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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
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Description
SpeedyBee F405 Mini Stack - F405 V3 FC + 35A 3-6S BLHeli_S 4-in-1 ESC - 20x20The SpeedyBee F405 Mini BLS 35A 2020 Stack features an upgraded F405 flight controller chip and a built in Bluetooth chip for seamless wireless Betaflight tuning. This board comes with a 4 level battery voltage display and a built in barometer and supports connectivity to all DJI Air Units. It offers 4 available UART ports, and a dual BEC setup with 5V 2A and 9V 3A outputs. The 35A 4 in 1 BLHeli_S Mini ESC provides four synchronized outputs with a
The SpeedyBee F405 Mini BLS 35A 20×20 Stack features an upgraded F405 flight controller chip and a built-in Bluetooth chip for seamless wireless Betaflight tuning. This board comes with a 4-level battery voltage display and a built-in barometer and supports connectivity to all DJI Air Units. It offers 4 available UART ports, and a dual BEC setup with 5V 2A and 9V 3A outputs.
The 35A 4-in-1 BLHeli_S Mini ESC provides four synchronized outputs with a continuous current of 35A, delivering strong power to drive all 2-4 inch and lightweight 5-inch quadcopters via a 4-6S battery. Equipped with a TVS transient suppression diode onboard, it better absorbs surge voltage, providing enhanced protection for the ESC.
Features
- TVS transient suppression diode for surge voltage absorption and enhanced protection
- Compatibility with 2-4 inch and lightweight 5-inch quadcopters
- Four synchronized outputs with a continuous current of 35A
- Dual BEC setup: 5V 2A output and 9V 3A output
- Built-in Bluetooth chip for wireless Betaflight tuning
- Supports connectivity to all DJI Air Units
- Upgraded F405 flight controller chip
- 4-level battery voltage display
- 35A continuous current output
- Supports 4-6S battery
- 4 available UART ports
- Built-in barometer
Specifications
SPEEDYBEE F405 V3 20X20 FLIGHT CONTROLLER
- DJI Air Unit Compatibility: Compatible with all DJI Air Units (DJI O3/RunCam Link/Caddx Vista/DJI Air Unit V1). Use specific solder pads for pin-to-pin connection. Note: UART1 is used for OSD and SUBS(R2) is used for SBUS receiver signal input
- BLE Bluetooth: Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration. Note: MSP switch on UART 4 must be turned on and set to a baud rate of 115200 for Bluetooth functionality
- Wireless FC Firmware Flashing: NOT Supported. Connect to Betaflight configurator on PC for firmware update
- Wireless Blackbox Download & Analysis: NOT Supported. Connect to Betaflight configurator on PC for blackbox analysis
- Current Sensor Input: Supported. For SpeedyBee BLS 35A V2 ESC, set Scale=250 and Offset=-500
- Power Input: 3-6S LiPo. Powered through 8pin harness G, V wires or G, V pads from bottom side
- BOOT Button: Supported. Forces FC to enter DFU mode for firmware flashing
- 3.3V Output: Supported. Designed for 3.3V input receivers. Up to 500mA current load
- 4.5V Output: Supported. Designed for radio receiver and GPS module. Up to 1A current load
- Mounting: 20 x 20mm, 3.5mm hole diameter. Compatible with M2 and M3 screws/Silicone grommets
- I2C: Supported. DA & CL pads on the front side for magnetometer, sonar, etc
- Traditional Betaflight LED Pad: Supported. Used for WS2812 LEDs
- Supported Flight Controller Firmware: BetaFlight (Default), INAV
- BetaFlight Camera Control Pad: Yes. CC pad on the front side
- ESC Signal: M1 - M4 wires or soldering pads on the bottom side
- UART: 6 sets. UART1-6 with dedicated purposes
- Firmware Target Name: SPEEDYBEEF405MINI
- Buzzer: BZ+ and BZ- pad used for 5V Buzzer
- 5V Output: 4 groups. The total current load is 2A
- 9V Output: 1 group. The total current load is 3A
- DJI Air Unit Connection Way: Direct soldering
- Dimension: 30(L) x 32(W) x 7.8(H)mm
- Smart Port / F.Port: Not Supported
- ESC Telemetry: UART R5 (UART5)
- Blackbox: 8MB Onboard Flash
- RSSI Input: Not Supported
- OSD Chip: AT7456E chip
- IMU(Gyro): ICM42688P
- USB Port Type: Type-C.
- WIFI: Not supported
- Barometer: Built-in
- MCU: STM32F405
- Weight: 9.6g
SPEEDYBEE 35A BLHELI_s MINI V2 4-IN-1 ESC
- Mounting: 20 x 20mm ∅3.5mm hole size, compatible with M2 and M3 screws/Silicone grommets
- Power Output: VBAT (Battery voltage, used to power the flight controller)
- Current Sensor: Support (Scale=250 Offset=-500)
- ESC Telemetry: Not supported
- Burst Current: 45A (5 seconds)
- Dimension: 35 * 35 * 5.5mm
- ESC Protocol: DSHOT300/600
- Continuous Current: 35A * 4
- Firmware: BLHeli_S J-H-40
- Power Input: 3-6S LiPo
- Weight: 7.2g
Includes
- 1x SpeedyBee F405 V3 20x20 Flight Controller
- 1x SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC
- 5x M2 Silicone O-Ring
- 5x M5 Silicone O-Ring
- 5x M2 Anti Vibration Silicone Grommets
- 5x M3 Anti Vibration Silicone Grommets
- 1x 8-Pin JST cable 30mm
- 1x 35V 470uf Capacitor
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Perfect for addingprivacy
Color: Beige, Size: 4-panel, Color: Beige, Size: 4-panel
Excellent room divider! Easy to set up, good quality, and perfect for adding privacy near the front door. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Stands well on high-pile carpet
Color: Beige, Size: 5-panel
Great product! Stands up sturdy on my high-pile carpet. Not too heavy, not too light. It comes pre-assembled in a MASSIVE box, so just be aware. The condition was great, minus one spot that looks like the fabric weave was stained. Not noticeable. Kindof a pain to adjust, but that's not necessarily the fault of the product. Just a finnicky thing to get "just right."
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Sturdy, Easy to Use, and Great for Privacy
Color: Black, Size: 88" W, Color: Black, Size: 88" W
This room divider is exactly what I needed! The metal frame feels very sturdy and stable, and the wider bases keep it from tipping over easily. The fabric provides great privacy and blocks light much better than expected. I also love how lightweight and foldable it is, making it easy to move around or store when not in use. Assembly was simple and only took a short time with the included instructions. Overall, it looks great, feels high quality, and works perfectly for creating a private space at home. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 3
Not bad
Color: Grey, Size: 88" W
Claims to be non see through but you can, easy to assemble but instructions aren't good. Decent money value, quality is okay. Good fit, not very sturdy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 1
They bend easily and hard to keep up
Color: Black, Size: 88" W
To flimsy, they are see through, not at all what is pictured
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
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