SpeedyBee F405 Mini BLS 35A 20×20 Stack

SpeedyBee F405 Mini BLS 35A Stack: The Comprehensive GuideIntroduction to the SpeedyBee F405 Mini StackThe SpeedyBee F405 Mini BLS 35A Stack is a highly efficient and compact solution for FPV drone enthusiasts seeking reliable performance in a 20x20mm stack. Featuring a robust F405 flight controller paired with a 35A 4-in-1 ESC, this stack is tailored for 3-6S builds, delivering exceptional power and precision. Designed to streamline your drone’s setup, the SpeedyBee F405 Mini Stack is perfect for both freestyle and racing pilots.Key Features and SpecificationsFlight Controller (FC): SpeedyBee F405 MiniProcessor: STM32F405 for high-speed data processing and advanced flight performance.Gyroscope: Integrated MPU6000 for enhanced flight stability and precise control.Firmware Compatibility: Betaflight firmware, enabling extensive configurability and user-friendly setup.BEC Output: 5V/2A for powering accessories like cameras, receivers, and VTX.Blackbox: 16MB onboard flash for detailed flight logging and analysis.OSD: Integrated On-Screen Display for live telemetry feedback.ESC: 35A 4-in-1 BLHeli_SCurrent Rating: 35A continuous, 40A burst for reliable performance in high-throttle scenarios.Firmware: Pre-installed BLHeli_S for seamless motor control and performance optimization.Input Voltage: Supports 3-6S LiPo batteries for versatile power configurations.DShot Protocol: DShot600 support for precise motor control.Heat Dissipation: Built with high-quality MOSFETs and a robust heat sink design.Compact DesignMounting Dimensions: 20x20mm standard mounting pattern, ideal for lightweight and space-constrained builds.Weight: Lightweight construction minimizes added weight for enhanced flight dynamics.$59.99 for a Bluetooth 35A Stack? That’s 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 ESC: This 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 4-6S battery. Equipped with a TVS transient suppression diode onboard, it better absorbs surge voltage, providing enhanced protection for the ESC.Tune Flight controller and ESC wirelessly!Power the quad, connect the SpeedyBee app via Bluetooth, configure the UART Ports,PID,OSD and every other settings on this flight controller. Also, every parameter of the BLHeli_S ESC in this stack can be set via the app.With this Bluetooth stack, even micro drones become easy to tune—no need to worry about the hassle of inserting USB cables into the flight controller. Simply tune your drone wirelessly through the App, and say goodbye to wires and worries!Powerful Real 35A 4-in-1 ESC!6-layer 2oz PCB plus optimized circuit design equals stable and strong current output. The four-channel continuous 140A output can reach 30 seconds*.The use of Japanese TDK filtering SMT capacitors and the onboard TVS protective diode, further enhances your flight experience, providing a seamless and reliable performance. The stack underwent rigorous pressure testing with various 5-inch freestyle and racing drones, confirming its powerful capability to effortlessly drive any 2-4 inch and lightweight 5-inch drones.Clean Gyroscope Power Supply, Smoother FlightEquipped with the renowned brand MaxLinear’s LDO power supply chip, the gyroscope receives independent power, boosting surge protection capacity by 320%. Additionally, built with a 100uF ultra-large filtering tantalum capacitor, guarding the gyroscope’s data from interference caused by the power source. Each posture and movement during flight receives precise responsiveness, allowing you to fully experience the pure beauty of flying!Forgot your LiPo checker? Just look at the FC!On the side of the flight controller, you will find a 4-level battery capacity indicator. As soon as you connect the battery, you can instantly see the battery level, saving you the hassle of needing to put on goggles to check the battery status.Change motor directions wirelessly!Are you still using a computer to change motor directions? With this stack, when you finish your build, connect to the SpeedyBee app, change the motor directions just in a few simple steps*. Then take off.* To use this feature, go to the App > Motors > Motor Direction Settings.Support DJI Digital Video TransmitterThe flight controller has two independent 9V 3A BEC and 5V 2A BEC, supports various analog image transmissions above 5V, and also supports DJI O3 Air Unit/Link / Vista/Air Unit V1M2 or M3? Why not both?Have you ever experienced that the stack holes of your frame did not fit the stack you got? This stack is perfectly compatible with M2/M3 screws. What’s more, two sets of M2 and M3 screws silicone grommets are included in the package!TVS Protective Diode 470uF Low-ESR Capacitor = Upgraded ESC ProtectionThe ESC is built with TVS protective diode to absorb the voltage spike when you plug in the battery, or during crashes that block your props. We also provide a Rubycon 470uF Low-ESR capacitor, ensuring clean data from the gyro to the FC.And packaged with more useful features● Sufficient 4 x UARTs for your receiver VTX camera GPS.● Two independent 5V 2A BEC and 9V 3A BEC.● Power your GPS with a USB cable – no battery needed. No extra heat, no worries● 17mm cutouts for FPV camera in your tight build● Onboard barometer for real-time altitude sensing● Onboard 8MB Blackbox storageSpecs OverviewProduct NameSpeedyBee F405 Mini BLS 35A 20×20 StackFlight ControllerSpeedyBee F405 MiniESCSpeedyBee BLS 35A Mini V2 4-in-1 ESCBluetoothSupported. 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.WiFiNOT SupportedWireless FC Firmware FlashingNOT SupportedWireless Blackbox Dwonload & AnalysisNOT SupportedPower Input3-6S LiPoMounting20 x 20mm 3.5mm hole size，Compatible with M2 and M3 screws/Silicone grommetsDimension32mm(L) x 35mm(W) x 14.2mm(H)Weight13.5gSpecificationsProductNameSpeedyBee F405 Mini Flight ControllerMCUSTM32F405IMU(Gyro)ICM42688PUSB Port TypeType-CBarometerBuilt-inOSD ChipAT7456E chipBLE BluetoothSupported. 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 FlashingNOT Supported. Please connect to the Betaflight configurator on the PC to do FC firmeare updateWireless Blackbox Dwonload & AnalysisNOT Supported. Please connect to the Betaflight configurator on the PC to do blackbox analysis.WIFINot supportedDJI Air Unit Connection WayDirect solderingDJI Air Unit CompatibilityCompatible 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.Blackbox8MB Onboard FlashBetaFlight Camera Control PadYes(CC pad on the front side)Current Sensor InputSupported. For SpeedyBee BLS 35A V2 ESC, please set Scale=250 and Offset=-500.Power Input3-6S 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 Output4 groups of 5V output, three 5V pads and 1 BZ pad( used for Buzzer) on front side. The total current load is 2A.9V Output1 group of 9V output, one 9V pad on front side. The total current load is 3A.3.3V OutputSupported. 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 OutputSupported. Designed for radio receiver and GPS module even when the FC is powered through the USB port. Up to 1A current load.ESC SignalM1 – M4 wires or soldering pads on bottom side.UART6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5(Dedicated for ESC telemetry),UART6ESC TelemetryUART R5(UART5)I2CSupported. DA & CL pads on front side. Used for magnetometer, sonar, etcTraditional Betaflight LED PadSupported. 5V, G and LED pads on bottom of the front side. Used for WS2812 LEDs controlled by the Betaflight firmware.BuzzerBZ and BZ- pad used for 5V BuzzerBOOT ButtonSupported. 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 InputNot SupportedSmart Port / F.PortNot SupportedSupported Flight Controller FirmwareBetaFlight(Default), INAVFirmware Target NameSPEEDYBEEF405MINIMounting20 x 20mm 3.5mm hole diameter ，Compatible with M2 and M3 screws/Silicone grommets.Dimension30(L) x 32(W) x 7.8(H)mmWeight9.6gProductNameSpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESCFirmwareBLHeli_S J-H-40Continuous Current35A * 4Burst Current45A(5seconds)ESC ProtocolDSHOT300/600Power Input3-6S LiPoPower OutputVBAT(Battery voltage, used to power the flight controller)Current SensorSupport (Scale=250 Offset=-500)ESC TelemetryNot supportedMounting20 x 20mm ∅3.5mm hole size，compatible with M2 and M3 screws/Silicone grommets.Dimension35 * 35 * 5.5mmWeight7.2gManualEnglish 中文    Alright, let’s dive into the world of PID loop frequencies! So, imagine you’re playing a really immersive video game.  You press a button on your controller, and your character responds instantly on the screen, right? Now imagine if there was a delay between your button press and the character’s action. That would be a bummer, wouldn’t it? Well, in the world of drones, we have a similar situation. The drone’s flight controller is constantly making adjustments to keep the drone flying smoothly. This happens through something called the PID loop, which stands for the Proportional, Integral, and Derivative loop. The PID loop is like the brain of the drone. It takes information from the sensors, decides how the drone should respond, and then sends commands to the motors. This entire process happens repeatedly and at a very fast pace. The frequency at which this process repeats is known as the PID loop frequency. It’s like the frame rate in a video game – the higher the frame rate, the smoother the game looks. Now, when we talk about 2K, 4K, and 8K PID loop frequencies, we’re talking about how many times per second this process happens. So, 2K means the PID loop runs 2000 times per second, 4K means it runs 4000 times per second, and 8K means it runs 8000 times per second. It’s like choosing between running, cycling, or driving – each one is faster than the last! So, you might be thinking, “Well, obviously 8K is the best because it’s the fastest, right?” Not necessarily! Just like driving a car super fast isn’t always the best option (you could get a ticket or crash ), running your PID loop at super high frequencies isn’t always the best choice.For one, it can make your flight controller work harder, which can lead to overheating. It can also make your ESC protocol more prone to errors, kind of like how a fast internet connection can sometimes be unstable. So, it’s all about finding the right balance. Just like how you wouldn’t use a race car to go to the grocery store, you wouldn’t necessarily use an 8K PID loop frequency for a casual drone flight. It all depends on what you’re using your drone for. I hope this helps to understand what PID loop frequencies are all about! If you have any more questions, feel free to ask. Happy droning! FPV Drone PID Explained – Mastering Flight Performance through PID Tuninghttps://oscarliang.com/pid/Read More About Lipo Batteries by clicking the link below: https://oscarliang.com/fpv-drone-guide/Checkout our Antennas Collection by clicking the link below:https://thefpvproject.com/product-category/fpv_components/antenna/