MicoAir743-AIO-35A
STM32H743VIH6, BMI088+BMI270, DPS310, 7xUART, 8xPWM, AM32 35A ESCx4
MicoAir743-AIO-35A
A highly integrated H743 AIO that supports multiple firmware: Ardupilot/PX4/Betaflight/INAV
Flight Controller
- MCU: STM32H743VIH6, 480MHz, 2MB Flash
- IMU: BMI088+BMI270
- Baro: DPS310
- TF Card Slot
- 7x UART
- 8x PWM
- 1x I2C
- 1x SWD
- 2x ADC (VBAT, Current)
- 1x LED Strip
- 1x Beeper
- USB Type-C
- BEC 5V 2A output (for controller, receiver, GPS, optical flow or other devices)
- BEC 12V 2A output (for DJI O3/Vista)
ESC
- Firmware: AM32_MICOAIR_743_AIO_F421_2.17
- PWM Freq: 48KHz
- ESC Protocol: PWM/DShot300/DShot600 (support BDShot)
- Continuous Current: 35A * 4
- Voltage Support: 3-6S (8.5V-27V)
Tutorial: How to Configure and Update AM32 ESC on MicoAir743-AIO
Voltage&Current Monitoring
| Ardupilot | PX4 | Betaflight | INAV | |
| Voltage Factor | 21.12 | 21.12 | 211 | 211 |
| Current Factor | 14.14 | 14.14 | 707 | 707 |
UART Mapping (Ardupilot)
- 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)
UART Mapping (PX4)
- ttyACM0 -> USB
- ttyS0 -> TELEM1 -> UART1
- ttyS1 -> TELEM2 -> UART2
- ttyS2 -> GPS1 -> UART3
- ttyS3 -> TELEM3-> UART4
- ttyS4 -> RC -> UART6
- ttyS5 -> ESC -> UART7
- ttyS6 -> TELEM4 -> UART8
RC Input (Ardupilot)
23.OSD Support (Ardupilot)
VTX Support
PWM Output
The MicoAir743-AIO supports up to 8 PWM outputs.
Channels 1-8 support DShot/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 are group 3
Compass
Physical
- Mounting: 25.5 x 25.5mm, Φ3mm
- Dimensions: 36 x 36 x 8 mm
- Weight: 10g
Related-links
| STM32H743VIH6 | ||||
|---|---|---|---|---|
| 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 | |||
| 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 | ||
| LED Strip | TIM4/CH3 | LED Strip | PD14 | |
| Beeper | TIM4/CH4 | Beeper | PD15 | |
| 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-AIO supports Ardupilot/PX4/INAV/Betaflight.
The flight controller part of MicoAir743-AIO is almost the same as MicoAir743, except for:
- Change M9(TIM4->CH3) to LED Strip control pin
- Change M10(TIM4->CH4) to Beep- control pin
- Delete IST8310 (on board compass)
- Delete AT7456E (on board osd)
MicoAir743-AIO can share the same firmware with MicoAir743, unless LED strip control and beeper are required.
Ardupilot
MicoAir743-AIO is officially supported by Ardupilot starting from version 4.6.0, 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-AIO:
ArduPilot Custom Firmware Builder
Old version(v4.5.7) firmware can be download here:
MicoAir743-AIO/Firmware/Ardupilot(v4.5.7)
Skybrush
Skybrush is an open-core project for drone show.
Skybrush firmware for MioAir743-AIO
PX4
MicoAir743-AIO is officially supported by PX4 from version 1.16.0.
You can also download the firmware and bootloader build by us (1.14.3&1.15.2).
The board target in PX4 is “micoair_h743-aio”.
Compile locally
Bootloader:
make micoair_h743-aio_bootloaderFirmware:
make micoair_h743-aio_default
Betaflight
MicoAir743 is officially supported by Betaflight from version 4.5.0.
INAV
MicoAir743-AIO is officially supported by INAV from version 8.0.0.
