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# iFlight BLITZ Wing H743 Flight Controller | ||
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The BLITZ Wing H743 is a flight controller produced by [iFlight](https://shop.iflight.com/electronics-cat27/BLITZ-Wing-H743-Flight-Controller-Pro2174). | ||
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## Features | ||
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- MCU - STM32H743 32-bit processor running at 480 MHz | ||
- Gyro: ICM42688 | ||
- SDCard for logging | ||
- 5V 3A BEC for Flight Controller | ||
- 9V 3A BEC for VTX | ||
- 5-8.4V 6A BEC for Servo | ||
- Barometer: DPS310 | ||
- OSD: AT7456E | ||
- 7x UARTs | ||
- 13x PWM Outputs (12 Motor Output, 1 LED) | ||
- Battery input voltage: 2S-8S | ||
- 2x I2C for external compass, airspeed, etc. | ||
- CAN port | ||
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## Physical | ||
- Mount pattern: 30.5*30.5mm/?4 | ||
- Dimensions: 36.9*52mm | ||
- Weight: 35g | ||
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## Pinout | ||
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![BLITZ Wing H743 Board](blitz_h7_wing_top.PNG "BLITZ Wing H743 Top") | ||
![BLITZ Wing H743 Board](blitz_h7_wing_middle.PNG "BLITZ Wing H743 Middle") | ||
![BLITZ Wing H743 Board](blitz_h7_wing_bottom.PNG "BLITZ Wing H743 Bottom") | ||
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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 | ||
receive pin for UARTn. The Tn pin is the transmit pin for UARTn. | ||
|Name|Pin|Function| | ||
|:-|:-|:-| | ||
|SERIAL0|COMPUTER|USB| | ||
|SERIAL1|RX1/TX1|UART1 (DJI connector, DMA-enabled)| | ||
|SERIAL2|TX2/RX2|UART2 (RX, DMA-enabled)| | ||
|SERIAL3|TX3/RX3|UART3 (DMA-enabled)| | ||
|SERIAL4|TX4/RX4|UART4 (GPS, DMA-enabled)| | ||
|SERIAL6|TX6/RX6|UART6| | ||
|SERIAL7|TX7/RX7|UART7| | ||
|SERIAL8|TX8/RX8|UART8 (ESC Telemetry)| | ||
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## RC Input | ||
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RC input is configured on the (UART2_RX/UART2_TX) pins which forms part of the DJI connector. It supports all serial RC protocols. | ||
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## OSD Support | ||
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The BLITZ Wing H743 supports OSD using OSD_TYPE 1 (MAX7456 driver). Simultaneously, DisplayPort HD OSD is enabled by default and available on the HD VTX connector. | ||
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## PWM Output | ||
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The BLITZ Wing H743 has 13 PWM outputs. The first 8 outputs support bi-directional DShot and DShot, as well as all PWM types. Outputs 9-10 support DShot, as well as all PWM types and outputs 11-12 only support PWM. | ||
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The PWM are in in five groups: | ||
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- PWM 1-2 in group1 | ||
- PWM 3-6 in group2 | ||
- PWM 7-10 in group3 | ||
- PWM 11-12 in group4 | ||
- PWM 13 in group5 | ||
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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. | ||
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## Video Power Control | ||
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The 9V video power can be turned off/on using GPIO 81 which is already assigned by default to RELAY2. This relay can be controlled either from the GCS or using a transmitter channel (See :ref:`common-auxiliary-functions`) | ||
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## Analog Airspeed Input | ||
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The analog airspeed pin is "4" | ||
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## Battery Monitoring | ||
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The board has a built-in voltage sensor and current sensor. The voltage sensor can handle up to 8S | ||
LiPo batteries. | ||
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The correct battery setting parameters are: | ||
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- BATT_MONITOR 4 | ||
- BATT_VOLT_PIN 10 | ||
- BATT_VOLT_MULT 11 | ||
- BATT_CURR_PIN 11 | ||
- BATT_CURR_MULT 50 | ||
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These are set by default in the firmware and shouldn't need to be adjusted | ||
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## Compass | ||
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The BLITZ Wing H743 does not have a builtin compass, but you can attach an external compass to I2C pins. | ||
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## Loading Firmware | ||
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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. | ||
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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. |
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# setup for LEDs on chan9 | ||
SERVO13_FUNCTION 120 | ||
NTF_LED_TYPES 257 | ||
OSD_TYPE2 5 |
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include ../BlitzH743Pro/hwdef-bl.dat | ||
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APJ_BOARD_ID AP_HW_BlitzH7Wing |
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include ../BlitzH743Pro/hwdef.dat | ||
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APJ_BOARD_ID AP_HW_BlitzH7Wing | ||
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undef SERIAL_ORDER | ||
SERIAL_ORDER OTG1 USART1 USART2 USART3 UART4 EMPTY USART6 UART7 UART8 OTG2 | ||
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undef DEFAULT_SERIAL5_PROTOCOL | ||
define DEFAULT_SERIAL8_PROTOCOL SerialProtocol_ESCTelemetry | ||
undef HAL_FRAME_TYPE_DEFAULT | ||
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undef PC5 | ||
undef BOARD_RSSI_ANA_PIN |