diff --git a/mLRS/Common/hal/esp/esp-device_conf.h b/mLRS/Common/hal/esp/esp-device_conf.h
index 996b73503..603cb06a5 100644
--- a/mLRS/Common/hal/esp/esp-device_conf.h
+++ b/mLRS/Common/hal/esp/esp-device_conf.h
@@ -312,3 +312,10 @@
   #define DEVICE_HAS_SX128x
   #define FREQUENCY_BAND_2P4_GHZ
 #endif
+
+#ifdef TX_ELRS_SENDUWING_INTERNAL_2400_ESP32
+  #define DEVICE_NAME "SW Int 2.4G"
+  #define DEVICE_IS_TRANSMITTER
+  #define DEVICE_HAS_SX128x
+  #define FREQUENCY_BAND_2P4_GHZ
+#endif
diff --git a/mLRS/Common/hal/esp/esp-hal.h b/mLRS/Common/hal/esp/esp-hal.h
index 7080df900..2c421eab9 100644
--- a/mLRS/Common/hal/esp/esp-hal.h
+++ b/mLRS/Common/hal/esp/esp-hal.h
@@ -170,3 +170,6 @@
 #include "tx-hal-flysky-int-pa01-2400-esp32s3.h"
 #endif
 
+#ifdef TX_ELRS_SENDUWING_INTERNAL_2400_ESP32
+#include "tx-hal-senduwing-int-2400-esp32.h"
+#endif
diff --git a/mLRS/Common/hal/esp/tx-hal-senduwing-int-2400-esp32.h b/mLRS/Common/hal/esp/tx-hal-senduwing-int-2400-esp32.h
new file mode 100644
index 000000000..dda653778
--- /dev/null
+++ b/mLRS/Common/hal/esp/tx-hal-senduwing-int-2400-esp32.h
@@ -0,0 +1,173 @@
+//*******************************************************
+// Copyright (c) MLRS project
+// GPL3
+// https://www.gnu.org/licenses/gpl-3.0.de.html
+//*******************************************************
+// hal
+//*******************************************************
+
+/*
+  Flashing ESP8285 backpack WiFi bridge:
+  - Board: Generic ESP8266 Module, define LED_IO 16
+  - First flash can be via web browser/ELRS WiFi
+  - Need ELRS version of esptool from https://github.com/ExpressLRS/Backpack
+  - Power up radio, plug in USB, select VCP
+  - On Linux, run something like "Backpack/python/external/esptool/esptool.py --passthrough --port /dev/ttyACM0 --baud 115200 --before etx --after hard_reset write_flash 0x0000 ~/Arduino/build/mlrs-wireless-bridge-esp8266.ino.bin
+
+  Flashing ESP32 module:
+  - Need ELRS python folder from https://github.com/ExpressLRS/ExpressLRS
+  - Power up radio, plug in USB, select VCP
+  - On Linux, run something like "python ExpressLRS/src/python/ETXinitPassthrough.py"
+  - Use Visual Studio Code or esptool (or maybe web flasher?) to flash via ACM serial port.
+
+  Set the Internal RF to CRSF 400k baud in SYS->HARDWARE on EdgeTx radio
+*/
+
+//-------------------------------------------------------
+// ESP32, SenduWing Tx, Internal SX1280 2400, for H17
+//-------------------------------------------------------
+
+#define DEVICE_HAS_JRPIN5
+#define DEVICE_HAS_SINGLE_LED
+#define DEVICE_HAS_NO_SERIAL
+#define DEVICE_HAS_NO_COM
+#define DEVICE_HAS_ESP_WIFI_BRIDGE_ESP8266
+#define DEVICE_HAS_ESP_WIFI_BRIDGE_CONFIGURE
+#define DEVICE_HAS_ESP_WIFI_BRIDGE_W_PASSTHRU_VIA_JRPIN5
+#define DEVICE_HAS_NO_DEBUG
+
+
+//-- UARTS
+// UARTB = serial port
+// UARTC (or USB) = com (CLI) port
+// UARTD = serial2 port or wireless bridge port
+// UART  = JR bay pin5, full duplex CRSF serial connection to radio - code still calls it JR bay pin5
+// UARTE = in port, SBus or whatever
+// UARTF or SWUART = debug port
+
+#define UARTD_USE_SERIAL // serial2 or wireless bridge
+#define UARTD_BAUD                TX_SERIAL_BAUDRATE
+#define UARTD_USE_TX_IO           IO_P22
+#define UARTD_USE_RX_IO           IO_P21
+#define UARTD_TXBUFSIZE           TX_SERIAL_TXBUFSIZE
+#define UARTD_RXBUFSIZE           TX_SERIAL_RXBUFSIZE
+
+#define UART_USE_SERIAL1 // full duplex CRSF/MBridge (JR pin5)
+#define UART_BAUD                 400000
+#define UART_USE_TX_IO            IO_P1
+#define UART_USE_RX_IO            IO_P3
+#define UART_TXBUFSIZE            0 // TX_SERIAL_TXBUFSIZE
+#define UART_RXBUFSIZE            0 // TX_SERIAL_RXBUFSIZE // 512
+
+#define JR_PIN5_FULL_DUPLEX       // internal module
+
+#define UARTF_USE_SERIAL2 // debug
+#define UARTF_BAUD                115200
+#define UARTF_USE_TX_IO           -1 // Or choose another unused pin/test pad
+#define UARTF_USE_RX_IO           -1
+#define UARTF_TXBUFSIZE           512
+
+
+//-- SX1: SX12xx & SPI
+
+#define SPI_CS_IO                 IO_P25
+#define SPI_MISO                  IO_P14
+#define SPI_MOSI                  IO_P27
+#define SPI_SCK                   IO_P26
+#define SPI_FREQUENCY             18000000L
+#define SX_RESET                  IO_P4
+#define SX_DIO                    IO_P13
+#define SX_BUSY                   IO_P15
+#define SX_TX_EN                  IO_P32
+#define SX_RX_EN                  IO_P33
+
+IRQHANDLER(void SX_DIO_EXTI_IRQHandler(void);)
+
+void sx_init_gpio(void)
+{
+    gpio_init(SX_RESET, IO_MODE_OUTPUT_PP_HIGH);
+    gpio_init(SX_DIO, IO_MODE_INPUT_ANALOG);
+    gpio_init(SX_BUSY, IO_MODE_INPUT_PU);
+    gpio_init(SX_TX_EN, IO_MODE_OUTPUT_PP_LOW);
+    gpio_init(SX_RX_EN, IO_MODE_OUTPUT_PP_LOW);
+}
+
+IRAM_ATTR bool sx_busy_read(void) { return (gpio_read_activehigh(SX_BUSY)) ? true : false; }
+
+IRAM_ATTR void sx_amp_transmit(void)
+{
+    gpio_low(SX_RX_EN);
+    gpio_high(SX_TX_EN);
+}
+
+IRAM_ATTR void sx_amp_receive(void)
+{
+    gpio_low(SX_TX_EN);
+    gpio_high(SX_RX_EN);
+}
+
+void sx_dio_enable_exti_isr(void) { attachInterrupt(SX_DIO, SX_DIO_EXTI_IRQHandler, RISING); }
+void sx_dio_init_exti_isroff(void) { detachInterrupt(SX_DIO); }
+IRAM_ATTR void sx_dio_exti_isr_clearflag(void) {}
+
+
+//-- Button
+
+void button_init(void) {}
+IRAM_ATTR bool button_pressed(void) { return false; }
+
+
+//-- LEDs
+
+//#define LED_RED                   -1
+
+void leds_init(void)
+{
+    //gpio_init(LED_RED, IO_MODE_OUTPUT_PP_HIGH);
+}
+
+IRAM_ATTR void led_red_off(void) { }
+IRAM_ATTR void led_red_on(void) { }
+IRAM_ATTR void led_red_toggle(void) { }
+
+
+//-- ESP32 Wifi Bridge
+
+#define ESP_RESET                 IO_P20 // backpack_en
+#define ESP_GPIO0                 IO_P19 // backpack_boot inverted?
+#define ESP_BOOTPIN               IO_P0  // will always be IO_P0
+
+uint8_t esp_bootpin()
+{
+    return gpio_read_activelow(ESP_BOOTPIN);
+}
+
+void esp_init(void)
+{
+    // no need to configure ESP_BOOTPIN which will always be IO_P0 and is pull-up by default
+    gpio_init(ESP_GPIO0, IO_MODE_OUTPUT_PP_LOW); // high -> esp will start in bootloader mode
+    gpio_init(ESP_RESET, IO_MODE_OUTPUT_PP_LOW); // low -> esp is in reset
+}
+
+IRAM_ATTR void esp_reset_high(void) { gpio_high(ESP_RESET); }
+IRAM_ATTR void esp_reset_low(void) { gpio_low(ESP_RESET); }
+
+IRAM_ATTR void esp_gpio0_high(void) { gpio_low(ESP_GPIO0); }
+IRAM_ATTR void esp_gpio0_low(void) { gpio_high(ESP_GPIO0); }
+
+
+//-- POWER
+// Need to confirm all of this!
+
+#define POWER_GAIN_DBM            26 // gain of a PA stage if present
+#define POWER_SX1280_MAX          SX1280_POWER_0_DBM  // maximum allowed sx power
+#define POWER_USE_DEFAULT_RFPOWER_CALC
+
+#define RFPOWER_DEFAULT           0 // index into rfpower_list array
+
+const rfpower_t rfpower_list[] = {
+    { .dbm = POWER_10_DBM, .mW = 10 },
+    { .dbm = POWER_17_DBM, .mW = 50 },
+    { .dbm = POWER_20_DBM, .mW = 100 },
+    { .dbm = POWER_24_DBM, .mW = 250 },
+};
diff --git a/platformio.ini b/platformio.ini
index 0169aa3a0..94fc6a6bd 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -563,3 +563,14 @@ build_flags =
   -D TX_ELRS_FLYSKY_INTERNAL_PA01_2400_ESP32S3
 extra_scripts = tools/vscode/build_env_etx.py
 
+
+[env:tx-senduwing-internal-2400]      ; H17
+extends = env_common_tx_esp32
+board = esp32dev
+build_src_filter =
+  ${env_common_tx_esp32.build_src_filter}
+  +<modules/sx12xx-lib/src/sx128x.cpp>
+build_flags =
+  ${env_common_tx_esp32.build_flags}
+  -D TX_ELRS_SENDUWING_INTERNAL_2400_ESP32
+extra_scripts = tools/vscode/build_env_etx.py