Kiss Ultra FCFC Mini v2 Flight Controller, 20x20, STM32H743, 8S, OSD
Kiss Ultra FCFC Mini v2 Flight Controller, 20x20, STM32H743, 8S, OSD
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Overview
The Kiss Ultra FCFC Mini v2 is a compact flight controller with the same power as the Ultra v2 in a 20x20 package. It combines an STM32H743 processor, integrated graphical OSD, barometric altitude sensing, KISS-compatible connectors, and support for modern digital video systems.
Key Features
- STM32H743 processor running at 480 MHz with 2MB FLASH and 1.28MB RAM
- IIM-42652 SPI gyroscope and BMP388 barometer
- 8-pin ESC connector with KISS compatibility and a current sensor pin; not compatible with FETTEC
- Two KISS-compatible serial ports on 6-pin SER1 and SER3 connectors
- 5V 2A BEC with separate LiPo and USB power, supporting up to 8S
- Overcurrent protection on data lines, USB ESD protection, and an integrated spike absorber
- Dedicated current sensor pad
- Integrated graphical OSD with configurable black and white levels, transparency, ESC configuration, and a 50fps refresh rate
- OSD tools for Crossfire, RC, GPS, video, and motor testing
- BLHeli passthrough, IRC Ghost support, TBS CSRFv3 support, UBX GPS protocol support, battery capacity monitoring, and battery alerts
- DSHOT routing between software and hardware channels
- Support for DJI MSP, DJI WTF, DJI O3, Walksnail, and HD0 systems
- Web-based configuration interface with native Apple Silicon support
Specifications
| Product type | Flight controller |
|---|---|
| Model | Kiss Ultra FCFC Mini v2 |
| Package format | 20x20 |
| Processor | STM32H743, 480 MHz |
| Flash | 2MB |
| RAM | 1.28MB |
| Gyroscope | IIM-42652, SPI |
| Barometer | BMP388 |
| ESC connector | 8-pin, KISS-compatible, with current sensor pin |
| Serial connectors | 2 x 6-pin connectors: SER1 and SER3 |
| Exposed serial ports | 7, including dedicated serials for SA and RC telemetry |
| BEC | 5V, 2A |
| Power capability | Up to 8S |
| Motor support | Up to 4 motors |
| DSHOT support | DSHOT2400 and 1-wire - 8 |
| OSD refresh rate | 50fps |
Software and Configuration
The firmware includes a new STM32 H7 bootloader and VCP driver, smart configuration storage, optimized hardware interface and adaptive filter code, camera control through a real DAC, return-to-home support with barometer data, and no soft serial ports. The OSD provides access to KISS configuration, ESC configuration, battery cell voltage monitoring, and hardware test tools without requiring a separate serial port or OSD firmware update.
The web configuration interface is available at kiss-ultra.com. An OSD mirror is available at this video link. For product support, contact rcdrone.top.
Abbreviations
- KISS: Keep It Super Simple
- FCFC: Fedor Commander Flight Controller
What's Included
- Kiss FCFC Ultra Mini v2 flight controller
- 8-8 cable
- 8-6 legacy cable