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- USA
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
For Your Every Summer RSVP, with Code: SUMMER15
Description
SpeedyBee F405 Mini BLS 35A 20x20 Stack$59. 99 for a Bluetooth 35A Stack? Thats ridiculous! Utilizing an upgraded F405 flight controller chip with better performance than the F411, it features a built in Bluetooth chip for seamless wireless Betaflight tuning. The board comes with a 4 level battery voltage display, 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. 35A 4 in 1 BLHeliS Mini
Specs Overview
| Product Name | SpeedyBee F405 Mini BLS 35A 20x20 Stack |
| Flight Controller | SpeedyBee F405 Mini |
| ESC | SpeedyBee BLS 35A Mini V2 4-in-1 ESC |
| Bluetooth | Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration. Please make sure the MSP switch on UART 4 is turned on and set to a baud rate of 115200, otherwise Bluetooth functionality will not be available. |
| WiFi | NOT Supported |
| Wireless FC Firmware Flashing | NOT Supported |
| Wireless Blackbox Dwonload & Analysis | NOT Supported |
| Power Input | 3-6S LiPo |
| Mounting | 20 x 20mm 3.5mm hole size,Compatible with M2 and M3 screws/Silicone grommets |
| Dimension | 32mm(L) x 35mm(W) x 14.2mm(H) |
| Weight | 13.5g |
Specifications
| ProductName | SpeedyBee F405 Mini Flight Controller |
| MCU | STM32F405 |
| IMU(Gyro) | ICM42688P |
| USB Port Type | Type-C |
| Barometer | Built-in |
| OSD Chip | AT7456E chip |
| BLE Bluetooth | Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration. Please make sure the MSP switch on UART 4 is turned on and set to a baud rate of 115200, otherwise Bluetooth functionality will not be available. |
| Wireless FC Firmware Flashing | NOT Supported. Please connect to the Betaflight configurator on the PC to do FC firmeare update |
| Wireless Blackbox Dwonload & Analysis | NOT Supported. Please connect to the Betaflight configurator on the PC to do blackbox analysis. |
| WIFI | Not supported |
| DJI Air Unit Connection Way | Direct soldering |
| DJI Air Unit Compatibility | Compatible with all DJI Air Units: DJI O3/RunCam Link/Caddx Vista/DJI Air Unit V1. Please use the solder pads < 9V, G, T1, R1, G, SUBS(R2) > on the front right corner of the flight controller to make a pin-to-pin connection with the solder pads on the DJI Air Unit. UART1(T1, R1) is used for OSD and SUBS(R2) is used for DJI Air Unit’s internal SBUS receiver signal input. |
| Blackbox | 8MB Onboard Flash |
| BetaFlight Camera Control Pad | Yes(CC pad on the front side) |
| Current Sensor Input | Supported. For SpeedyBee BLS 35A V2 ESC, please set Scale=250 and Offset=-500. |
| Power Input | 3-6S LiPo. The flight controller is powered through the G, V wires of the 8pin harness or G, V pads from the bottom side of the flight controller. |
| 5V Output | 4 groups of 5V output, three +5V pads and 1 BZ+ pad( used for Buzzer) on front side. The total current load is 2A. |
| 9V Output | 1 group of 9V output, one +9V pad on front side. The total current load is 3A. |
| 3.3V Output | Supported. Soldering pad named ‘3V3’ on the front top of the flight controller. Designed for 3.3V input receivers. Up to 500mA current load. |
| 4.5V Output | Supported. Designed for radio receiver and GPS module even when the FC is powered through the USB port. Up to 1A current load. |
| ESC Signal | M1 - M4 wires or soldering pads on bottom side. |
| UART | 6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5(Dedicated for ESC telemetry),UART6 |
| ESC Telemetry | UART R5(UART5) |
| I2C | Supported. DA & CL pads on front side. Used for magnetometer, sonar, etc |
| Traditional Betaflight LED Pad | Supported. 5V, G and LED pads on bottom of the front side. Used for WS2812 LEDs controlled by the Betaflight firmware. |
| Buzzer | BZ+ and BZ- pad used for 5V Buzzer |
| BOOT Button | Supported. Press and hold BOOT button and power the FC on at the same time will force the FC to enter DFU mode, this is for firmware flashing when the FC gets bricked. |
| RSSI Input | Not Supported |
| Smart Port / F.Port | Not Supported |
| Supported Flight Controller Firmware | BetaFlight(Default), INAV |
| Firmware Target Name | SPEEDYBEEF405MINI |
| Mounting | 20 x 20mm 3.5mm hole diameter ,Compatible with M2 and M3 screws/Silicone grommets. |
| Dimension | 30(L) x 32(W) x 7.8(H)mm |
| Weight | 9.6g |
| ProductName | SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC |
| Firmware | BLHeli_S J-H-40 |
| Continuous Current | 35A * 4 |
| Burst Current | 45A(5seconds) |
| ESC Protocol | DSHOT300/600 |
| Power Input | 3-6S LiPo |
| Power Output | VBAT(Battery voltage, used to power the flight controller) |
| Current Sensor | Support (Scale=250 Offset=-500) |
| ESC Telemetry | Not supported |
| Mounting | 20 x 20mm ∅3.5mm hole size,compatible with M2 and M3 screws/Silicone grommets. |
| Dimension | 35 * 35 * 5.5mm |
| Weight | 7.2g |
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
4.8 ★★★★★
Based on 760 reviews
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Product Reviews
★★★★★ 5
Still working great!!
I really didn't have a good feeling about ordering a starter online, but I was in a situation where I didn't have the time to get to the auto shop before my day off and Amazon could get me this part just in time. So I reluctantly gave it a shot.
When it showed up it had a couple of small black pieces of plastic loose in the box similar to the pieces shown in another review on here. It didn't look like they from anything functional. I really needed to get my wife's car running so decided to install it anyways.
The install was easy and it was a perfect fit. The only draw back would be that the signal wire didn't click in place like the signal wire on the original starter. But it was a snug fit.
It has been installed and working great for a month now. Very happy with my purchase.
It also had a message from the seller when I opened the box giving the starter a 2 year warranty. Very cool.
If the starters fails in the next two years I'll get on here and edit my review. So if your reading this then it is still working great.
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Reviewed in the United States on December 10, 2025
★★★★★ 5
Great quality at a great price too!
Husband got this for his ‘05 Camry and says it looks and fits just like the original. He was happy that it simply slid in with no adjustments needed. It’s been a couple months now and no problems at all. Very satisfied with this item.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Great value!
Worked great.
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Reviewed in the United States on May 20, 2026
★★★★★ 4
Electrically good. Fitment not so good.
This starter worked fine when installed. The only reason I didn't give it a 5 star rating was fitment. the hole in the bell housing is slightly larger than the starter. The old starter, OEM, was a right fit. This puts all of the strain and torque of starting the engine on the two bolts that hold the starter in. I expect this to fail at some, hopefully, distant point in the car's future. In order to retorque the starter bolts, the battery and airbox have to be removed.
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Reviewed in the United States on October 6, 2025
★★★★★ 5
Fit my 2006 3.3 Toyota Sienna..
Shipped quickly and fit as advertised. Works like it should and the price was good!
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Reviewed in the United States on April 15, 2026