About BETAFPV Matrix 1-2S Brushed Flight Controller:
The Matrix Brushed Flight Controller is a long‑awaited upgrade for brushed whoops and FPV drone soccer. This compact powerhouse is specifically engineered for both competitive racing and everyday flying. The onboard brushed ESC delivers a continuous 12A current and supports Turtle Mode, while the MCU is upgraded to the latest STM32G473, offering a 55% increase in computing speed. Choose between the fully integrated 5IN1 version (FC + brushed ESC + 400mW 5.8GHz VTX + serial ELRS RX + OSD) for a clean, hassle-free build, or the 4IN1 version with an external VTX port for custom VTX setups.
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Top highlights
1-2S 12A Brushed ESC: Delivers 12A continuous and 18A peak current with Turtle Mode support for brushed whoops and FPV drone soccer.
STM32G473 MCU: Provides approximately 55% faster processing than the STM32F411 for smoother and more responsive flight control.
Integrated Serial ELRS: Built-in 2.4GHz serial ELRS receiver reduces wiring and simplifies compact FPV drone builds.
Flexible 4IN1 and 5IN1 Options: Choose the 4IN1 with an external VTX port or the 5IN1 with an integrated 400mW 5.8GHz VTX.
Compact AIO Design: Features Betaflight OSD, 16MB Blackbox memory, a 5V/3A BEC and a 26 × 26 mm mounting pattern.
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Attention
Flight controllers are covered for manufacturer defects. Issues arising from user errors, physical crash damage, damage during installation or dismantling, modifications, power surges, electrical fires, or water exposure are not covered.
Bullet Points
-Powerful Brushed ESC – Supports continuous 12A current output (peak 18A) and is fully compatible with 1‑2S batteries for versatile micro drone builds.
-STM32G473 MCU – Upgraded from STM32F411 to the latest STM32G473, delivering a 55% increase in processing speed for smoother flight performance.
-Turtle Mode Support – Flip over after a crash without walking to your drone.
-All‑in‑One Flexibility – Choose the 5IN1 version for simplified installation and maintenance, or the 4IN1 version which retains an external VTX port.
-Race‑Ready 5.8GHz VTX (5IN1 only) – High‑quality VTX with a maximum output of 400mW, providing stable frequency and precise power control.
-Frequency: 5.8GHz 48 channels, with raceband 5658-5917MHz
-Channel SEL: SmartAudio2.0
-Modulation Type: FM
-Frequency Control: PLL
-All Harmonics: Max -50dBm
-Frequency Stability: ±100KHz (Typ.)
-Frequency Precision: ±200KHz (Typ.)
-Channel Carrier Error: ±1.5dB
-Antenna Port: 50Ω
-Operating Temperature: -10℃ to +80℃
Diagram
Matrix Brushed Flight Controller (5IN1):
Matrix Brushed Flight Controller (4IN1):
Highly-Integration 5IN1 & 4IN1
The Matrix Brushed Flight Controller is available in two versions: 5IN1 and 4IN1. The 5IN1 integrates flight controller, brushed ESC, VTX, serial ELRS receiver, OSD, and Blackbox for easy installation and maintenance. The high‑quality 400mW 5.8GHz VTX delivers precise and stable frequency, meeting the demands of racing while being perfectly suitable for everyday flight. And the 4IN1 retains a port for an external VTX, giving you the freedom to use your preferred video transmitter.
12A Brushed ESC with Turtle Mode
The onboard ESC provides 12A continuous (18A peak) output and supports 1‑2S battery operation. Turtle Mode is also available — after a crash, simply flip the drone over and continue flying.
Firmware Note: Betaflight has not yet released official firmware compatible with this brushed FC board, so please do not flash the official Betaflight firmware and pay attention to future support updates.
The onboard ESC provides 12A continuous (18A peak) output and supports 1‑2S battery operation. Turtle Mode is also available — after a crash, simply flip the drone over and continue flying.
In Betaflight, go to the Modes tab and find "FLIP OVER AFTER CRASH".
Assign an AUX channel (AUX4 by default) and set the activation range.
After a crash, enable the Turtle Mode switch, then arm the motors. Use your radio to flip the drone over.
Disable Turtle Mode, then re‑arm the motors to resume normal flight.
Enhanced MCU Performance
The MCU has been upgraded from the STM32F411 (used in the F4 1S 5A FC) to the latest STM32G473C, resulting in a 55% increase in computing speed. This means smoother control response and a more locked‑in flight experience.
Serial ELRS 2.4G RX
Serial ELRS 2.4G RX uses the Crossfire serial protocol (CRSF protocol) to communicate between the receiver and the flight controller board. So the Serial ELRS 2.4G RX is available to support upgrading to ELRS V3.0 with no need to flash Betaflight flight controller firmware. Enter binding status by powering on/off three times.
-Plug in and unplug the flight controller three times;
-Make sure the RX LED is doing a quick double blink, which indicates the receiver is in bind mode;
-Make sure the RF TX module or radio transmitter enters binding status, which sends out a binding pulse;
-If the receiver has a solid light, it's bound.
The Serial ELRS 2.4G RX can be updated via Wi-Fi or Betaflight serial passthrough. Here is the way to update the Serial ELRS 2.4G RX firmware through passthrough.
-Plug in your FC to your computer, connect to ExpressLRS Configurator instead of Betaflight Configurator;
-Choose target "BETAFPV 2.4GHz AIO RX";
-Flash using the BetaflightPassthrough option in ExpressLRS Configurator.
Please note that by default UART3 is connected to the RX. To release UART3, please remove the resistor. Additionally, this FC reserves 3 complete full-featured serial ports that can be used for external CRSF/SBUS receivers, GPS, HD VTX, or other serial devices. You can refer to the picture below.
