Compact and lightweight design ideal for X8 FPV racing drones requiring a slim flight controller Features the advanced ICM42688P gyro for precise and stable flight performance Integrated SPL06-001 barometer ensures accurate altitude hold and smooth flight control OSD provides real-time flight data display without additional modules Supports 11 PWM outputs for versatile connectivity with multiple peripherals 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 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 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 file: H7A3-SLIM_step. zip Included: 1x H7A3-SLIM 6x Silicon grommets M4 to M3 2x JST-SH1. 0_8pin , 5cm, & 8pin connectors 1x JST-GH-4P to JST-GH-4P for CAN port, 20cm PWM Outputs: PWM1~PWM11 are Dshot and PWM capable. Mixing Dshot and normal PWM is restricted into groups. If servo and motor are mixed in the same group, ensure the group runs at the lowest PWM frequency according to the servo specification. PINIO: 9V switch controlled via GPIO81 (RELAY1_PIN). ADC: Vbat pad: 6~36V range Curr pad: 0~3. 3V range VB2 Pad: 0~69V range CU2 Pad: 0~3. 3V range I2C: SCL/SDA on I2C3, 5V tolerant I/O, onboard Baro SPL06-001 (Address: 0x76). Supports digital airspeed sensors (MS4525, DLVR-L10D). CAN: C-H/C-L on CAN2, 5V tolerant I/O. Supports CAN GPS, CAN Compass, and CAN Airspeed sensor. UART: 6x UARTs (USART1-6) with DMA support on some. Default configurations include telemetry, RC input, GPS, and spare ports. RC Input: Configured on USART2 (SERIAL2). Supports serial RC protocols (CRSF, SBUS, DSM, SRXL, FPort, SRXL2). PPM is not supported. Relay (PINIO): 9V output ON by default. Can be controlled via transmitter auxiliary switch (CH7) with PWM thresholds (ON >1800, OFF <1200). Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.