Tutorials

Waterproof FPV Drone is full of sensitive electronics and components. It’s important to ensure they do not get wet or exposed to moisture, to ensure reliability and peace of mind. Given the lightweight nature of drone frames, it’s easy to accidently get your FC exposed to a tiny drop of rain or some dew when landing. By coating the main components with a waterproofing component, you can even provide some protection against an awful crash landing in the water. There are various ways to protect the electronics from getting exposed to water, but the best way is to use a brush on coating. This will allow you to still solder if you need to make changes, but provides an ingress protection against moisture. It won’t give you complete invincibility against moisture, rain or snow, but it may mean extra protection against any shorts or strange effects if a drop does find its way onto your flight controller. Which Components to Waterproof Flight Controllers, ESCs, and VTX are a no-brainer for conformal coating. Because there’s no moving parts, these parts can easily be coated without any worries. Because Silicone conformal coating is designed to work in high temperature environments, you don’t…...

Unlock the secrets of mini quad FPV Drone motors! We'll explore key factors to consider when selecting the optimal motor for your desired performance, whether you're a racing enthusiast, freestyle fanatic, or aerial photographer. How Motors Generate Torque Brushless motors generate torque through the interaction of permanent magnets on the rotor and electromagnets on the stator. Stronger magnetic fields, larger contact areas, and larger motor diameters all contribute to higher torque output. More descriptive: The magic behind brushless motor torque lies in the interplay between the rotor's permanent magnets and the stator's electromagnets. The strength of the magnetic field (flux density), the surface area where these fields interact, and the motor's diameter all play crucial roles. A stronger magnetic field, a larger contact area, and a wider diameter all translate to a greater force acting on the motor shaft, resulting in increased torque. More technical: Torque generation in brushless motors is governed by the following key factors: Magnetic flux density: A stronger magnetic field between the rotor and stator translates to a greater force. Stator volume: This directly affects the contact area between the magnetic fields, influencing the resulting force. Motor radius: The distance from the center of the shaft to the outer…...

So you're diving into the exciting world of FPV drones, but the technical jargon can be overwhelming. What's the difference between a BNF and an RTF? Should you build your own drone or buy pre-assembled? Fear not, aspiring pilot! This guide will decipher the drone lingo and help you make an informed decision. The Acronym Breakdown: RTF (Ready-to-Fly): This kit lives up to its name - everything you need to take to the skies is included. Think drone, transmitter, receiver, battery, charger, and sometimes even extras like propellers and spare parts. It's the grab-and-go option for beginners. BNF (Bind-and-Fly): Similar to RTF, but it skips the transmitter (you need to provide your own and "bind" it to the receiver). Battery and charger might also be absent depending on the kit. Think of it as RTF minus the controller. PNP (Plug-and-Play): This kit requires more assembly. You'll need to install the motor, servos, and ESC (electronic speed controller) yourself. Programming them to work together adds another layer of complexity. Battery and charger are usually not included. This option appeals to those who want some customization without starting from scratch. Choosing Your Path: The best option depends on your experience level and preferences: Beginner: RTF is your friend. Easy setup, instant gratification, and less risk of messing things up. Intermediate: BNF or PNP offer a…...

Introduction To FPV Drones Ever been mesmerized by those gravity-defying FPV drone videos online? Or maybe the electrifying races on the Drone Racing League captivated you? Perhaps a friendly pilot at the park sparked your curiosity with a glimpse through their goggles. Whatever ignited the flame, you're here seeking the knowledge and tools to take flight yourself! At Rotor Riot, we share your passion for FPV drones, and we're thrilled to be your guides on this exhilarating journey. We understand that starting out can feel overwhelming, but fear not! This article unravels the essentials, equipping you with the basic know-how to navigate the exciting world of FPV. So, buckle up and get ready to: Gear Up: We'll explore the different components that make up your FPV setup, from drones and goggles to controllers and batteries. Sharpen Your Skills: Takeoff confidence awaits as we delve into essential flight maneuvers and practice techniques. Unlock the Toolbox: Discover the resources and communities that will support your learning and fuel your FPV adventures. What is FPV ? Forget the limitations of traditional remote control! Imagine this: instead of watching your toy car putter around from afar, you're virtually in the driver's seat, hurtling down…...

Finally, the long awaited antenna upgrade for your DJI Goggles 2 has landed – TrueRC X-Air MKII with MCX connector. I bought their antennas for the DJI FPV Goggles V1/V2 and they have been working exceptionally well (much better range than the original antennas), so I have high hope for these new antennas for the G2 as well. Where to Buy? USD$59.99 for a set of two antennas, that’s all you need. Note that the two antennas are mirrored, not identical. Closer Look at the TrueRC X-Air MKII Antennas The DJI Goggles 2 have two foldable antennas on top, they use MCX connectors and are easily removable. The new TrueRC X-Air antennas are designed specifically for the DJI Goggles 2, and they also have MCX connectors. They are a direct fit for the DJI Goggles 2 in place of the stock antennas. Simply pull out the stock antennas and push the X-Air in. There are two more linearly polarized antennas inside the goggles (also omnidirectional). But to replace those you’d have to disassemble the goggles which isn’t something most people are willing to do. So we probably would have to leave those two internal antennas untouched, and just swap out…...

Welcome, adventurers of the sky! This comprehensive guide is your map to the fascinating world of FPV drone motors. We'll navigate the technical terrain, explore design intricacies, and unveil the secrets that unlock optimal performance and efficiency. Prepare to equip your next drone build with the perfect motor-powered heart! Finding Your Power Match: Before we delve into specific models, let's acknowledge the truth: there's no single "best" FPV motor. It all comes down to your unique flying style and needs. Are you a freestyle fiend craving explosive agility? Or a cinematic storyteller seeking smooth, silent sweeps? Understanding your preferences is key to navigating the motor universe. Building Blocks of Power: Now, let's dissect the anatomy of a motor and understand the forces at play: Stator: This powerhouse housing holds the electromagnetic coils that generate the magic – torque! Its size directly impacts power output, with larger stators producing more thrust but weighing more and sacrificing some responsiveness. Magnets: Permanent magnets on the motor bell create the constant magnetic field that dances with the coils, generating rotational force. Higher-quality magnets translate to smoother, more efficient operation. Bell: This protective shell shields the delicate internals and often doubles as a cooling fan, channeling airflow to…...

F4 and F7 flight controllers are two of the most popular flight controllers for drones. They both offer a variety of features and benefits, but there are some key differences between them. In this article, we will compare and contrast F4 and F7 flight controllers to help you decide which one is right for you. F4 Flight Controllers F4 flight controllers are powered by the STM32F4 microcontroller, which has a clock speed of 168 MHz. This provides good performance for most applications, including racing, freestyle, and photography. F4 flight controllers are also relatively affordable, making them a good choice for budget-minded drone pilots. F7 Flight Controllers F7 flight controllers are powered by the STM32F7 microcontroller, which has a clock speed of 216 MHz. This provides a significant performance boost over F4 flight controllers, making them ideal for demanding applications such as racing, freestyle, and autonomous flight. F7 flight controllers also typically come with more features and capabilities than F4 flight controllers. Comparison of F4 and F7 Flight Controllers Processing Power The main difference between F4 and F7 flight controllers is their processing power. F7 flight controllers have a faster clock speed, which allows them to process more complex flight algorithms…...

The F3 flight controller is a core component of FPV drones, responsible for controlling the drone's attitude, speed, and motors. It typically consists of a main controller, an IMU sensor, an MPU module, and some auxiliary circuitry. The F3 flight controller uses an ARM Cortex-M4-based main controller, which has a relatively powerful processing capability that can meet the needs of most FPV drones. Its main features include: Support for multiple firmware: F3 flight controllers are compatible with a variety of popular firm f3 mini flight controller ware, such as Betaflight and Cleanflight, providing users with rich features and playability. Affordability: Before the emergence of F4 and F7 flight controllers, F3 flight controllers were widely loved by pilots for their relatively low prices and decent performance. Wide compatibility: F3 flight controllers support a variety of motors, receivers, and sensors, meeting the configuration needs of different FPV drones. The F3 flight controller has played an important role in the field of FPV drones, bringing unforgettable flight experiences to many pilots. However, with the emergence of F4 and F7 flight controllers, the F3 flight controller has gradually withdrawn from the mainstream market. F4 and F7 flight controllers adopt more advanced hardware, such as FPU (floating-point unit),…...

The flight controller (FC) is the brain of an FPV drone. It is responsible for controlling the drone's movement, including pitch, roll, yaw, and altitude. The FC receives input from the drone's sensors, such as the accelerometer, gyroscope, and magnetometer, and uses this information to calculate the necessary motor commands to keep the drone flying smoothly and accurately. The FC also plays a role in the drone's safety features. For example, the FC can be programmed with a failsafe mode that will automatically land the drone if the pilot loses control. The FC can also be used to implement other safety features, such as altitude hold and low-battery protection. The specific functions and roles of an FPV drone FC will vary depending on the type of drone and the features that the pilot wants to enable. However, all FPV drone FCs share the following basic functions: Movement control: The FC receives input from the drone's sensors and uses this information to calculate the necessary motor commands to keep the drone flying smoothly and accurately. Safety features: The FC can be programmed with a failsafe mode that will automatically land the drone if the pilot loses control. The FC can also…...

For FPV enthusiasts who took flight three or four years ago, the struggle to access receiver binding information must still resonate. In the dynamic FPV drone industry of 2021, a groundbreaking innovation emerged—the birth of the open-source ExpressLRS radio control link RC system. In this post, we embark on a journey through several sections to unravel the intricacies of the ExpressLRS radio control link system. Whether you're new to radios and receivers or a seasoned pilot, understanding the ExpressLRS landscape is crucial for maximizing your FPV experience. Exploring ExpressLRS - More Than Just a Module: Delve into the essence of the ExpressLRS radio control link system, an open-source project based on IoT LoRa protocol for remote control models. This section sheds light on the system's foundation, its focus on range and latency, and the significance of open-source software and hardware. Discover the official ELRS project on GitHub and its pivotal role in reshaping the FPV drone industry. Decoding Long-Range RC Transmitter Modules: Unravel the world of long-range RC transmitter modules, designed predominantly for OpenTX systems like Jumper series, FrSky series, TBS Crossfire, and more. Explore the three critical parameters—signal transmission frequency, command refresh rate, and RF power—that define the capabilities…...

FPV drone frame is the skeleton of an FPV drone, which supports and connects various components. The material, size, and structure of the frame will affect the performance and flight characteristics of the FPV drone. Frame Material The common materials for FPV drone frames are carbon fiber, fiberglass, and aluminum alloy. Carbon fiber: Carbon fiber has the advantages of high strength, light weight, and corrosion resistance, making it the preferred material for FPV drone frames. Carbon fiber frames can withstand greater impact forces, lightweight can improve flight performance, and corrosion resistance can extend service life. Fiberglass: Fiberglass has the advantages of high strength and low price, making it a common material for entry-level FPV drone frames. Fiberglass frames are not as strong as carbon fiber frames, but they are more affordable. Aluminum alloy: Aluminum alloy has the advantages of high strength and corrosion resistance, but it is heavier. Aluminum alloy frames can withstand greater impact forces, corrosion resistance can extend service life, but the heavier weight will reduce flight performance. Frame Size The size of an FPV drone frame is typically expressed in wheelbase, which is the distance between the centers of the four motors. The wheelbase of an FPV drone frame is…...

FPV antennas to transmit and receive video and telemetry data. The antenna is a critical component of any FPV system, and its performance can have a significant impact on the quality of your video feed and the range of your drone. How FPV Antennas Work FPV antennas work by radiating electromagnetic waves. These waves are generated by an electric current flowing through the antenna's conductor. The shape of the antenna determines the frequency and polarization of the waves it radiates. There are two main types of FPV antennas: omnidirectional and directional. Omnidirectional antennas radiate waves equally in all directions, while directional antennas radiate waves in a more focused pattern. What Causes Interference There are several things that can cause interference with FPV antennas, including: Electromagnetic interference (EMI) from other electronic devices, such as cell phones, radios, and microwaves. Metal objects, such as buildings, trees, and even your own body, can block or reflect FPV signals. Atmospheric conditions, such as rain, snow, and fog, can also degrade FPV signals. How to Improve Range There are a few things you can do to improve the range of your FPV antenna: Use a directional antenna. Directional antennas will provide you with a longer range…...

A FPV transmission system（FPV VTX） is an essential component for any drone flight, as it is responsible for transmitting the drone's camera footage in real time to the ground receiver. The choice of FPV transmission system depends on the drone's purpose and flight environment. Racing drones and freestyle drones have different requirements for FPV transmission in the following aspects: Racing drones Racing drones fly at high speeds and perform aggressive maneuvers, so the requirements for FPV transmission are also higher. Racing drone FPV transmission systems need to have the following characteristics: Low latency: Racing drones fly at high speeds, so the latency requirements for FPV transmission are also higher. In general, the latency is required to be below 50 milliseconds. High resolution: Racing drones fly at long distances, so the resolution requirements for FPV transmission are also higher. In general, the image resolution is required to be 720p or higher. Anti-interference ability: Racing drones fly in complex environments, so they are prone to interference. Therefore, the FPV transmission system needs to have a strong anti-interference ability. Common racing drone FPV transmission systems include analog FPV transmission and digital FPV transmission. Analog FPV transmission systems have the advantages of low cost and ease of…...

Drones are becoming increasingly popular for a variety of applications, including consumer entertainment, agriculture, mapping, and even manned flight. A key component of any drone is the motor, which provides the power to propel the aircraft. Drone Motor Types There are two main types of drone motors: brushed and brushless. Brushed motors are simpler and less expensive, but they have a shorter lifespan and require more maintenance. Brushless motors are more complex and expensive, but they are also more efficient and durable. Brushed Motors Brushed motors are the simplest type of drone motor. They consist of a rotating armature with brushes that contact stationary commutator segments. The brushes provide a physical connection between the armature and the power source, which generates the torque that propels the drone. Brushed motors are relatively inexpensive and easy to maintain. However, they have a shorter lifespan than brushless motors due to wear and tear on the brushes. They also generate more heat, which can limit their performance and lifespan. Brushless Motors Brushless motors are more complex than brushed motors, but they offer a number of advantages. They are more efficient, which can extend battery life. They are also more durable, with a longer lifespan…...

The history of the FPV drone can be traced back to the early days of radio-controlled (RC) aircraft. In the 1960s, RC enthusiasts began experimenting with using video cameras to transmit a live feed from the aircraft to the ground. This allowed them to see what the aircraft was seeing, which made it easier to control and fly. The first FPV drones were relatively simple devices. They used analog video cameras and transmitters, which provided a low-quality image. However, as technology improved, FPV drones became more sophisticated. They began to use digital video cameras and transmitters, which provided a much higher-quality image. In the 1990s, FPV drones began to become more popular. This was due in part to the development of the internet, which made it easier for people to share their FPV footage. It was also due to the development of more affordable FPV equipment, which made it more accessible to a wider range of people. In the 2000s, FPV drones continued to grow in popularity. They became increasingly sophisticated and affordable, and they began to be used for a variety of purposes, including racing, photography, and filming. Today, FPV drones are a thriving hobby and industry. They are…...

Introduction Brushless motors are the heart of any FPV drone. They provide the power and performance that drones need to fly. When choosing a brushless motor for your FPV drone, there are a few factors to consider, including: Size: The size of the motor will determine the size of the propellers that you can use. Larger motors can accommodate larger propellers, which will provide more thrust. Kv rating: The Kv rating of a motor is a measure of its rotational speed per volt. A higher Kv rating means that the motor will spin faster at a given voltage. Racing drones typically use motors with high Kv ratings, while freestyle drones typically use motors with lower Kv ratings. Torque rating: The torque rating of a motor is a measure of its rotational force. A higher torque rating means that the motor can lift heavier loads. Freestyle drones typically use motors with higher torque ratings, while racing drones typically use motors with lower torque ratings. Types of Brushless Motors There are two main types of brushless motors: in-runner and out-runner. In-runner motors have the magnets inside the stator, while out-runner motors have the magnets outside the stator. In-runner motors are typically used in racing drones…...

If you’ve ever shopped for a cordless power tool, you’ve no doubt seen advertisements touting brushless DC motors. So, just what is a brushless DC motor, and is it worth the added price, and whats the pros and cons? What Are Brushless DC Motors? Brushless DC motors (BLDC) are electric motors that use permanent magnets and electronic commutation, instead of brushes and a mechanical commutator, to control the flow of current in the motor. This design provides several benefits, including improved efficiency, longer lifespan, and reduced maintenance compared to traditional brushed DC motors. BLDC motors are commonly used in high-performance applications such as electric vehicles, unmanned aerial vehicles, and industrial automation systems due to their high power density and ability to deliver consistent performance over a long lifespan. The control of BLDC motors is achieved through electronic commutation, which involves the use of sensors to monitor the rotor position and an electronic control circuit to switch the current to the appropriate windings at the right time. This allows for precise control of the motor and improved efficiency compared to brushed motors. Brushless DC Motor Advantages Increased efficiency: Brushless DC motors have higher efficiency compared to brushed DC motors, resulting in improved power…...

Embarking on the exciting journey of FPV drone flying requires careful consideration when selecting the right remote controller. In this guide, Tianqi UAV, an expert in the field, provides valuable insights for beginners on how to choose a remote controller based on individual preferences, budget, and functionality. https://youtu.be/G-yZFHs6v24 Part 1: Personal Budget Consideration For those on a budget, especially students, starting with a lower-priced remote controller is an option. However, it's essential to balance cost with features. While affordability is crucial, investing in a controller with broader compatibility within your financial means is advisable for a more satisfying drone flying experience. Part 2: Aesthetics and Brand Reputation Exploring forums and platforms like Bilibili, beginners should choose a remote controller with positive reviews and stable quality from reputable brands. Personal preferences for the controller's appearance play a role, as selecting one with an appealing design can enhance the overall experience. Part 3: Channel Consideration The number of channels in a remote controller determines the range of functions it can support. For basic drone control, 4-6 channels are necessary. However, to accommodate additional features like unlocking, data transmission, flight modes, and lights, controllers with 9 channels or more are recommended for future…...

Ready-to-Fly Marvels: The Effortless Takeoff Ready-to-Fly (RTF) drones, true to their name, emerge fully equipped straight out of the box, offering an instant gateway into the world of FPV flight. With the drone, RC transmitter, receiver, and battery included, RTF models are tailor-made for beginners, eliminating the need for additional purchases or DIY assembly. Some kits even go the extra mile by bundling FPV gear, cash kits, and superior battery chargers, ensuring a hassle-free takeoff for novices. Bind-and-Fly Adventures: Tailored to Your Transmitter In the Bind-and-Fly (BNF) realm, drones come pre-assembled, lacking only one key component – the transmitter. These models, equipped with a built-in receiver, grant you the flexibility to connect a transmitter of your choice. While you may need to acquire batteries separately, BNF drones cater to those who prefer a personalized controller, striking a balance between convenience and customization. Kits for the Enthusiasts: Crafting Your Aerial Masterpiece For the drone aficionados seeking a hands-on approach, FPV kits offer the perfect canvas for customization. Whether you're on a budget or aiming for a sophisticated build, these kits provide various options. The choice depends on your budget, DIY skills, and the ultimate drone you envision. Ready to embrace the…...

Embarking on the exhilarating world of FPV flying? Let's demystify the key components that come together to craft the ultimate FPV experience. From the drone's skeletal frame to the eyes in the sky, here's your guide to the FPV drone essentials: 1. Drone Frames: Crafting the Core Description: Picture the frame as your drone's sturdy skeleton, cradling vital components like FPV cameras, motors, and propellers. Typically carved from lightweight yet robust carbon fiber, these frames promise resilience in the face of inevitable crashes. 2. Flight Controller: The Nerve Center Description: Nestled within your drone, the flight controller acts as the brains behind the operation. It interprets signals from the radio receiver, calculates angles, and orchestrates motor movements, dictating the very essence of your flight. 3. Drone Motors: Power Unleashed Description: Powerhouse motors propel your drone into action, turning propellers to generate thrust. Brace for astonishing speeds as these motors navigate the skies with unparalleled might. 4. Propellers: The Aerial Enablers Description: Affixed to the motors, propellers bestow the gift of flight upon your FPV drone. Choose from a variety based on your flying style, with options ranging from 'slow flight' to the more daring 'aggressive' varieties.   5. Electronic Speed…...

Brushless motors have revolutionized the drone industry, providing enhanced performance and longevity compared to their brushed counterparts. Let's delve into the intricacies of brushless motors, exploring their lifespan, advantages over brushed motors, and maintenance practices. Understanding Brushless Motors: A brushless motor is a type of electric motor that operates using magnetism and electronic communication. Unlike brushed motors, brushless motors feature a more streamlined design, with the absence of brushes that typically wear out over time. Brushless vs. Brushed Motors: Is a Brushless Motor Better? Indeed, brushless motors outshine brushed motors in various aspects. Their key advantages include a higher power-to-weight ratio, improved efficiency, and longer lifespan. These factors make brushless motors the preferred choice for drone enthusiasts seeking optimal performance. Lifespan Comparison: How Long Do Brushed Motors Last? Brushed motors, while cost-effective, have a limited lifespan. With regular use, they typically endure around 1,000 to 3,000 flight hours or up to a year. However, the brushes' wear and tear, coupled with the generation of heat, necessitate frequent maintenance. Do Brushless Motors Last Longer? Brushless motors are renowned for their extended lifespan. Due to the absence of brushes and reduced friction, these motors can last ten years or more. Despite their…...

Drones have become an exhilarating hobby for many, offering the thrill of flight and the joy of capturing breathtaking aerial views. However, encountering issues with your remote control can be frustrating. If you've recently experienced a situation where your receiver seems aligned, yet your remote control fails to respond after changing the battery, worry not. This guide will walk you through potential solutions to get your drone back in the air. Understanding the Situation: Today was supposed to be another exciting day of flying your drone equipped with an ELRS (ExpressLRS) receiver. Everything seemed fine until you changed the battery, and suddenly, the remote control stopped responding when attempting to unlock the drone. Let's delve into some possible reasons and solutions for this unexpected hiccup. Check Battery Polarity: Start with the basics. Ensure that you inserted the battery into the remote control correctly, following the indicated polarity. Sometimes, a simple mistake like this can lead to unresponsiveness. Remote Control Binding: Verify if the remote control is still properly bound to the ELRS receiver. Rebinding might be necessary, especially if the battery change interrupted the connection. Consult your drone and remote control manuals for specific binding instructions. Power Cycling: Turn off…...

Flying FPV drones provides an exhilarating experience, but encountering issues like a motor stopping after hitting full throttle can be frustrating. In this comprehensive guide, we'll explore the possible reasons for this problem and offer practical solutions to get your drone back in the air. Common Causes for Motor Stoppage: Power Supply Issues: Check if the power supply is functioning correctly. Inspect for loose or faulty wiring and promptly address any issues. Ensure that connectors are secure to avoid disruptions in power flow. Motor Malfunction: Examine the motor for signs of blockage or damage. A blocked or damaged motor may lead to erratic behavior. If issues persist, consider replacing or repairing the motor to restore optimal performance. Transmission System Faults: Inspect the transmission components such as gears, chains, belts, and couplers for faults. Timely repair or replacement of these components is crucial to ensure smooth operation of the drone's transmission system. Control System Glitches: Verify the functionality of the control system. If glitches are detected, consider replacing or resetting the control system to eliminate potential issues affecting motor performance. Mechanical Failures: Check for mechanical failures in other components of the drone. Timely repairs or replacements of these components, such as…...

ESC (Electronic Speed Controller): Unraveling the Heartbeat of Your Drone What is ESC? In the intricate world of FPV drone parts, the maestro behind motor speed control is the Electronic Speed Controller, or ESC. While numerous elements influence overall performance, investing in top-notch ESCs ensures a reliable and velvety flight experience. To delve deeper into ESCs, check out this informative article: Unleashing the Power of 5-Inch Freestyle FPV Drones: A Comprehensive Guide. Choosing the Right ESC for Your 5-Inch Freestyle FPV Drone: Selecting an ESC that can handle the current draw of your chosen motor and propeller while being compatible with your battery's voltage is paramount for optimal performance. Voltage Ratings: Ensure your ESCs can handle your battery's voltage, preventing damage. Some ESCs can handle up to 6S, while others are limited to 4S or lower. Current Ratings: Expressed in amps, the ESC current rating, or "amp rating," signifies the maximum current it can handle without failure. Don't worry about it being "too large"; it can only be too low, never too high. Recommendations for Best FC & ESC: Mini SZ45A 6S 4in1 ESC: Efficient Heat Sink: Upgraded heat sink and industrial PCB for improved working life. Stable Chip Operation:…...