Matek H743 Wing V3 Ardupilot Flight Controller

H743-WING v3 is a refreshed design of the popular H743 Wing flight controller from Matek ICM42605, some revised connectors and component layout to make the board even better than before.  Best of all this flight controller can be used with Betaflight, Inav and Ardupilot.

Update to V3

H743-WING-V2(Purple PCB) has been updated to V3(Blue PCB) since end Apr.2022.
IMU ICM42688-P(V3)+ICM42605 instead of MPU6000(V2)+ICM42605
Same functions, layout, wiring schematic & I/O mapping.

Resources

• Ardupilot Wiki Instructions
• H743-WING-V2_Manual (including Pinouts and Wiring Diagrams)

Specifications

FC Specifications

• Input Voltage: 3-8S LiPo
• MCU: STM32H743VIT6
• Gyro: ICM42688-P / ICM42605
• OSD: Yes
• UARTs: 8 Sets
• ESC Connections: Yes
• Firmware: MATEKH743
• BEC: 3.3V, 5V, 9V, 12V
• Current Sensor: Yes
• Buzzer: Yes
• Barometer: Yes
• Black Box: Micro SD
• Stack Size: Not Stack Mounted
• Dimensions: 54x36x13mm
• Weight: 30g

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

Included

• 1x H743-WING
• 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)

Other Notes

ArduPilot

• H743-WING-V3 with ICM42605 is supported by ArduPilot 4.1 latest or newer,
• ICM42605 is defined as first IMU (IMU0) ,  MPU6000 is the 2nd (IMU1).
• Current sensor range is 220A on H743-WING-V2,  make sure you set the BATT_AMP_PERVLT to 66.7
• It is recommended to use STM32CubeProgrammer to erase MCU and upload firmware.
• Known issue and solution,  H7 will not initialize with Ardupilot firmware

INAV

• Current sensor range is 220A on H743-WING-V2,  make sure you set the Current Meter Scale to 150
• IMU ICM42605 is supported by INAV3.0.2 or higher.
• MPU6000 is the first IMU(IMU0, default), ICM42605 is the 3rd IMU (IMU2) in INAV MATEKH743 target.
• If you want to try the new ICM-4 series of IMUs.  download inav_3.0.2_MATEKH743.hex
  • set gyro_to_use = 2
  • set acc_hardware = icm42605
  • save
• If you stick with MPU6000 only, H743-WING-V2 works with stable version 3.0.x downloaded from configurator also.
• Known issue, SD card and MSC mode for H743 is not implemented.

Others

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