BETAFPV Serial ELRS F4 2-3S 20A AIO Flight Controller for HD Digital Quadcopter

The F4 2-3S 20A AIO Brushless Flight Controller V1 is designed for HD VTX, featuring a dual 9V@2A BEC for the DJI O3 and a 5V@3A BEC for external devices. This solution prevents screen blackout on the DJI O3 due to low voltage during throttle increase. The flight controller includes a new DJI O3 6-pin PMU for easy installation without soldering, reducing assembly complexity. The redesigned solder pad layout ensures larger, more secure pads for reliable soldering, while the relocated USB port at the rear facilitates computer tuning, making it newbie-friendly.

Powered by the 2-3S range, the 20A ESC provides increased thrust and improved control, with a single NMOS for continuous current capability. The upgraded onboard receiver allows selective power cutoff for saving power and offers additional UART TX3 and RX3 ports for connecting external devices.

The F4 2-3S 20A AIO V1 Brushless Flight Controller features an STM32F405RGT6 chip, integrated Serial ELRS 2.4G receiver, 16M blackbox, barometer, current meter, and three complete serial ports. It supports SBUS, GPS, HD VTX, external receivers, and other equipment.

Regarding the technical specifications, the flight controller weighs 5.58g without motor connectors and power cable, or 5.92g with them. The mounting hole size is 26mm x 26mm. The CPU is an STM32F405RGT6 running at 168MHz, and the six-axis sensor is an ICM42688P connected via SPI.

The RX is a Serial ELRS 2.4G receiver with firmware version BETAFPV AIO 2400 RX ELRS V2.5.2. The antenna is made of enameled wire, and the blackbox memory is 16MB. Additional sensors include a barometer (BMP280) and voltage and current sensors.

The ESC has a continuous current of 20A and a peak of 25A, with an input voltage range of 2-3S. The FC firmware version is Betaflight_4.4.1_BETAFPVF405, and the ESC firmware is C_X_70_48_V0.19.2.hex for the BB51 Bluejay hardware. The signal support includes D-shot300 and D-shot600.

The package includes the F4 2-3S 20A AIO FC V1, 4 M210 machine screws, 4 M210 nylon screws, 4 M2 nuts, 4 shock-absorbing balls, 4 JST1.25mm angle sockets, 4 JST1.25mm straight sockets, 1 SH1.0 4-pin adapter cable, 1 Type-C to SH1.0 adapter, 1 XT30 power cord, 1 filter capacitor, 1 30mm double-head VTX connector wire, and 1 60mm single-head VTX connector wire.

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