diff --git a/src/main/drivers/transponder_ir.c b/src/main/drivers/transponder_ir.c
index 92c6ebcdc..1b2ff1678 100644
--- a/src/main/drivers/transponder_ir.c
+++ b/src/main/drivers/transponder_ir.c
@@ -24,7 +24,12 @@
 #include "dma.h"
 #include "nvic.h"
 #include "io.h"
+#include "rcc.h"
 #include "timer.h"
+#if defined(STM32F4)
+#include "timer_stm32f4xx.h"
+#endif
+
 #include "transponder_ir.h"
 
 /*
@@ -39,6 +44,135 @@ uint8_t transponderIrDMABuffer[TRANSPONDER_DMA_BUFFER_SIZE];
 
 volatile uint8_t transponderIrDataTransferInProgress = 0;
 
+static IO_t transponderIO = IO_NONE;
+static TIM_TypeDef *timer = NULL;
+#if defined(STM32F3)
+static DMA_Channel_TypeDef *dmaChannel = NULL;
+#elif defined(STM32F4)
+static DMA_Stream_TypeDef *stream = NULL;
+#else
+#error "Transponder not supported on this MCU."
+#endif
+
+static void TRANSPONDER_DMA_IRQHandler(dmaChannelDescriptor_t* descriptor)
+{
+    if (DMA_GET_FLAG_STATUS(descriptor, DMA_IT_TCIF)) {
+        transponderIrDataTransferInProgress = 0;
+#if defined(STM32F3)
+        DMA_Cmd(descriptor->channel, DISABLE);
+#elif defined(STM32F4)
+        DMA_Cmd(descriptor->stream, DISABLE);
+#endif
+        DMA_CLEAR_FLAG(descriptor, DMA_IT_TCIF);
+    }
+}
+
+void transponderIrHardwareInit(ioTag_t ioTag)
+{
+    if (!ioTag) {
+        return;
+    }
+
+    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
+    TIM_OCInitTypeDef  TIM_OCInitStructure;
+    DMA_InitTypeDef DMA_InitStructure;
+
+    const timerHardware_t *timerHardware = timerGetByTag(ioTag, TIM_USE_ANY);
+    timer = timerHardware->tim;
+
+#if defined(STM32F3)
+    if (timerHardware->dmaChannel == NULL) {
+        return;
+    }
+#elif defined(STM32F4)
+    if (timerHardware->dmaStream == NULL) {
+        return;
+    }
+#endif
+
+    transponderIO = IOGetByTag(ioTag);
+    IOInit(transponderIO, OWNER_TRANSPONDER, 0);
+    IOConfigGPIOAF(transponderIO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_DOWN), timerHardware->alternateFunction);
+
+    dmaInit(timerHardware->dmaIrqHandler, OWNER_TRANSPONDER, 0);
+    dmaSetHandler(timerHardware->dmaIrqHandler, TRANSPONDER_DMA_IRQHandler, NVIC_PRIO_TRANSPONDER_DMA, 0);
+
+    RCC_ClockCmd(timerRCC(timer), ENABLE);
+
+    /* Time base configuration */
+    TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
+    TIM_TimeBaseStructure.TIM_Period = 156;
+    TIM_TimeBaseStructure.TIM_Prescaler = 0;
+    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
+    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
+    TIM_TimeBaseInit(timer, &TIM_TimeBaseStructure);
+
+    /* PWM1 Mode configuration: Channel1 */
+    TIM_OCStructInit(&TIM_OCInitStructure);
+    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
+    if (timerHardware->output & TIMER_OUTPUT_N_CHANNEL) {
+        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
+        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
+    } else {
+        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
+        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
+    }
+
+    TIM_OCInitStructure.TIM_OCPolarity =  (timerHardware->output & TIMER_OUTPUT_INVERTED) ? TIM_OCPolarity_Low : TIM_OCPolarity_High;
+    TIM_OCInitStructure.TIM_Pulse = 0;
+#if defined(STM32F3)
+    TIM_OC1Init(timer, &TIM_OCInitStructure);
+    TIM_OC1PreloadConfig(timer, TIM_OCPreload_Enable);
+#elif defined(STM32F4)
+    timerOCInit(timer, timerHardware->channel, &TIM_OCInitStructure);
+    timerOCPreloadConfig(timer, timerHardware->channel, TIM_OCPreload_Enable);
+#endif
+    TIM_CtrlPWMOutputs(timer, ENABLE);
+
+    /* configure DMA */
+#if defined(STM32F3)
+    dmaChannel = timerHardware->dmaChannel;
+    DMA_DeInit(dmaChannel);
+#elif defined(STM32F4)
+    stream = timerHardware->dmaStream;
+    DMA_Cmd(stream, DISABLE);
+    DMA_DeInit(stream);
+#endif
+
+    DMA_StructInit(&DMA_InitStructure);
+    DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)timerCCR(timer, timerHardware->channel);
+#if defined(STM32F3)
+    DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)transponderIrDMABuffer;
+#elif defined(STM32F4)
+    DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)transponderIrDMABuffer;
+#endif
+    DMA_InitStructure.DMA_BufferSize = TRANSPONDER_DMA_BUFFER_SIZE;
+    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
+    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
+    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
+    DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
+    DMA_InitStructure.DMA_Priority = DMA_Priority_High;
+#if defined(STM32F3)
+    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+    DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+
+    DMA_Init(dmaChannel, &DMA_InitStructure);
+#elif defined(STM32F4)
+    DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
+
+    DMA_Init(stream, &DMA_InitStructure);
+#endif
+
+    TIM_DMACmd(timer, timerDmaSource(timerHardware->channel), ENABLE);
+
+#if defined(STM32F3)
+    DMA_ITConfig(dmaChannel, DMA_IT_TC, ENABLE);
+#elif defined(STM32F4)
+    DMA_ITConfig(stream, DMA_IT_TC, ENABLE);
+#endif
+}
+
 bool transponderIrInit(void)
 {
     memset(&transponderIrDMABuffer, 0, TRANSPONDER_DMA_BUFFER_SIZE);
@@ -57,6 +191,7 @@ bool transponderIrInit(void)
 
 
     transponderIrHardwareInit(ioTag);
+
     return true;
 }
 
@@ -119,6 +254,40 @@ void transponderIrUpdateData(const uint8_t* transponderData)
     updateTransponderDMABuffer(transponderData);
 }
 
+void transponderIrDMAEnable(void)
+{
+#if defined(STM32F3)
+    DMA_SetCurrDataCounter(dmaChannel, TRANSPONDER_DMA_BUFFER_SIZE);  // load number of bytes to be transferred
+#elif defined(STM32F4)
+    DMA_SetCurrDataCounter(stream, TRANSPONDER_DMA_BUFFER_SIZE);  // load number of bytes to be transferred
+#endif
+    TIM_SetCounter(timer, 0);
+    TIM_Cmd(timer, ENABLE);
+#if defined(STM32F3)
+    DMA_Cmd(dmaChannel, ENABLE);
+#elif defined(STM32F4)
+    DMA_Cmd(stream, ENABLE);
+#endif
+}
+
+void transponderIrDisable(void)
+{
+#if defined(STM32F3)
+    DMA_Cmd(dmaChannel, DISABLE);
+#elif defined(STM32F4)
+    DMA_Cmd(stream, DISABLE);
+#endif
+    TIM_Cmd(timer, DISABLE);
+
+    IOInit(transponderIO, OWNER_TRANSPONDER, 0);
+    IOConfigGPIOAF(transponderIO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_DOWN), timerHardware->alternateFunction);
+
+#ifdef TRANSPONDER_INVERTED
+    IOHi(transponderIO);
+#else
+    IOLo(transponderIO);
+#endif
+}
 
 void transponderIrTransmit(void)
 {
diff --git a/src/main/drivers/transponder_ir_stm32f30x.c b/src/main/drivers/transponder_ir_stm32f30x.c
deleted file mode 100644
index 807d08016..000000000
--- a/src/main/drivers/transponder_ir_stm32f30x.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * This file is part of Cleanflight.
- *
- * Cleanflight is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Cleanflight is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdbool.h>
-#include <stdint.h>
-
-#include <platform.h>
-
-#include "io.h"
-#include "nvic.h"
-
-#include "dma.h"
-#include "rcc.h"
-#include "timer.h"
-
-#include "transponder_ir.h"
-
-static IO_t transponderIO = IO_NONE;
-static DMA_Channel_TypeDef *dmaChannel = NULL;
-static TIM_TypeDef *timer = NULL;
-
-static void TRANSPONDER_DMA_IRQHandler(dmaChannelDescriptor_t* descriptor)
-{
-    if (DMA_GET_FLAG_STATUS(descriptor, DMA_IT_TCIF)) {
-        transponderIrDataTransferInProgress = 0;
-        DMA_Cmd(descriptor->channel, DISABLE);
-        DMA_CLEAR_FLAG(descriptor, DMA_IT_TCIF);
-    }
-}
-
-
-void transponderIrHardwareInit(ioTag_t ioTag)
-{
-    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
-    TIM_OCInitTypeDef  TIM_OCInitStructure;
-    DMA_InitTypeDef DMA_InitStructure;
-
-    const timerHardware_t *timerHardware = timerGetByTag(ioTag, TIM_USE_ANY);
-    timer = timerHardware->tim;
-
-    if (timerHardware->dmaChannel == NULL) {
-        return;
-    }
-
-    transponderIO = IOGetByTag(ioTag);
-    IOInit(transponderIO, OWNER_TRANSPONDER, 0);
-    IOConfigGPIOAF(transponderIO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_DOWN), timerHardware->alternateFunction);
-
-    dmaInit(timerHardware->dmaIrqHandler, OWNER_TRANSPONDER, 0);
-    dmaSetHandler(timerHardware->dmaIrqHandler, TRANSPONDER_DMA_IRQHandler, NVIC_PRIO_TRANSPONDER_DMA, 0);
-    RCC_ClockCmd(timerRCC(timer), ENABLE);
-
-    /* Time base configuration */
-    TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
-    TIM_TimeBaseStructure.TIM_Period = 156;
-    TIM_TimeBaseStructure.TIM_Prescaler = 0;
-    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
-    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
-    TIM_TimeBaseInit(timer, &TIM_TimeBaseStructure);
-
-    /* PWM1 Mode configuration: Channel1 */
-    TIM_OCStructInit(&TIM_OCInitStructure);
-    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
-    if (timerHardware->output & TIMER_OUTPUT_N_CHANNEL) {
-        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
-        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
-    } else {
-        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
-        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
-    }
-    TIM_OCInitStructure.TIM_OCPolarity =  (timerHardware->output & TIMER_OUTPUT_INVERTED) ? TIM_OCPolarity_Low : TIM_OCPolarity_High;
-    TIM_OCInitStructure.TIM_Pulse = 0;
-    TIM_OC1Init(timer, &TIM_OCInitStructure);
-    TIM_OC1PreloadConfig(timer, TIM_OCPreload_Enable);
-
-    TIM_CtrlPWMOutputs(timer, ENABLE);
-
-    /* configure DMA */
-    dmaChannel = timerHardware->dmaChannel;
-    DMA_DeInit(dmaChannel);
-
-    DMA_StructInit(&DMA_InitStructure);
-    DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)timerCCR(timer, timerHardware->channel);
-    DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)transponderIrDMABuffer;
-    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
-    DMA_InitStructure.DMA_BufferSize = TRANSPONDER_DMA_BUFFER_SIZE;
-    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
-    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
-    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
-    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
-    DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
-    DMA_InitStructure.DMA_Priority = DMA_Priority_High;
-    DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
-
-    DMA_Init(dmaChannel, &DMA_InitStructure);
-
-    TIM_DMACmd(timer, timerDmaSource(timerHardware->channel), ENABLE);
-
-    DMA_ITConfig(dmaChannel, DMA_IT_TC, ENABLE);
-
-}
-
-void transponderIrDMAEnable(void)
-{
-    DMA_SetCurrDataCounter(dmaChannel, TRANSPONDER_DMA_BUFFER_SIZE);  // load number of bytes to be transferred
-    TIM_SetCounter(timer, 0);
-    TIM_Cmd(timer, ENABLE);
-    DMA_Cmd(dmaChannel, ENABLE);
-}
-
-void transponderIrDisable(void)
-{
-    DMA_Cmd(dmaChannel, DISABLE);
-    TIM_Cmd(timer, DISABLE);
-
-    IOInit(transponderIO, OWNER_TRANSPONDER, 0);
-    IOConfigGPIOAF(transponderIO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_DOWN), timerHardware->alternateFunction);
-
-#ifdef TRANSPONDER_INVERTED
-    IOHi(transponderIO);
-#else
-    IOLo(transponderIO);
-#endif
-}
-
diff --git a/src/main/drivers/transponder_ir_stm32f4xx.c b/src/main/drivers/transponder_ir_stm32f4xx.c
deleted file mode 100644
index fc89b5b54..000000000
--- a/src/main/drivers/transponder_ir_stm32f4xx.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * This file is part of Cleanflight.
- *
- * Cleanflight is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Cleanflight is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdbool.h>
-#include <stdint.h>
-
-#include <platform.h>
-
-#include "io.h"
-#include "nvic.h"
-
-#include "dma.h"
-#include "rcc.h"
-#include "timer.h"
-#include "timer_stm32f4xx.h"
-
-#include "transponder_ir.h"
-
-static IO_t transponderIO = IO_NONE;
-static DMA_Stream_TypeDef *stream = NULL;
-static TIM_TypeDef *timer = NULL;
-
-static void TRANSPONDER_DMA_IRQHandler(dmaChannelDescriptor_t* descriptor)
-{
-    if (DMA_GET_FLAG_STATUS(descriptor, DMA_IT_TCIF)) {
-        transponderIrDataTransferInProgress = 0;
-        DMA_Cmd(descriptor->stream, DISABLE);
-        DMA_CLEAR_FLAG(descriptor, DMA_IT_TCIF);
-    }
-}
-
-
-void transponderIrHardwareInit(ioTag_t ioTag)
-{
-    if (!ioTag) {
-        return;
-    }
-
-    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
-    TIM_OCInitTypeDef  TIM_OCInitStructure;
-    DMA_InitTypeDef DMA_InitStructure;
-
-    const timerHardware_t *timerHardware = timerGetByTag(ioTag, TIM_USE_ANY);
-    timer = timerHardware->tim;
-
-    if (timerHardware->dmaStream == NULL) {
-        return;
-    }
-
-    transponderIO = IOGetByTag(ioTag);
-    IOInit(transponderIO, OWNER_TRANSPONDER, 0);
-    IOConfigGPIOAF(transponderIO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_DOWN), timerHardware->alternateFunction);
-
-    dmaInit(timerHardware->dmaIrqHandler, OWNER_TRANSPONDER, 0);
-    dmaSetHandler(timerHardware->dmaIrqHandler, TRANSPONDER_DMA_IRQHandler, NVIC_PRIO_TRANSPONDER_DMA, 0);
-
-    RCC_ClockCmd(timerRCC(timer), ENABLE);
-
-    /* Time base configuration */
-    TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
-    TIM_TimeBaseStructure.TIM_Period = 156;
-    TIM_TimeBaseStructure.TIM_Prescaler = 0;
-    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
-    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
-    TIM_TimeBaseInit(timer, &TIM_TimeBaseStructure);
-
-    /* PWM1 Mode configuration: Channel1 */
-    TIM_OCStructInit(&TIM_OCInitStructure);
-    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
-    if (timerHardware->output & TIMER_OUTPUT_N_CHANNEL) {
-        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
-        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
-    } else {
-        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
-        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
-    }
-
-    TIM_OCInitStructure.TIM_OCPolarity =  (timerHardware->output & TIMER_OUTPUT_INVERTED) ? TIM_OCPolarity_Low : TIM_OCPolarity_High;
-    TIM_OCInitStructure.TIM_Pulse = 0;
-
-    timerOCInit(timer, timerHardware->channel, &TIM_OCInitStructure);
-    timerOCPreloadConfig(timer, timerHardware->channel, TIM_OCPreload_Enable);
-
-    TIM_CtrlPWMOutputs(timer, ENABLE);
-
-    /* configure DMA */
-    stream = timerHardware->dmaStream;
-    DMA_Cmd(stream, DISABLE);
-    DMA_DeInit(stream);
-
-    DMA_StructInit(&DMA_InitStructure);
-    DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)timerCCR(timer, timerHardware->channel);
-    DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)transponderIrDMABuffer;
-    DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
-    DMA_InitStructure.DMA_BufferSize = TRANSPONDER_DMA_BUFFER_SIZE;
-    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
-    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
-    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
-    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
-    DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
-    DMA_InitStructure.DMA_Priority = DMA_Priority_High;
-
-    DMA_Init(stream, &DMA_InitStructure);
-
-    TIM_DMACmd(timer, timerDmaSource(timerHardware->channel), ENABLE);
-
-    DMA_ITConfig(stream, DMA_IT_TC, ENABLE);
-}
-
-void transponderIrDMAEnable(void)
-{
-    DMA_SetCurrDataCounter(stream, TRANSPONDER_DMA_BUFFER_SIZE);  // load number of bytes to be transferred
-    TIM_SetCounter(timer, 0);
-    TIM_Cmd(timer, ENABLE);
-    DMA_Cmd(stream, ENABLE);
-}
-
-void transponderIrDisable(void)
-{
-    DMA_Cmd(stream, DISABLE);
-    TIM_Cmd(timer, DISABLE);
-
-    IOInit(transponderIO, OWNER_TRANSPONDER, 0);
-    IOConfigGPIOAF(transponderIO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_DOWN), timerHardware->alternateFunction);
-
-#ifdef TRANSPONDER_INVERTED
-    IOHi(transponderIO);
-#else
-    IOLo(transponderIO);
-#endif
-}
-
diff --git a/src/main/target/OMNIBUS/target.mk b/src/main/target/OMNIBUS/target.mk
index 5878246a4..39f1a2725 100644
--- a/src/main/target/OMNIBUS/target.mk
+++ b/src/main/target/OMNIBUS/target.mk
@@ -12,5 +12,4 @@ TARGET_SRC = \
             drivers/max7456.c \
             drivers/serial_usb_vcp.c \
             drivers/transponder_ir.c \
-            drivers/transponder_ir_stm32f30x.c \
             io/transponder_ir.c
diff --git a/src/main/target/PIKOBLX/target.mk b/src/main/target/PIKOBLX/target.mk
index 922b78405..fe40d79e3 100644
--- a/src/main/target/PIKOBLX/target.mk
+++ b/src/main/target/PIKOBLX/target.mk
@@ -5,6 +5,5 @@ TARGET_SRC = \
             drivers/accgyro_mpu.c \
             drivers/accgyro_spi_mpu6000.c \
             drivers/transponder_ir.c \
-            drivers/transponder_ir_stm32f30x.c \
             io/transponder_ir.c
 
diff --git a/src/main/target/RG_SSD_F3/target.mk b/src/main/target/RG_SSD_F3/target.mk
index 06d9d1dfa..9634576e0 100644
--- a/src/main/target/RG_SSD_F3/target.mk
+++ b/src/main/target/RG_SSD_F3/target.mk
@@ -8,7 +8,6 @@ TARGET_SRC = \
             drivers/light_ws2811strip_stm32f30x.c \
             drivers/serial_usb_vcp.c \
             drivers/transponder_ir.c \
-            drivers/transponder_ir_stm32f30x.c \
             io/transponder_ir.c
 
 HSE_VALUE      = 12000000
diff --git a/src/main/target/SPRACINGF3EVO/target.mk b/src/main/target/SPRACINGF3EVO/target.mk
index 937cd6bf4..527c06f14 100644
--- a/src/main/target/SPRACINGF3EVO/target.mk
+++ b/src/main/target/SPRACINGF3EVO/target.mk
@@ -9,6 +9,5 @@ TARGET_SRC = \
             drivers/compass_ak8963.c \
             drivers/serial_usb_vcp.c \
             drivers/transponder_ir.c \
-            drivers/transponder_ir_stm32f30x.c \
             io/transponder_ir.c
 
diff --git a/src/main/target/SPRACINGF3MINI/target.mk b/src/main/target/SPRACINGF3MINI/target.mk
index a46cf1be8..b1caf722b 100644
--- a/src/main/target/SPRACINGF3MINI/target.mk
+++ b/src/main/target/SPRACINGF3MINI/target.mk
@@ -10,7 +10,6 @@ TARGET_SRC = \
 			drivers/compass_ak8963.c \
             drivers/flash_m25p16.c \
             drivers/transponder_ir.c \
-            drivers/transponder_ir_stm32f30x.c \
             io/transponder_ir.c
 
 ifeq ($(TARGET), TINYBEEF3)
diff --git a/src/main/target/SPRACINGF3NEO/target.mk b/src/main/target/SPRACINGF3NEO/target.mk
index c596c191c..5d664fa28 100755
--- a/src/main/target/SPRACINGF3NEO/target.mk
+++ b/src/main/target/SPRACINGF3NEO/target.mk
@@ -13,7 +13,6 @@ TARGET_SRC = \
             drivers/light_ws2811strip_stm32f30x.c \
             drivers/serial_usb_vcp.c \
             drivers/transponder_ir.c \
-            drivers/transponder_ir_stm32f30x.c \
             drivers/max7456.c \
             drivers/vtx_rtc6705.c \
             io/osd.c \