BETA FPV F405 4S 20A V5 BLHeli_S (ICM42688)
Based on the F405 2-4S 20A V4 brushless flight controller, the F405 4S 20A Toothpick V5 brushless flight controller applies a new ICM42688 gyro and ESC chip that comes with BLUEJAY ESC firmware so that it supports bidirectional D-shot. In addition to the ports Plug&Play for Receiver and HD Digitial VTX Like V4 board, V5 board is made with rational layout to facilitate soldering and prevent solder from jumping to another pad and shorting the components.
Characteristics
- Not only is the flight controller board made with a rational layout, but it is also designed with larger solder pads. It is very easy for pilots to solder the external electronics.
- The flight controller can handle a continuous current of 20A and reach a peak current of 25A thanks to the high-quality MOSFETs.
- Directly soldering the motor wires to the pad allows for lower resistance for higher current to the motors. In addition, the soldering pads are reinforced with thick copper and edge plating process, ensuring solid value and long-lasting use.
- Reserving the UART port layout, UART3 for RX, UART4 for HD digital VTX, UART6 for analog VTX and UART1 for spare use, it is more convenient for pilots to solder.
- Coming with 25.5*25.5mm whoop mounting pattern, this board can be added to both toothpick drone and whoop quadcopter film frame like Pavo25 and X-knight 35 .
Technical specifications
FC
- Processor: STM32F405RGT6
- Six-axis: ICM42688 (SPI connection)
- Mounting size: 25.5*25.5mm (M2 anti-vibration rubber damper available)
- FC firmware: betaflight_4.3.1_BETAFPVF405
- OSD: Built-in Betaflight OSD (OSD chip: AT7456E)
- Receiver: SBUS/CRSF/DSMX receiver
- BEC: 5V 3A
- Integrated current sensor
- Weight: 8.35 g
ESC
- ESC chip: SILABS EFM8BB21F16G-C
- Supports D-shot150, D-shot300, D-shot600, Oneshot125, Multishot, PWM
- Input voltage: 2S-4S Lipo
- Continuous current: 20A
- Peak current: 25A
- Firmware: G_H_20_48_v0.16.HEX (default BLUEJAY), BLHeli_S (optional)
Note: F405 4S 20A FC V5 is available to flash both BLHeli_S and BLUEJAY ESC firmware, and comes with the default BLUEJAY firmware. The main difference is that BLUEJAY firmware supports bidirectional D-shot, while BLHeli_S does not.
Comparison with F405 2-4S 20A V4 FC
We have updated the F4052-4S 20AV4 V5 board by adopting ICM42688 gyro instead of MPU6000 and adding some new features. The ICM42688 gyro works perfectly in most cases. Except for the gyro, the V5 board comes with a completely new ESC firmware which supports bidirectional D-shot. The way of connecting the motors has changed and it is only solderable on the V5 board. In addition, the V5 FC board comes with high-quality materials for stability and durability. The pictures below show the difference between the two flight controllers.
Note: The V4 F405 2-4S 20A Flight Controller with BMI270 Gyro will be available for purchase for a period of time.
F405 20A AIO FC V5 Toothpick Schematic
The board integrates 2 LEDs, including the Power LED (Red) and the FC LED (Blue).
| GUIDED | State | Description |
| Power LED (Red) | Solid | Ignition |
| FC LED (blue) | Solid | Armed with motor |
Wiring Diagram and Connection of External RX/HD Digital VTX
F405 4S 20A FC V5 integrates Plug & Play port for external RX and HD digital VTX, and there will be a 4-pin connector for RX and a 6-pin connector for HD digital VTX in the package. Therefore, we highly recommend pilots to use the port to save the soldering work.
FC and ESC Firmware
The default firmware includes CLI dump file. But if you flash firmware from Betaflight configurator official website, you will flash CLI dump file for F405 4S 20A FC V5. We offer the default firmware and CLI dump file for download.
F405 4S 20A FC V5 is available to flash both BLHeli_S and BLUEJAY ESC firmware, and it comes with the default BLUEJAY firmware. The main difference is that BLUEJAY firmware supports bidirectional D-shot, while BLHeli_S does not. Here are the download links for two firmwares.
Here are the links to download the ESC firmware. Configure the BLUEJAY firmware via ESC - Configurator or Bluejay Configurator software.
We offer BLHeli_S ESC firmware for pilots. Configure BLHeli_S ESC firmware via BLheliSuite, BLHeli - Configurator or ESC - Configurator software.
- Download BLHeli_S ESC firmware
- Download BLHeliSuite16714902a
- Download BLHeli - Configurator
- Download ESC - Configurator
Package Included
- 1 * F405 4S 20A Brushless Flight Controller with Toothpick V5 BLHeli_S (ICM42688)
- 1 * Coiled cable (XT30)
- 1 x 6-pin connector for digital VTX
- 1 x 4-pin connector for RX
- 4 M2x12 screws
- 8 M2 nuts
- 4 * M2 Anti-Vibration Rubber Shock Absorbers
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