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.

Matrix Brushed Flight Controller

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.

Specifications

FC

MCU: STM32G473CEU6
Gyro: BMI270 (3.2KHz)
Blackbox Memory: 16MB
Sensor: Voltage & current
BEC: 5V, max. 3A
UART (5IN1): UART 1, UART 2 (for VTX), UART 3 (for RX), UART 4
UART (4IN1): UART 1 (for VTX), UART 2 , UART 3 (for RX)
BetaFlight OSD: AT7456E
ESC: Continuous 12A
RX: Serial ELRS 2.4GHz (V3.4.3)
VTX: 5.8GHz 48 channels, max. 400mW
FC Firmware: Betaflight_4.5.2_BETAFPVG473_V3 (5IN1), Betaflight_4.5.2_BETAFPVG473_V2 (4IN1)
USB Port: SH1.0-4Pin
Motor Plug: JST1.25
Battery Connector: BT2.0
Mounting Size: 26mm x 26mm
Weight: 3.80±0.1g (5IN1), 3.56±0.1g (4IN1)

ESC

Power Input: 1-2S
Current: Continuous 12A, peak 18A
Digital Signal Protocol: Brushed

VTX (5IN1 Only)

Output Power: 25/100/200/400/PIT
Frequency: 5.8GHz 48 channels, with raceband 5658-5917MHz
Channel SEL: SmartAudio2.0
Modulation Type: FM
Frequency Control: PLL
All Harmonic: Max -50dBm
Frequency Stability: ±100KHz (Typ.)
Frequency Precision: ±200KHz (Typ.)
Channel Ccarrier 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.

Matrix Brushed Flight Controller AIO

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.

Matrix Brushed Flight Controller ESC

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 update.

Click to download the firmware for Matrix Brushed Flight Controller.

Turtle Mode Instructions:

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.

Matrix Brushed Flight Controller MCU

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 power on/off three times.

Plugin 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.

How to flash firmware via Wi-Fi here.

How to Use Serial Ports, Intergrated RX and VTX

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.

Matrix Brushed Flight Controller (5IN1):

Matrix Brushed Flight Controller (4IN1):

Recommeded Parts

Motors: 7x16mm Brushed Motors
Camera: Air Camera, C03 FPV Micro Camera

Package

1 * Matrix Brushed Flight Controller (5IN1)
1 * 5.8G Antenna
1 * Type-C to SH1.0 Adapter
1 * SH1.0-4Pin Adapter Cable
4 * M1.2*4 Self-tapping Screws
4 * M1.4*5 Self-tapping Screws
4 * Shock Absorbing Balls

1 * Matrix Brushed Flight Controller (4IN1)
1 * Type-C to SH1.0 Adapter
1 * SH1.0-4Pin Adapter Cable
4 * M1.2*4 Self-tapping Screws
4 * M1.4*5 Self-tapping Screws
4 * Shock Absorbing Balls

Matrix Brushed Flight Controller 4IN1 package

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