61 lines
2.4 KiB
Markdown
61 lines
2.4 KiB
Markdown
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# Board - F3FC Racing
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Designed by RCExplorer.se
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Full details available on the website, here:
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http://rcexplorer.se/product/f3fc-racing/
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## Hardware Features
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* STM32F303CC Processor
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* MPU6000 connected via SPI (With interrupt pin connected)
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* 3 UARTs
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* VCP USB
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* 6 PWM channels (PWM 6 used as PPM input when selected)
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* Supports SBus, SumH, SumD, Spektrum1024/2048, XBus and PPM receivers. No external inverters required.
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* Dedicated RGB LED control pin.
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* Dedicated I2C port
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* Integrated battery monitoring
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* Current sensor input pin
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* Buzzer/Beeper port
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* Built in 5V BEC (500mA)
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* Push button for entering DFU mode
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* 3.3V pad available for spectrum satellite receivers.
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## Serial Ports
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| Value | Identifier | RX | TX | Notes |
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| ----- | ------------ | ------------ | ------------ | ------------------------------------------------------------------------------------------- |
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| 1 | VCP | PA11 | PA12 | Mini USB connector |
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| 2 | USART1 | PB7 | PB6 | Marked as R1 and T1 on the board |
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| 3 | USART2 | PA3 | PA2 | Marked as R2 and T2 on the board |
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| 4 | USART3 | PB11 | PB10 | Marked as R3 and T3 on the board |
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## Pinouts
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Full pinout details are available in the manual, here:
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http://rcexplorer.se/product/f3fc-racing/
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### IOs
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| Pad | Signal | Notes |
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| ------ | -------------- | -------------------------------------------- |
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| Isense | PB2 | Analog sensor |
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| Vbat | PA5 | Voltage supplied to the built in BEC |
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| LED | PB8 | RGB LED control |
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| FB | PA6 | Servo position FeedBack / RSSI input |
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| BZ- | PA0 | Buzzer output |
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| 6 | PA1 | Used as PPM input when selected |
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| SCLK | PA9 | SCLK I2C |
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| SDA | PA10 | SDA I2C |
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PWM’s are marked as 1-6
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## Voltage and current monitoring
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Voltage is measured on the “Vbat” (which also powers the built in BEC) pads through a voltage divider of 10k/1k connected to PA5.
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Isense pad is connected straight to PB2 and expects an analog voltage between 0-3.3V
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