Description SP Racing F3 Flight Controller (SPRacingF3) is designed to give awesome flight performance. Based on tried and tested sensors whilst also providing unparalleled I/O capabilities in a small and extremely lightweight form-factor using a next-generation STM32F303 CPU. The SPRacingF3 gives you all the features you need for the heart of your aircraft, whether you’re into FPV racing, acrobatic flying or aerial photography it’s perfect. Features 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 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! Configurable : 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 : Sonar support for precision low-altitude hold. I2C Port : I2C port always powered, perfect for external sensors or always-on OLED Screen. Buzzer : Buzzer port for audible warnings and notifications. Variations Acro: Standard model for racing/acro flying. Deluxe: Additional sensors for altitude and direction. Technical Specifications 36x36mm board with 30.5mm mounting holes Weight ~6 grams STM32F303 CPU, 72Mhz inc FPU High-Capacity Flash (Acro and Deluxe) MPU6050 accelerometer/gyro MS5611 barometer (Deluxe only / Not present in ACRO) HMC5883 compass (Deluxe only / Not present in ACRO) 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 Software The SPRacingF3 runs the open-source Cleanflight flight control (FC) software which has an ever-growing community of friendly developers and users. Being open-source means that you too can contribute to the system. Cleanflight comes with a detailed manual that is reviewed and maintained by the Cleanflight developers and community. No more out-of-date wiki pages and second-hand information. [!] Important Note Failure to adhere to these warnings will destroy your flight controller. Observe polarity at ALL TIMES. Check and DOUBLE CHECK before applying power. POWER OFF before unplugging, plugging in or making any connections. Connect only one SOURCE of power to the VCC pins / Do not connect more than one source of power to two or more of the VCC pins. e.g. If you are using ESCs with BECs then remove the center RED wire from all but one ESC connector. Do not connect GND, VCC or 3.3v to each other (short circuit). Do not connect GND, VCC or 3.3v to any inputs or outputs unless specifically stated. Do not connect any input or output to any other input or output unless specifically stated. The 3.3v supply is for low-current use only. 100mA MAX. Do not allow dirt/dust/glue/etc into the pressure sensor (barometer). Keep magnets away from the flight controller. General Advice Follow the advice below for best performance and long-life of your flight controller: Apply resin/glue to reinforce JST-SH connectors – helps if you crash your aircraft. Using an enclosure/box for the flight-controller is recommended. Install open-cell foam under the pressure sensor – sandwich some between the FC and frame. Route motor/battery wires as far away from the compass sensor (magnetometer) as possible. Only install the BOOT jumper pins if you need them. Using color coded pin headers is recommended (not supplied), especially for VBAT headers. Do everything you can to prevent vibrations reaching the accelerometer/gyro sensor. e.g. balance props, motors and secure everything Documents and Downloads Download SPRacingF3 manual here Install Cleanflight here Package Includes 1x Sp Racing F3 Flight Controller ACRO version (6 DOF) Assembled and QC-OK Set of Cables