BetaFPV F4 1S 5A AIO Brushless Flight Controller ELRS.png

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

Name: BetaFPV F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)
Brand: BetaFPV
SKU: BET132
Price: 807.83 ZAR
Availability: OutOfStock

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The classical ultralight F4 1S brushless FC comes back with SPI ExpressLRS 2.4G receiver.

Now the default firmware for F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G) is updated to Betaflight V4.3.0 RC6, which supports ELRS V2.0. Please check the below link to download the firmware.

Download the betaflight_4.3.0_BETAFPVF4SX1280_ELRS2.0.hex

SPECIFICATIONS OF FC

CPU: STM32F411CEU6 (100MHZ)
Six-Axis: ICM-20689/MPU-6000
Built-in Receiver: SPI ExpressLRS 2.4G
Receiver antenna: 2.4GHz SMD ceramic antenna
Size: 29mm x 29mm, fully mounting pattern compatible with the whoop frame in the current market
Firmware version: betaflight_4.3.0_STM32F411_norevision
OSD: Built-in BetaFlight OSD
Recommend VTX: >=200mW, like BETAFPV M03 350mW VTX or TBS Unify VTX
Power Cable: 55mm, with BT2.0 connector
Weight: 3.13g (no power cable included)

SPECIFICATIONS OF ESC

Power supply: 1S
Current: 5A continuous and peak 6A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: O_H_5_48_REV16_8.HEX
Signal Support: D-shot150, D-shot300, D-shot600, Oneshot125, Multishot, PWM

Something you should know to protect the ESC SMD ceramic antenna.

Recommend using BETAFPV Camera Canopy, which reserves sufficient space between Camera and ESC. Therefore, the SMD ceramic antenna will be protected very well.
Please make sure there is enough space between the camera and the antenna. If the camera position is too low, it will damage the antenna. So the whole FC should be reversed 180 degrees for installation and all motor positions should be reversed too.
The antenna shouldn't be exposed. It will be fragile without canopy protection.

Betaflight Firmware and CLI

Since Betaflight has not yet released the official firmware that could support the SPI ExpressLRS protocol, the current version is the Beta version. Please use the firmware and the CLI dump file below to recover the FC board if needed. Betaflight will update its official target soon. Please feel free to contact us if you have any issues with this Beta version Firmware.

It is normal that there is no option on Betaflight Configurator Receiver. As is shown below, the checkbox is blank.

Please change the “PID loop frequency” to “4KHZ” , sometimes it would make the SPI receiver not working correct while the value is “8KHZ”.

The firmware BTFL_4.3.0_BETAFPVF4SX1280_0265565fa uses external GPIO interrupt triggers to process ELRS data reception, increasing the stability of the signal link. Now it can perfectly support LiteRadio 2 SE 500Hz link and modify the accuracy of signal strength.

The new CLI file is named BTFL_cli_F4 5A ELRS_NEW. Please check.

Note: This firmware supports only ELRS 1.0.0, 1.0.1, 1.1.0, 1.2.0, 1.2.1.

Download the firmware and CLI dump file for the F4 1S 5A FC (ELRS 2.4G) board.

How to Bind with Betaflight FC with SPI ExpressLRS Receiver.

More details and discussion on Github about SPI ELRS receiver.