MicoAir743
STM32H743VIT6, BMI088/BMI270, DPS310, IST8310, OSD, 7xUART, 1xCAN, 1xI2C, 10xPWM, 5V 3A BEC, 9V 3A BEC
MicoAir743 Flight Controller
High performance H743 Flight controller, with dual IMU and compass sensor built-in, supports Ardupilot/PX4/INAV/Betaflight
Specifications
- MCU: STM32H743VIT6, 480MHz, 2MB Flash
- IMU: BMI088+BMI270
- Baro: DPS310
- Compass: IST8310
- OSD: AT7456E
- MicroSD Card Slot
- 7x UART
- 10x PWM
- 1x CAN
- 1x I2C
- 1x SWD
- 2x ADC (VBAT, Current)
- USB Type-C
- DJI O3/O4 VTX connector
- BEC 5V 3A output (for controller, receiver, GPS, optical flow or other devices)
- BEC 9V 3A output (for video transmitter, camera)
- VBAT Input Range: 2-6S (6-27V)
- SERIAL0 -> USB
- SERIAL1 -> UART1 (MAVLink2, DMA-enabled)
- SERIAL2 -> UART2 (VTX-HD, DMA-enabled)
- SERIAL3 -> UART3 (GPS, DMA-enabled)
- SERIAL4 -> UART4 (MAVLink2, DMA-enabled)
- SERIAL5 -> UART6 (RCIN, DMA–enabled)
- SERIAL6-> UART7 (ESC Telemetry, DMA-enabled)
- SERIAL7 -> UART8 (DMA–enabled)
- ttyACM0 -> USB
- ttyS0->TELEM1 -> UART1
- ttyS1->TELEM2 -> UART2
- ttyS2->GPS1 -> UART3
- ttyS3->TELEM3-> UART4
- ttyS4->RC -> UART6
- ttyS5->URT6 -> UART7
- ttyS6->TELEM4/SERIAL4 -> UART8
23.The MicoAir743 supports up to 10 PWM outputs.
Channels 1-10 support DShot.
Channels 1-8 support bi-directional DShot.
(currently PX4&INAV not support BDShot function)
PWM output share grouped and every group must use the same output protocol:
1,2,3,4 are group 1
5, 6 are group 2
7,8,9,10 are group 3
- BATT_VOLT_PIN 10
- BATT_CURR_PIN 11
- BATT_VOLT_MULT 21.2
- BATT_CURR_SCALE 40.2
Compass
Physical
- Mounting: 30.5 x 30.5mm, Φ4mm
- Dimensions: 36 x 36 x 8 mm
- Weight: 9g
- 3D Model (step)
| STM32H743VIT6 | ||||
|---|---|---|---|---|
| IMU | BMI270 | SPI2 | MOSI | PC3 |
| MISO | PC2 | |||
| SCLK | PD3 | |||
| BMI270_CS | PA15 | |||
| BMI088 | SPI2 | MOSI | PC3 | |
| MISO | PC2 | |||
| SCLK | PD3 | |||
| BMI088_GYRO_CS | PD5 | |||
| BMI088_ACCEL_CS | PD4 | |||
| Barometer | DPS310 | I2C2 | SCL | PB10 |
| SDA | PB11 | |||
| Compass | IST8310 | I2C2 | SCL | PB10 |
| SDA | PB11 | |||
| Motor | PWM | TIM1/CH4 | M1 | PE14 |
| TIM1/CH3 | M2 | PE13 | ||
| TIM1/CH2 | M3 | PE11 | ||
| TIM1/CH1 | M4 | PE9 | ||
| TIM3/CH4 | M5 | PB1 | ||
| TIM3/CH3 | M6 | PB0 | ||
| TIM4/CH1 | M7 | PD12 | ||
| TIM4/CH2 | M8 | PD13 | ||
| TIM4/CH3 | M9 | PD14 | ||
| TIM4/CH4 | M10 | PD15 | ||
| OSD | AT7456E | SPI1 | MOSI | PA7 |
| MISO | PA6 | |||
| SCLK | PA5 | |||
| OSD_CS | PB12 | |||
| OSC | external | 8MHz | OSC_IN | PH0 |
| OSC_OUT | PH1 | |||
| LED | GPIO_OUTPUT | RED | PE5 | |
| BLUE | PE4 | |||
| GREEN | PE6 | |||
| KEY | BOOT | BOOT0 | ||
| I2C | I2C1 | SDA | PB7 | |
| SCL | PB6 | |||
| UART | UART1 | TX | PA9 | |
| RX | PA10 | |||
| VTX-HD | UART2 | TX | PA2 | |
| RX | PA3 | |||
| GPS | UART3 | TX | PD8 | |
| RX | PD9 | |||
| UART4 | TX | PA0 | ||
| RX | PA1 | |||
| RCIN | UART6 | TX | PC6 | |
| RX | PC7 | |||
| ESC_Telemetry | UART7 | RX | PE7 | |
| UART8 | TX | PE1 | ||
| RX | PE0 | |||
| USB | USB | USB_DM | PA11 | |
| USB_DP | PA12 | |||
| SD Card | SDMMC1 | D0 | PC8 | |
| D1 | PC9 | |||
| D2 | PC10 | |||
| D3 | PC11 | |||
| CLK | PC12 | |||
| CMD | PD2 | |||
| DEBUG | SWD | SWDIO | PA13 | |
| SWCLK | PA14 | |||
| BATTERY | (Ratio 1:21) | ADC | Voltage | PC0 |
| Current | PC1 | |||
MicoAir743 flight controller supports Ardupilot/PX4/INAV/Betaflight firmware.
Ardupilot
MicoAir743 is officially supported by Ardupilot starting from version 4.6, you can update the firmware through Mission Planner or download all the firmware files(Copter/Heli/Plane/Rover/etc) here:
Also you can use the online firmware builder provided by Ardupilot to customize your firmware for MicoAir743:
ArduPilot Custom Firmware Builder
Old version(v4.5.1) firmware can be download here:
MicoAir743/Firmware/Ardupilot(v4.5.1)
PX4
MicoAir743 is officially supported by PX4 from version 1.16.0.
You can also download the firmware and bootloader build by us (1.13.3&1.14.3&1.15.0).
The board target in PX4 is “micoair_h743”.
Compile locally
Minderring/PX4-Autopilot at micoair743-v1.13.3
Minderring/PX4-Autopilot at micoair743-v1.14.3
Minderring/PX4-Autopilot at micoair743-v1.15.0
Bootloader:
make micoair_h743_bootloaderFirmware:
make micoair_h743_default
Betaflight
MicoAir743 is officially supported by Betaflight from version 4.5.0.
Enable the Bi-DShot:
set dshot_bitbang = ON
save
INAV
MicoAir743 is officially supported by INAV from version 8.0.0.
Do not use INAV Configurator to flash 7.1.2 online firmware into MicoAir743, as it still has a bug which cause IMU work abnormaly.
(INAV 8.0 RC3 has fixed the long run issue with sd card)
Here is the INAV firmware for MicoAir743 build by us.