Matek H7A3 Wing Ardupilot Flight Controller
£78.99
FLIGHT CONTROLLER H7A3-WING
STM32H7A3RIT6 280MHz, ICM42688P, SPL06-001, OSD, 6x UARTs, 1x I2C, 1xCAN, 11x PWM outputs, BEC5V, BEC9V
The Matek H7A3 Wing Flight Controller is a powerhouse autopilot solution built for fixed-wing aircraft, VTOL platforms, and complex UAV builds that demand high output counts, rock-solid sensing, and serious power handling. Designed to run ArduPilot firmware , it combines an ultra-fast STM32H7A3 processor with a modern ICM42688P IMU, SPL06 barometer, onboard OSD, and MicroSD blackbox logging—making it ideal for long-range, survey, mapping, and experimental aircraft projects.
With support for 3–6S LiPo input, three independent high-current BEC rails, and an integrated digital power monitor rated for up to 164A burst, the H7A3 Wing removes the need for external PDBs or current sensors in most builds. Eleven PWM outputs, six UARTs with inversion, CAN, I2C, and multiple ADC inputs give you huge flexibility for servos, ESCs, GPS, telemetry radios, airspeed sensors, gimbals, and digital video systems.
The board uses a multi-layer stacked design with cover plates and includes a USB-C / buzzer extender for easy bench setup. Standard 30.5 × 30.5 mm mounting keeps installation straightforward in most airframes.
Features
- STM32H7A3 Cortex-M7 MCU running at 280 MHz
- Optimised for ArduPlane / ArduCopter platforms
- ICM42688P gyro + SPL06-001 barometer
- AT7456E analog OSD + MicroSD blackbox logging
- Integrated I2C digital current & voltage sensor (no calibration required)
- Up to 164A burst current monitoring
- 11 PWM outputs for servos or ESCs
- 6 UARTs with built-in inversion
- CAN and I2C ports via JST-GH connectors
- Triple-rail power system for avionics, video and servos
- Standard 30.5 × 30.5 mm mounting pattern
- USB-C extender with passive buzzer included
- FC Firmware
- ArduPilot: MATEKH7A3 (4.6 or newer)
- ArduPlane https://firmware.ardupilot.org/Plane/beta/MatekH7A3/
- ArduCopter https://firmware.ardupilot.org/Copter/beta/MatekH7A3/
- Flashing with STM32CubeProgrammer
Specifications
- MCU: STM32H7A3RIT6, 280MHz Cortex-M7, 1.4MB RAM, 2MB Flash
- IMU: ICM42688P
- Baro: SPL06-001
- OSD: AT7456E
- Blackbox: MicroSD socket
- I2C digital power monitor
- USB/Beep Extender with Type-C(USB2.0)
- 9V/12V output ON/OFF switchable
- Digital video OSD is supported by any spare UART
- Vbat Input: 9~30V (3~6S LiPo)
- BEC 5V/4v5: 2.5A cont. /3A peak
- BEC 9V/12V: 2A cont. /3A peak
- BEC Vx: 8A cont. /12A Peak, output 5V Default, 6V or 7.2V option.
- LDO 3.3V: Max.200mA
- No calibration required.
- Current sensing resistor: 0.00025 ohm
- Load current on current sensing resistor: 100A(Continuous), 164A(Burst)
- Voltage accuracy: ± 0.1%
- Current accuracy: ± 2%
- INA2xx I2C address: 0x45 (69)
- Parameters BATT_MONITOR ->21 (INA2xx) BATT_SHUNT -> 0.00025 BATT_MAX_AMPS -> 164 BATT_I2C_BUS -> 0 default BATT_I2C_ADDR -> 0 default (or 69)
- BATT_MONITOR ->21 (INA2xx)
- BATT_SHUNT -> 0.00025
- BATT_MAX_AMPS -> 164
- BATT_I2C_BUS -> 0 default
- BATT_I2C_ADDR -> 0 default (or 69)
- Dupont 2.54 pins (Board is shipped unsoldered)
In the box
- 6x Uarts (1,2,3,4, 5, 6) with built-in inversion.
- 11x PWM outputs
- 1x I2C
- 1x CAN
- 4x ADC (VBAT, Current, VB2, Cur2)
- 3x LEDs for FC STATUS (Blue, Red) and 3.3V indicator(Red)
- 2x JST-GH1.25_4pin connector for CAN and I2C
- 1x H7A3-WING
- 1x USB(Type-C)/Beep (Passive buzzer) Extender with 6pin cable
- 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