Matrix 1S Brushless Flight Controller (3IN1/4IN1)
Matrix 1S Brushless Flight Controller (3IN1/4IN1)
Matrix 1S 3IN1 HD FC weight
Matrix 1S Brushless Flight Controller (3IN1/4IN1)
Matrix 1S Brushless Flight Controller (3IN1/4IN1)
Matrix 1S 3IN1 HD FC weight

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

Regular price $39.99 USD Save $-39.99 USD
-995 in stock

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.

Note: Stay tuned for our upcoming 4IN1 version with the analog OSD integrated.

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: ICM42688P
    • 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)

    ESC

    • 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.

    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.

    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

      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
      package for Matrix 1s brushless flight controller

      Shipping Method & Delivery Times

      We offer the following shipping options:

      Expedited Shipping: Estimated delivery in 3-7 working days via DHL/FedEx.

      Standard Shipping: Estimated delivery in 12-30 working days via registered mail.

      Please expect a processing time of 1-2 business days (Mon–Fri, excluding holidays).

      IMPORTANT:

      • Delivery estimates are not guaranteed and may vary due to shipping address, customs clearance and carrier delays.
      • Battery orders: Expect more business days for safety inspections.
      • Out-of-stock items: Ships in 1–2 weeks (we’ll notify you via email).
      • Address errors: Double-check your shipping details during checkout. Incorrect/missing addresses cause delays or failed deliveries.

      Shipping Costs

      1. Standard Shipping

      We offer free standard shipping on all orders of $99.99 or more. For orders between $20 – $99.98, a flat rate of $5 applies. For orders under $20, a flat rate of $10 applies.

      IMPORTANT: Starting April 24, all U.S. orders will include a flat $10 fee to offset recent increases in shipping costs and tariffs. To learn more details, check U.S. Tariff Policy Change: What You Need to Know.

      2. Expedited Shipping

      We offer expedited shipping service worldwide including islands area. Shipping fees are calculated automatically at checkout based on your location and order weight.

      IMPORTANT: Customers are fully responsible for customs duties, taxes, customs clearance and other costs incurred when choosing expedited shipping. If a shippemnt is returned due to unpaid import fees, return shipping costs will be charged to the customer, and no refunds will be issued for the original order.

      3. Additional Shipping Fee

      There are certain situations where you may be required to pay extra shipping fees.

      • Products with large dimensions or weight: Products with large dimensions or weight are excluded from free shipping rule due to carrier dimensional weight calculations. (Including: FPV Goggles, BETAFPV Gates & Flags, RTF FPV Whoop Kits, LiteRadio Series radio transmitter, Storage Cases)
      • Remote countries/regions: Orders shipped to remote countries or regions (e.g., islands, rural areas) may require adjusted shipping fees based on carrier surcharges.
      • Expedited Shipping with Batteries: Expedited Shipping orders containing more than 2 batteries that exceed the limits outlined in our Battery Shipping rule below will incur extra fees to cover separate battery shipments.
      • Reshipping Costs: Packages returned due to incorrect addresses or customs clearance failures (e.g., unpaid duties) will be subject to reshipping fees. Customers must cover these costs before redelivery.

      Shipping Rules

      1. Battery Shipping

      Some countries or remote regions are forbidden to ship stand-alone batteries due to restricted customs and safety regulations. If your location restricts battery shipments, we will notify you promptly and adjust your order accordingly. Review the 2. Countries/Regions Where Battery or Drone Shipping Is Restricted below for details.

      Expedited Shipping Battery Shipping: Stand-alone batteries are prohibited for expedited shipping. However, drones packed with less than or equal to two batteries or devices with bulit-in batteries (e.g., transmitters, goggles) may still qualify for expedited delivery.

      Battery Type

      International Expedited Shipping

      No batteries

      Accepted

      Contained in

      Accepted

      Packed with (no more than 2 batteries)

      Accepted

      Stand-alone

      Prohibited

      Battery Type Definitions

      • Stand-alone: Package ONLY contains batteries or cells; NO equipment.
      • Packed with: Package contains equipment + cells or batteries that are NOT installed in the equipment. For example, BNF drones with batteries or RTF drone kits.
      • Contained in: Package has lithium batteries contained in equipment (properly installed in the equipment they are intended to operate). For example, radio transmitter or goggles.

      2. Countries/Regions Where Battery or Drone Shipping Is Restricted

      Due to customs regulations and carrier restrictions, we cannot ship drones or batteries to the following destinations:

      • Drones Restricted: Brazil, Saudi Arabia
      • Drones & Batteries Restricted: Armed Forces Europe (APO/FPO/DPO), P.O. Box, Dominican Republic, Maldives
      • Batteries Restricted: South Africa, Cyprus, Cote d'Ivoire, Brunei, India, Argentina, Turkey, Serbia, Iceland, Guadeloupe, Georgia, Belarus, Bosnia and Herzegovina, Montenegro, Saint Barthelemy, Oman, Armenia, Qatar, Costa Rica, Kuwait, Jamaica, Malta, Jersey, New Caledonia, Kyrgyzstan, Burundi, French Guiana, Mauritius, Greenland

      Note: The list is subject to change without prior notice due to evolving customs regulations, carrier restrictions, and local legislation.

      3. Address Requirements

      To ensure successful delivery, please carefully follow these requirements based on your location. Incorrect or incomplete information may cause delays or failed deliveries.

      Japan & Germany: Street name and number, apartment/unit number (if applicable) are required. Omissions are not allowed.

      Australia & United States: Provide the postal code that matches the city, and ensure that the city name is written correctly without any omissions or abbreviations.

      Hong Kong, Macao, Taiwan, and Mainland China: Address must be written in Chinese characters.

      Tax ID Required for Customs Clearance for orders to the following countries:

      • South Korea: Personal Clearance Code
      • Brazil: Cadastro de Pessoas Físicas (CPF)
      • Chile: Tax Identification Number (RUT)
      • India: Aadhaar Card/Pan Card/KYC number
      • Mexico: TAX ID (RFC) / Personal ID (CURP)
      • Indonesia: Nomor Pokok Wajib Pajak (NPWP)

      Delayed Or Rejected Orders Liability

      BETAFPV is not liable for delayed or rejected packages resulting from circumstances beyond our reasonable control. This includes, but is not limited to:

      Delays of shipments to remote regions: Shipping time might be delayed for 3-7 days to remote regions or over 7 days to island destinations like Hawaii, Puerto Rico, Canary Islands, etc.

      Customer-caused delay or delivery failure: These actions include, but are not limited to address changes after shipment, incorrect/incomplete addresses, invalid contact information, and refusal to accept delivery, etc.

      Force majeure: It means unforeseen, inevitable, or insurmountable objective situation and other objective conditions that cause delayed shipping, including, but not limited to: national or regional air or ground transportation system controls or interruptions (e.g., weather reasons), communication system interference or malfunction, government actions, postal administration policy changes, wars, earthquakes, typhoons, floods, fires, heavy rain, heavy fog, and other similar events.

      Packages cannot be delivered to your address during weekends, national holidays, and festivals.

      The address is a school, hotel, unit, or residential community where the courier has no access. Please provide a permanent street address.

      *Please confirm your address before payment. If corrections are needed, please contact BETAFPV customer support in a timely manner.

      Tracking Your Package

      Once your order ships, you’ll receive a notification email with the tracking number. You can also check your order status by logging into your BETAFPV account dashboard, where shipped orders display tracking links based on your selected shipping method. If your order status shows “Shipped” but no tracking details are visible, this means your package is prepared and awaiting carrier pickup. A status of “Processing” indicates we’ve received your order and are preparing it for shipment.

      Please note that you may receive more than one Shipment Notification E-mail if item(s) from your order are shipping separately.

      You can also enter the tracking number to check your package shipment status below. If you encounter issues tracking your order, contact BETAFPV customer support for assistance.

      FAQ

      1. How long until my order ships?

      All orders typically will be processed within 1-2 working days after your payment. Delays may occur during high order volumes or backorder situations.

      If there will be a significant delay in the shipment of your order, we will contact you via email. Please make sure your email address is active and remember to check the email for updates.

      2. After I place an order, how do I change my order before shipment?

      Country selections cannot be modified after checkout. If you need to change these details, please cancel the order and purchase again. Please contact BETAFPV customer support within 24 hours after placing the order if you need to change order product information or address.

      3. How do I cancel after I have placed the order, but it has not shipped?

      You can contact BETAFPV customer support for canceling if your order has not been shipped. If your order has been shipped less than 24 hours, please contact the customer service and we will try to hold your order from the shipping company.

      It is impossible to cancel if your order has been shipped over 24 hours.

      4. Under what circumstances will BETAFPV cancel an order unilaterally?

      We reserve the right to cancel orders for:

      • Unavailable product(s): BETAFPV tries to contact customers and does not get a reply in 7 days.
      • High-risk Order(s) identified by banks/Paypal: To ensure your card safety, we will cancel your order.
      • Unshippable destinations: If we are not able to ship to your location, your order will be canceled.

      *BETAFPV reserves the right to update this policy. Last revised May 2025.

      Customer Reviews

      Based on 7 reviews
      86%
      (6)
      14%
      (1)
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      A
      Adam kearns
      My go to for O4 builds

      This board is perfect for DJI O4 75 mm whoop builds! Plug and play eze just need a quick tune!

      J
      Jérôme Alloyeau

      Good product

      M
      M.G.
      Great board

      For 1S O4 lite build its propably the best buy currently:)

      E
      Eric S
      Excellent vtx power supply, amp rating, no buzzer pads

      In my 1s toothpick this board is pure gold. My Walksnail vtx shows 5v no matter how hard I push it, even below 3v and 25A on the flight pack. So I am confident the vtx will stay online and I know the O4 is even less forgiving. I wish it had a buzzer pad. I also wish the motor connectors were not soldered on at the factory, they are hard to remove.

      T
      T.M.
      Best 1S FC for HD

      If you are running the new DJI O4 lite and want to build a 1S whoop/quad. This is your best/only option. It’s even a great option for 1S Walksnail builds due to the BEC that was meant for these systems.