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Description
BetaFPV Matrix 1S Brushless Flight Controller 3in1 BMI270 - ELRS 2.4GThe Matrix 1S 3IN1 HD Brushless Flight Controller is purpose built for 1S HD whoops, featuring the iconic "cross" design. Engineered exclusively for digital FPV, it eliminates analog OSD, integrating a flight controller, ESC, and ELRS 2. 4G RX into one lightweight, streamlined unit for effortless setup and maintenance. Equipped with newly developed BEC and ESC, its finely tuned to meet the demands of 1S HD whoops, delivering superior digital image
The Matrix 1S 3IN1 HD Brushless Flight Controller is purpose-built for 1S HD whoops, featuring the iconic "cross" design. Engineered exclusively for digital FPV, it eliminates analog OSD, integrating a flight controller, ESC, and ELRS 2.4G RX into one lightweight, streamlined unit for effortless setup and maintenance. Equipped with newly developed BEC and ESC, it’s finely tuned to meet the demands of 1S HD whoops, delivering superior digital image transmission and setting a new standard in 1S HD flight controllers.
Check out all our Whoop Style AIO Flight Controllers and the rest of our BetaFPV Products!
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
- Optimized for 1S Whoops: Designed to enhance performance with the DJI O4 digital transmission system.
- Three-in-One Integration: Combines flight controller, ESC, and ELRS 2.4G RX into a compact unit, focusing exclusively on high-quality digital FPV by eliminating analog OSD.
- Stable HD 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.
- Effortless Setup: Equipped with convenient motor plugs and a SH1.0-6Pin HD digital port for a solder-free, hassle-free installation and maintenance experience.
Specifications
FC
- MCU: STM32G473CEU6 (168MHz)
- Gyro: BMI270
- Blackbox memory: 16MB
- Sensor: Voltage & Current
- BEC: 5V/3A
- UART: UART 1 (RX Only/SBUS), UART 2 (Free), UART 3 (For RX), UART 4 (Free/HD MSP)
- ESC: 12A continuous
- RX: Serial ELRS 2.4GHz (V3.4.3)
- FC firmware: Betaflight_4.5.1_BETAFPVG473
- USB port: SH1.0-4Pin
- HD Digital VTX Port: SH1.0-6Pin
- Motor plug: JST1.25-3Pin
- Battery connector: BT2.0
- Mounting size: 25.5mm x 25.5mm
- Weight: 3.2±0.1g (battery connector excluded), 4.2±0.1g (battery connector included)
- Power input: 1S Only
- Current: 12A continuous, 18A peak
- ESC firmware: A_X_5_96_v0.19.2.hex for BB51 Bluejay firmware
- Digital signal protocol: DSHOT300, DSHOT600
Diagram
Diagram of Matrix 1S 3IN1 HD Brushless Flight Controller:
New BEC for Stable HD Image Transmission
Digital image transmission requires higher current, and 1S whoops often fly at voltages as low as 3.3V, placing significant demands on the BEC. To meet these challenges, an advanced BEC has been developed, capable of delivering over 3A of current at ultra-low voltages down to 2.85V. This ensures stable digital image transmission even in critical situations. While flying to such low voltages isn't recommended, this innovation provides pilots with a greater chance of safely recovering from unexpected situations.
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.
Individual Power Supply for IMU
Unlike traditional shared power supply designs, the Matrix 1S 3IN1 HD FC features an independent 3.3V LDO power supply exclusively for the IMU. This innovation eliminates interference, creating a cleaner and more stable environment that enhances flight precision, improves sensitivity, and reduces the risk of performance issues—ensuring unmatched stability during every flight.
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.
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.
Betaflight Firmware and CLI
Betaflight official developers recommend using version 42688 of the gyroscope, and many issues with ICM42688 have been fixed in version 4.5.0. Please learn more from version 4.5.1.
- FC firmware: Betaflight_4.5.1_BETAFPVG473, download the firmware and CLI dump file
- Reference link: https://github.com/betaflight/betaflight/releases/tag/4.5.1
Bluejay ESC Firmware
With BB51 ESC solution, Matrix 1S 3IN1 HD Brushless Flight Controller is based on A_X_5_96_v0.19.2.hex for BB51 Bluejay firmware, it supports DSHOT300, DSHOT600, and even RPM filtering in Betaflight, offers 24KHz, 48KHz, and 96KHz fixed PWM frequency for options, and custom start-up melodies.
DO NOT flash the firmware with a shorter interval, otherwise, there will be a certain chance of stalling and burning the flight controller.
- ESC-Configurator: https://preview.esc-configurator.com/
- Download BLHeliSuite16714903
- Download the Bluejay ESC firmware, please choose A_X_5_96_v0.19.2.hex.
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.
Recommended Parts
- Drones: Meteor65 Pro O4, Meteor75 Pro O4
- Frames: Meteor65 Pro Frame, Meteor75 Pro Frame
- Motors: 0802SE Motor, 1102 Motor
- Propellers: GF 35mm 3-Blade, GF 45mm 3-Blade
Package
- 1 * Matrix 1S Brushless Flight Controller (3IN1 HD)
- 1 * Type-C to SH1.0 Adapter
- 1 * SH1.0-4Pin Adapter Cable
- 1 * SH1.0-6Pin Adapter Cable
- 4 * M1.2*4 Self-tapping Screws
- 4 * M1.4*5 Self-tapping Screws
- 4 * Shock Absorbing Balls
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 4
Comfortable and Easy to Wear Daily
Size: 2 Little Kid, Color: Navy/Blue
My daughter has been wearing these navy/blue shoes since the weather has been less rainy and more sunny. They are great for outdoor play, especially on days when it's warm outside. The knit mesh upper keeps her feet from overheating, and the cushioned insole feels supportive without being stiff. At size 2, the fit is accurate and the width runs a bit roomy, which gave her some growing room without feeling loose.
The slip-on design with elastic laces and pull tabs is a real plus. She can get them on and off without any help, which she loves. The shoes are light enough that she barely notices them during long active days. My one small complaint is that the sole feels more like firm foam than rubber, so they can be a little slippery on smooth indoor floors.
For the price, these deliver solid everyday value. They look good, hold up well to regular use, and my daughter reaches for them first most mornings.
Pros:
- Breathable mesh keeps feet cool
- Easy slip-on design with elastic laces and pull tabs
- Lightweight and comfortable for all-day wear
- Accurate sizing with a roomy width
- Durable for the price
Cons:
- Sole can be slippery on hard smooth surfaces
- Limited outsole grip compared to rubber-soled shoes
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Great kids' shoe — easy on, comfy all day
Size: 3 Little Kid, Color: Pink/Lavender
My kid has been wearing these for a few weeks now and I'm genuinely impressed with how well they've held up. The knit mesh upper keeps feet cool and comfortable during long days at school and outdoor play, and the cushioned EVA midsole does a great job absorbing impact.
What really won me over is the slip-on design with elasticated laces and dual pull tabs — my child can put them on and take them off completely independently, which is a huge win. The fit is snug but not tight, and they run a bit roomy in width, which is great for kids with wider feet or those who need a little growing room.
At $32, the quality feels solid for the price. Lightweight, breathable, and easy to wear — these check all the boxes for an everyday kids' shoe.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Cute, Comfortable, Light-Weight Shoes, Perfect for School
Size: 11 Little Kid, Color: Pink/Lavender, Size: 11 Little Kid, Color: Pink/Lavender
These have turned out to be great everyday shoes for my 5 year old. She normally wears a size 10, but since that size wasn’t available, I ordered the 11 expecting her to grow into them. I was pleasantly surprised that they already fit her pretty well. There’s still a little extra room in the toe area, but the shoes fit securely around her ankles so they don’t feel loose or slip off while walking or playing.
She says they’re very comfortable and loves how easy they are to slip on by herself. The lightweight design is nice for everyday wear, and they’ve held up well so far despite being worn almost daily. They've become her favorite shoes to wear! Also the pink/lavender color is really pretty in person. Overall, I’m very happy with them and would order again.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Great shoe well made
Size: 13 Little Kid, Color: Pink/Lavender, Size: 13 Little Kid, Color: Pink/Lavender
Really good shoes at a fair price. My daughter loves the pink and purple gradient colors. Really beautiful. Shoes have proven themselves very durable. She's been wearing these a few times a week for the last couple months and they still look new aside from some dirt stains. Fit perfectly. Very comfortable. This is always her first pick in the morning when she's getting dressed. Good breathability you can wear these in hot summer weather without sweaty feet. Versatile shoe looks good enough to wear out and about or exercise in.
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Reviewed in the United States on May 16, 2026
★★★★★ 3
Runs large
Size: 7 Big Kid, Color: White
Runs very large.
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Reviewed in the United States on June 5, 2026