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diff --git a/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/README.md b/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/README.md
new file mode 100644
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--- /dev/null
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+## PixPilot-C3 Flight Controller
+
+The PixPilot-C3 flight controller is sold by a range of resellers listed on the makeflyeasy(http://www.makeflyeasy.com)
+
+## Features
+
+• STM32F427VIT6 and STM32F103C8T6 microcontroller
+
+• two IMUs, two ICM42688-P(SPI)
+
+• Two barometers, BMP388(SPI)
+
+• builtin RAMTRON(SPI)
+
+• microSD card slot
+
+• 5 UARTs
+
+• USB(Type-C)
+
+• PPM, S.Bus & DSM input
+
+• 14 PWM outputs
+
+• tow I2C ports and two FDCAN ports
+
+• one S.Bus output
+
+• builtin Buzzer
+
+• builtin LED
+
+• two voltage & current monitoring
+
+• servo rail BEC independent power input for servos
+
+• external safety Switch
+
+## Pinout
+
+
+
+
+UART Mapping
+============
+
+ - SERIAL0 -> console (primary mavlink, usually USB)
+ - SERIAL1 -> USART2 (telem1, DMA-enabled)
+ - SERIAL2 -> USART3 (Telem2, DMA-enabled)
+ - SERIAL3 -> UART4 (GPS1)
+ - SERIAL4 -> UART8 (GPS2, DMA-enabled)
+ - SERIAL5 -> UART7 (USER)
+
+Connector pin assignments
+=========================
+
+TELEM1, TELEM2 ports
+--------------------
+
+
+
+
+ | Pin |
+ Signal |
+ Volt |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ TX (OUT) |
+ +3.3V |
+
+
+ | 3 |
+ RX (IN) |
+ +3.3V |
+
+
+ | 4 |
+ GND |
+ GND |
+
+
+
+
+I2C1, I2C2 ports
+----------------
+
+
+
+
+ | PIN |
+ SIGNAL |
+ VOLT |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ SCL |
+ +3.3V |
+
+
+ | 3 |
+ SDA |
+ +3.3V |
+
+
+ | 4 |
+ GND |
+ GND |
+
+
+
+
+CAN1, CAN2 ports
+----------------
+
+
+
+
+ | PIN |
+ SIGNAL |
+ VOLT |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ CAN_H |
+ +12V |
+
+
+ | 3 |
+ CAN_L |
+ +12V |
+
+
+ | 4 |
+ GND |
+ GND |
+
+
+
+
+Safety port
+----------------------
+
+
+
+
+ | PIN |
+ SIGNAL |
+ VOLT |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ LED |
+ +5V |
+
+
+ | 3 |
+ SAFKEY |
+ +5V |
+
+
+
+
+GPS1/I2C1, GPS2/I2C2 ports
+--------------------------
+
+
+
+
+ | PIN |
+ SIGNAL |
+ VOLT |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ TX |
+ +3.3V |
+
+
+ | 3 |
+ RX |
+ +3.3V |
+
+
+ | 4 |
+ SCL |
+ +3.3V |
+
+
+ | 5 |
+ SDA |
+ +3.3V |
+
+
+ | 6 |
+ GND |
+ GND |
+
+
+
+
+Serial5 port
+------------
+
+
+
+
+ | Pin |
+ Signal |
+ Volt |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ TX (OUT) |
+ +3.3V |
+
+
+ | 3 |
+ RX (IN) |
+ +3.3V |
+
+
+ | 4 |
+ GND |
+ GND |
+
+
+
+
+Power1, Power2 ports
+--------------------
+
+
+
+
+ | PIN |
+ SIGNAL |
+ VOLT |
+
+
+ | 1 |
+ VCC |
+ +5V |
+
+
+ | 2 |
+ VCC |
+ +5V |
+
+
+ | 3 |
+ CURRENT |
+ +3.3V |
+
+
+ | 4 |
+ VOLTAGE |
+ +3.3V |
+
+
+ | 5 |
+ GND |
+ GND |
+
+
+ | 6 |
+ GND |
+ GND |
+
+
+
+
+DSM port
+--------
+
+
+
+
+ | Pin |
+ Signal |
+ Volt |
+
+
+ | 1 |
+ VCC |
+ +3.3V |
+
+
+ | 2 |
+ RX |
+ +3.3V |
+
+
+ | 3 |
+ GND |
+ GND |
+
+
+
+
+RC Input
+--------
+
+All compatible RC protocols can be decoded by attaching the Receiver's output to the SBUS input pin next to the Servo/Output VCC input connector. Note that some protocols such as CRSF or FPort including telemetry, require connection to, and setup of, one of the UARTs instead of this pin.
+
+PWM Output
+----------
+
+The PixPilot-V3 supports up to 14 PWM outputs. First first 8 outputs (labelled S1 to S8) are controlled by a dedicated STM32F103 IO controller. These 8
+outputs support all PWM output formats, but not DShot.
+
+The remaining 6 outputs (labelled AUX1 to AUX6) are the "auxiliary"
+outputs. These are directly attached to the STM32F427 and support all
+PWM protocols as well as DShot.
+
+All 14 PWM outputs have GND on the top row, 5V on the middle row and
+signal on the bottom row.
+
+The 8 main PWM outputs are in 3 groups:
+
+ - PWM 1 and 2 in group1
+ - PWM 3 and 4 in group2
+ - PWM 5, 6, 7 and 8 in group3
+
+The 6 auxiliary PWM outputs are in 2 groups:
+
+ - PWM 1, 2, 3 and 4 in group1
+ - PWM 5 and 6 in group2
+
+Channels within the same group need to use the same output rate. If
+any channel in a group uses DShot then all channels in the group need
+to use DShot.
+
+Battery Monitor Settings
+========================
+
+These should already be set by default. However, if lost or changed:
+
+Enable Battery monitor with these parameter settings :
+
+:ref:`BATT_MONITOR` =4
+
+Then reboot.
+
+:ref:`BATT_VOLT_PIN` 2
+
+:ref:`BATT_CURR_PIN` 3
+
+:ref:`BATT_VOLT_MULT` 18.0
+
+:ref:`BATT_AMP_PERVLT` 24.0
+
+:ref:`BATT2_VOLT_PIN` 14
+
+:ref:`BATT2_CURR_PIN` 13
+
+:ref:`BATT2_VOLT_MULT` 18.0
+
+:ref:`BATT2_AMP_PERVLT` 24.0
+
+DroneCAN capability
+===================
+There are 2 CAN ports which allow connecting two independant CAN bus outputs. Each of these can have multiple CAN peripheral devices connected.
+
+Where to Buy
+============
+
+`makeflyeasy `_
+
+
+[copywiki destination="plane,copter,rover,blimp"]
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/hwdef-bl.dat
new file mode 100644
index 0000000000..f0486e5b9c
--- /dev/null
+++ b/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/hwdef-bl.dat
@@ -0,0 +1,71 @@
+# MCU class and specific type
+MCU STM32F4xx STM32F427xx
+
+# board ID for firmware load
+APJ_BOARD_ID 1140
+
+# crystal frequency
+OSCILLATOR_HZ 24000000
+
+# ChibiOS system timer
+STM32_ST_USE_TIMER 5
+
+# flash size
+FLASH_SIZE_KB 2048
+
+# location of application code
+FLASH_BOOTLOADER_LOAD_KB 16
+
+# bootloader loads at start of flash
+FLASH_RESERVE_START_KB 0
+
+# baudrate to run bootloader at on uarts
+define BOOTLOADER_BAUDRATE 115200
+
+# uarts and USB to run bootloader protocol on
+SERIAL_ORDER OTG1 USART2 USART3 UART7
+
+# this is the pin that senses USB being connected. It is an input pin
+# setup as OPENDRAIN
+PA9 VBUS INPUT OPENDRAIN
+
+# now we define the pins that USB is connected on
+PA11 OTG_FS_DM OTG1
+PA12 OTG_FS_DP OTG1
+
+# these are the pins for SWD debugging with a STlinkv2 or black-magic probe
+PA13 JTMS-SWDIO SWD
+PA14 JTCK-SWCLK SWD
+
+# Another USART, this one for telem1
+PD5 USART2_TX USART2
+PD6 USART2_RX USART2
+PD3 USART2_CTS USART2
+PD4 USART2_RTS USART2
+
+# the telem2 USART, also with RTS/CTS available
+# USART3 serial3 telem2
+PD8 USART3_TX USART3
+PD9 USART3_RX USART3
+PD11 USART3_CTS USART3
+PD12 USART3_RTS USART3
+
+# UART7 maps to uartF in the HAL (serial5 in SERIALn_ parameters)
+PE7 UART7_RX UART7
+PE8 UART7_TX UART7
+
+# define a LED
+PE12 LED_BOOTLOADER OUTPUT
+define HAL_LED_ON 1
+
+# we need to tell HAL_ChibiOS/Storage.cpp how much storage is
+# available (in bytes)
+define HAL_STORAGE_SIZE 16384
+
+# Add CS pins to ensure they are high in bootloader
+PC14 BARO_EXT_CS CS
+PE4 42688_EXT_CS CS
+PC2 42688_CS CS
+PD7 BARO_CS CS
+PC1 MAG_CS CS
+PB1 SDCARD_CS CS
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/hwdef.dat
new file mode 100644
index 0000000000..8bec6df8ee
--- /dev/null
+++ b/libraries/AP_HAL_ChibiOS/hwdef/PixPilot-C3/hwdef.dat
@@ -0,0 +1,227 @@
+# MCU class and specific type
+MCU STM32F4xx STM32F427xx
+
+# board ID for firmware load
+APJ_BOARD_ID 1140
+
+# crystal frequency
+OSCILLATOR_HZ 24000000
+
+# ChibiOS system timer
+STM32_ST_USE_TIMER 5
+
+# flash size
+FLASH_SIZE_KB 2048
+
+env OPTIMIZE -O2
+
+# serial port for stdout, disabled so console is on USB
+#STDOUT_SERIAL SD7
+#STDOUT_BAUDRATE 57600
+
+# order of I2C buses
+I2C_ORDER I2C1 I2C2
+
+# now the UART order. These map to the hal.uartA to hal.uartF
+# objects. If you use a shorter list then HAL_Empty::UARTDriver
+# objects are substituted for later UARTs, or you can leave a gap by
+# listing one or more of the uarts as EMPTY
+# 1) SERIAL0: console (primary mavlink, usually USB)
+# 2) SERIAL3: primary GPS
+# 3) SERIAL1: telem1
+# 4) SERIAL2: telem2
+# 5) SERIAL4: GPS2
+# 6) SERIAL5: extra UART (usually RTOS debug console)
+
+# order of UARTs (and USB)
+SERIAL_ORDER OTG1 USART2 USART3 UART4 UART8 UART7
+
+# UART for IOMCU
+IOMCU_UART USART6
+
+# UART4 is GPS
+PA0 UART4_TX UART4 NODMA
+PA1 UART4_RX UART4 NODMA
+PA2 BATT_VOLTAGE_SENS ADC1
+PA3 BATT_CURRENT_SENS ADC1
+PA4 VDD_5V_SENS ADC1 SCALE(2)
+
+# SPI1 is sensors bus
+PA5 SPI1_SCK SPI1
+PA6 SPI1_MISO SPI1
+PA7 SPI1_MOSI SPI1
+
+PA9 VBUS INPUT
+
+PA11 OTG_FS_DM OTG1
+PA12 OTG_FS_DP OTG1
+
+PA13 JTMS-SWDIO SWD
+PA14 JTCK-SWCLK SWD
+
+# PWM output for buzzer
+PA15 TIM2_CH1 TIM2 GPIO(77) ALARM
+
+PB2 BOOT1 INPUT
+
+PB8 I2C1_SCL I2C1
+PB9 I2C1_SDA I2C1
+
+PB10 I2C2_SCL I2C2
+PB11 I2C2_SDA I2C2
+
+
+# SPI2 is FRAM
+PB13 SPI2_SCK SPI2
+PB14 SPI2_MISO SPI2
+PB15 SPI2_MOSI SPI2
+
+PB12 CAN2_RX CAN2
+PB6 CAN2_TX CAN2
+
+
+PC0 VBUS_nVALID INPUT PULLUP
+PC3 AUX_POWER ADC1 SCALE(1)
+PC4 AUX_ADC2 ADC1 SCALE(1)
+
+# USART6 to IO
+PC6 USART6_TX USART6
+PC7 USART6_RX USART6
+
+
+PD0 CAN1_RX CAN1
+PD1 CAN1_TX CAN1
+
+# USART2 serial2 telem1
+PD5 USART2_TX USART2
+PD6 USART2_RX USART2
+
+# USART3 serial3 telem2
+PD8 USART3_TX USART3
+PD9 USART3_RX USART3
+
+PD10 FRAM_CS CS
+
+
+PD13 TIM4_CH2 TIM4 PWM(5) GPIO(54)
+PD14 TIM4_CH3 TIM4 PWM(6) GPIO(55)
+
+
+# UART8 serial4 FrSky
+PE0 UART8_RX UART8
+PE1 UART8_TX UART8
+# allow this uart to be inverted for transmit under user control
+# the polarity is the value to use on the GPIO to change the polarity
+# to the opposite of the default
+PA10 UART8_TXINV OUTPUT HIGH GPIO(78) POL(0)
+
+PE3 VDD_3V3_SENSORS_EN OUTPUT HIGH
+
+
+# Now setup SPI bus4.
+PE2 SPI4_SCK SPI4
+PE5 SPI4_MISO SPI4
+PE6 SPI4_MOSI SPI4
+
+# start peripheral power off, then enable after init
+# this prevents a problem with radios that use RTS for
+# bootloader hold
+
+PE10 VDD_5V_HIPOWER_nOC INPUT PULLUP
+PE15 VDD_5V_PERIPH_nOC INPUT PULLUP
+
+# UART7 is debug
+PE7 UART7_RX UART7 NODMA
+PE8 UART7_TX UART7 NODMA
+
+# SPI1 CS pins
+PE4 42688_EXT_CS CS
+PC14 BARO_EXT_CS CS
+PC2 42688_CS CS
+PD7 BARO_CS CS
+PC1 MAG_CS CS
+
+PE9 TIM1_CH1 TIM1 PWM(4) GPIO(53)
+PE11 TIM1_CH2 TIM1 PWM(3) GPIO(52)
+PE13 TIM1_CH3 TIM1 PWM(2) GPIO(51)
+PE14 TIM1_CH4 TIM1 PWM(1) GPIO(50)
+
+# Power flag pins: these tell the MCU the status of the various power
+# supplies that are available. The pin names need to exactly match the
+# names used in AnalogIn.cpp.
+PB5 VDD_BRICK_nVALID INPUT PULLUP
+PG5 VDD_BRICK2_nVALID INPUT PULLUP
+
+PA8 LED_RED OUTPUT OPENDRAIN GPIO(11) HIGH
+PB1 LED_GREEN OUTPUT OPENDRAIN GPIO(12) HIGH
+PC15 LED_BLUE OUTPUT OPENDRAIN GPIO(13) HIGH
+define HAL_GPIO_LED_ON 0
+define HAL_GPIO_LED_OFF 1
+
+define HAL_GPIO_A_LED_PIN 11
+define HAL_GPIO_B_LED_PIN 12
+define HAL_GPIO_C_LED_PIN 13
+
+define HAL_HAVE_PIXRACER_LED
+
+# SPI device table
+SPIDEV BMP388 SPI1 DEVID3 BARO_CS MODE3 20*MHZ 20*MHZ
+SPIDEV BMP388_ext SPI4 DEVID2 BARO_EXT_CS MODE3 20*MHZ 20*MHZ
+SPIDEV ICM42688_ext SPI4 DEVID5 42688_EXT_CS MODE3 2*MHZ 4*MHZ
+SPIDEV ICM42688 SPI1 DEVID6 42688_CS MODE3 2*MHZ 4*MHZ
+SPIDEV ramtron SPI2 DEVID10 FRAM_CS MODE3 8*MHZ 8*MHZ
+
+
+define HAL_DEFAULT_INS_FAST_SAMPLE 3
+
+IMU Invensensev3 SPI:ICM42688 ROTATION_NONE
+IMU Invensensev3 SPI:ICM42688_ext ROTATION_NONE
+
+
+BARO BMP388 SPI:BMP388
+BARO BMP388 SPI:BMP388_ext
+
+
+#COMPASS IST8310 I2C:0:0x0E false ROTATION_ROLL_180_YAW_270
+define HAL_PROBE_EXTERNAL_I2C_COMPASSES
+define HAL_I2C_INTERNAL_MASK 0
+
+
+define HAL_BOARD_LOG_DIRECTORY "/APM/LOGS"
+define HAL_BOARD_TERRAIN_DIRECTORY "/APM/TERRAIN"
+
+define HAL_STORAGE_SIZE 16384
+define HAL_WITH_RAMTRON 1
+
+# enable FAT filesystem support (needs a microSD defined via SDIO)
+define HAL_OS_FATFS_IO 1
+
+PC8 SDIO_D0 SDIO
+PC9 SDIO_D1 SDIO
+PC10 SDIO_D2 SDIO
+PC11 SDIO_D3 SDIO
+PC12 SDIO_CK SDIO
+PD2 SDIO_CMD SDIO
+
+# battery setup
+define HAL_BATT_VOLT_PIN 2
+define HAL_BATT_CURR_PIN 3
+define HAL_BATT_VOLT_SCALE 18
+define HAL_BATT_CURR_SCALE 24
+
+define HAL_BATT2_VOLT_PIN 14
+define HAL_BATT2_CURR_PIN 13
+define HAL_BATT2_VOLT_SCALE 18.0
+define HAL_BATT2_CURR_SCALE 24.0
+
+PB4 PWM_VOLT_SEL OUTPUT HIGH GPIO(3)
+define HAL_GPIO_PWM_VOLT_PIN 3
+define HAL_GPIO_PWM_VOLT_3v3 1
+
+
+
+# We can't share the IO UART (USART6).
+DMA_NOSHARE USART6_TX USART6_RX ADC1
+DMA_PRIORITY USART6*
+
+ROMFS io_firmware.bin Tools/IO_Firmware/iofirmware_lowpolh.bin