mirror of https://github.com/ArduPilot/ardupilot
89 lines
2.7 KiB
Markdown
89 lines
2.7 KiB
Markdown
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# HEEWING F405 Flight Controller
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https://www.heewing.com/pages/t1-ranger-vtol-pnp-manual
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The HEEWING F405 is a flight controller produced by [HEEWING](https://www.heewing.com/pages/t1-ranger-vtol-pnp-manual) that is incorporated into their Ranger-T1 VTOL RTF airframe.
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## Features
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- STM32F405 microcontroller
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- ICM42688 IMU
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- SLP06 barometer
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- 16Mb dataflash
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- MAX7456 OSD
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- 4 UARTs
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- 9 PWM outputs
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### HEEWING F405 Pinout
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![HEEWING F405 Board](heewingf405.jpg "HEEWING F405")
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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 -> UART3 (UART1 on casing, DMA-enabled)
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- SERIAL2 -> UART1 (UART2 on casing, DMA-enabled)
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- SERIAL5 -> UART5 (GPS)
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- SERIAL6 -> UART2 (RCIN RX-only or RX/TX with BRD_ALT_CONFIG=1, DMA-enabled)
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## RC Input
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RC input is configured on the RCIN connector (UART2_RX) pin. It supports all serial RC protocols. It can be configured for two-way protocols (e.g. CRSF) by setting BRD_ALT_CONFIG=1
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## FrSky Telemetry
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FrSky Telemetry can be supported using the transmit pin on a spare serial ports SERIAL1 and SERIAL2.
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## OSD Support
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The HEEWING F405 supports OSD using OSD_TYPE 1 (MAX7456 driver).
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## PWM Output
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The HEEWING F405 supports up to 9 PWM outputs. M1-M2, M5-M6 and M9 support bi-directional dshot. All outputs support dshot although M3-4 are not recommended for this purpose as they share resources with I2C.
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The PWM is in 4 groups:
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- PWM 1 and 2 in group1
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- PWM 3 and 4 in group2
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- PWM 5 and 6 in group3
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- PWM 7-9 in group4
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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.
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## Battery Monitoring
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The board has a builting voltage and current sensor. The current
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sensor can read up to 130 Amps. The voltage sensor can handle up to 6S
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LiPo batteries.
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The correct battery setting 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 7.71
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- BATT_AMP_PERVLT 26.67
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## Compass
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The HEEWING F405 does not have a builtin compass, but you can attach an external compass using the GPS port. The RTF kit comes pre-supplied with a GPS and compass.
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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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Note that this hardware has problems going into DFU mode if a GPS is connected and powered - please disconnect your GPS when flashing for the first time.
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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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