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README.md
iFlight Beast F7 45A AIO Flight Controller
https://shop.iflight-rc.com/index.php?route=product/product&product_id=1377
The Beast F7 AIO is a flight controller produced by iFlight.
Features
- MCU: BGA-STM32F745
- Gyro: MPU6000
- 8Mb Onboard Flash
- BEC output: 5V 2.5A
- Barometer: BMP280
- OSD: AT7456E
- 5 UARTS: (UART1, UART2, UART3, UART4, UART7)
- 5 PWM outputs (4 motors and 1 LED)
Pinout
UART Mapping
The UARTs are marked Rn and Tn in the above pinouts. The Rn pin is the receive pin for UARTn. The Tn pin is the transmit pin for UARTn.
| Name | Pin | Function |
|---|---|---|
| SERIAL0 | COMPUTER | USB |
| SERIAL1 | RX1/TX1 | UART1 (Telem1 / Alt RC Input/Output) |
| SERIAL2 | TX2/RX2 | UART2 (DJI) |
| SERIAL3 | RX3 | UART3 (DJI RC Input) |
| SERIAL4 | TX4/RX4 | UART4 (GPS) |
| SERIAL7 | TX7/RX7 | UART7 |
UART1 supports RX and TX DMA. UART2, UART3 and UART4 support RX DMA. UART7 supports TX DMA
RC Input
RC input is configured on the (UART3_RX) pin which forms part of the DJI connector. It supports all RC protocols. For RC input/output use UART1 wih SERIAL1_PROTOCOL as 23 and set SERIAL3_PROTOCOL set to -1
OSD Support
The Beast F7 AIO supports OSD using OSD_TYPE 1 (MAX7456 driver).
PWM Output
The Beast F7 AIO supports up to 4 PWM outputs. The pads for motor output ESC1 to ESC4 on the above diagram are for the 4 outputs. All 4 outputs support DShot as well as all PWM types.
The PWM are in in two groups.
Channels within the same group need to use the same output rate. If any channel in a group uses DShot then all channels in the group need to use DShot.
Battery Monitoring
The board has a builtin voltage sensor. The voltage sensor can handle up to 6S LiPo batteries.
The correct battery setting parameters are:
- BATT_MONITOR 4
- BATT_VOLT_PIN 12
- BATT_VOLT_MULT around 10.9
- BATT_CURR_PIN 13
- BATT_CURR_MULT around 28.5
These are set by default in the firmware and shouldn't need to be adjusted
Compass
The Beast F7 AIO does not have a builtin compass and you cannot attach an external compass due to the lack of an external I2C connector.
NeoPixel LED
The board includes a NeoPixel LED on the underside which is pre-configured to output ArduPilot sequences. This is the fifth PWM output.
Loading Firmware
Initial firmware load can be done with DFU by plugging in USB with the bootloader button pressed. Then you should load the "with_bl.hex" firmware, using your favourite DFU loading tool.
Once the initial firmware is loaded you can update the firmware using any ArduPilot ground station software. Updates should be done with the *.apj firmware files.