MicoAir H743 Flight Controller supports Ardupilot/PX4/INAV/Betaflight

    High performance H743 Flight controller, with dual IMU and compass sensor built-in, supports Ardupilot/PX4/INAV/Betaflight

• Wide Compatibility: Supports all major open-source flight control systems, including Ardupilot, PX4, and Betaflight, with official firmware support. INAV will be officially supported from version 8.0, ensuring your flight control system stays up-to-date with the latest technology.
• High-Precision Dual IMU Sensors: Equipped with dual IMU and an integrated compass, providing higher-quality IMU data for navigation tasks such as waypoint flying or hovering, significantly improving the accuracy of navigation and positioning in complex environments.
• DJI O3 FPV Support: Specifically designed compatibility with the DJI O3 Air Unit, supporting HD video transmission and providing a smooth first-person view (FPV) flying experience, meeting professional-grade FPV demands.
• Rich Expansion Interfaces: Features 7 UARTs, 10 PWM outputs, USB Type-C, and support for CAN and I2C buses, allowing connectivity to a variety of external devices such as onboard computers and optical flow laser sensors, offering extensive expandability.
• High-Performance MOSFET Devices ESC: The Electronic Speed Controller uses 40V 165A RDS=1.1mR MOSFET devices, which are key to enhancing ESC performance. An RDS(ON) as low as 1.1mR means minimal internal resistance during current flow, reducing energy loss, increasing efficiency, and resulting in lower heat generation and better load capacity. Especially during long periods of high load, this significantly lowers failure rates and extends lifespan.
• User-Friendly Design and Support: Features an all-connector design to reduce soldering work and improve connection reliability. Additionally, we offer detailed usage tutorials and continuously update settings and optimization guides for different firmware, helping users get started with ease.

Ardupilot

MicoAir743 flight controller  is officially supported by Ardupilot starting from version 4.6, you can update the firmware through Mission Planner or download all the firmware files(Copter/Heli/Plane/Rover/etc) here:

ArduPilot Firmware Download

 

Also you can use the online firmware builder provided by Ardupilot to customize your firmware for MicoAir743:

ArduPilot Custom Firmware Builder

Old version(v4.5.1) firmware can be download here:

MicoAir743/Firmware/Ardupilot(v4.5.1)

PX4

MicoAir743 flight controller is officially supported by PX4 from version 1.15.0 .

 

You can also download the firmware and bootloader build by us (1.13.3&1.14.0).

MicoAir743 PX4 Firmware

Betaflight

 

MicoAir743 flight controller is officially supported by Betaflight  from version 4.5.0.

INAV

 

MicoAir743 is officially supported by INAV from version 8.0.0.

You can also download the old version firmware build by us.

MicoAir743 INAV Firmware

 

Specifications

• MCU: STM32H743VIT6, 480MHz, 2MB Flash
• IMU: BMI088/BMI270
• Baro: DPS310
• Compass: IST8310
• OSD: AT7456E
• MicroSD Card Slot
• 7x UART
• 10x PWM
• 1x CAN
• 1x I2C
• 1x SWD
• 2x ADC (VBAT, Current)
• USB Type-C
• BEC 5V 3A output (for controller, receiver, GPS, optical flow or other devices)
• BEC 9V 3A output (for video transmitter, camera)

UART Mapping (Ardupilot)

• SERIAL0 -> USB
• SERIAL1 -> UART1 (MAVLink2, DMA-enabled)
• SERIAL2 -> UART2 (VTX-HD, DMA-enabled)
• SERIAL3 -> UART3 (GPS, DMA-enabled)
• SERIAL4 -> UART4 (MAVLink2, DMA-enabled)
• SERIAL5 -> UART6 (RCIN, DMA–enabled)
• SERIAL6-> UART7 (ESC Telemetry, DMA-enabled)
• SERIAL7 -> UART8 (DMA–enabled)

UART Mapping (PX4)

• TEL1 -> UART1
• TEL2 -> UART2
• GPS1 -> UART3 
• TEL3-> UART4
• RC -> UART6
• ESC -> UART7
• TEL4 -> UART8

RC Input (Ardupilot)

The default RC input is configured on the UART6. The SBUS pin is inverted and connected to RX6. Non SBUS, single wire serial inputs can be directly tied to RX6 if SBUS pin is left unconnected. RC could be applied instead at a different UART port such as UART2, UART4 or UART8, and set the protocol to receive RC data: SERIALn_PROTOCOL=23 and change SERIAL5 _Protocol to something other than ’23’.

 

OSD Support  (Ardupilot)

The MicoAir743 supports OSD using OSD_TYPE 1 (MAX7456 driver) and OSD_TYPE 5 (MSP_DISPLAYPORT).

 

VTX Support

The SH1.0-6P connector supports a DJI Air Unit / HD VTX connection. Protocol defaults to DisplayPort. Pin 1 of the connector is 9v so be careful not to connect this to a peripheral requiring 5v.

 

PWM Output

The MicoAir743 supports up to 10 PWM outputs.

Channels 1-10 support DShot.

Channels 1-8 support bi-directional DShot.

(currently PX4&INAV not support BDShot function)

PWM output share grouped and every group must use the same output protocol:

1,2,3,4 are group 1

5, 6 are group 2

7,8,9,10 are group 3

 

Battery Monitoring

The board has a internal voltage sensor and connections on the ESC connector for an external current sensor input.

The voltage sensor can handle up to 6S LiPo batteries.

The default battery parameters(for Ardupilot) are:

• BATT_VOLT_PIN 10
• BATT_CURR_PIN 11
• BATT_VOLT_MULT 21.2
• BATT_CURR_SCALE 40.2

Compass

The MicoAir743 has a built-in compass sensor (IST8310), and you can also attach an external compass using I2C on the SDA and SCL connector.

Physical

• Mounting: 30.5 x 30.5mm, Φ4mm
• Dimensions: 36 x 36 x 8 mm
• Weight: 9g
• 3D Model (step)

Specifications(ESC)

• Input Voltage Range: 2-6S
• Maximum Continuous Working Current: 50A
• Current Sensor: Yes
• ESC Firmware: BlueJay 48K
• Firmware Version: v0.19.2
• Control Signal Support: DShot150/300/600
• Supports Bidirectional Dshot, Speed Feedback
• Fixed Mounting Holes:
• M4-30.5*30.5mm
• M3-20*20mm
• MOSFET Specifications: 40V 165A RDS=1.1mR

Package List (Only FC）:

• MicoAir H743 Flight Controller * 1
• 4G TF Card *1
• Connecting Wiring *7
• Rubber Mat * 4

Package List (Flight Stack(FC&ESC):

• MicoAir H743 Flight Controller * 1
• 4G TF Card *1
• MicoAir 4 in 1 ESC * 1
• 12AWG Wiring *2
• ESC Signal Wiring *1
• Connecting Wiring *7
• Capacitance *1
• XT60 Plug * 1
• Rubber Mat * 8