{"id":6063,"date":"2026-04-05T09:49:22","date_gmt":"2026-04-05T07:49:22","guid":{"rendered":"https:\/\/race-drones.com\/?post_type=product&p=6063"},"modified":"2026-04-11T12:53:53","modified_gmt":"2026-04-11T10:53:53","slug":"betafpv-air-flight-controller-matrix-3in1","status":"publish","type":"product","link":"https:\/\/race-drones.com\/he\/product\/betafpv-air-flight-controller-matrix-3in1\/","title":{"rendered":"BetaFPV Air Flight Controller Matrix 3IN1"},"content":{"rendered":"

The Matrix 1S Brushless Flight Controller redefines 1S whoop performance with two purpose-driven architectures: the 3IN1 for DJI O4 digital dominance<\/strong> (integrating FC, ESC, and ELRS 2.4G RX while omitting analog OSD), and the 4IN1 for analog mastery (adding built-in OSD + solder pads for external VTXs). Both feature the iconic cross-design architecture, newly developed BEC, 18A peak ESCs, and the STM32G473 MCU for 55% faster processing\u2014delivering effortless setup, pro-tier control, and uncompromised flight dynamics that rewrite 1S standards.<\/p>\n

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Attention<\/strong>
\nFlight 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.
\nBullet Points<\/strong>
\nDual DNA: 3IN1 (FC, ESC, and ELRS 2.4G RX) for DJI O4 digital dominance (omits analog OSD), 4IN1 for analog mastery with OSD.
\nSTM32G473 MCU: 55% faster processing than F411 for responsive tuning.
\nStable Video Transmission: Features a newly developed BEC to ensure consistent power delivery for seamless HD performance.
\nEnhanced Overcurrent Capacity: Supports 12A continuous current and 18A peak ESC, providing robust performance for demanding flights.
\nReliable Precision: Includes an independent 3.3V LDO design to deliver stable, interference-free power directly to the IMU for accurate control.
\nWhoop-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.<\/p>\n

Specifications
\nFC<\/strong>
\nMCU: STM32G473CEU6 (168MHz)
\nGyro: ICM42688P
\nBlackbox Memory: 16MB
\nSensor: Voltage & current
\nBEC: 5V\/3A
\nUART (3IN1 Version): UART 1 (RX Only\/SBUS), UART 2 (Free), UART 3 (For RX), UART 4 (Free\/HD MSP)
\nUART (4IN1 Version): UART 1 (For VTX), UART 2 (Free), UART 3 (For RX), UART 4 (NONE)
\nESC: 12A continuous
\nRX: Serial ELRS 2.4GHz (V3.4.3)
\nFC Firmware: Betaflight_4.5.1_BETAFPVG473 (3IN1 version), Betaflight_4.5.2_BETAFPVG473_V2 (4IN1 version)
\nUSB Port: SH1.0-4Pin
\nOSD: AT7456E (4IN1 version only)
\nHD Digital VTX Port: SH1.0-6Pin (3IN1 version only)
\nMotor Plug: JST1.25-3Pin
\nBattery Connector: BT2.0
\nMounting Size: 25.5mm x 25.5mm
\nWeight (3IN1 Version): 3.8\u00b10.1g (battery connector excluded), 4.2\u00b10.1g (battery connector included)
\nWeight (4IN1 Version): 3.6\u00b10.1g (battery connector excluded), 4.6\u00b10.1g (battery connector included)
\nESC<\/strong>
\nPower Input: 1S only
\nCurrent: 12A continuous, 18A peak
\nESC Firmware: A_X_5_96_v0.19.2.hex for BB51 Bluejay firmware
\nDigital Signal Protocol: DSHOT300, DSHOT600
\nUltra-Resilient BEC<\/strong><\/p>\n

1S whoops often fly at voltages as low as 3.3V and digital image transmission requires higher current, 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 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.<\/p>\n

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Betaflight Firmware and CLI<\/strong><\/p>\n

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 and 4.5.2.<\/p>\n

Matrix 1S Brushless Flight Controller (3IN1):<\/p>\n