BETAFPV F4 1S 5A AIO Brushless Flight Controller (Serial ELRS 2.4G)

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Additional Information
  • Weight : 0.10
  • Model : 01040013_1
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The F4 1S 5A AIO Brushless Flight Controller is back in stock with new and upgraded features. The new board integrates Serial ExpressLRS 2.4G receiver. Compared with the original built-in SPI ELRS 2.4G receiver, it could flash the newest ELRS official firmware like V3.0 easily. Also, we updated the FC with high-quality BMI270 gyro, BB51 ESC hardware with Bluejay ESC firmware, and 8MB Betaflight Blackbox flash.

Two version choices for the FC board. Weighing only 2.96 grams, the Light version comes with NO motor connectors soldered. Therefore, pilots could directly solder the motor cables to the FC board, getting an ultimate lightweight drone for fast speed FPV racing.

Bullet Point
Come with a Serial ExpressLRS 2.4G receiver, which can be updated via Wi-Fi or Betaflight serial passthrough. It is convenient for pilots to flash any version of ELRS RX firmware and especially can flash ExpressLRS V3.0 without updating flight controller firmware.
The SPI Frsky version board reserves an SBUS port and a UART port, which is available for the SBUS protocol receiver or other external receivers.
Built-in an 8MB flash memory chip dedicated to Blackbox logging. It’s an extremely powerful tool for tuning and troubleshooting an FPV drone.
Particular design with a weight of 3.64g (Classical) and 2.96g (Light), reasonable layout, and easy to build. With a 26*26mm mounting hole size, it is fully compatible with the whoop frame in the current market.
The Light version requires soldering motor wires to the pad directly, which allows lower resistance for more current on motors. It also comes with motor pin connectors for convenience to use.

Specification of FC
CPU: STM32F411CEU6 (100MHZ)
Six-Axis: BMI270
Built-in Receiver: Serial ExpressLRS 2.4G
Receiver antenna: Line antenna
FC Size: 30*30mm
Mounting Hole Size: 26*26mm
Firmware version: betaflight_4.3.0_BETAFPVF411 (ELRS)
OSD: Built-in BetaFlight OSD
Blackbox: 8MB
Recommend VTX: >=200mW, like BETAFPV M03 350mW VTX or TBS Unify VTX
Power Cable: 55mm, with BT2.0 connector
Weight: 2.96g (without motor connectors) / 3.64g (with motor connectors), excluding power cable

Specification of ESC
Power supply: 1S
Current: 5A continuous and peak 6A (3 seconds)
ESC firmware: A_X_5_.HEX for Bluejay BB51 hardware
Signal Support: D-shot150, D-shot300, D-shot600, Oneshot125, Multishot, PWM

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.

Turn off telemetry in the Betaflight configurator.

Power cycle, while holding the Boot button to put the ELRS receiver into the bootloader.

Open the Betaflight configurator, exit DFU mode, and make sure the Betaflight is disconnected from the flight controller.

Choose target "BETAFPV AIO 2400 RX". Flash using the Passthrough option in ExpressLRS Configurator.

How to flash firmware via Wi-Fi here.

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