FC Specifications

• MCU: STM32H743VIT6, 480MHz , 1MB RAM, 2MB Flash
• Board V1.0 IMU: MPU6000 (SPI1) & ICM20602 (SPI4)
• Board V1.5 IMU: MPU6000 (SPI1) & ICM42605 (SPI4)
• Board V3 IMU: ICM42688-P (SPI1) & ICM42605 (SPI4)
• Baro: Infineon DPS310 (I2C2)
• OSD: AT7456E (SPI2)
• Blackbox: MicroSD card socket (SDIO)

• 5.5x Uarts (1,2,4,6,7, Rx8)
• 11x PWM outputs
• 2x I2C (I2C1/DA1 CL1 pads, no I2C2 breakout)
• 1x CAN (C-H, C-L pads)
• 5x ADC (VBAT, Current, RSSI, VB2, CU2)
• 3x LEDs for FC STATUS (Blue, Red) and 3.3V indicator(Red)
• 1x JST-SH1.0_8pin connector (Vbat/G/Curr/Rx8/S1/S2/S3/S4)

• Dual Camera Inputs switch
• 8V power ON/OFF switch

Power

• Vbat Input: 6.3~36V (2~8S LiPo)
• BEC: 5V 1.5A cont. (Max.2A)
• BEC: 8V 1.5A cont. (Max.2A),   8V outputs stable when Vbat>=10V,  8V outputs 80% of Vbat when Vbat< 10V
• LDO 3.3V: 200mA
• VB2 pad supports Max. 69V (voltage divider 1K:20K)
• Static power: 200mA@5V with Betaflight,  150mA@5V with ArduPilot

FC Firmware

• ArduPilot(ChiBiOS): MATEKH743
• BetaFlight: MATEKH743
• INAV: MATEKH743

Physical

• Mounting
  • 20 x 20mm/Φ3mm with Silicon Grommets
  • 20 x 20mm/Φ2mm with Silicon & Brass Grommets
• Dimensions:  36 x 28 x 6.5mm
• Weight: 7g

Including

• 1x H743-MINI
• 6x Silicon grommets M4 to M3
• 6x Brass grommets M3 to M2
• 1x JST-SH1.0_8pin cable, 5cm
• 2x JST-SH1.0_8pin connectors

• ArduPilot Firmware
  • https://firmware.ardupilot.org/Plane/stable/MatekH743/
  • https://firmware.ardupilot.org/Copter/stable/MatekH743/
  • Ardupilot_wiki  H7 will not initialize with Ardupilot firmware
• H743 is supported by INAV3.0.1 or higher.
• H743-MINI has betaflight firmware preloaded for QC
• BetaFlight:  Target MATEKH743 is supported since 4.3,  pls download BetaFlight firmware 4.2.x from our website.
• If you flash ArduPilot firmware via BetaFlight configurator.  there is a known issue that flash process will freeze at 50% if “full chip erase” is selected.   It is highly recommended to use STM32CubeProgrammer to erase MCU and upload firmware http://www.mateksys.com/?p=6905
• INAV: SD card and MSC mode for H743 is supported by INAV 4.0 or newer.

Known issue

• Motor 7 will not spin with BetaFlight 4.2.x and OCTO X8 mixer if RPM filter is enabled.   Pls set dshot_bidir = OFF,  or use latest BetaFlight 4.3.0

What is new on the H743-mini V3

• ICM42688-P+ICM42605 instead of MPU6000+ICM42605
• PWM 10 & 11 instead of PWM9 & 10(V1/V1.5)
• Other functions, layout and components are same as previous board version.
• H743-mini V3 has betaflight_4.3.0 preloaded for QC

ArduPilot

• H743-mini-V3 with ICM42688-P is supported by ArduPilot 4.2 or higher,
• ICM42688-P is defined as first IMU (IMU0) ,  ICM42605 is the 2nd (IMU1).
• with ArduPilot 4.2, set INS_ENABLE_MASK to 7 or default 127.
• It is recommended to use STM32CubeProgrammer to erase MCU and upload firmware.  check this blog http://www.mateksys.com/?p=6905

INAV

• H743-mini-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,  V1/V1.5/V3 will share the same firmware.

BetaFlight

• IMU ICM42688-p is supported by BetaFlight 4.3 or higher.
• icm42688-p is the first IMU(default), ICM42605 is the second IMU.
• Target MATEKH743 in BetaFlight 4.2.x list doesn’t support ICM426XX series, You need to flash it with BF4.3_RC or latest