diff --git a/radio/src/boards/rm-h750/board.cpp b/radio/src/boards/rm-h750/board.cpp
index e91f051db..a910ed74c 100644
--- a/radio/src/boards/rm-h750/board.cpp
+++ b/radio/src/boards/rm-h750/board.cpp
@@ -144,7 +144,6 @@ void boardInit()
 
   usbChargerInit();
   gpio_set(LED_BLUE_GPIO);
-  gpio_init(HALL_SYNC, GPIO_OUT, GPIO_PIN_SPEED_LOW);
 
   ExtFLASH_InitRuntime();
 
diff --git a/radio/src/targets/tx15/CMakeLists.txt b/radio/src/targets/tx15/CMakeLists.txt
index a5cde3357..7cb4edab6 100644
--- a/radio/src/targets/tx15/CMakeLists.txt
+++ b/radio/src/targets/tx15/CMakeLists.txt
@@ -7,6 +7,8 @@ option(GHOST "Ghost TX Module" ON)
 option(MODULE_SIZE_STD "Standard size TX Module" ON)
 option(LUA_MIXER "Enable LUA mixer/model scripts support" ON)
 option(DISK_CACHE "Enable SD card disk cache" ON)
+option(BLUETOOTH "FrSky BT module support" OFF)
+option(FLYSKY_GIMBAL "Serial gimbal support" ON)
 
 set(FIRMWARE_QSPI YES)
 set(FIRMWARE_FORMAT_UF2 YES)
@@ -27,6 +29,11 @@ set(INTERNAL_MODULE_AFHDS3 NO)
 set(ROTARY_ENCODER YES)
 set(FUNCTION_SWITCHES_WITH_RGB YES)
 
+# BT and serial gimbal share same UART
+if(BLUETOOTH)
+  set(FLYSKY_GIMBAL OFF)
+endif()
+
 #option(STICKS_DEAD_ZONE "Enable sticks dead zone" YES)
 
 # IMU support
@@ -138,6 +145,12 @@ set(BOARD_COMMON_SRC
   drivers/pca95xx.cpp
 )
 
+if(BLUETOOTH)
+  set(BOARD_COMMON_SRC ${BOARD_COMMON_SRC}
+    targets/common/arm/stm32/bluetooth_driver.cpp
+  )
+endif()
+
 # Bootloader board library
 add_library(board_bl OBJECT EXCLUDE_FROM_ALL
   ${BOARD_COMMON_SRC}
diff --git a/radio/src/targets/tx15/hal.h b/radio/src/targets/tx15/hal.h
index de2a36c86..370bffa89 100644
--- a/radio/src/targets/tx15/hal.h
+++ b/radio/src/targets/tx15/hal.h
@@ -244,9 +244,6 @@ TIM17:	ROTARY_ENCODER_TIMER
     0        	/* SWF */        \
   }
 
-// Serial gimbal sync port
-#define HALL_SYNC                   GPIO_PIN(GPIOH, 11)
-
 #define USE_EXTI9_5_IRQ // used for I2C port extender interrupt
 #define EXTI9_5_IRQ_Priority 5
 
@@ -384,16 +381,6 @@ TIM17:	ROTARY_ENCODER_TIMER
 #define HAPTIC_TIMER_MODE               TIM_CCMR1_OC2M_1 | TIM_CCMR1_OC2M_2 | TIM_CCMR1_OC2PE
 #define HAPTIC_TIMER_COMPARE_VALUE      HAPTIC_GPIO_TIMER->CCR2
 
-// Flysky Hall Stick
-#define FLYSKY_HALL_SERIAL_USART                 UART4
-#define FLYSKY_HALL_SERIAL_TX_GPIO               GPIO_PIN(GPIOB, 9)
-#define FLYSKY_HALL_SERIAL_RX_GPIO               GPIO_PIN(GPIOB, 8)
-#define FLYSKY_HALL_SERIAL_USART_IRQn            UART4_IRQn
-
-#define FLYSKY_HALL_SERIAL_DMA                   DMA1
-#define FLYSKY_HALL_DMA_Stream_RX                LL_DMA_STREAM_2
-#define FLYSKY_HALL_DMA_Channel                  LL_DMAMUX1_REQ_UART4_RX
-
 // LED Strip
 #define LED_STRIP_LENGTH                  26  // 6POS + 2 rings of 10
 #define BLING_LED_STRIP_START             6
@@ -518,6 +505,27 @@ TIM17:	ROTARY_ENCODER_TIMER
 #define AUX2_SERIAL_DMA_RX_CHANNEL          LL_DMAMUX1_REQ_USART3_RX
 #define AUX2_SERIAL_PWR_GPIO                GPIO_PIN(GPIOC, 13) // PC.13
 
+#if defined(BLUETOOTH)
+// Bluetooth
+#define STORAGE_BLUETOOTH
+#define BT_USART                            UART4
+#define BT_USART_IRQn                       UART4_IRQn
+#define BT_TX_GPIO                          GPIO_PIN(GPIOB, 9)
+#define BT_RX_GPIO                          GPIO_PIN(GPIOB, 8)
+#define BT_EN_GPIO                          GPIO_PIN(GPIOH, 11)
+#endif
+
+#if defined(FLYSKY_GIMBAL)
+// FlySky Hall Sticks
+#define FLYSKY_HALL_SERIAL_USART                 UART4
+#define FLYSKY_HALL_SERIAL_TX_GPIO               GPIO_PIN(GPIOB, 9)
+#define FLYSKY_HALL_SERIAL_RX_GPIO               GPIO_PIN(GPIOB, 8)
+#define FLYSKY_HALL_SERIAL_USART_IRQn            UART4_IRQn
+#define FLYSKY_HALL_SERIAL_DMA                   DMA1
+#define FLYSKY_HALL_DMA_Stream_RX                LL_DMA_STREAM_2
+#define FLYSKY_HALL_DMA_Channel                  LL_DMAMUX1_REQ_UART4_RX
+#endif
+
 // Touch
 #define TOUCH_I2C_BUS                   I2C_Bus_1
 #define TOUCH_INT_GPIO                  GPIO_PIN(GPIOE, 2) // PE.02