MATEKSYS H7A3-SLIM Flight Controller (30×30mm)

The MATEKSYS H7A3-SLIM is a 30.5x30.5mm flight controller built around an STM32H7A3 (Cortex-M7, 280MHz) processor, aimed at builds that need a fast, feature-complete standalone FC in a slim, light package.

Key features

• ICM42688P gyro and SPL06-001 barometer feed the flight-control loop, with an AT7456E OSD and 128MB blackbox for logging.
• 6 UART ports (all with built-in inversion) plus a CAN port and 8 dedicated ESC PWM outputs across two JST-SH1.0 8-pin connectors, enough wiring headroom for 4-in-1 ESCs, GPS, telemetry and a digital VTX together.
• Accepts 2–8S LiPo input with switchable 5V/2A and 9V/2A BEC outputs for cameras, VTX and accessories, plus a USB Type-C port for flashing.
• Supports ArduPilot (MATEKH7A3 target, firmware 4.6 or newer), INAV and Betaflight, covering both multirotor and fixed-wing setups.

Specifications

• Processor: STM32H7A3 (280MHz Cortex-M7)
• Gyro: ICM42688P
• Barometer: SPL06-001
• UART ports: 6
• Input voltage: 2–8S LiPo
• Dimensions: 36 x 36 x 5 mm
• Weight: 7 g
• Mounting: 30.5 x 30.5 mm, 4 mm holes (M4-to-M3 grommets included)
• PWM outputs: 11 (8 on two JST-SH 8-pin ESC connectors)
• Current sensor: None built in
• In the box: H7A3-SLIM board, 6 silicone grommets, 2 JST-SH 8-pin ESC cables with connectors, 20 cm JST-GH 4-pin CAN cable

At 7g and a slim profile, it fits builds where space and weight are tight; confirm the 30.5x30.5 mounting pattern and grommet size against your frame before fitting.