SpeedyBee F405 Mini BLS 35A 20x20 Stack

Rs. 9,999.00

Specifications

Weight (g)	16.8
Dimensions (mm)	FC 30 x 32 x 7.8, ESC 35 x 35 x 5.5, assembled stack 32 x 35 x 14.2
Cell count	3S, 4S, 5S, 6S
Voltage range	3-6S LiPo
Mount pattern	20 x 20mm, 3.5mm holes, takes M2 or M3 screws with silicone grommets
Stack size	20 x 20mm
Output power	ESC 35A continuous x 4, 45A burst (5s); BEC 5V/2A total, 9V/3A and 4.5V/1A
Compatibility notes	Flight controller (SpeedyBee F405 Mini): STM32F405, ICM42688P gyro, built-in barometer, AT7456E OSD, 8MB blackbox, USB-C. Betaflight target SPEEDYBEEF405MINI; INAV also supported. 9.6g. Bluetooth built in for wireless Betaflight tuning through the SpeedyBee app. 4-level battery voltage indicator. 4 UARTs, I2C, WS2812 LED strip pad, buzzer pads, camera control pad. RSSI input and Smart Port / F.Port are not supported. DJI air unit connects by direct soldering. ESC (SpeedyBee 35A BLHeli_S Mini V2): BLHeli_S J-H-40 firmware, 35A continuous per channel with a 45A burst, DShot300/600, TVS transient suppression, current sensor (scale 250, offset -500). 7.2g. Note the ESC does NOT support ESC telemetry, even though the flight controller has a telemetry pad on UART5. Known issue: with a DJI air unit connected, some ELRS receivers are not detected - disconnecting the SBUS wire from the air unit harness resolves it. Suited to 2-4 inch and light 5 inch builds. Weight is the sum of the two boards; SpeedyBee separately quotes 13.5g for the assembled stack, so treat the figure as approximate.
In the box	1x SpeedyBee F405 Mini flight controller 1x SpeedyBee 35A BLHeli_S Mini V2 4in1 ESC 1x capacitor 1x SH1.0 8-pin FC-to-ESC cable (25mm) 1x DJI 6-pin cable 5x M2 anti-vibration silicone grommet 5x M3 anti-vibration silicone grommet 1x manual and app download card

The SpeedyBee F405 Mini BLS 35A Stack is a 20 x 20mm flight controller and 4-in-1 ESC combo for 2–4" builds and lightweight 5" quads. Built-in Bluetooth lets you configure Betaflight from the SpeedyBee app, and it supports all DJI air units plus a built-in barometer.

Features

Bluetooth configuration via the SpeedyBee app
Built-in barometer and 8MB blackbox
Supports all DJI air units
35A BLHeli_S ESC with TVS protection and current sensor

Flight controller (F405 V3 Mini)

MCU	STM32F405
Gyro	ICM42688P
OSD	AT7456E
Blackbox	8MB
UARTs	4
BEC	5V 2A and 9V 3A
Input	3–6S LiPo
Mounting	20 x 20mm (M2/M3)
Size	30 x 32 x 7.8mm
Weight	9.6g
Firmware	Betaflight (default) / INAV; target SPEEDYBEEF405MINI

ESC (35A BLHeli_S Mini V2)

Continuous / burst	35A x4 / 45A (5s)
Input	3–6S LiPo
Firmware	BLHeli_S J-H-40
Protocols	DShot300/600
Mounting	20 x 20mm
Size	35 x 35 x 5.5mm
Weight	7.2g

Compatibility

Frame: 20 x 20mm stack - 2.5-4" and light 5" frames. Not 30.5 x 30.5mm, and not frames that only take 25.5mm AIOs (e.g. SpeedyBee Master3X).
Battery: 3-6S (no 2S).
No ESC telemetry - the BLHeli_S ESC does not return RPM/temperature telemetry; RSSI input and Smart Port / F.Port are not supported.
Known issue: with a DJI air unit, some ELRS receivers are not detected - disconnect the SBUS wire from the air-unit harness to fix it.