Sub250 Redfox A1 F4 5A 4in1 1S AIO FC (Choose Your Version)

Price range: $76.99 through $101.99

Build your dream 1S micro! Sub250 Redfox A1 F4 5A AIO features ELRS 3.0 & Bluejay 96K. Choose between Built-in 200mW Analog VTX or No VTX for HD builds.

Free Shipping

Redfox A1 F4 5A FC

Check Out Our Other Sub250 Products!

The ultimate foundation for your next 1S micro build! The Sub250 Redfox A1 F4 5A AIO is a highly integrated flight controller designed specifically for sub-250g drones like the Whoopfly16, Nanofly16, and Nanofly20. To accommodate every pilot’s preference, this powerful little board is available in two distinct versions: one for traditional Analog video and one optimized for Digital HD systems.

Choose Your Setup: Analog vs. Digital

Analog Version (with 200mW VTX): Features a built-in 5.8G 200mW video transmitter, providing an all-in-one solution that requires zero external soldering for your video feed. Perfect for ultra-lightweight analog whoops.
Digital Version (NO VTX): Strips away the onboard VTX to save crucial weight and space. This is the ideal choice for pilots who want to install a lightweight digital FPV system like HDZero or Walksnail, or those who simply prefer using a specific external analog VTX.

Latest Firmware: Betaflight 4.4 & ELRS 3.0

Stay ahead of the curve. The Redfox A1 now ships with updated firmware right out of the box. It features Betaflight 4.4 and an integrated SPI ExpressLRS 2.4GHz receiver running ELRS 3.0. This saves you the hassle of micro-soldering an external receiver while giving you industry-leading range and ultra-low latency control.

Bluejay Powered ESCs

Get the most out of your micro motors. The integrated 4-in-1 ESC pushes 5A of continuous current and comes pre-flashed with Bluejay O-H-5 96K firmware (with support for BLS firmware if preferred). This high 96KHz PWM frequency is absolutely critical for maximizing the efficiency, smoothness, and flight time of tiny 1S motors.

Key Features:

Two Versions: Choose between Built-in 200mW VTX (Analog) or No VTX (Digital HD ready).
Built-in RX: Integrated SPI ELRS 2.4G (V3.0) receiver saves weight and soldering time.
Updated Firmware: Ships with Betaflight 4.4 for modern flight performance.
Smooth Flight: Reliable STM32F411 processor paired with the modern ICM42688-P gyro.
Efficient Power: 5A ESC running Bluejay 96K firmware out of the box.