Description

MATEKSYS H743-WING V3 FLIGHT CONTROLLER

Matek’s H743 WING V3 Flight Controller arrives with new features and improvements over the V2 Version. This FC features a STM32H743VIT6 MCU running at 480MHz, dual gyros ICM42688-P(SPI1) & ICM42688-P(SPI4), a DPS310 (I2C2) barometer, and much more.

FC SPECIFICATION

• MCU: STM32H743VIT6, 480MHz , 1MB RAM, 2MB Flash
• IMU: ICM42688-P(SPI1) & ICM42688-P(SPI4)
• Baro: Infineon DPS310 (I2C2)
• OSD: AT7456E (SPI2)
• Blackbox: MicroSD card slot (SDIO)
• 7x Uarts (1,2,3,4,6,7,8) with built-in inversion.
• 13x PWM outputs(including “LED” pad)
• 2x I2C
• 1x CAN
• 6x ADC (VBAT, Current, RSSI, Analog AirSpeed, VB2, CU2)
• 3x LEDs for FC STATUS (Blue, Red) and 3.3V indicator(Red)
• 1x SPI3 breakout
• USB/Beep Extender with Type-C(USB2.0)
• Dual Camera Inputs switch
• 5V/9V(12V) for Camera/VTX power switch
• High-precision Current Sense (90A continuous, 220A peak)
• Battery Voltage Sensor: 1K:10K (Scale 1100 in INAV,  BATT_VOLT_MULT 11.0 in ArduPilot)
• ADC VB2 voltage divider: 1K:20K
• ADC AirSpeed voltage divider: 20K:20K
• Static power 160mA@5V

FC FIRMWARE

• ArduPilot(ChiBiOS): MATEKH743
• INAV: MATEKH743

PDB

• Input voltage range: 8~36V (3~8S LiPo) w/TVS protection
• 2x ESC power pads
• Current Senor: 220A,  3.3V ADC  (Scale 150 in INAV,  66.7 A/V in ArduPilot)
• Sense resistor: 90A continuous, 220A peak.

BEC 5V OUTPUT

• Designed for Flight controller, Receiver, OSD, Camera, Buzzer, 2812 LED_Strip, Buzzer, GPS module, AirSpeed
• Output 5.15  +/- 0.1V DC
• Continuous current 2 Amps,  3A Peak

BEC 9V /12V OUTPUT

• Designed for Video Transmitter, Camera, Gimbal ect.
• Continuous current 2 Amps,  3A Peak
• 12V option with Jumper pad

BEC Vx OUTPUT

• Designed for Servos
• Voltage adjustable, 5V Default, 6V or 7.2V via jumper
• Continuous current 8 Amps,  10A Peak

BEC 3.3V OUTPUT

• Linear Regulator
• Continuous current: 200mA

PHYSICAL:

• Mounting: 30.5 x 30.5mm, Φ4mm with Grommets Φ3mm
• Dimensions: 54 x 36 x 13 mm
• Weight: 30g with USB extender

PACKAGE CONTENTS:

• 1x H743-WING v3
• 1x USB(Type-C)/Beep (Passive buzzer) Extender
• 1x 20cm JST-SH-6P to JST-SH-6P cable for USB extender.
• 2x 20cm JST-GH-4P to JST-GH-4P cable for CAN & I2C port
• 1x Rubycon ZLH 35V 470uF capacitor
• Dupont 2.54 pins  (Board is shipped unsoldered)

INAV MAPPING

ARDUPILOT MAPPING

RC INPUT

–

ArduPilot Relay(PINIO)

• Camera-1 and Vsw On by default
• Make sure 2 cameras are set with identical video format, both PAL or both NTSC.

# GPIOs

• PD10 PINIO1 OUTPUT GPIO(81)   //Vsw pad power switch
• PD11 PINIO2 OUTPUT GPIO(82)   //Camera switch

# RCx_OPTION: RC input option

• 28   Relay On/Off
• 34   Relay2 On/Off
• 35   Relay3 On/Off
• 36   Relay4 On/Off

e.g.

• RELAY_PIN       81    //Vsw GPIO
• RC7_OPTION   28    //Relay On/Off, Use CH7 of Transmitter to switch Vsw
• RELAY_PIN2     82    //Camera switch GPIO
• RC8_OPTION   34    //Relay2 On/Off, Use CH8 of Transmitter to switch camera

or

• RELAY_PIN3       81    //Vsw GPIO
• RC9_OPTION     35    //Relay3 On/Off, Use CH9 of Transmitter to switch Vsw
• RELAY_PIN4       82    //Camera switch GPIO
• RC10_OPTION   36    //Relay4 On/Off, Use CH10 of Transmitter to switch camera

The configured feature will be triggered when the auxiliary switch’s pwm value becomes higher than 1800. It will be deactivated when the value falls below 1200.

Check the pwm value sent from the transmitter when the switch is high and low using the Mission Planner’s Initial Setup >> Mandatory Hardware >> Radio Calibration screen. If it does not climb higher than 1800 or lower than 1200, it is best to adjust the servo end points in the transmitter.

TIPS & NOTES

*** V1/V2/V3 share same ArduPilot/INAV Target ***

ArduPilot

• Current sensor range is 220A on H743-WING-V2/V3,  make sure you set the BATT_AMP_PERVLT to 66.7
• with ArduPilot 4.1 or higher, set INS_ENABLE_MASK to 7 or default 127.
• Pls download “plane 4.2.0 or newer” ArduPilot firmware for H743-WING-V3
• It is recommended to use STM32CubeProgrammer to erase MCU and upload firmware.  check this blog http://www.mateksys.com/?p=6905

INAV

• Current sensor range is 220A on H743-WING-V2/V3,  make sure you set the Current Meter Scale to 150
• H743-WING-V3 is not supported by INAV4.1 downloaded from configurator. pls download inav_4.1.0_MATEKH743_42688 from our website.
• Starting with INAV5.0, they will share the same firmware.

Others

• If the ESCs you are using don’t have enough capacitors integrated,  low ESR electrolytic capacitor is required for reducing ESC noise.