BETAFPV Matrix G4 3in1 is an AIO board designed for 1S TinyWhoops and other small FPV drones with digital video transmission. The board integrates a flight controller, ESCs, and an RC receiver. It is built on a 1mm thick PCB for good durability. For easy motor connection, the board is equipped with plug-in connectors. It also features a powerful 5V step-up regulator designed to reliably power a DJI O4 unit even on a 1S drone. A 6-pin SH1.0 connector allows easy connection of the digital video system. The board uses an external USB-C port connected via SH1.0.
The flight controller is equipped with an STM32G473 processor and an ICM42688P gyro. It also includes 16MB of blackbox memory. The integrated 4-in-1 ESCs support up to 12A and run Bluejay firmware.
RC control is provided by an integrated 2.4GHz ELRS receiver connected via UART. The UART pads remain available, making it possible to disable the onboard receiver and connect an external one if needed. The internal ELRS receiver uses a direct-soldered wire antenna.