SpeedyBee F405 V4 Stack (F405 V4 FC + 55A BLHeli_S ESC) – Professional 30×30 Wireless Combo at RoboShop BD
The SpeedyBee F405 V4 Stack is the ultimate “value king” for FPV pilots, available at RoboShop BD. This professional-grade 30.5×30.5mm stack combines a feature-rich F405 V4 Flight Controller with a powerful 55A 4-in-1 ESC. With its integrated Bluetooth module, you can configure your drone wirelessly via the SpeedyBee app—no computer or cables required at the field. Built to handle 3S-6S LiPo power, it is the perfect core for 5-inch freestyle quads and long-range cruisers.
9,850.00৳ 11,000.00৳
Wireless Configuration via Bluetooth
Tired of carrying a laptop to the flying field? The SpeedyBee F405 V4 features a built-in Bluetooth chip that allows for Full Wireless Configuration. Simply connect your smartphone to the SpeedyBee app to adjust PIDs, rates, and even flash firmware or change motor directions. This makes mid-session tuning faster and more convenient than ever before.
Upgraded 55A 4-in-1 ESC
The V4 stack includes a significantly improved ESC, now rated at 55A continuous current with a 70A burst. It features an aluminum alloy heatsink to manage heat during intense flight, a thicker 3oz copper PCB for better conductivity, and a built-in TVS protective diode to absorb voltage spikes. Combined with 21 onboard TDK filtering capacitors and an external 1000uF low ESR capacitor, this ESC provides ultra-smooth power delivery to your motors.
Key Features
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Wireless Tuning: Configure Betaflight and ESC settings via the SpeedyBee smartphone app.
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DJI Plug-and-Play: Dedicated 6-pin connector for DJI O3, Air Unit V1, and Vista—no soldering required.
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Blackbox Logging: Onboard MicroSD card slot supports up to 4GB for flight data analysis.
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Robust BEC: Dual 5V 3A and 9V 3A outputs to power high-draw HD VTXs and peripherals.
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ICM42688P Gyro: High-precision vibration-resistant gyro for locked-in flight performance.
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Battery Indicator: 4-level LED battery life indicator built directly onto the side of the FC.
Technical Specifications
Flight Controller (F405 V4)
| Specification | Details |
| MCU | STM32F405 |
| Gyro / IMU | ICM42688P |
| Barometer | Built-in |
| OSD Chip | AT7456E |
| UARTs | 6 Sets |
| Input Voltage | 3S – 6S LiPo |
| Mounting | 30.5 x 30.5mm (M4 holes) |
ESC (55A 4-in-1)
| Specification | Details |
| Firmware | BLHeli_S (J-H-40) |
| Continuous Current | 55A * 4 |
| Burst Current | 70A (10 Seconds) |
| Protocol | DSHOT300 / 600 |
| Current Sensor | Supported (Scale=400, Offset=0) |
| Dimensions | 45.6(L) x 44(W) x 8(H)mm |
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