BETAFPV F4 2-3S 20A AIO FC V1 for Pavo Pico Brushless Whoop quadricottero HX115 SE Toothpick droni

F4 2-3S 20A AIO FC V1 is specifically designed for HD VTX, utilizing 2-3S batteries for enhancing the flight experience. It features a dual BEC solution that delivers stable power outputs of  9V@2A for DJI O3 and  5V@3A for external devices. With a 20A ESC, it enables agile flight and increases dynamic. And connector for DJI O3 HD VTX and USB port for easy installation and maintenance. Ideal for HD VTX Whoop enthusiasts, offering a heightened level of professionalism and convenience with this FC option.

Bullet Point

• Designed for HD VTX, it features a dual 9V@2A for DJI O3 and 5V@3A for external device BEC solution to prevent schermo blackout on the DJI O3 due to low voltage during throttle increase.

• It includes a new DJI O3 6-pin PMU for easy installation without soldering, reducing assembly complexity. Newbie friendly.

• The power range of 2-3S provides increased thrust and improved control with a 20A ESC featuring a single NMOS for continuous current capability.

• The upgraded onboard ricevitore allows selective power cutoff for saving power and offers additional UART TX3 and RX3 ports for connecting the external device.

• Redesigned solder pad layout ensures larger, more secure pads for easy and reliable soldering, while the relocated USB port at the rear facilitates computer tuning.

• It features an STM32F405RGT6 chip, Integrate Serial ELRS 2.4G ricevitore, 16M black box, barometer, current misuratore, reserve 3 complete serial ports and a standard SBUS, support GPS, HD VTX, external ricevitore, and other equipment.

Specification

• Weight: 5.58g (without motore connectors and power cavo),5.92g (with motore connectors)

• Mounting Hole Size: 26mm x 26mm

• CPU*: STM32F405RGT6 (168MHz)

• Six-Axis: ICM42688P (SPI connection)

• RX: Serial ELRS 2.4G ricevitore

• RX firmware version: BETAFPV AIO 2400 RX ELRS V2.5.2

• Antenna: Enameled wire

• Blackbox Memory: 16MB

• sensore: Barometer(BMP280),  Voltage&Current

• 5V BEC*: 5V 3A@8V supply

• 9V BEC*: 9V 2A@8V supply

• USB Port: SH1.0 4-Pin

• Built-in ESC with 20A continuous and peak 25A current

• ESC input voltage: 2-3S

• FC firmfware version: Betaflight_4.4.1_BETAFPVF405

• ESC firmware: C_X_70_48_V0.19.2.hex for BB51 Bluejay hardware

• Signal support: D-shot300, D-shot600

•  

*The output current of BEC will decrease as the temperatura increases

Diagram

Comparison

We upgraded the FC fromF4 1S 12A AIO FC V3toF4 2-3S 20A AIO FC V1. The upgraded FC features an ESC with a pulse overcurrent capacity of 25A,ensuring stable operation of the flight controllore even in the event of motore stalling. The addition of a 9V 2A BEC alimentatore ensures the stable operation of the DJI O3 HD VTX when the batteria voltage is low. It also includes a DJI O3 6-pin PMU allowing for connection to HD VTX without soldering. It integrates features such as a 16MB black box, with support for GPS, external receivers, and other devices. The redesigned solder pad layout and USB connector make installation and maintenance easier and more convenient.

Note:If you use the F4 2-3S 20A AIO FC V1, the serial port of the SBUS ricevitore is UART5 while F4 1S 12A AIO Brushless FC V3 is UART6.

F4 2-3S 20A AIO FC V1 also has extended the USB port to the end for easier parameter adjustment and wiring. And a new DJI O3 6-pin PMU has been added for convenient installation and maintenance.

FAQ

Power cutoff: Removing the chip bead disconnects the alimentatore, and to reuse the onboard ELRS ricevitore, soldering the solder pads together restores power.

UART3 release: Removing two resistors on the solder pads releases UART3. The left side is TX3, and the right side is RX3. To reconnect, solder the solder pads together when reusing the onboard ELRS ricevitore.

Voltage interruttore: The HD VTX connector defaults to 9V. The chip bead is soldered between the 9V pad and the middle pad. To use WalkSnail Avatar HD mini 1s and Lite, please ensure the alimentatore voltage is 5V. Remove the chip bead first from the 9V pad and solder it between the middle pad and the 5V pad. Alternatively, you can use solder instead the chip bead to interruttore between the 5V and 9V pads.

motore choice: Avoid selecting motori with excessively high KV ratings, as motori above 20,000KV are prone to burn.

Betaflight Firmware and CLI 

FC firmware: Betaflight_4.4.1_BETAFVF405 

Download the firmware and CLI dump file

Reference link:

https://github.com/betaflight/betaflight/releases/tag/4.4.1

ESC Firmware

With BB51 ESC solution, F4 2-3S 20A AIO FC V1 is based on BLHeliSuite16714903 with Bluejay ESC firmware, it supports bidirectional D-shot and RPM filtering in Betaflight, offers 24KHz, 48KHz, and 96KHz fixed PWM frequency for options, and custom start-up melodies. F4 2-3S 20A AIO FC V1 default factory setting is 48KHz and it doesn't recommend upgrading the 96KHz, or it might cause an error in the motore idle setting, not spinning when disarmed.

Serial ELRS 2.4G RX

Serial ELRS 2.4G RX uses the Crossfire serial protocollo (CRSF protocollo) to communicate between the ricevitore and the flight controllore scheda. So the Serial ELRS 2.4G RX is available to support upgrading to ELRS V3 with no need to flash Betaflight flight controllore firmware. 

• Enter binding status by power on/off three times.

• Plugin and unplug the flight controllore three times;

• Make sure the RX LED is doing a quick double blink, which indicates the ricevitore is in bind mode;

• Make sure the RF TX modulo or Radio trasmettitore enters binding status, which sends out a binding pulse;

• If the ricevitore 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.

• Plug in your FC to your computer, but do NOT connect to betaflight configurator.

• Choose target "BETAFPV 2.4GHz AIO RX". 

• Flash using the BetaflightPassthrough option in ExpressLRS Configurator.

How to flash firmware via Wi-Fi here.

Connecting External Devices

Please note that the scheda reserves two serial ports and a standard SBUS port, which is available for the external CRSF protocollo ricevitore or GPS modulo, and SBUS protocollo ricevitore. You can refer to the below picture.

Recommend Parts

• droni:  Pavo Pico Brushless Whoop quadricottero, HX115 SE Toothpick Drone

Package

• 1 * F4 2-3S 20A AIO FC V1

• 4 * M2*10 Machine Screw 

• 4 * M2*10 Nylon Screw 

• 4 * M2 Nuts 

• 4 * Shock Absorbing Ball 

• 4 * JST1.25mm Angle Socket 

• 4 * JST1.25mm Straight Socket 

• 1 * SH1.0 4Pin Adapter cavo

• 1 * Type-C to SH1.0 Adapter 

• 1 * XT30 Power Cord

• 1 * Filter Capacitor 

• 1 * 30mm Double-head VTX connector wire 

• 1 * 60mm Single-head VTX connector wire