{"product_id":"speedybee-f405-v4-bls-55a-4-in-1-esc-stack","title":"SpeedyBee F405 V4 + BLS 55A 4-in-1 ESC Stack","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpeedyBee F405 V4 Flight Controller + BLS 55A 4-in-1 ESC Stack (30×30)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePower up your next FPV build with the SpeedyBee F405 V4 Flight Controller paired with the BLS 55A 4-in-1 ESC. This standard 30×30 stack delivers a locked-in flight feel, high current handling, and modern connectivity in a clean, easy-to-install package. Ideal for freestyle, racing, long-range, and cinematic quads running 3–6S LiPo.\u003c\/p\u003e\n\u003cp\u003eThe ESC runs BLHeli_S firmware with smooth DSHOT support and a true 55A continuous rating per motor (70A burst). The F405 V4 FC features a fast STM32F405 MCU, responsive ICM42688P gyro, built-in OSD and barometer, plus SpeedyBee Bluetooth for wireless Betaflight tuning right from your phone. DJI digital systems are fully supported via a 6-pin plug or direct soldering.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e55A 4-in-1 ESC power\u003c\/strong\u003e — 55A continuous per motor, 70A burst (10s).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3–6S LiPo ready\u003c\/strong\u003e — wide voltage support for modern FPV builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBLHeli_S + DSHOT300\/600\u003c\/strong\u003e — smooth throttle response and reliable control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTM32F405 Flight Controller\u003c\/strong\u003e — fast processing for tight, stable flight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eICM42688P gyro\u003c\/strong\u003e — clean, responsive tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth Betaflight setup\u003c\/strong\u003e — tune wirelessly using the SpeedyBee app (UART4 MSP enabled).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in OSD + barometer\u003c\/strong\u003e — crisp HUD overlays and altitude-aware features.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDJI O3 \/ Vista \/ RunCam Link compatible\u003c\/strong\u003e — 6-pin plug or direct soldering supported.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30.5×30.5 mounting\u003c\/strong\u003e — standard stack size for most frames.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eESC Specifications (SpeedyBee BLS 55A 30×30 4-in-1)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware:\u003c\/strong\u003e BLHeli_S J-H-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current:\u003c\/strong\u003e 55A × 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Current:\u003c\/strong\u003e 70A (10 seconds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Protocol:\u003c\/strong\u003e DSHOT300 \/ DSHOT600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Input:\u003c\/strong\u003e 3–6S LiPo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Output:\u003c\/strong\u003e VBAT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Sensor:\u003c\/strong\u003e Supported (Scale 400 \/ Offset 0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTVS Protection:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Capacitor:\u003c\/strong\u003e 1000µF Low-ESR (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 30.5 × 30.5mm (4mm hole diameter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 45.6(L) × 44(W) × 8(H) mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 23.5g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFlight Controller Specifications (SpeedyBee F405 V4 30×30)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCU:\u003c\/strong\u003e STM32F405\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIMU (Gyro):\u003c\/strong\u003e ICM42688P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Port:\u003c\/strong\u003e Type-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOSD Chip:\u003c\/strong\u003e AT7456E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarometer:\u003c\/strong\u003e Built-in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth (BLE):\u003c\/strong\u003e Supported for wireless configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Input:\u003c\/strong\u003e 3–6S LiPo via BAT\/G pads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V Output:\u003c\/strong\u003e 9 groups, up to 3A total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9V Output:\u003c\/strong\u003e 2 groups, up to 3A total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.3V Output:\u003c\/strong\u003e Up to 500mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.5V Output:\u003c\/strong\u003e Up to 1A (receiver\/GPS powered via USB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUARTs:\u003c\/strong\u003e 6 total (UART4 for Bluetooth, UART5 for ESC telemetry pads)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI2C:\u003c\/strong\u003e Supported (SDA\/SCL pads)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuzzer Pads:\u003c\/strong\u003e BZ+ \/ BZ-\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware:\u003c\/strong\u003e Betaflight (default), iNav\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Name:\u003c\/strong\u003e SPEEDYBEEF405V4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 30.5 × 30.5mm (4mm hole diameter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 41.6(L) × 39.4(W) × 7.8(H) mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 10.5g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1 × SpeedyBee F405 V4 Flight Controller\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × SpeedyBee BLS 55A 4-in-1 ESC\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × 1000µF Low-ESR Capacitor\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e[Add any extra hardware\/cables your bundle includes]\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ryzer Tech","offers":[{"title":"Default Title","offer_id":49358434238561,"sku":null,"price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/7338\/4801\/files\/Screenshot2025-12-09194518.png?v=1792369168","url":"https:\/\/annaskaigrp.com\/products\/speedybee-f405-v4-bls-55a-4-in-1-esc-stack","provider":"ANNASKAI Group","version":"1.0","type":"link"}