BetaFPV F4 2-4S AIO Brushless Flight Controller 12A (BLHeli_S)

Since the second batch, we upgrade the board to V1.2, which add the support of Frsky R9M receiver and DSMX receiver.

Note: The firmware version of the newest batch is 4.0.3, which is not compatible with default PID, so please flash the firmware to 3.5.3. Click here to check the manual of how to flash the firmware.

Light weight and easy install, this F4 2-4S AIO FC (BLHeli_S) is suitable for brushless whoop like 2S Pro 2 Series/ X Series. It has weight of 5.6g integrated with a Betaflight MATEKF411 processor FC, Betaflight OSD and 2-4S 12A ESC which can support 4S battery for fast flying experience. 

Recommended Battery and Motor combo: 

Comparison of Toothpick 12A AIO FC and F4 12A AIO FC

Are you curious about how it performs with a toothpick build? Let us enjoy the testing by Totofpv.

Amazing, See how the FC handle 3S on full throttle!!

COMPARISON OF THREE VERSIONS OF FC

SPECIFICATIONS OF FC

• CPU: STM32F411CEU6 (100MHZ )
• Six-Axis: MPU6000 (SPI connection)
• Size: 26mm x 26mm, whoop mounting pattern
• Firmware version: Betaflight MATEKF411 (MK41)
• OSD: Built-in BetaFlight OSD (STM32 controls OSD chip over SPI in DMA mode)
• Receiver: Support Frsky XM/XM+ Receiver/ Futaba Receiver/ Flysky Receiver/ TBS Crossfire Receiver. Add Frsky R9M Receiver and BETAFPV Micro DSMX Receiver (Don't support DSMX RX with 3.3V solder pad ) since V1.2.
• Support programmable LED like WS2812 etc
• Built-in current sensor
• Weight: 6.2g

DIAGRAM FOR F4 2-4S AIO FC 

SPECIFICATIONS OF ESC

• Support BLheli/BLHELI_S suite Pass-through ready
• Support PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600
• Input voltage: 2S-4S Lipo
• Continue current: 12A
• Peak current: 13A
• Firmware: BLHELI_S
• Processor: SILABS EFM8BB21F16G
• Motor Connectors: 1.25mm header pins connector
• Factory firmware: G-H-30-16.7

Could the ESC on this AIO board support really 4S battery?

Yes. But please pay more attention to the motors. Here are two situations that the motor will burn itself and then the ESC frequently. 

Situation 1: The motor's KV value is too high and could not stand the 4S power. For example, the BETAFPV 1105 6000KV motors could not stand the 4S power in aggressive flying. So we are working on a lower KV 1105 motor that could use with 4S battery. It will be released soon.

Situation 2: A poor quality motor will result in the fire accident in 4S power.

For the moment, no 0x0x/1102/1103 motors could stand 4S power for the moment in the market. Please make sure your motors could support the 4S battery before any try.

HOW TO CONNECT THE EXTERNAL RX TO THE FC

Here is the connection diagram with Frsky XM+ receiver.

Here is the connection diagram with FS-RX2A receiver.

Here is the connection diagram with Futabe-X-BOSS AC900 receiver.

Here is the connection diagram with TBS Crossfire receiver.

Here is the connection diagram with DSMX FullSpeed receiver.

Status LED

There are 3 LEDs on the bottom of the board to indicate the status, including Receiver LED ( Green), FC Status LED ( Blue ) and FC Power LED ( Red ). 

Built-in Current Meter

This is our first whoop FC board that have current sensor built-in. So no need to use the virtual current meter and you could get a more accurate current value. In order to use this current sensor hardware, some configurations in Betaflight GUI are needed. In the "Power & Battery" tab:

Then when flying, you could find the real current value from the OSD information. Of course, the current sensor is configured well in the factory and you do not need to change it as usual.

Know more about current sensor and calibration.

PACKAGE

1 * F4 2-4S brushless flight controller with XT30 Plug
4 * M1.2x4mm screws
4 * M1.4x5mm screws
4 * Anti-vibration rubber dampers