Eachine Customized Version Racing F3 Acro 6DOF Flight Controller STM32F303 For Eachine Racer 250
Package includes:
1 Eachine Racing F3 Acro 6DOF Flight Controller

Brief Description:
Product Brand: Eachine
Product Name: Racing F3 Acro 6DOF Flight Controller
Size: 36x36mm board with 30.5mm mounting holes
Weight: 5 grams
Application: for Eachine racer 250 and other RC Multi-rotors and Fixed wings

STM32F303 CPU with FPU 256kB flash.
8MB (64Mbit) High-Capacity Flash
MPU6050 accelerometer/gyro.
Micro USB socket
4~ 4pin JST-SH sockets (I2C, SWD, 2xUART).
2~ 8pin JST-SH sockets (PPM, PWM, SERIAL RX, GPIO, ADC, 3V, 5V, GND).
8~ 3pin though-holes for pin headers for ESC/Servo connections.
2~ 4pin though-holes for pin headers for 2x serial ports.
2~ 2pin though-holes for pin headers for battery voltage and buzzer.

Great Product Features !
Acro version Standard model for racing/acro flying.
No-compromise I/O. You can 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!
Flight Logging: On-board high-capacity black box flight log recorder - optimize your tuning and see the results of your setup with- out guesswork.
Next generation STM32 F3 processor with hardware floating point unit for efficient flight calculations and faster ARM-Cortex M4 core.
Stack-able design perfect for integrating with OSDs and power distribution boards.
16 PWM I/O lines 16 PWM I/O lines for ESCs, Servos and legacy receivers. 8 available on standard pin headers. 8 via side mounted connectors.
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.
I2C port Dedicated I2C port for connection of OLED display without needing a flight battery.
Battery Monitoring Battery monitoring ports for voltage and current.
Sonar: Sonar support for precision low-altitude hold.
Buzzer: Buzzer port for audible warnings and notifications.
SWD: Developer friendly debugging port (SWD) and boot mode selection, unbrickable bootloader.
Symmetrical design: Symmetrical design for a super tidy wiring.
Wire up: Wire up using pin headers, JST-SH sockets or solder pads. Use either right-angled or straight pin-headers.
Barometer : Barometer mounted on the bottom of the board for easy wind isolation.
Loop times: Loop times up to ~2x as fast as previous-generation STM32F1 based boards.
Configuration: Configuration of the flight controller via a cross-platform GUI (Windows/OSX/Linux).
Supports: Supports a variety of aircraft, tri-copters, quadcopters, hexacopters, octocopters, planes .
Currently Ships:
Insured Priority Express Mail 6-9 business days U.S. & U.K. destinations
U.S. Shipping Carriers FED-X or USPS
Insured Standard Registered Shipping 7-20 day delivery other destinations.