BetaFPV Matrix 1S Brushless Flight Controller (5IN1 II)

Overview

The BetaFPV Matrix 1S 5IN1 II is a brushless flight controller that integrates FC + ESC + VTX + RX + OSD in a single board for 1S whoop builds. It features a 12A continuous ESC, 3-point mounting, and two build options (solder-free or solder-required) for different installation and weight preferences.

Key Features

• 5-in-1 integration: FC + ESC + 5.8GHz VTX + serial ELRS 2.4GHz RX + Betaflight OSD
• ESC output: 12A continuous (18A peak)
• 3-point mounting and 1.0mm PCB thickness
• Two versions: solder-free (pre-soldered motor connectors and power cable) or solder-required (larger solder pads for DIY wiring)
• MCU shown on product graphics: STM32G473CEU6

Specifications

Flight Controller (FC)

ESC

VTX

Board Layout Labels (from diagrams)

Top Front

• Gyroscope
• VTX-ANT
• FC-LED1- (Green)
• STM32G473
• FC-CLK
• FC-DIO
• GND
• TX1
• RX1
• 5V
• FC-LED2- (Blue)
• Flash-16M
• BATT+
• GND
• RX-ANT
• RX&FC-BOOT0
• MM32F003
• VTX-LED
• CAM
• GND
• 5V
• 5V
• RGB-LED
• GND
• CAM IN
• WiFi-ANT
• ESP8285
• SX128X
• Current Sensor

Bottom Front

• 5.8G VTX Chip
• ESC1, ESC2, ESC3, ESC4
• BZ+, BZ-
• FC&RX-BOOT
• AT7456E
• USB
• USB-D-, USB-D+

Configuration Notes

• VTX power: higher VTX power consumes more energy and generates more heat; for indoor scenarios, 25~100mW is recommended for improved flight time.
• VTX antenna: connect and install the 5.8GHz antenna before powering on, or set transmission power to 0 to help avoid burnout.
• UART defaults: UART2 is connected to the VTX and UART3 is connected to the RX. To release UART3, remove the resistor.
• Betaflight port setup text shown in diagrams: set UART2 Peripherals as VTX (TBS SmartAudio), and set UART3 as Serial RX for the receiver.
• Receiver setup text shown in diagrams: set Receiver Mode to “Serial-based receiver” and set Serial Receiver Provider to “CRSF”.

Serial ELRS 2.4G RX Notes

• Uses CRSF (Crossfire serial protocol) for communication between receiver and flight controller.
• Bind mode entry: power on/off three times; RX LED quick double blink indicates bind mode; solid light indicates bound.
• Firmware update methods stated: via Wi-Fi or Betaflight serial passthrough.

Firmware & Downloads

• Matrix 1S 5IN1 II FC firmware + CLI: Betaflight_4.5.3_BETAFPVG473_V2 (download + CLI dump)
• Betaflight release reference: https://github.com/betaflight/betaflight/releases/tag/4.5.3
• How to flash ELRS via Wi-Fi: Betafpv support article
• Bluejay project: https://github.com/bird-sanctuary/bluejay
• ESC Configurator: https://preview.esc-configurator.com/
• BLHeliSuite16714903: Download link
• Bluejay releases: Download page (choose A_X_5_96KHz_V0.19.hex)

Note stated by the manufacturer: do not flash the ESC firmware with a shorter interval, otherwise there may be a chance of stalling and burning the flight controller.

What’s Included

Solder-free Version

• 1 x Matrix 1S 5IN1 II Brushless Flight Controller (Solder-free Version)
• 1 x Type-C to SH1.0 adapter
• 1 x SH1.0-4Pin adapter cable
• 1 x 5.8G antenna
• 4 x M1.2*4 self-tapping screws
• 4 x M1.4*5 self-tapping screws
• 4 x shock absorbing balls

Solder-required Version

• 1 x Matrix 1S 5IN1 II Brushless Flight Controller (Solder-required Version)
• 4 x JST 1.25mm gold plated connectors
• 1 x BT2.0 U cable
• 1 x Type-C to SH1.0 adapter
• 1 x SH1.0-4Pin adapter cable
• 1 x 5.8G antenna
• 4 x M1.2*4 self-tapping screws
• 4 x M1.4*5 self-tapping screws
• 4 x shock absorbing balls

Applications

• 1S brushless whoop builds requiring an integrated FC/ESC/VTX/RX/OSD solution
• Builders choosing between quick installation (solder-free) and custom wiring/weight saving (solder-required)

Support

For pre-sales and setup questions (including UART/VTX/RX configuration), contact support@rcdrone.top or visit https://rcdrone.top/.

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.
• VTX power: higher VTX power consumes more energy and generates more heat, reducing flight time; 25~100mW is recommended for indoor scenarios.
• Install the image transmission antenna before powering on, or set transmission power to 0 to help avoid burnout.

Details