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Seriously Pro SP Racing F3 (Acro/Deluxe)

The Seriously Pro Racing F3 board (SPRacingF3) is the first board designed specifically for Cleanflight.

Purchasing boards directly from SeriouslyPro / SP Racing and official retailers helps fund Cleanflight development, it's the reason the Seriously Pro boards exist! Official retailers are always listed on the SeriouslyPro.com website.

Full details available on the website, here:

http://seriouslypro.com/spracingf3

Hardware Features

  • 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!
  • On-board high-capacity black box flight log recorder - optimize your tuning and see the results of your setup without guesswork. (Acro and Deluxe)
  • Next-generation STM32 F3 processor with hardware floating point unit for efficient flight calculations and faster ARM-Cortex M4 core.
  • Stackable design - perfect for integrating with OSDs and power distribution boards.
  • 16 PWM I/O lines for ESCs, Servos and legacy receivers. 8 available on standard pin headers. 8 via side mounted connectors.
  • Supports SBus, SumH, SumD, Spektrum1024/2048, XBus, PPM, PWM receivers. No external inverters required (built-in).
  • Dedicated output for programmable LEDs - great for orientation, racing and night flying.
  • Dedicated I2C port for connection of OLED display without needing flight battery.
  • Battery monitoring ports for voltage and current.
  • Buzzer port for audible warnings and notifications.
  • Solder pads in addition to connectors for Sonar, PPM, RSSI, Current, GPIO, LED Strip, 3.3v,
  • Developer friendly debugging port (SWD) and boot mode selection, unbrickable bootloader.
  • Symmetrical design for a super tidy wiring.
  • Wire up using using pin headers, JST-SH sockets or solder pads. Use either right-angled or straight pin-headers.
  • Barometer mounted on the bottom of the board for easy wind isolation.

Serial Ports

ValueIdentifierRXTX5v TolerantNotes
1USART1PA10PA9YESInternally connected to USB port via CP2102 IC. Also available on a USART1 JST connector and on through hole pins.
2USART2PA15PA14YESAvailable on USART2 JST port only.
3USART3PB11 / IO2_3PB10 / IO2_4NOAvailable on IO_2, USART3 JST port and through hole pins.
  • You cannot use SWD and USART2 at the same time.
  • You may encounter flashing problems if you have something connected to the USART1 RX/TX pins. Power other devices off and/or disconnect them.

Pinouts

Full pinout details are available in the manual, here:

http://seriouslypro.com/spracingf3#manual

IO_1

The 8 pin IO_1 connector has the following pinouts when used in RX_PARALLEL_PWM mode.

PinFunctionNotes
1Ground
2VCC_INVoltage as-supplied by BEC.
3RC_CH1
4RC_CH2
5RC_CH5
6RC_CH6
7LED_STRIPEnable feature LED_STRIP
8VCC3.3v output for LOW CURRENT application only

When RX_PPM/RX_SERIAL is used the IO_1 pinout is as follows.

PinFunctionNotes
1Ground
2VCC_INVoltage as-supplied by BEC.
3RX_PPMEnable feature RX_PPM
4GPIO
5SoftSerial1_RX
6SoftSerial1_TX
7LED_STRIPEnable feature LED_STRIP
8VCC3.3v output for LOW CURRENT application only

IO_2

The 8 pin IO_2 connector has the following pinouts when used in RX_PARALLEL_PWM mode.

PinFunctionNotes
1Ground
2VCC_INVoltage as-supplied by BEC.
3RC_CH3
4RC_CH4
5RC_CH7/SONAR_TRIG
6RC_CH8/SONAR_ECHO
7ADC_1Current Sensor
8ADC_2RSSI

When RX_PPM/RX_SERIAL is used the IO_2 pinout is as follows.

PinFunctionNotes
1Ground
2VCC_INVoltage as-supplied by BEC.
3RX_SERIALUART3 RX
4UART3_TX
5SONAR_TRIG/SoftSerial2_RXEnable feature SONAR/SOFTSERIAL
6SONAR_ECHO/SoftSerial2_TXEnable feature SONAR/SOFTSERIAL
7ADC_1Current Sensor
8ADC_2RSSI

UART1/2/3

PinFunctionNotes
1Ground
2VCC_INVoltage as-supplied by BEC.
3TXD
4RXD

I2C

PinFunctionNotes
1Ground
25.0vVoltage as-supplied by BEC OR USB, always on
3SCL
4SDA

SWD

The port cannot be used at the same time as UART2.

PinFunctionNotes
1Ground
2NRST
3SWDIO
4SWDCLK

Reference:SPRF3