3 The Seriously Pro Racing MOF3 board (SPRacingF3) is the first board designed specifically for Cleanflight.
5 Full details available on the website, here:
7 http://seriouslypro.com/spracingf3
11 * 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!
12 * On-board high-capacity black box flight log recorder - optimize your tuning and see the results of your setup without guesswork. (Acro and Deluxe)
13 * Next-generation STM32 F3 processor with hardware floating point unit for efficient flight calculations and faster ARM-Cortex M4 core.
14 * Stackable design - perfect for integrating with OSDs and power distribution boards.
15 * 16 PWM I/O lines for ESCs, Servos and legacy receivers. 8 available on standard pin headers. 8 via side mounted connectors.
16 * Supports SBus, SumH, SumD, Spektrum1024/2048, XBus, PPM, PWM receivers. No external inverters required (built-in).
17 * Dedicated output for programmable LEDs - great for orientation, racing and night flying.
18 * Dedicated I2C port for connection of OLED display without needing flight battery.
19 * Battery monitoring ports for voltage and current.
20 * Buzzer port for audible warnings and notifications.
21 * Solder pads in addition to connectors for Sonar, PPM, RSSI, Current, GPIO, LED Strip, 3.3v,
22 * Developer friendly debugging port (SWD) and boot mode selection, unbrickable bootloader.
23 * Symmetrical design for a super tidy wiring.
24 * Wire up using using pin headers, JST-SH sockets or solder pads. Use either right-angled or straight pin-headers.
25 * Barometer mounted on the bottom of the board for easy wind isolation.
29 | Value | Identifier | RX | TX | 5v Tolerant | Notes |
30 | ----- | ------------ | ------------ | ------------ | ----------- | ------------------------------------------------------------------------------------------- |
31 | 1 | USART1 | PA10 | PA9 | YES | Internally connected to USB port via CP2102 IC. Also available on a USART1 JST connector and on through hole pins. |
32 | 2 | USART2 | PA15 | PA14 | YES | Available on USART2 JST port only. |
33 | 3 | USART3 | PB11 / IO2_3 | PB10 / IO2_4 | NO | Available on IO_2, USART3 JST port and through hole pins. |
35 * You cannot use SWD and USART2 at the same time.
36 * You may encounter flashing problems if you have something connected to the USART1 RX/TX pins. Power other devices of and/or disconnect them.
40 Full pinout details are available in the manual, here:
42 http://seriouslypro.com/spracingf3#manual
46 The 8 pin IO_1 connector has the following pinouts when used in RX_PARALLEL_PWM mode.
48 | Pin | Function | Notes |
49 | --- | -------------- | -------------------------------------------- |
51 | 2 | VCC_IN | Voltage as-supplied by BEC. |
56 | 7 | LED_STRIP | Enable `feature LED_STRIP` |
57 | 8 | VCC | 3.3v output for LOW CURRENT application only |
59 When RX_PPM/RX_SERIAL is used the IO_1 pinout is as follows.
61 | Pin | Function | Notes |
62 | --- | -------------- | -------------------------------------------- |
64 | 2 | VCC_IN | Voltage as-supplied by BEC. |
65 | 3 | RX_PPM | Enable `feature RX_PPM` |
67 | 5 | SoftSerial1_RX | |
68 | 6 | SoftSerial1_TX | |
69 | 7 | LED_STRIP | Enable `feature LED_STRIP` |
70 | 8 | VCC | 3.3v output for LOW CURRENT application only |
74 The 8 pin IO_2 connector has the following pinouts when used in RX_PARALLEL_PWM mode.
76 | Pin | Function | Notes |
77 | --- | ----------------- | -------------------------------------------- |
79 | 2 | VCC_IN | Voltage as-supplied by BEC. |
82 | 5 | RC_CH7/SONAR_TRIG | |
83 | 6 | RC_CH8/SONAR_ECHO | |
84 | 7 | ADC_1 | Current Sensor |
87 When RX_PPM/RX_SERIAL is used the IO_2 pinout is as follows.
89 | Pin | Function | Notes |
90 | --- | ------------------------- | -------------------------------------------- |
92 | 2 | VCC_IN | Voltage as-supplied by BEC. |
93 | 3 | RX_SERIAL | UART3 RX |
95 | 5 | SONAR_TRIG/SoftSerial2_RX | Enable `feature SONAR/SOFTSERIAL` |
96 | 6 | SONAR_ECHO/SoftSerial2_TX | Enable `feature SONAR/SOFTSERIAL` |
97 | 7 | ADC_1 | Current Sensor |
102 | Pin | Function | Notes |
103 | --- | -------------- | -------------------------------------------- |
105 | 2 | VCC_IN | Voltage as-supplied by BEC. |
111 | Pin | Function | Notes |
112 | --- | -------------- | -------------------------------------------- |
114 | 2 | 5.0v | Voltage as-supplied by BEC OR USB, always on |
120 The port cannot be used at the same time as UART2.
122 | Pin | Function | Notes |
123 | --- | -------------- | -------------------------------------------- |
125 | 2 | NRST | Voltage as-supplied by BEC OR USB, always on |