BETAFPV
Matrix 1S 5IN1 II Brushless Flight Controller
A compact analogue 1S whoop controller integrating the flight controller, 12A ESC, Betaflight OSD, serial ELRS 2.4GHz receiver and 5.8GHz 400mW VTX. Choose the pre-wired Solder-free version or the lighter Solder-required version.
12A / 18A
Continuous and peak 1S ESC current
ELRS 2.4GHz
Onboard serial receiver, listed as V3.4.3
400mW max
Integrated 5.8GHz 48-channel analogue VTX
16MB
Onboard blackbox memory
Integrated for high-output 1S whoops
The Matrix 5IN1 II combines an STM32G473CEU6 flight controller, 12A continuous ESC, AT7456E Betaflight OSD, serial ELRS receiver and analogue VTX on one board. The ESC is rated for 18A peak current and supports DShot300 and DShot600.
A 3-point mounting system, 1.0mm PCB and 26 × 26mm mounting pattern are specified for compact whoop builds.
Choose your build version
Solder-free
Motor connectors and the power cable are pre-soldered for quicker installation. Stated board weight is 4.1 ± 0.1g, excluding the VTX antenna.
Solder-required
Designed for direct custom wiring. Four gold-plated JST1.25 connectors and a BT2.0 U cable are supplied separately. Stated board weight is 3.76g, excluding the VTX antenna.
Related 1S whoop products
These are separately sold products and catalogue links recommended for comparison or compatible builds; they are not included with the flight controller.
- BETAFPV Air65 Champion brushless whoop frame — a frame family recommended by BETAFPV for this controller.
- BETAFPV 0702 brushless motors — a recommended motor family for compatible 1S whoop builds; select the appropriate motor variant for your build.
- Browse all flight controllers — compare other FC and AIO options at Buzz FPV.
Flight controller specifications
| Specification | Details |
|---|---|
| MCU | STM32G473CEU6 |
| Gyro / IMU | ICM42688P / ICM42622 / BMI270 / LSM6DSK320X; fitted chip may vary |
| Blackbox memory | 16MB |
| Sensors | Voltage and current |
| BEC | 5V, 3A maximum |
| UARTs | UART1, UART2 for VTX, UART3 for RX, UART4 |
| OSD | Betaflight OSD, AT7456E |
| Receiver | Serial ELRS 2.4GHz, listed as V3.4.3 |
| FC firmware | Betaflight_4.5.3_BETAFPVG473_V2 |
| USB connection | SH1.0-4Pin |
| Motor connector | JST1.25 |
| Battery connector | BT2.0 |
| Mounting pattern | 26 × 26mm, 3-point mounting |
| Stated weight | Solder-free: 4.1 ± 0.1g; Solder-required: 3.76g; VTX antenna excluded |
ESC and VTX specifications
| Specification | Details |
|---|---|
| Power input | 1S only |
| ESC current | 12A continuous, 18A peak |
| ESC firmware | A_X_5_96KHz_V0.19.hex for BB51 Bluejay hardware |
| Signal protocols | DShot300, DShot600 |
| VTX output | 25 / 100 / 200 / 400mW / PIT |
| VTX frequency | 5.8GHz, 48 channels; Raceband 5658–5917MHz |
| VTX control | SmartAudio 2.0 |
| Antenna port | 50Ω |
| Operating temperature | -10°C to 80°C |
Solder-free package
- 1 × Matrix 1S 5IN1 II FC, Solder-free version
- 1 × Type-C to SH1.0 adapter
- 1 × SH1.0-4Pin adapter cable
- 1 × 5.8GHz antenna
- 4 × M1.2 × 4 self-tapping screws
- 4 × M1.4 × 5 self-tapping screws
- 4 × shock-absorbing balls
Solder-required package
- 1 × Matrix 1S 5IN1 II FC, Solder-required version
- 4 × gold-plated JST1.25 connectors
- 1 × BT2.0 U cable
- 1 × Type-C to SH1.0 adapter
- 1 × SH1.0-4Pin adapter cable
- 1 × 5.8GHz antenna
- 4 × M1.2 × 4 self-tapping screws
- 4 × M1.4 × 5 self-tapping screws
- 4 × shock-absorbing balls