MicoAir743 V2 AM32 55A 30×30 FC & ESC Stack

The MicoAir743 V2 AM32 55A stack combines the high-bandwidth processing of the STM32H743 MCU with a 32-bit ESC running open-source AM32 firmware. Designed to drop into standard 30.5x30.5mm frames, this stack is suited for 5-inch freestyle rigs, 7-inch long-range cruisers, and demanding autonomous platforms that require extensive computing headroom for complex waypoint navigation.

Key features

• STM32H743VIT6 processor operates at 480MHz, effortlessly managing heavy filtering algorithms and advanced ArduPilot flight code.
• 32-bit 4-in-1 ESC comes pre-loaded with AM32 firmware for ultra-smooth motor response, dynamic PWM frequency adjustments, and rapid telemetry.
• Features eight full hardware UARTs for comprehensive peripheral expansion, accommodating GPS, compass modules, and digital VTX systems simultaneously.
• Integrated MicroSD card slot allows for unrestricted Blackbox logging over extended long-range flights without onboard memory limits.
• Includes dual BECs (5V/3A and 12V/3A) to supply clean, direct power to DJI O3, Walksnail, or other HD video transmitters.

Specifications

• Input Voltage: 2-6S LiPo (6-27V)
• Continuous Current: 55A
• MCU: STM32H743VIT6 (480MHz)
• Gyro: Dual IMU, BMI088 + BMI270
• Barometer: SPL06
• Compass: QMC5883L onboard (an external compass is still recommended)
• OSD: AT7456E
• Blackbox: MicroSD slot
• Ports: 8 UARTs, 11 PWM outputs, I2C, USB-C
• BEC: 5V/3A, 12V/3A
• HD VTX: DJI O3/O4 connector (pin 1 carries 12V)
• Bluetooth: onboard telemetry module on UART8
• ESC: AM32 firmware, current sensor, TVS protection diode (no temperature reading)
• Supported Firmware: ArduPilot (default), PX4, Betaflight, INAV
• Mounting Size: 30.5x30.5mm

With native software targets for Betaflight, INAV, and ArduPilot, this stack offers flexible integration whether you are building an agile cinematic platform or a fully autonomous mapping drone.