ARK FPV Flight Controller

Overview

The ARK FPV is a USA-built, NDAA-compliant FPV flight controller based on the ARKV6X design, in a standard 30.5mm mounting pattern. Unlike the ARKV6X module, it is a complete stand-alone board with all connectors on board.

Power

Direct battery input from 5.5V to 54V (3S-12S) with a 54V zener standoff and 60V breakdown. Onboard 5V 2A and 12V 2A regulators - the 12V rail is MCU-controlled and feeds a video transmitter or payload through the dedicated VTX port. The board's own draw is roughly 500mA (300mA logic + 200mA heater). Voltage monitoring on VBAT, 5V, 12V and both 3.3V rails.

Sensors

• Invensense IIM-42653 industrial IMU
• Bosch BMP390 barometer
• ST IIS2MDC magnetometer
• 1W heater for cold-weather operation

Connectors

• USB-C
• PWM (JST-GH 8-pin): VBAT, analog current, telemetry RX, 4x PWM
• PWM Extra (JST-SH 6-pin): 5x PWM - nine PWM outputs in total
• RC Input (JST-GH 4-pin), Telemetry (JST-GH 6-pin, flow control)
• GPS (JST-GH 6-pin: UART + I2C), CAN (JST-GH 4-pin)
• VTX (JST-GH 6-pin: 12V + UART), Power Aux (JST-GH 3-pin)
• SPI (JST-SH 8-pin), Debug (JST-SH 6-pin: UART + SWD)

Specifications

• MCU: STM32H743IIK6, 480MHz, 2MB Flash, 1MB RAM
• Dimensions: 3.6 x 3.6 x 0.8 cm
• Weight: 7.5 g including MicroSD card
• Mounting: 30.5mm standard
• MicroSD card included
• Built in the USA

Firmware

Runs PX4 out of the box; ArduPilot and Betaflight are both supported.

Note: the VTX port supplies power and data to an external video transmitter. It is the user's responsibility to ensure any transmitter they connect operates on a frequency permitted for use in Israel.