mirror of https://github.com/ArduPilot/ardupilot
101 lines
3.1 KiB
Markdown
101 lines
3.1 KiB
Markdown
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# SpeedyBee F405 v4 Flight Controller
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The SpeedyBee F405 v4 is a flight controller produced by [SpeedyBee](http://www.speedybee.com/).
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## Features
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- STM32F405 microcontroller
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- ICM42688 IMU
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- DPS310 barometer
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- SDCard
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- AT7456E OSD
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- 6 UARTs
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- 9 PWM outputs
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## Pinout
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## UART Mapping
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The UARTs are marked Rn and Tn in the above pinouts. The Rn pin is the
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receive pin for UARTn. The Tn pin is the transmit pin for UARTn.
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- SERIAL0 -> USB
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- SERIAL1 -> UART1 (DJI-VTX, DMA-enabled)
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- SERIAL2 -> UART2 (RCIN, DMA-enabled)
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- SERIAL3 -> UART3 (CAM)
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- SERIAL4 -> UART4 (connected to internal BT module, not currently usable by ArduPilot)
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- SERIAL5 -> UART5 (ESC Telemetry)
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- SERIAL6 -> UART6 (GPS, DMA-enabled)
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## RC Input
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RC input is configured on the R2 (UART2_RX) pin for most RC unidirectional protocols except SBUS which should be applied at the SBUS pin. PPM is not supported.
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For Fport, a bi-directional inverter will be required. See https://ardupilot.org/plane/docs/common-connecting-sport-fport.html
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For CRSF/ELRS/SRXL2 connection of the receiver to T2 will also be required.
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## FrSky Telemetry
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FrSky Telemetry is supported using the Tx pin of any UART including SERIAL2/UART2. You need to set the following parameters to enable support for FrSky S.PORT (example shows SERIAL3).
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- SERIAL3_PROTOCOL 10
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- SERIAL3_OPTIONS 7
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## OSD Support
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The SpeedyBee F405 v4 supports OSD using OSD_TYPE 1 (MAX7456 driver).
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## VTX Support
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The JST-GH-6P connector supports a standard DJI HD VTX connection. Pin 1 of the connector is 9v so be careful not to connect
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this to a peripheral requiring 5v.
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## PWM Output
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The SpeedyBee F405 v4 supports up to 9 PWM outputs. The pads for motor output
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M1 to M4 on the motor connector, plus M9 for LED strip or another
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PWM output.
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The PWM is in 5 groups:
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- PWM 1-2 in group1
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- PWM 3-4 in group2
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- PWM 5-6 in group3
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- PWM 7-8 in group4
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- PWM 9 in group5
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Channels within the same group need to use the same output rate. If
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any channel in a group uses DShot then all channels in the group need
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to use DShot. Channels 1-4 support bi-directional DShot.
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## Battery Monitoring
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The board has a internal voltage sensor and connections on the ESC connector for an external current sensor input.
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The voltage sensor can handle up to 6S.
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LiPo batteries.
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The default battery parameters are:
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- BATT_MONITOR 4
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- BATT_VOLT_PIN 10
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- BATT_CURR_PIN 11
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- BATT_VOLT_MULT 11.2
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- BATT_AMP_PERVLT 52.7 (will need to be adjusted for whichever current sensor is attached)
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## Compass
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The SpeedyBee F405 v4 does not have a builtin compass, but you can attach an external compass using I2C on the SDA and SCL pads.
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## Loading Firmware
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Initial firmware load can be done with DFU by plugging in USB with the
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bootloader button pressed. Then you should load the "with_bl.hex"
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firmware, using your favourite DFU loading tool.
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Once the initial firmware is loaded you can update the firmware using
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any ArduPilot ground station software. Updates should be done with the
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*.apj firmware files.
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