Matek Flight Controller H7A3-SLIM
by Matek Systems

Matek H7A3-SLIM Flight Controller

Elevate your drone performance with the Matek H7A3-SLIM Flight Controller. Powered by the robust STM32H7A3RIT6 MCU, this flight controller offers a 280MHz Cortex-M7 processor, 1.4MB of RAM, and 2MB of flash memory, ensuring seamless operation for even the most demanding applications. Integrated with an ICM42688P IMU and SPL06-001 barometer, it provides accurate and reliable sensor data. The AT7456E OSD and 128MB Blackbox offer enhanced control and data logging capabilities.

With 6 UARTs, 11 PWM outputs, I2C, CAN, and multiple ADCs, the Matek H7A3-SLIM is designed for versatile connectivity and advanced features. It supports digital video OSD via any spare UART and is compatible with ArduPilot firmware. This compact and lightweight controller also features a USB Type-C interface, switchable 9V output, and a durable design with a 30.5 x 30.5mm mounting pattern.

Specifications

• MCU: STM32H7A3RIT6, 280MHz Cortex-M7, 1.4MB RAM, 2MB Flash
• IMU: ICM42688P
• Baro: SPL06-001
• OSD: AT7456E
• Blackbox: 128MB Flash (1G-bit NAND)

• 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)
• USB Type-C(USB2.0)
• 8x PWM outputs on 2x JST-SH1.0_8pin connector for 2x 4in1 ESC
• 1x JST-GH1.25_4pin connector (5V/CAN-H/CAN-L/G)

• 9V output ON/OFF switchable

• Digital video OSD is supported by any spare UART

Power

• Vbat Input: 6~36V (2~8S LiPo)
• BEC: 5V 2A cont. (Max.3A)
• BEC: 9V 2A cont. (Max.3A)
• LDO 3.3V: Max.200mA
• No Current Sensor built-in
• ADC VB2 pad supports Max. 69V (voltage divider: 1K:20K)

FC Firmware

• ArduPilot: MATEKH7A3 (4.6 or newer)
• ArduPlane  https://firmware.ardupilot.org/Plane/latest/MatekH7A3/
• ArduCopter  https://firmware.ardupilot.org/Copter/latest/MatekH7A3/
• Flashing with STM32CubeProgrammer

Physical

• Mounting: 30.5 x 30.5mm, Φ4mm with Grommets Φ3mm
• Dimensions: 36 x 36 x 5 mm
• Weight: 7g
• 3D step  H7A3-SLIM_step.zip

Including

• 1x H7A3-SLIM
• 6x Silicon grommets M4 to M3
• 2x JST-SH1.0_8pin cable, 5cm,  & 8pin connectors
• 1x JST-GH-4P to JST-GH-4P cable for CAN port, 20cm