The SpeedyBee F405 V3 stack has unquestionably earned its status as 2023’s hottest flight controller, due to its outstanding options with affordability. Now, SpeedyBee introduces the V4, aspiring to surpass its predecessor by providing enhanced options and superior construct high quality, all whereas sustaining the identical value level. On this assessment, I’ll stroll you thru its distinctive options, specs, and developments remodeled the V3.
New to FPV? Take a look at my flight controller purchaser’s information.
The place to Purchase?
Get your Speedybee F405 V4 Stack from:
Within the field, you will discover the next equipment:
- A 35V 1000uF low ESR capacitor.
- XT60 pigtail (12AWG).
- Cables for DJI air models, DJI O3 and Vista.
- Bolts, rubber spacers, nylon nuts for mounting.
Specs
SpeedyBee F405 V4 Flight Controller
- MCU: STM32F405
- IMU(Gyro): ICM42688P
- USB Port Sort: Sort-C
- Barometer: Constructed-in
- Analog OSD Chip: AT7456E
- BLE Bluetooth: Supported (Used for Flight Controller configuration, MSP enabled with Baud fee 115200 on UART4)
- WIFI: Not Supported
- 6-pin HD FPV Connector: Appropriate with DJI O3/RunCam Hyperlink/Caddx Vista/DJI Air Unit V1/Walksnail Avatar
- Blackbox MicroSD Card Slot: Helps SDSC and SDHC below 32GB. FAT16 or FAT32 format required.
- Present Sensor Enter: Supported. For SpeedyBee BLS 55A ESC, scale = 400 and Offset = 0.
- Energy Enter: 3S – 6S Lipo.
- 6 UART
- 5V BEC Output 3A.
- 9V BEC Output 3A.
- 3.3V BEC Output 500mA.
- 4.5V BEC Output 1A.
- 8 ESC Sign Motor outputs: M1 – M4 on backside facet and M5-M8 on entrance facet.
- ESC Telemetry: UART R5(UART5)
- I2C: Supported
- LED Pad: Supported
- Buzzer Pad (BZ+ and BZ- pads): Supported
- BOOT Button Obtainable
- RSSI Enter: Supported
- Frsky SmartPort / F.Port: Not Supported
- Supported Flight Controller Firmware: BetaFlight (Default), INAV
- Firmware Goal Title: SPEEDYBEEF405V4
- Mounting: 30.5 x 30.5mm (4mm gap diameter, requires 3mm bolts as a result of rubber gummies)
- Dimension: 41.6(L) x 39.4(W) x 7.8(H)mm
- Weight: 10.5g
SpeedyBee BLS 55A 4-in-1 ESC
- Firmware: BLHeli_S J-H-40
- Steady Present: 55A x 4
- Burst Present: 70A x4 (10 seconds)
- TVS Protecting Diode: Sure
- Supported ESC Protocol: DShot300, DShot600
- Energy Enter: 3-6S LiPo
- Present Sensor: Supported (Scale=400, Offset=0)
- ESC Telemetry: Not Supported
- Mounting: 30.5 x 30.5mm (4mm gap diameter, requires 3mm bolts as a result of rubber gummies)
- Dimension: 45.6(L) x 44(W) x 8(H)mm
- Weight: 23.5g
Worth for Cash
The standout function of the SpeedyBee F405 stack has at all times been its unmatched worth. For $69.99, you’re getting a feature-packed flight controller and an honest 4in1 ESC that may match the efficiency of pricier options. The introduction of the V4 sees an improve within the ESC from 50A to 55A and brings a set of refinements to the FC.
Design and Construct High quality
At first look, the V4 would possibly look just like the V3, each have the enduring yellow rubber gummies for comfortable mounting and darkish PCB coloration. The board layouts are fairly comparable with giant solder pads which can be simple to work with.
One notable enhancement is the aluminum alloy heatsink within the 4-in-1 ESC, bettering not solely the cooling and sturdiness but in addition giving it a premium really feel. This ESC heatsink was beforehand unique to the costlier SpeedyBee F7 V3 stack.
Enhanced Options
The SpeedyBee F405 V4 stack introduces a number of enhancements, let’s have a look.
New Gyro
The MCU on the flight controller stays an STM32F405, identical because the V3, nonetheless, they modified the Gyro from BMI270 to ICM-42688P, and it seems Speedybee nailed the implementation. They’ve built-in a devoted energy provide for this gyro and added a 100uF tantalum capacitor, minimizes interference from reaching it from the facility supply, guarantees cleaner gyro information and simplifying PID/Filter tuning.
With the newest Betaflight firmware, each gyros provide respectable efficiency. Nevertheless, some producers desire one over the opposite as a result of price and availability. Be taught extra about gyro right here: https://oscarliang.com/flight-controller-explained/#Gyro
SD Card Reader for Blackbox
One of many major considerations with the V3 was the SD card drawback. The OSD chip and the SD card shared a pin on the processor, which led to compatibility points with newer variations of Betaflight. Fortunately, with the V4, SpeedyBee has resolved this challenge by giving all units their separate SPI. This implies you’ll be able to get pleasure from blackbox logs with none glitches, a big aid for a lot of pilots.
The older V3 used to have challenge with DShot as a result of DMA configuration which is a downer for iNav customers. This has been resolved within the V4, providing native helps for DShot on all 8 motor outputs, making it totally appropriate with iNav.
Enhanced BEC Outputs
The built-in 5V and 9V BEC have been upgraded from 2A to 3A. This improve is essential for customers of high-power HD programs, offering extra flexibility and stability in energy administration.
Enhanced 4in1 ESC
The 4-in-1 ESC has undergone vital enhancements, now boasting a score of 55A, up from the prior 50A, and a surge capability of as much as 70A. The addition of a steel heatsink and the number of MOSFETS with decrease inside resistance are wonderful enhancements, aimed toward managing warmth extra effectively throughout demanding flights. A built-in TVS diode for surge safety reduces voltage spikes. It’s constructed with thicker 3 ounces of copper layer in its PCB, 50% improve from earlier model, offering further reliability and warmth dissipation capbility.
Whereas these enhancements nearly double the load of the 4-in-1 ESC to 23.5g, from the V3’s 13.8g, the trade-off is worth it for these prioritizing reliability.
Different Notable Options
Wi-fi Configuration
No matter value, nearly each flight controller from SpeedyBee is supplied with onboard Bluetooth modules. This function permits customers to wirelessly configure their flight controller and ESC through the “SpeedyBee” app put in on their cellphones. This function makes PID tuning within the subject fast and simple, eliminating the necessity for a pc.
FPV System Compatibility
This stack is designed to be appropriate with each digital and analog OSD, guaranteeing versatility.
The V4 flight controller is plug-and-play for all accessible DJI video transmitters, together with the DJI O3, Full dimension air unit and Runcam Hyperlink (Caddx Vista), cables are offered within the equipment for all these VTX’s.
This FC can be appropriate with all different HD programs, such because the Walksnail Avatar and HDZero. Nevertheless cables for these programs will not be offered, so that you may need to do some additional wire soldering by yourself.
Battery Stage Indicators
The flight controller options onboard LED lights on the facet, serving as helpful battery degree indicators, eliminating the necessity for a separate battery checker.
Wiring Diagrams
Conclusion
The SpeedyBee F405 V4 Flight Controller Stack stands out with its spectacular specs, user-friendly options, and exceptionally interesting value level.
No matter your required configuration and purposes – be it freestyle flying or long-range explorations, quadcopter, hexacopter or octocopter, this stack has you lined.
Get your Speedybee F405 V4 Stack from:
Edit Historical past
- Sep 2023 – article created.
- Apr 2024 – Up to date.
