FETtec G4-N Flight Controller
Best flight controller for performance-focused FPV drone builders.
Experience next-generation flight control with the FETtec G4-N Flight Controller. Engineered for FPV enthusiasts, it boasts a powerful STM32G473 processor and an advanced IIM-42652 gyro for incredibly smooth and responsive flight. Enhanced IO protection safeguards against electrical issues, while solder-free connectors simplify setup. This controller supports high-speed DSHOT2400 and offers versatile mounting options, making it a robust and reliable choice for demanding drone builds. It runs on FETtec ALPHA FC Firmware, ensuring compatibility and advanced tuning capabilities.
$84.95
Owner Satisfaction
4.5
/ 5
Category Rank
607
/ 1544
#607 in Development Boards
Price vs Category Average
-3%
Below average
Processor
32473180
/ STMG (MHz) with Math accelerator
Who it's for
- Competitive pilots needing maximum processing speed and flight responsiveness
- Builders seeking a streamlined, plug-and-play experience with FETtec components
- Drone racers constructing lightweight, space-constrained micro quadcopters
Who should skip it
- Betaflight enthusiasts who prefer open-source flexibility over proprietary firmware
- Budget-conscious hobbyists looking for more affordable flight controller alternatives
- Novice builders who struggle with intricate, high-density soldering tasks
Performance breakdown
Processing Power
The STM32G473 chip handles complex flight calculations with remarkable speed.
Flight Stability
The IIM-42652 gyro delivers exceptionally smooth and responsive aerial maneuvers.
Installation Ease
Solder-free connectors significantly reduce setup time for custom drone builds.
Electrical Durability
Robust IO protection effectively shields sensitive components from unexpected voltage spikes.
Firmware Versatility
ALPHA FC firmware offers deep tuning capabilities for advanced pilot customization.
Mounting Flexibility
Dual mounting patterns ensure compatibility with a wide range of frames.
Key Specs
Processor
STM32G473 (180MHz) with Math accelerator
Gyro
IIM-42652 SPI
Supply Voltage
6-27V (2S-6S Lipo)
BEC Output
2x 2A onboard BECs, one switchable 5V/16V
Mounting Pattern
20x20mm (M2/M3) and 30x30mm (M3)
Connectors
JST-SH-1mm type
Serial Ports
5 UARTs
Weight
5.37g
Features
- Next-gen STM32 G4 MCU with math accelerator
- New IIM-42652 Gyro for superior flight
- All IOs protected against voltage spikes
- Supports high-speed DSHOT2400 protocol
- Dual onboard BECs, one switchable
- Solder-free ESC connection
- Updated onboard OSD with full tuning
- Compatible with FETtec ALPHA FC Firmware
What customers say
Pilots consistently praise the FETtec G4 N for its exceptional build quality and robust performance. This flight controller is highlighted for its reliability, offering a remarkably smooth and locked in flight experience from the start. The premium components and dependable performance make it a worthwhile investment for those seeking high end hardware that simply works. It is a top choice for pilots prioritizing consistent, reliable operation.
Know before you buy
The STM32G473 features a dedicated math accelerator that allows the flight controller to process complex calculations much faster than previous generations. This results in significantly smoother flight performance and more precise handling, especially during aggressive maneuvers.
The FETtec G4-N is designed for a solder-free connection to compatible FETtec ESCs using the provided connectors. If you are using third-party ESCs, you will need to verify pinout compatibility and may need to solder connections manually.
The board includes two 2A BECs, one of which can be switched between 5V and 16V. This flexibility allows you to power different peripherals, such as high-voltage video transmitters or cameras, directly from the flight controller without needing extra voltage regulators.
Yes, the G4-N is highly versatile and supports both 20x20mm (M2/M3) and 30x30mm (M3) mounting patterns. This makes it compatible with a wide range of drone frames, from smaller builds to larger racing setups.
This controller runs on the FETtec ALPHA FC Firmware. This ecosystem is specifically optimized for FETtec hardware to ensure reliable performance and provides access to advanced tuning features tailored for this processor.
All IO ports are protected against voltage spikes, which helps prevent electrical damage if a component shorts out or if you experience a power surge during a crash. It adds a layer of durability to the board, potentially saving your electronics from permanent failure.
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