Product overview
The Hongfei-listed APO22mini Plus Flight Controller provides flight-control electronics for small-load UAV integration. Its stated applications include multirotors carrying less than 30 kg, fixed-wing aircraft, VTOL fixed-wing aircraft, racing drones and loitering munitions. The hardware combines an STM32H743 processor with two ICM-42688-P accelerometer and gyroscope sets and one MS5611 barometer. Double-sided shielding addresses external interference and impurity ingress. At 46 × 46 × 14 mm and 22 g, the controller occupies a compact installation envelope.
Integration connections comprise 12 PWM outputs, two I2C channels, one CAN channel, seven extended UARTs, one S.Bus interface and two voltage-monitoring channels. Positioning uses an external high-precision GNSS receiver and compass. The controller accepts DC 14.8–50.4 V, while voltage monitoring covers 12.6–50.4 V; power consumption is below 10 W. Its operating range is −20 to 85 °C and storage range is −40 to 85 °C. The inertial sensor’s separate −40 to +85 °C operating specification does not extend the controller’s stated operating range.
Dedicated firmware supports customized functions and PID adjustment. Dual inertial sensing supports automatic data-source switching after partial sensor failure, while flight-status monitoring covers voltage, inertial navigation, GPS and links. Ground-station software provides telemetry, alarms, remote control, route planning and selectable data recording. Navigation functions include user waypoints, KML boundary import and automatic route generation. Protection functions address low voltage, flight radius, minimum altitude, geofencing, communication loss and GNSS loss, alongside return-to-home. Remote-control support is described as covering most market protocols, without an enumerated compatibility list.
Specifications
| Specification | Value & conditions |
|---|---|
| Processor | STM32H743 |
| Accelerometers | 2 sets, ICM-42688-P |
| Barometer | 1 set, MS5611 |
| Gyroscopes | 2 sets, ICM-42688-P |
| Voltage monitoring range | 12.6–50.4 V |
| Satellite positioning | External high-precision GNSS + compassExternal positioning equipment. |
| Total interface channels | Greater than 25 channels |
| PWM control channels | 12 channels |
| I2C channels | 2 channels |
| CAN communication interface | 1 channel |
| Extended UARTs | 7 channels |
| S.Bus interface | 1 channel |
| Voltage monitoring channels | 2 channels |
| Power supply range | DC 14.8–50.4 VDC power supply. |
| Dimensions | 46 × 46 × 14 mm |
| Power consumption | Less than 10 W |
| Operating temperature | −20 to 85 °CFlight controller operating temperature. |
| Weight | 22 g |
| Storage temperature | −40 to 85 °CStorage temperature. |
| Processor core | Cortex-M7 with double-precision floating-point unit |
| Processor operating frequency | Up to 480 MHz |
| Flash memory | 2 MB |
| RAM | 1 MB |
| Inertial sensor type | 3-axis gyroscope + 3-axis accelerometerICM-42688P sensor. |
| Gyroscope dynamic range | ±2000°/sICM-42688P sensor. |
| Sensor operating temperature range | −40 to +85 °CICM-42688P sensor operating temperature. |
| Accelerometer range | ±16 gICM-42688P sensor. |
| Gyroscope noise | 0.028 dps/√HzICM-42688P sensor. |
| Accelerometer noise | 70 dps/√HzICM-42688P sensor. |
| Shield architecture | Double-sided shielding to reduce external interference and prevent impurity ingress |
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