Matek H7A3-WING Flight Controller
by Matek Systems

The Matek H7A3-WING is a premium flight controller designed specifically for fixed-wing aircraft and flying wings. Powered by the STM32H7A3RIT6 280 MHz Cortex-M7 processor, it packs modern sensors including the ICM42688P IMU and SPL06 barometer, plus an AT7456E OSD. It features a high-precision digital power monitor via I²C, so you can monitor voltage and current without extra hardware. With 11 PWM outputs, 6 UARTs, CAN, I²C, multiple ADCs, and flexible BEC outputs (5V, 9V or 12V switchable), the H7A3-WING provides all the connectivity and power options needed for advanced fixed-wing or UAV builds. Firmware support includes ArduPlane and ArduCopter.

Specifications:

• MCU: STM32H7A3RIT6, 280 MHz Cortex-M7, 1.4 MB RAM, 2 MB Flash
• IMU: ICM42688P
• Barometer: SPL06-001
• OSD: AT7456E
• Blackbox: MicroSD socket
• Digital power monitor (I²C) with 0.00025Ω shunt, 100A continuous / 164A burst
• UARTs: 6 (with built-in inversion)
• PWM outputs: 11
• CAN: 1 port
• I²C: 1 port
• ADCs: 4 (VBAT, Current, VB2, Cur2)
• LEDs: 3 (FC status, power indicator, LED 3.3V)
• Regulators & BECs:
   • 5V or 4.5V BEC: 2.5A continuous / 3A peak
   • 9V/12V output switchable: 2A continuous / 3A peak
   • 8A continuous / 12A peak “Vx” output (5V default, option for 6V or 7.2V)
• Input Voltage: 9-30V (3-6S LiPo)
• Mounting Pattern: 30.5 × 30.5 mm, 4 mm holes; grommets 3 mm
• Physical Size: 54 × 36 × 13 mm
• Weight: ~30 g (with USB extender)

What’s in the Box:

• 1 × Matek H7A3-WING Flight Controller
• USB-C / Beeper (passive buzzer) extender with 6-pin cable
• 20 cm JST-SH-6P cable for USB extender
• 2 × 20 cm JST-GH-4P to JST-GH-4P cables for CAN & I²C ports
• 1 × Rubycon ZLH 35V 470 µF capacitor
• Dupont 2.54 mm pins – board shipped unsoldered