SpeedyBee F405 V4 BLS 30×30 FC & ESC Stack

Please note: Speedybee has been restricted by the Chinese government and you may receive a product without branding.

Reference Video : https://www.youtube.com/watch?v=iWt3h7zsP-s

The SpeedyBee F405 V4 stack pairs an STM32F405 flight controller with a BLS 55A or BLS 60A 4-in-1 ESC (pick the ESC option) on the standard 30.5 x 30.5 mm pattern, for 5- to 7-inch freestyle, racing and long-range quads on 3-6S LiPo. Built-in Bluetooth lets you set up the flight controller from the SpeedyBee app at the field, without a laptop.

Key features

• ICM42688P gyro, onboard barometer and AT7456E chip for analogue OSD

• Six UARTs, with UART4 reserved for Bluetooth and UART5 for ESC telemetry, leaving four for receiver, GPS and VTX

• MicroSD card slot for blackbox logging

• 5 V (nine pads) and 9 V (two pads) BEC rails at 3 A each, the 9 V rail ready for a digital VTX

• ESC rated 55 A continuous and 70 A burst (10 s) per motor on the BLS 55A, 60 A continuous on the BLS 60A; BLHeli_S with DShot300/600

• 1000uF low-ESR capacitor and TVS protection diode on the ESC, with current sensing supported

Specifications

• FC MCU: STM32F405

• Gyro: ICM42688P

• Barometer: Built in

• OSD chip: AT7456E

• UARTs: 6

• Blackbox: MicroSD card slot

• BEC outputs: 5 V 3 A, 9 V 3 A

• Supported firmware: Betaflight, INAV

• Input voltage: 3-6S LiPo

• ESC current: BLS 55A: 55 A continuous x 4, 70 A burst (10 s); BLS 60A: 60 A continuous x 4

• ESC firmware: BLHeli_S J-H-40

• ESC protocol: DShot300, DShot600

• Current sensor: Supported (scale 400, offset 0)

• Mounting: 30.5 x 30.5 mm, 4 mm holes

• FC size and weight: 41.6 x 39.4 x 7.8 mm, 10.5 g

• ESC size and weight (BLS 55A): 45.6 x 44 x 8 mm, 23.5 g

Either ESC leaves headroom for a 6S 5-inch build on 2207-2306 motors or a 7-inch long-range quad. Receiver, VTX and camera are not included; plan the four free UARTs around them before wiring.