MicoAir743v2-AIO-45A
Description:
MicoAir743v2-AIO-45A is an AIO solution from MicoAir that integrates an H743 flight controller and a four-in-one ESC on a single circuit board with a 25.5 × 25.5 mm mounting-hole pattern. The flight-controller section uses a 480 MHz STM32H743VIH6, dual BMI088 + BMI270 IMUs, an SPL06 barometer, and microSD log storage. The ESC section consists of four 45 A, 32-bit open-source AM32 ESCs.
Key Features
STM32H743VIH6, 480 MHz, 2 MB Flash- Dual
BMI088 + BMI270IMUs SPL06barometer and microSD card slot- 7 UARTs, 8 motor outputs, 1 I²C bus, and 1 SWD interface
- LED strip, buzzer, BOOT button, and USB Type-C
- Dual 5 V / 2 A and 12 V / 2 A BECs
- Onboard battery-voltage and current sensing
- Direct DJI O3/O4/O4 Pro interface with MSP DisplayPort support
- 4 × 45 A AM32 ESCs, 48 kHz, supporting PWM / DShot300 / DShot600 and bidirectional DShot
- Supports ArduPilot, PX4, INAV, Betaflight, and Skybrush firmware
Specifications:
| Item | Specification |
|---|---|
| Main MCU | STM32H743VIH6, 480 MHz, 2 MB Flash |
| IMU | Dual BMI088 + BMI270 IMUs |
| Barometer | SPL06 |
| Magnetometer | No onboard magnetometer; supports an external I²C magnetometer |
| Analog OSD | None; HD video transmitters use MSP DisplayPort |
| Log storage | microSD card slot |
| UART | 7: UART1, UART2, UART3, UART4, UART5, UART6, and UART8 |
| Motor outputs | M1–M8; hardware supports DShot / bidirectional DShot, while actual capability depends on the firmware |
| Other outputs | LED strip; corresponds to PWM11 in the firmware resources |
| Peripheral interfaces | 1 I²C, 1 SWD, 2 ADCs, and a buzzer |
| USB | USB Type-C, with D+ / D− pads also provided |
ESC Section:
| Item | Specification |
|---|---|
| ESC firmware | AM32_F4A_4IN1_F421_2.19 |
| PWM frequency | 48 kHz |
| Supported protocols | PWM, DShot300, DShot600, and bidirectional DShot |
| Continuous current | 45 A × 4; adequate cooling must be provided |
| Battery input | 3–6S (approximately 10–27 V) |
| Recommended starting protocol | DShot300 |
Power
| Item | Specification |
|---|---|
| Main power input | 3–6S (approximately 10–27 V) |
| 5 V BEC | Maximum 2 A, for receivers, GPS modules, optical-flow sensors, and other peripherals |
| 12 V BEC | Maximum 2 A, for DJI O3/O4/O4 Pro and similar devices |
Voltage and Current Sensing Factors
| Parameter | ArduPilot | PX4 | Betaflight | INAV |
|---|---|---|---|---|
| Voltage Factor | 21.12 | 21.12 | 211 | 211 |
| Current Factor | 14.14 | 14.14 | 707 | 707 |
Dimensions and Installation
| Item | Specification |
|---|---|
| Mounting-hole pattern | 25.5 × 25.5 mm |
| Mounting-hole diameter | Φ3 mm |
| Dimensions | 36 × 36 × 8 mm |
| Weight | 10 g |
- The arrow on the board points toward the nose by default, and the side with the component markings faces up.
- Secure it with insulating vibration-damping standoffs to prevent screws or carbon-fiber plates from touching pads or components.
- Keep airflow around the ESC MOS area, and do not completely cover it with foam, double-sided tape, or wiring harnesses.
Interfaces and Power
Pin Definition
Typical Wiring
Power Rules
| Interface | Voltage | Typical use | Precautions |
|---|---|---|---|
VBAT |
3–6S | Main power for the flight controller and four-in-one ESC | Never reverse the polarity; confirm the battery specification before soldering |
5V |
5 V | Receivers, GPS modules, optical-flow sensors, rangefinders, and other peripherals | Total load must not exceed 2 A |
12V |
12 V | DJI O3/O4/O4 Pro, cameras, and similar devices | Do not connect devices that support only 5 V |
GND |
0 V | Power and signal reference ground |
ESC Configuration
AM32_F4A_4IN1_F421_2.19- Start with
DShot300. - Bidirectional DShot requires support from both the flight-controller firmware and ESC firmware.
- PX4 and INAV do not currently support bidirectional DShot. If this changes in a future version, refer to the release notes for the corresponding firmware.
- Web-based ESC tool: AM32
Receivers
UART6 is the default RC input. On the H743, the RC function can also be reassigned to another UART.
| Protocol | Recommended wiring | Notes |
|---|---|---|
| SBUS | Signal → RX6 |
One-way signal; also connect power and GND |
| CRSF / ELRS | Receiver TX → RX6; receiver RX → TX6 |
Telemetry supported |
| FPort | Signal → TX6 |
One-wire bidirectional protocol |
| DSM / SRXL | Signal → RX6 |
Verify the receiver supply voltage |
| SRXL2 | Signal → TX6 |
Configure the UART options as required by the protocol in ArduPilot |
| PPM | Not supported | Use a UART receiver protocol |
Battery Monitoring, Magnetometer, and I²C
Battery Monitoring
The flight controller integrates voltage and current sensing. Default factors are listed in the comparison table under “Hardware Specifications.” Use a multimeter and a known current load as references during calibration.
Magnetometer and I²C
- No onboard magnetometer
- An external magnetometer can be connected through
SDA/SCL - Keep the external magnetometer away from battery wires and motors
Flight Controller Firmware
The flight-controller core of MicoAir743v2-AIO-45A uses the MicoAir743v2 firmware target and supports ArduPilot, PX4, INAV, Betaflight, and Skybrush.
Pacakge Includes:
1xMicoAir743v2-AIO-45A
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Read More →Technical Specifications
| Brand | MicoAir |
|---|---|
| Model | AIO-45A |
| Current Rating | 45A |
| SKU | AI6451 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The MicoAir743v2-AIO-45A is a versatile flight controller & accessories used across a wide range of applications including autonomous drones, FPV racing quadcopters, agricultural drones, and surveying and mapping platforms.
Common use cases:
- Central brain for drone stabilization and navigation
- GPS waypoint missions for surveying
- Acro mode flying for FPV freestyle
This product is ideal for drone builders requiring precise flight control.
Technical Tip: F4 processors are good for basic builds; F7 or H7 recommended for advanced features. Ensure firmware compatibility (Betaflight, ArduPilot, iNAV).
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine MicoAir product sourced from authorized channels
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