PowerFin
A triple-core Cortex-A7 flight controller built for high-rate control and clean integration

Overview
PowerFin is a high-performance flight controller powered by three Cortex-A7 cores, with control-loop rates up to 800 Hz. It integrates dual-band Wi-Fi, analog OSD, dual BEC outputs, and a broad set of expansion interfaces. Both analog video and digital systems such as DJI O3 and O4 are supported.
Highlights
- Triple-core processor: 3 × Cortex-A7 at 1.2 GHz
- High-rate control: up to 800 Hz with four bidirectional DSHOT600 outputs
- Wireless configuration: 2.4 GHz / 5 GHz dual-band Wi-Fi, including online motor-direction changes
- Dual BEC outputs: dedicated 5 V / 3 A and 9 V / 3 A rails
- Video-system support: onboard AT7456E analog OSD plus DJI O3, O4, and similar digital systems
- Expandable I/O: UART, SPI, I²C, and CAN connectivity
- Standard mounting: 30.5 mm × 30.5 mm hole pattern
Specifications
| Item | Specification |
|---|---|
| Processor | 3 × Cortex-A7, 1.2 GHz |
| Memory | 128 MB DRAM |
| Control rate | Up to 800 Hz |
| Motor outputs | 4 × bidirectional DSHOT600 |
| Wireless | 2.4 GHz / 5 GHz dual-band Wi-Fi |
| BEC outputs | 5 V / 3 A and 9 V / 3 A |
| Analog OSD | Onboard AT7456E |
| Digital video | Supports DJI O3, O4, and similar systems |
| Expansion | 4 × UART, 1 × SPI, 1 × I²C, 1 × CAN |
| Mounting pattern | 30.5 mm × 30.5 mm |
Board Layout


User Manual
Other Resource
Purchase
Buy the PowerFin beta edition on Taobao
Support
- GitHub: HumpbackLab
- QQ group: 763833895
- Bilibili: HumpbackLab Studio
