.setupFrame(INTERNAL_MODULE);
       scheduleNextMixerCalculation(INTERNAL_MODULE, INTMODULE_PXX_PERIOD);
       break;
 #endif
@@ -246,9 +271,14 @@ void setupPulsesExternalModule(uint8_t protocol)
 {
   switch (protocol) {
 #if defined(PXX1)
-    case PROTOCOL_CHANNELS_PXX1:
-      setupPulsesPXXExternalModule();
-      scheduleNextMixerCalculation(EXTERNAL_MODULE, EXTMODULE_PXX_PERIOD);
+    case PROTOCOL_CHANNELS_PXX1_PULSES:
+      extmodulePulsesData.pxx.setupFrame(EXTERNAL_MODULE);
+      scheduleNextMixerCalculation(EXTERNAL_MODULE, PXX_PULSES_PERIOD);
+      break;
+
+    case PROTOCOL_CHANNELS_PXX1_SERIAL:
+      extmodulePulsesData.pxx_uart.setupFrame(EXTERNAL_MODULE);
+      scheduleNextMixerCalculation(EXTERNAL_MODULE, EXTMODULE_PXX_SERIAL_PERIOD);
       break;
 #endif
 
diff --git a/radio/src/pulses/pulses.h b/radio/src/pulses/pulses.h
index 61b46ee64..37eacb033 100644
--- a/radio/src/pulses/pulses.h
+++ b/radio/src/pulses/pulses.h
@@ -152,6 +152,9 @@ union InternalModulePulsesData {
 
 union ExternalModulePulsesData {
 #if defined(PXX1)
+  #if defined(EXTMODULE_USART)
+    UartPxx1Pulses pxx_uart;
+  #endif
   #if defined(PPM_PIN_SERIAL)
     SerialPxx1Pulses pxx;
   #else
@@ -225,7 +228,8 @@ enum ChannelsProtocols {
   PROTOCOL_CHANNELS_NONE,
   PROTOCOL_CHANNELS_PPM,
 #if defined(PXX) || defined(DSM2)
-  PROTOCOL_CHANNELS_PXX1,
+  PROTOCOL_CHANNELS_PXX1_PULSES,
+  PROTOCOL_CHANNELS_PXX1_SERIAL,
 #endif
 #if defined(DSM2)
   PROTOCOL_CHANNELS_DSM2_LP45,
diff --git a/radio/src/pulses/pxx.h b/radio/src/pulses/pxx.h
index ec9d1dad8..cb6d1ecd5 100644
--- a/radio/src/pulses/pxx.h
+++ b/radio/src/pulses/pxx.h
@@ -27,21 +27,23 @@
 #define PXX_SEND_FAILSAFE                  (1 << 4)
 #define PXX_SEND_RANGECHECK                (1 << 5)
 
-#define PXX2_ON_SPORT_BAUDRATE   230400
-#define PXX2_PERIOD              4 // 4ms
-#define PXX2_FRAME_MAXLENGTH     64
+#define PXX2_ON_SPORT_BAUDRATE             230400
+#define PXX2_PERIOD                        4 // 4ms
+#define PXX2_FRAME_MAXLENGTH               64
 
-#define EXTMODULE_PXX_PERIOD     9/*ms*/
+#define PXX_PULSES_PERIOD                  9/*ms*/
+#define EXTMODULE_PXX_SERIAL_PERIOD        4/*ms*/
+#define EXTMODULE_PXX_SERIAL_BAUDRATE      420000
 
 #if defined(PXX_FREQUENCY_HIGH)
-  #define INTMODULE_USART_PXX_BAUDRATE     450000
+  #define INTMODULE_PXX_BAUDRATE           450000
   #define INTMODULE_PXX_PERIOD             4/*ms*/
 #else
-  #define INTMODULE_USART_PXX_BAUDRATE     115200
+  #define INTMODULE_PXX_BAUDRATE           115200
   #define INTMODULE_PXX_PERIOD             9/*ms*/
 #endif
 
-#define EXTMODULE_USART_PXX2_BAUDRATE     450000
+#define EXTMODULE_USART_PXX2_BAUDRATE      450000
 
 #if defined(PXX_FREQUENCY_HIGH) && (!defined(INTMODULE_USART) || !defined(EXTMODULE_USART))
 /* PXX uses 20 bytes (as of Rev 1.1 document) with 8 changes per byte + stop bit ~= 162 max pulses */
@@ -53,9 +55,6 @@
 #error "Pulses array needs to be increased (PXX_FREQUENCY=HIGH)"
 #endif
 
-
-#define PXX_PERIOD_HALF_US                 (PXX_PERIOD * 2000)
-
 // Used by the Sky9x family boards
 class SerialPxxBitTransport: public DataBuffer<uint8_t, 64> {
   protected:
diff --git a/radio/src/pulses/pxx1.cpp b/radio/src/pulses/pxx1.cpp
index 86e05a615..e11642b4e 100644
--- a/radio/src/pulses/pxx1.cpp
+++ b/radio/src/pulses/pxx1.cpp
@@ -216,10 +216,10 @@ void Pxx1Pulses<PxxTransport>::add8ChannelsFrame(uint8_t module, uint8_t sendUpp
 template <class PxxTransport>
 void Pxx1Pulses<PxxTransport>::setupFrame(uint8_t module)
 {
-  PxxTransport::initFrame(module == INTERNAL_MODULE ? INTMODULE_PXX_PERIOD : EXTMODULE_PXX_PERIOD);
+  PxxTransport::initFrame(PXX_PULSES_PERIOD);
 
 #if defined(PXX_FREQUENCY_HIGH)
-  if (module == INTERNAL_MODULE) {
+  if (moduleSettings[module].protocol == PROTOCOL_CHANNELS_PXX1_SERIAL) {
     add8ChannelsFrame(module, 0);
     if (sentModuleChannels(module) > 8) {
       add8ChannelsFrame(module, 8);
diff --git a/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp b/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp
index 6cfaa327e..4d70e3463 100755
--- a/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp
@@ -41,7 +41,7 @@ void intmoduleStop()
 
 void intmodulePxxStart()
 {
-  intmoduleSerialStart(INTMODULE_USART_PXX_BAUDRATE, false);
+  intmoduleSerialStart(INTMODULE_PXX_BAUDRATE, false);
 }
 
 void intmoduleSerialStart(uint32_t baudrate, uint8_t rxEnable)
@@ -138,8 +138,9 @@ void intmoduleSendNextFrame()
       intmoduleSendBuffer(intmodulePulsesData.pxx2.getData(), intmodulePulsesData.pxx2.getSize());
       break;
 #endif
+
 #if defined(PXX1)
-    case PROTOCOL_CHANNELS_PXX1:
+    case PROTOCOL_CHANNELS_PXX1_SERIAL:
       intmoduleSendBuffer(intmodulePulsesData.pxx_uart.getData(), intmodulePulsesData.pxx_uart.getSize());
       break;
 #endif
diff --git a/radio/src/targets/horus/board.h b/radio/src/targets/horus/board.h
index 962f8455d..f09726de6 100644
--- a/radio/src/targets/horus/board.h
+++ b/radio/src/targets/horus/board.h
@@ -209,8 +209,8 @@ extern HardwareOptions hardwareOptions;
 
 void init_ppm(uint8_t module);
 void disable_ppm(uint8_t module);
-void init_pxx(uint8_t module);
-void disable_pxx(uint8_t module);
+void init_pxx1_pulses(uint8_t module);
+void disable_pxx1_pulses(uint8_t module);
 void init_pxx2(uint8_t module);
 void disable_pxx2(uint8_t module);
 void init_serial(uint8_t module, uint32_t baudrate, uint32_t period_half_us);
diff --git a/radio/src/targets/horus/extmodule_driver.cpp b/radio/src/targets/horus/extmodule_driver.cpp
index 87a8a0ec5..4fb25ab08 100644
--- a/radio/src/targets/horus/extmodule_driver.cpp
+++ b/radio/src/targets/horus/extmodule_driver.cpp
@@ -232,7 +232,7 @@ void extmoduleSendNextFrame()
     EXTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
   }
 #if defined(PXX1)
-  else if (moduleSettings[EXTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX1) {
+  else if (moduleSettings[EXTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX1_PULSES) {
     EXTMODULE_TIMER->CCR2 = extmodulePulsesData.pxx.getLast() - 4000; // 2mS in advance
     EXTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
 #if defined(PCBX10) || PCBREV >= 13
@@ -245,6 +245,9 @@ void extmoduleSendNextFrame()
     EXTMODULE_DMA_STREAM->NDTR = extmodulePulsesData.pxx.getSize();
     EXTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
   }
+  else if (moduleSettings[EXTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX1_SERIAL) {
+    #warning "Take it from 2.2"
+  }
 #endif
 #if defined(PXX2)
   else if (moduleSettings[EXTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX2) {
diff --git a/radio/src/targets/horus/pulses_driver.cpp b/radio/src/targets/horus/pulses_driver.cpp
index f70189cec..57fca8889 100644
--- a/radio/src/targets/horus/pulses_driver.cpp
+++ b/radio/src/targets/horus/pulses_driver.cpp
@@ -48,7 +48,7 @@ void disable_ppm(uint8_t module)
 void init_pxx2(uint8_t module)
 {
   if (module == INTERNAL_MODULE)
-    intmoduleSerialStart(INTMODULE_USART_PXX_BAUDRATE, true);
+    intmoduleSerialStart(INTMODULE_PXX_BAUDRATE, true);
   else
     extmodulePxx2Start();
 }
@@ -61,7 +61,7 @@ void disable_pxx2(uint8_t module)
     extmoduleStop();
 }
 
-void init_pxx(uint8_t module)
+void init_pxx1_pulses(uint8_t module)
 {
   if (module == INTERNAL_MODULE)
     intmodulePxxStart();
@@ -69,7 +69,7 @@ void init_pxx(uint8_t module)
     extmodulePxxStart();
 }
 
-void disable_pxx(uint8_t module)
+void disable_pxx1_pulses(uint8_t module)
 {
   if (module == INTERNAL_MODULE)
     intmoduleStop();
diff --git a/radio/src/targets/taranis/board.h b/radio/src/targets/taranis/board.h
index 9b44b4a5d..18ee13282 100644
--- a/radio/src/targets/taranis/board.h
+++ b/radio/src/targets/taranis/board.h
@@ -177,8 +177,10 @@ void init_ppm(uint8_t module);
 void disable_ppm(uint8_t module);
 void init_pxx2(uint8_t module);
 void disable_pxx2(uint8_t module);
-void init_pxx(uint8_t module);
-void disable_pxx(uint8_t module);
+void init_pxx1_pulses(uint8_t module);
+void init_pxx1_serial(uint8_t module);
+void disable_pxx1_pulses(uint8_t module);
+void disable_pxx1_serial(uint8_t module);
 void init_serial(uint8_t module, uint32_t baudrate, uint32_t period);
 void disable_serial(uint8_t module);
 void intmoduleStop();
@@ -192,7 +194,8 @@ void intmoduleSendNextFrame();
 
 void extmoduleStop();
 void extmodulePpmStart();
-void extmodulePxxStart();
+void extmodulePxxPulsesStart();
+void extmodulePxxSerialStart();
 void extmodulePxx2Start();
 void extmoduleSerialStart(uint32_t baudrate, uint32_t period_half_us);
 void extmoduleInvertedSerialStart(uint32_t baudrate);
diff --git a/radio/src/targets/taranis/extmodule_driver.cpp b/radio/src/targets/taranis/extmodule_driver.cpp
index b3f0fd6a2..ef1802368 100644
--- a/radio/src/targets/taranis/extmodule_driver.cpp
+++ b/radio/src/targets/taranis/extmodule_driver.cpp
@@ -207,7 +207,7 @@ void extmodulePxx2Start()
 #endif
 
 #if defined(PXX1)
-void extmodulePxxStart()
+void extmodulePxxPulsesStart()
 {
   EXTERNAL_MODULE_ON();
 
@@ -223,7 +223,7 @@ void extmodulePxxStart()
 
   EXTMODULE_TIMER->CR1 &= ~TIM_CR1_CEN;
   EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS (2Mhz)
-  EXTMODULE_TIMER->ARR = EXTMODULE_PXX_PERIOD * 2000; // 0.5uS (2Mhz)
+  EXTMODULE_TIMER->ARR = PXX_PULSES_PERIOD * 2000; // 0.5uS (2Mhz)
   EXTMODULE_TIMER->CCER = EXTMODULE_TIMER_OUTPUT_ENABLE | EXTMODULE_TIMER_OUTPUT_POLARITY; // polarity, default low
   EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE; // Enable outputs
   EXTMODULE_TIMER->CCR1 = 18;
@@ -243,6 +243,13 @@ void extmodulePxxStart()
 }
 #endif
 
+#if defined(PXX1) && defined(EXTMODULE_USART)
+void extmodulePxxSerialStart()
+{
+  extmoduleInvertedSerialStart(EXTMODULE_PXX_SERIAL_BAUDRATE);
+}
+#endif
+
 void extmoduleSendNextFrame()
 {
   switch(moduleSettings[EXTERNAL_MODULE].protocol) {
@@ -259,7 +266,7 @@ void extmoduleSendNextFrame()
       break;
 
 #if defined(PXX1)
-    case PROTOCOL_CHANNELS_PXX1:
+    case PROTOCOL_CHANNELS_PXX1_PULSES:
       EXTMODULE_TIMER->CCR2 = extmodulePulsesData.pxx.getLast() - 4000; // 2mS in advance
       EXTMODULE_TIMER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
       EXTMODULE_TIMER_DMA_STREAM->CR |= EXTMODULE_TIMER_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
@@ -268,6 +275,10 @@ void extmoduleSendNextFrame()
       EXTMODULE_TIMER_DMA_STREAM->NDTR = extmodulePulsesData.pxx.getSize();
       EXTMODULE_TIMER_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
       break;
+
+    case PROTOCOL_CHANNELS_PXX1_SERIAL:
+      extmoduleSendBuffer(extmodulePulsesData.pxx_uart.getData(), extmodulePulsesData.pxx_uart.getSize());
+      break;
 #endif
 
 #if defined(PXX2)
diff --git a/radio/src/targets/taranis/intmodule_pulses_driver.cpp b/radio/src/targets/taranis/intmodule_pulses_driver.cpp
index 49144f288..719c0ff21 100644
--- a/radio/src/targets/taranis/intmodule_pulses_driver.cpp
+++ b/radio/src/targets/taranis/intmodule_pulses_driver.cpp
@@ -34,34 +34,36 @@ void intmoduleStop()
 
 void intmoduleSendNextFrame()
 {
-  if (0) {
-  }
+  switch (moduleSettings[INTERNAL_MODULE].protocol) {
 #if defined(PXX1)
-  else if (moduleSettings[INTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX1) {
-    INTMODULE_TIMER->CCR2 = intmodulePulsesData.pxx.getLast() - 4000; // 2mS in advance
-    INTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
-    INTMODULE_DMA_STREAM->CR |= INTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
-    INTMODULE_DMA_STREAM->PAR = CONVERT_PTR_UINT(&INTMODULE_TIMER->ARR);
-    INTMODULE_DMA_STREAM->M0AR = CONVERT_PTR_UINT(intmodulePulsesData.pxx.getData());
-    INTMODULE_DMA_STREAM->NDTR = intmodulePulsesData.pxx.getSize();
-    INTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
-  }
+    case PROTOCOL_CHANNELS_PXX1_PULSES:
+      INTMODULE_TIMER->CCR2 = intmodulePulsesData.pxx.getLast() - 4000; // 2mS in advance
+      INTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
+      INTMODULE_DMA_STREAM->CR |= INTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
+      INTMODULE_DMA_STREAM->PAR = CONVERT_PTR_UINT(&INTMODULE_TIMER->ARR);
+      INTMODULE_DMA_STREAM->M0AR = CONVERT_PTR_UINT(intmodulePulsesData.pxx.getData());
+      INTMODULE_DMA_STREAM->NDTR = intmodulePulsesData.pxx.getSize();
+      INTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
+      break;
 #endif
+
 #if defined(TARANIS_INTERNAL_PPM)
-  else if (moduleSettings[INTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PPM) {
-    INTMODULE_TIMER->CCR3 = GET_MODULE_PPM_DELAY(INTERNAL_MODULE) * 2;
-    INTMODULE_TIMER->CCER = TIM_CCER_CC3E | (GET_MODULE_PPM_POLARITY(INTERNAL_MODULE) ? 0 : TIM_CCER_CC3P);
-    INTMODULE_TIMER->CCR2 = *(intmodulePulsesData.ppm.ptr - 1) - 4000; // 2mS in advance
-    INTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
-    INTMODULE_DMA_STREAM->CR |= INTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
-    INTMODULE_DMA_STREAM->PAR = CONVERT_PTR_UINT(&INTMODULE_TIMER->ARR);
-    INTMODULE_DMA_STREAM->M0AR = CONVERT_PTR_UINT(intmodulePulsesData.ppm.pulses);
-    INTMODULE_DMA_STREAM->NDTR = intmodulePulsesData.ppm.ptr - intmodulePulsesData.ppm.pulses;
-    INTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
-  }
+    case PROTOCOL_CHANNELS_PPM:
+      INTMODULE_TIMER->CCR3 = GET_MODULE_PPM_DELAY(INTERNAL_MODULE) * 2;
+      INTMODULE_TIMER->CCER = TIM_CCER_CC3E | (GET_MODULE_PPM_POLARITY(INTERNAL_MODULE) ? 0 : TIM_CCER_CC3P);
+      INTMODULE_TIMER->CCR2 = *(intmodulePulsesData.ppm.ptr - 1) - 4000; // 2mS in advance
+      INTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
+      INTMODULE_DMA_STREAM->CR |= INTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
+      INTMODULE_DMA_STREAM->PAR = CONVERT_PTR_UINT(&INTMODULE_TIMER->ARR);
+      INTMODULE_DMA_STREAM->M0AR = CONVERT_PTR_UINT(intmodulePulsesData.ppm.pulses);
+      INTMODULE_DMA_STREAM->NDTR = intmodulePulsesData.ppm.ptr - intmodulePulsesData.ppm.pulses;
+      INTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
+      break;
 #endif
-  else {
-    INTMODULE_TIMER->DIER |= TIM_DIER_CC2IE;
+
+    default:
+      INTMODULE_TIMER->DIER |= TIM_DIER_CC2IE;
+      break;
   }
 }
 
diff --git a/radio/src/targets/taranis/pulses_driver.cpp b/radio/src/targets/taranis/pulses_driver.cpp
index ffe444875..b09c1fff0 100644
--- a/radio/src/targets/taranis/pulses_driver.cpp
+++ b/radio/src/targets/taranis/pulses_driver.cpp
@@ -20,17 +20,24 @@
 
 #include "opentx.h"
 
-void init_pxx(uint8_t module)
-{
 #if defined(PXX1)
+void init_pxx1_pulses(uint8_t module)
+{
   if (module == INTERNAL_MODULE)
     intmodulePxxStart();
   else
-    extmodulePxxStart();
-#endif
+    extmodulePxxPulsesStart();
 }
 
-void disable_pxx(uint8_t module)
+void init_pxx1_serial(uint8_t module)
+{
+  if (module == INTERNAL_MODULE)
+    intmodulePxxStart();
+  else
+    extmodulePxxSerialStart();
+}
+
+void disable_pxx1_pulses(uint8_t module)
 {
   if (module == INTERNAL_MODULE)
     intmoduleStop();
@@ -38,10 +45,19 @@ void disable_pxx(uint8_t module)
     extmoduleStop();
 }
 
+void disable_pxx1_serial(uint8_t module)
+{
+  if (module == INTERNAL_MODULE)
+    intmoduleStop();
+  else
+    extmoduleStop();
+}
+#endif
+
 void init_pxx2(uint8_t module)
 {
   if (module == INTERNAL_MODULE)
-    intmoduleSerialStart(INTMODULE_USART_PXX_BAUDRATE, true);
+    intmoduleSerialStart(INTMODULE_PXX_BAUDRATE, true);
   else
     extmodulePxx2Start();
 }
diff --git a/radio/src/tasks.cpp b/radio/src/tasks.cpp
index a058196b7..94a26340f 100644
--- a/radio/src/tasks.cpp
+++ b/radio/src/tasks.cpp
@@ -78,8 +78,8 @@ bool isModuleSynchronous(uint8_t module)
   uint8_t protocol = moduleSettings[module].protocol;
   if (protocol == PROTOCOL_CHANNELS_PXX2 || protocol == PROTOCOL_CHANNELS_CROSSFIRE || protocol == PROTOCOL_CHANNELS_NONE)
     return true;
-#if defined(INTMODULE_USART)
-  if (protocol == PROTOCOL_CHANNELS_PXX1 && module == INTERNAL_MODULE)
+#if defined(INTMODULE_USART) || defined(EXTMODULE_USART)
+  if (protocol == PROTOCOL_CHANNELS_PXX1_SERIAL)
     return true;
 #endif
   return false;
diff --git a/radio/src/translations/cz.h.txt b/radio/src/translations/cz.h.txt
index 958eab79e..23c8094e3 100644
--- a/radio/src/translations/cz.h.txt
+++ b/radio/src/translations/cz.h.txt
@@ -99,11 +99,11 @@
 #define LEN_USBMODES           TR("\006", "\010")
 #define TR_USBMODES            TR("Ask\0  ""Joyst\0""SDCard""Serial", "Ask\0    ""Joystick""Storage\0""Serial\0 ")
 
-#define LEN_JACKMODES                  "\007"
-#define TR_JACKMODES                   "Popup\0 ""Audio\0 ""Trainer"
+#define LEN_JACKMODES          "\007"
+#define TR_JACKMODES           "Popup\0 ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   "Vyp\0""PPM\0""XJT\0""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS       "\005"
+#define TR_TARANIS_PROTOCOLS         "Vyp\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  FrSky D\0       FrSky D (kabel)Spektrum\0      "
diff --git a/radio/src/translations/de.h.txt b/radio/src/translations/de.h.txt
index fdf952c77..a376f4d0b 100644
--- a/radio/src/translations/de.h.txt
+++ b/radio/src/translations/de.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Popup\0 ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   "AUS\0""PPM\0""XJT\0""DSM?""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "AUS\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (Kabel)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/en.h.txt b/radio/src/translations/en.h.txt
index 48ffe3406..7c9fa2be4 100644
--- a/radio/src/translations/en.h.txt
+++ b/radio/src/translations/en.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS          "\004"
-#define TR_TARANIS_PROTOCOLS           "OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS        "\017"
 #define TR_TELEMETRY_PROTOCOLS         "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/es.h.txt b/radio/src/translations/es.h.txt
index 5644bbb6d..0282c2745 100644
--- a/radio/src/translations/es.h.txt
+++ b/radio/src/translations/es.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   )"OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/fi.h.txt b/radio/src/translations/fi.h.txt
index a20c3f18d..74c46e54a 100644
--- a/radio/src/translations/fi.h.txt
+++ b/radio/src/translations/fi.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   )"OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/fr.h.txt b/radio/src/translations/fr.h.txt
index 1d440031b..673f13721 100644
--- a/radio/src/translations/fr.h.txt
+++ b/radio/src/translations/fr.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS          "\004"
-#define TR_TARANIS_PROTOCOLS           )"OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS        "\017"
 #define TR_TELEMETRY_PROTOCOLS         "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/it.h.txt b/radio/src/translations/it.h.txt
index a05af8b65..5d55d27cf 100644
--- a/radio/src/translations/it.h.txt
+++ b/radio/src/translations/it.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   )"OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/nl.h.txt b/radio/src/translations/nl.h.txt
index e9fc37a67..4c61c8c35 100644
--- a/radio/src/translations/nl.h.txt
+++ b/radio/src/translations/nl.h.txt
@@ -106,8 +106,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Popup\0 ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   "UIT\0""PPM\0""XJT\0""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "UIT\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/pl.h.txt b/radio/src/translations/pl.h.txt
index 65dd1aab9..71993cd87 100644
--- a/radio/src/translations/pl.h.txt
+++ b/radio/src/translations/pl.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   )"OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/pt.h.txt b/radio/src/translations/pt.h.txt
index 7831b2ac1..13d7c9995 100644
--- a/radio/src/translations/pt.h.txt
+++ b/radio/src/translations/pt.h.txt
@@ -104,8 +104,8 @@
 #define LEN_JACKMODES                  "\007"
 #define TR_JACKMODES                   "Popup\0 ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   )"OFF\0""PPM\0""XJT\0""XJT2""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS                "\005"
+#define TR_TARANIS_PROTOCOLS                "OFF\0 ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"
diff --git a/radio/src/translations/se.h.txt b/radio/src/translations/se.h.txt
index f10c9a309..18d248fab 100644
--- a/radio/src/translations/se.h.txt
+++ b/radio/src/translations/se.h.txt
@@ -101,11 +101,11 @@
 #define LEN_USBMODES           TR("\006", "\010")
 #define TR_USBMODES            TR("Ask\0  ""Joyst\0""SDCard""Serial", "Ask\0    ""Joystick""Storage\0""Serial\0 ")
 
-#define LEN_JACKMODES                  "\007"
-#define TR_JACKMODES                   "Ask\0   ""Audio\0 ""Trainer"
+#define LEN_JACKMODES          "\007"
+#define TR_JACKMODES           "Ask\0   ""Audio\0 ""Trainer"
 
-#define LEN_TARANIS_PROTOCOLS  "\004"
-#define TR_TARANIS_PROTOCOLS   "Av\0 ""PPM\0""XJT\0""DSM2""CRSF""MULT""R9M\0""R9M2""SBUS"
+#define LEN_TARANIS_PROTOCOLS        "\005"
+#define TR_TARANIS_PROTOCOLS         "Av\0  ""PPM\0 ""XJT\0 ""XJT2\0""DSM2\0""CRSF\0""MULT\0""R9M\0 ""R9M2\0""R9LT\0""R9LT2""R9LP2""SBUS\0"
 
 #define LEN_TELEMETRY_PROTOCOLS "\017"
 #define TR_TELEMETRY_PROTOCOLS "FrSky S.PORT\0  ""FrSky D\0       ""FrSky D (cable)""TBS Crossfire\0 ""Spektrum\0      ""AFHDS2A IBUS\0  ""Multi Telemetry"