We are quickly shipping orders with a 1man clean environment for your safety. (3/2/2020) Departing from Florida, U.S.A.  

SP Racing F3 Flight Controller (Acro)

SP Racing F3 Flight Controller (Acro)

Two donations are being made to Cleanflight when you purchase this board.



  • Practical - Easy to access connectors and solder pads.

  • Configurable - Choose to use connectors, solder pads or pins.

  • Stackable - Mount to your PDB or OSD.

  • Compact - Only 36x36mm.

  • Professional - Symmetrical, Neat and Tidy.

  • 8 Dedicated PWM outputs

  • 8 PWM Inputs

  • 36 I/O Connections

  • 72Mhz Clock Speed

  • 3 Hardware Serial Ports

  • 64Mb Flash Storage

Specifications (Acro Version)

The hardware was designed by the lead developer of Cleanflight to be more capable than the previous-generation STM32F1-based boards after hearing feedback from the Cleanflight users, contributors and top-pilots.

  • 36x36mm board with 30.5mm mounting holes

  • Weight ~6 grams

  • Acro version is without Compass and Barometer Sensors

  • STM32F303 CPU, 72Mhz inc FPU

  • High-Capacity Flash (Acro and Deluxe)

  • MPU6050 accelerometer/gyro

  • MicroUSB socket

  • 2x 8pin JST-SH sockets (PPM, PWM, SERIAL RX, GPIO, ADC, 3V, 5V, GND)

  • 8x 3pin though-holes for pin headers for ESC/Servo connections

  • 2x 4pin though-holes for pin headers for 2x serial ports

  • 1x 2pin though-holes for pin headers for battery voltage

  • 1x 2pin though-holes for pin headers for buzzer

  • 1x 4pin JST-SH socket for I2C

  • 1x 4pin JST-SH socket for SWD debugging



Flight Performance
The SPRacingF3 builds on tried and tested software, processor and sensor technology to make your aircraft fly like it's on rails.
No-Compromise I/O
Use all the features all the time; e.g. Connect your OSD + SmartPort + SBus + GPS + LED Strip + Battery Monitoring + Sonar + 8 motors - all at the same time!
The SPRacingF3 runs Cleanflight which can be configured to suit your needs using a cross-platform GUI (Windows/OSX/Linux).
Tiny and lightweight
The SPRacingF3 has a standard 36x36mm form-factor with 30.5mm mounting holes and weighs just 6 grams.
Flight Logging
On-board high-capacity black box flight log recorder - optimize your tuning and see the results of your setup without guesswork.
Next-Generation CPU
The SPRacingF3 has an ARM Cortex-M4 72Mhz CPU with Math co-processor (FPU) for efficient flight calculations that gets more done in less time.
Loop times up to ~2x as fast as previous-generation STM32F1 based boards.
Developer Friendly
Developer friendly debugging port (SWD) and boot mode selection, unbrickable bootloader.
OneShot ESC
Full support for OneShot ESCs for easy PID tuning and a sharper response.
Broad RC receiver Support
Supports SBus, SumH, SumD, Spektrum1024/2048, XBus, PPM, PWM receivers. No external inverters required (built-in).
Programmable LED
Dedicated output for programmable LEDs - great for orientation, racing and night flying.
Battery Monitoring
Battery monitoring ports for voltage and current.
Sonar support for precision low-altitude hold.
I2C Port
I2C port always powered, perfect for external sensors or always-on OLED Screen.
Buzzer port for audible warnings and notifications.