Q: Who is this BETAFPV Matrix 1S flight controller best for?

A: Ideal for Tiny Whoop and 1S micro FPV builds, perfect for beginners and indoor pilots looking for a lightweight, all-in-one solution.

Q: Is this flight controller beginner-friendly?

A: Yes. The 4IN1 AIO design simplifies wiring and installation, making it much easier for beginners compared to separate ESC setups.

Q: What’s the difference between 3IN1 and 4IN1 versions?

A: The 4IN1 version integrates all four ESC channels into one board for a cleaner, simpler build, while the 3IN1 version offers an alternative layout for specific setups.

Q: What flight performance can I expect?

A: Smooth and stable flight performance optimized for 1S whoops, with responsive control ideal for indoor flying and light freestyle.

Q: What drones is it compatible with?

A: Designed for 1S Tiny Whoop and micro FPV drones, compatible with most lightweight frames using standard mounting patterns.

Q: What is the main advantage of this AIO board?

A: All-in-one design reduces weight, saves space, and improves reliability—perfect for compact builds.

Q: Does it include a built-in ESC?

A: Yes, the 4IN1 version includes an integrated 4-in-1 ESC, simplifying wiring and reducing build complexity.

Q: What motors is it compatible with?

A: Compatible with most 1S brushless motors commonly used in Tiny Whoop builds.

Q: Does it support ELRS or external receivers?

A: Depends on the version; some variants include built-in receivers, while others support external receiver connection via UART.

Q: What firmware does it use?

A: Typically runs Betaflight firmware, allowing easy configuration and tuning.

Q: Is soldering required?

A: Minimal soldering is required compared to traditional setups, mainly for motor and optional receiver connections.

Q: Does it require tuning before flight?

A: Basic setup is ready to fly, but tuning can improve performance depending on your build.

BETAFPV Matrix 1S Brushless Flight Controller (3IN1/4IN1)

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BETAFPV 0702 Brushless Motors (2026) for 65mm FPV Whoop 1S
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Top highlights

4IN1 AIO design with built-in FC + ESC + OSD, optimized for analog FPV whoop builds.
Powerful STM32G473 MCU delivers faster processing and smoother flight than F411-based FCs.
12A continuous ESC (18A peak) provides stronger punch and better stability for aggressive flying.
Advanced BEC ensures stable voltage output even at low battery levels for reliable video transmission.
Lightweight ~3.6g design reduces overall drone weight while maintaining durability.

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betafpv matrix 1s brushless flight controller show

Enhanced Continuous 12A ESC

HD image transmission adds weight to 1S whoops, demanding stronger power and higher ESC overcurrent capacity. Our engineers exceeded expectations, delivering a robust ESC with 12A continuous output and 18A peak capacity on the iconic "cross" flight controller. This ensures optimal thrust-to-weight ratio, reliable performance, and worry-free high-definition flights.

betafpv matrix 1s brushless flight controller power

Faster Processing, Smoother Flight

Powered by STM32G473 MCU, delivering significantly faster response than F4 FCs.
Improves PID loop accuracy and flight stability.

betafpv matrix 1s brushless flight controller upgrade

Ultra-Light 3.6g Design

Minimizes overall drone weight for improved agility and longer flight time.
Perfect for whoop racing and freestyle.

betafpv matrix 1s brushless flight controller weight

Ultra-Low Voltage Support, Zero Blackouts

High-performance digital VTX requires consistent current, especially on 1S whoops where voltage can drop to 3.3V. Our advanced BEC is engineered to deliver a powerful 3A output even at ultra-low voltages down to 2.85V. This ensures a stable, flicker-free image transmission during critical low-battery moments, giving you the best chance to recover your drone safely.

betafpv matrix 1s brushless flight controller data

Effortless Setup and Maintenance

The Matrix 1S 3IN1 HD FC is designed to maximize your flight time by minimizing setup hassle. Equipped with convenient motor plugs and a SH1.0-6Pin HD digital port, it allows for a completely solder-free installation and maintenance process. Now, you can focus more on enjoying high-definition flight experiences instead of dealing with complex tools.

betafpv matrix 1s brushless flight controller setup

Attention

● Crafted for newcomers and recreational pilots, the Matrix FC features a robust 1mm board for enhanced durability, a solder-free design for easy installation, and a beginner-friendly experience. For advanced pilots, the ultra-thin and lightweight Air FC is the definitive choice, engineered with race-winning agility to push the boundaries of FPV flight performance.

● 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

● Dual DNA: 3IN1 (FC, ESC, and ELRS 2.4G RX) for DJI O4 digital dominance (omits analog OSD), 4IN1 for analog mastery with OSD.

● STM32G473 MCU: 55% faster processing than F411 for responsive tuning.

● Stable Video Transmission: Features a newly developed BEC to ensure consistent power delivery for seamless HD performance.

● Enhanced Overcurrent Capacity: Supports 12A continuous current and 18A peak ESC, providing robust performance for demanding flights.

● Reliable Precision: Includes an independent 3.3V LDO design to deliver stable, interference-free power directly to the IMU for accurate control.

● Whoop-ready Installation: The 3IN1 is equipped with motor plugs and a SH1.0-6Pin HD digital port for a hassle-free installation and maintenance experience, while the 4IN1 has external VTX soldering pads for protocol flexibility.

How to Use Serial Ports, Intergrated RX and VTX

UART3 is connected to the built-in serial ELRS RX. To release UART3, please remove the resistor. Additionally, this FC reserves 2 complete full-featured serial ports that can be used for external serial receivers, GPS, HD VTX, or other serial devices. You can refer to the picture below.

betafpv matrix 1s brushless flight controller serial ports

betafpv matrix 1s brushless flight controller configuration

Diagram

Matrix 1S Brushless Flight Controller (4IN1):

BETAFPV Matrix 1S 4IN1 Brushless Flight Controller Buying Guide

Why Choose the Matrix 1S 4IN1?

A Tiny Whoop may be small, but its flight controller has to handle several demanding jobs at once.

The Matrix 1S 4IN1 integrates the flight controller, 1S ESC and ELRS receiver while providing analog OSD support and solder pads for an external VTX. This makes it a practical choice for pilots who want to build or upgrade an analog 1S whoop without adding separate receiver and FC boards.

Designed for Analog 1S Tiny Whoops

The biggest reason to choose the 4IN1 version is its analog FPV architecture.

The board includes an AT7456E OSD chip and dedicated solder pads for an external analog VTX. This allows pilots to select their preferred analog camera and VTX instead of being locked into an integrated digital video system.

That makes it particularly suitable for lightweight whoops where analog FPV remains popular because of its low weight, low latency and simple hardware requirements.

Air65
Air75
Meteor65 Pro
Meteor75 Pro

It also lists 0702 II, 0802SE and 1102 motors as compatible motor options, with propeller recommendations ranging from 31mm to 45mm depending on the build.

Recommended Motor Selection

Motor Class	Best Platform	Main Priority
0702	65mm ultralight whoop	Minimum weight
0802	65–75mm whoop	Balance of weight and thrust
1102	75mm / heavier 1S build	Higher thrust and payload capability

Choosing the Right Propeller

Propeller	Typical Use	Flight Character
31mm 3-blade	65mm ultralight whoop	Light and responsive
35mm 3-blade	65–75mm whoop	Balanced thrust
45mm 3-blade	75mm whoop	Higher thrust

Smaller propellers generally suit lightweight 65mm builds, while larger propellers can provide more lift for heavier 75mm platforms.

When changing propeller size, remember that the motor load also changes. A larger or more aggressive propeller can increase current demand significantly.

Recommended Analog Tiny Whoop Setup

Component	Recommended Direction
FC	BETAFPV Matrix 1S 4IN1
Motor	0702 / 0802-class
Battery	1S 300–450mAh
Propeller	31–35mm 3-blade
Camera	Lightweight analog FPV camera
VTX	Lightweight analog VTX
Receiver	Built-in ELRS 2.4GHz
Frame	65mm Tiny Whoop

Component	Recommended Direction
FC	BETAFPV Matrix 1S 4IN1
Motor	0802 / 1102-class
Battery	1S 450mAh class
Propeller	35–45mm 3-blade
Camera	Analog FPV camera
VTX	External analog VTX
Receiver	Built-in ELRS 2.4GHz
Frame	75mm Tiny Whoop

The key is to keep the complete build balanced. A larger motor or battery can provide more thrust or flight time, but the additional weight can reduce the agility that makes a Tiny Whoop fun to fly.

Final Recommendation

The BETAFPV Matrix 1S 4IN1 Brushless Flight Controller is best understood as a high-capability 1S analog AIO platform rather than simply another Tiny Whoop flight controller.

Its combination of a STM32G473 168MHz MCU, 12A continuous / 18A peak ESC, onboard ELRS 2.4GHz receiver, 16MB Blackbox, 5V/3A BEC and AT7456E analog OSD gives it a strong hardware foundation for modern 1S analog builds.

For a lightweight 65mm build, pair it with 0702 or 0802 motors and 31–35mm propellers.

For a larger 75mm build, move toward 0802 or 1102 motors with 35–45mm propellers.

The most straightforward setup is:

Matrix 1S 4IN1 + 0702/0802 motors + 1S 300–450mAh battery + 31–35mm 3-blade props + analog camera/VTX + ELRS 2.4GHz

If you want an analog Tiny Whoop with stronger ESC headroom, integrated ELRS, advanced processing and flexible VTX compatibility, the Matrix 1S 4IN1 is a much more capable choice than a basic 1S 5A AIO.

Specifications

Flight Controller (FC)

MCU: STM32G473CEU6 (168MHz)

Gyro: ICM42688P

Blackbox Memory: 16MB

Sensors: Voltage & Current

BEC: 5V / 3A

UART (3IN1 Version): UART 1 (RX Only/SBUS), UART 2 (Free), UART 3 (For RX), UART 4 (Free/HD MSP)

UART (4IN1 Version): UART 1 (For VTX), UART 2 (Free), UART 3 (For RX), UART 4 (NONE)

ESC: 12A continuous

Receiver: Serial ELRS 2.4GHz (V3.4.3)

FC Firmware:

Betaflight 4.5.1 (3IN1 version), Betaflight 4.5.2 (4IN1 version)

USB Port: SH1.0-4Pin

OSD: AT7456E (4IN1 version only)

HD Digital VTX Port: SH1.0-6Pin (3IN1 version only)

Motor Plug: JST1.25-3Pin

Battery Connector: BT2.0

Mounting Size: 25.5mm x 25.5mm

Weight (3IN1 Version):

3.8±0.1g (excl. battery connector), 4.2±0.1g (incl. battery connector)

Weight (4IN1 Version):

3.6±0.1g (excl. battery connector), 4.6±0.1g (incl. battery connector)

ESC

Power Input: 1S only

Current: 12A continuous, 18A peak

ESC Firmware: A_X_5_96_v0.19.2.hex (BB51 Bluejay)

Digital Signal Protocol: DSHOT300, DSHOT600

Specification	Matrix 1S 3IN1	Matrix 1S 4IN1	F4 1S 5A AIO
MCU	STM32G473CEU6	STM32G473CEU6	STM32F411CEU6
MCU frequency	168MHz	168MHz	108MHz
Gyro, max. sampling rate	ICM42688P, 8KHz	ICM42688P, 8KHz	BMI270, 3.2KHz
ESC	12A continuous	12A continuous	1S, 5A
Blackbox memory	16M	16M	8M
OSD	-	Betaflight OSD: AT7456E	-
RX	Onboard Serial ELRS 2.4GHz		-
Motor plug	JST1.25		-
Weight	3.8g	3.6g	3.64g

Recommended Parts

● Flywoo ROBO 1202.5 11500KV FPV Motor – Lightweight Motor for 2S 2–3-Inch Builds

● BETAFPV LAVA 450mAh 75C Battery – Select the 2S XT30 Version Only

● TBS Smoke Stopper XT30/XT60 – Safer First Power-Up After Wiring the AIO

● MINIWARE TS101 Smart Soldering Iron – Micro AIO Wiring and Repair Tool

● T-HOBBY M0803II 22000KV Micro FPV Motor for 65–75mm micro whoops

Recommendations

Package Included

1 x Matrix 1S Brushless Flight Controller

1 x Type-C to SH1.0 Adapter

1 x SH1.0-4Pin Adapter Cable

1 x SH1.0-6Pin Adapter Cable

4 x M1.2*4 Self-tapping Screws

4 x M1.4*5 Self-tapping Screws

4 x Shock Absorbing Balls

betafpv matrix 1s brushless flight controller package

More expert advice

FPV AIO Flight Controller Guide for Beginners

Best Tiny Whoop &Parts Recommendation

Build a Micro FPV Drone for Under $60

Reviews

E***n
Verified

Installed on my tiny whoop, setup was easier than expected. Flies stable indoors. Mepsking support replied fast when I had a question.

Style：4 In1
E***********s
Verified

Good option for lightweight builds. Easy to install and no issues during setup. Stable hover and smooth control.

Style：3 In 1

Purchased 5 times
Additional reviews after 10 days
After several sessions, everything still works fine. Solid entry-level board.
F**********r
Verified

Good balance between simplicity and performance. Ideal for lightweight indoor builds.

Style：4 In1

Additional reviews after 12 days
After more flights, still stable and consistent.
D***********s
Verified

Using on a 1S indoor build, very clean layout and easy wiring. Good response for beginner practice.

Style：3 In 1

Purchased 2 times
Additional reviews after 11 days
Still flying daily indoors, no stability issues so far.
A********g
Verified

Good board for simple builds. Everything connected without issues and flew stable right away.

Style：4 In1

Additional reviews after 12 days
Still working fine after more packs.
K*********h
Verified

Installed the 3in1 version on a small whoop build. Soldering was easy and everything worked out of the box. Flight feels stable indoors.

Style：3 In 1

Additional reviews after 40 days
After more packs, still running smooth with no issues. Good for simple builds.
N******m
Verified

Installed on a 1S freestyle build, surprisingly stable and responsive. Good performance for the size.

Style：4 In1

Additional reviews after 12 days
Still impressed after multiple flights.
O************t
Verified

Very compact board, perfect for lightweight builds. Everything worked fine during setup.

Style：4 In1

Additional reviews after 11 days
Still performing well, no issues.

FAQ Feel free to ask us any questions

Q: Who is this BETAFPV Matrix 1S flight controller best for?: A: Ideal for Tiny Whoop and 1S micro FPV builds, perfect for beginners and indoor pilots looking for a lightweight, all-in-one solution.
Q: Is this flight controller beginner-friendly?: A: Yes. The 4IN1 AIO design simplifies wiring and installation, making it much easier for beginners compared to separate ESC setups.
Q: What’s the difference between 3IN1 and 4IN1 versions?: A: The 4IN1 version integrates all four ESC channels into one board for a cleaner, simpler build, while the 3IN1 version offers an alternative layout for specific setups.
Q: What flight performance can I expect?: A: Smooth and stable flight performance optimized for 1S whoops, with responsive control ideal for indoor flying and light freestyle.
Q: What drones is it compatible with?: A: Designed for 1S Tiny Whoop and micro FPV drones, compatible with most lightweight frames using standard mounting patterns.