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FYSETC Prusa MK3S+ LCD Screen - 2004 Display - 3D Printer Co...
Original price was: $21.99.$19.99Current price is: $19.99.
Holy Stone HS720 GPS Drone with Camera for Adults 4K UHD, FA…
Original price was: $249.99.$199.99Current price is: $199.99.
Price: $249.99 - $199.99
(as of Apr 12, 2024 01:48:52 UTC – Details)
From the brand
Dare to fly, soar to live.
HS720 Gimbal Drone
HS720 4K HD Drone
Drone Accessory
The sky is full of dreams. Let our drones be your dream catcher.
Everyone should have easy and inexpensive access to the flying dream. That’s why we dedicate ourselves to creating high-tech, affordable, and fun-to-fly drones.
Since 2014, Holy Stone has become the best choice of entry-level drones for beginners and drone lovers. More than 5 million customers have enjoyed flying and captured great life moments with their Holy Stone drones.
[FAA-Compliant Remote ID] The Holy Stone HS720 4K drone has completed the FAA requirement. No need extra remote ID module. Enjoy worry-free flights, ensuring safety and compliance.
4K UHD Camera with Image Stabilization: The optimized full HD Camera built with Shock Absorption holder ensures shooting 3840 x 2160 high-resolution images and videos without camera vibration. 5GHz FPV transmission and 90°adjustable lens enable you to see the world from different angles.
GPS Assisted Intelligent Flight: Never lose the drone. It returns automatically whenever battery is low, signal is lost or you press one key return. Also, it is so smart to fly at your will, following you automatically, flying along a path you set, or fly around a point in circles. You may focus on your photography and creation.
Configuration Upgrade: The 2 intelligent batteries works for 26 Mins/per battery for each charge; 52 Mins in total with 2 batteries; the long-life Brushless Motors have lower power consumption and give you a quieter flight; the foldable design and well-fitted carrying case make it easy to take the drone outdoor. DON’T use batteries from other brands, which may cause product issue or safety concern! PRODUCT SUPPORT AVAILABLE!
Simple Operation: Equipped Multi Sensors guarantee hovering with great stability and high quality pics taken under different flying environment; Optical Flow Positioning makes great effect when GPS signal is lost or weak. Functions, like one key start/stop, emergency stop, altitude hold and electric fence, keep it simple to control for even beginners.
Considerate Controller: The control range of 2.4GHz transmitter reaches to 3000 feet high range; battery level and GPS signal shown on the LED screen; a button to turn on or off the drone light is added; right hand throttle mode is available for left-hander. Remember to remove the scratch-proof film from the controller and the camera before use.
MAECENAS IACULIS
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8K Dual cameras UAV, Obstacle Avoidance Brushless Drone, Opt…
Specification
Product name: 8K dual-camera obstacle avoidance drone
Camera parameters: 8K
Extended size: 30*26*8 cm
Folded size: 7.5*13.5*8 cm
Flight system: optical flow positioning
Product color: gray
Battery life: about 20 minutes
Remote control distance: about 120 meters
Image transmission signal: 2.4G
Body battery: 3.7V 1800 MAh
Package list
Aircraft x1
Remote control x1
Body battery x1
Spare fan blades x4
USB charging cable x1
Screwdriver x1
Instruction x1
APP manual x1
Storage box x1
【Four-sided obstacle avoidance detection】Intelligent obstacle avoidance system automatically detects obstacles at 360° to effectively avoid collisions.
【HD Dual Camera 8K Presentation】The dual cameras can be switched freely to freely frame the scene, clearly restoring the shooting scene, and the image is smooth and delicate. 8K high-definition pixels, 90° manual adjustment, and 110° wide-angle shooting.
【Optical Flow Positioning Hover】Accurately locks the height and stabilizes the hover, preventing camera shake and making the picture more stable. And it comes with two image transmission technologies, 2.4G high-definition image transmission and real-time image transmission.
【Brushless power motor】Equipped with a powerful brushless motor, the wind resistance performance is steadily improved.
【One-button takeoff/landing】A variety of simple operation functions, one-button operation makes it easier for novices, and novices can become masters (one-button back/one-button roll/one-button take-off and landing/one-button headless/one-button speed adjustment).
Product name: 8K dual-camera obstacle avoidance drone
Camera parameters: 8K
Extended size: 30*26*8 cm
Folded size: 7.5*13.5*8 cm
Flight system: optical flow positioning
Product color: gray
Battery life: about 20 minutes
Remote control distance: about 120 meters
Image transmission signal: 2.4G
Body battery: 3.7V 1800 MAh
Package list
Aircraft x1
Remote control x1
Body battery x1
Spare fan blades x4
USB charging cable x1
Screwdriver x1
Instruction x1
APP manual x1
Storage box x1
【Four-sided obstacle avoidance detection】Intelligent obstacle avoidance system automatically detects obstacles at 360° to effectively avoid collisions.
【HD Dual Camera 8K Presentation】The dual cameras can be switched freely to freely frame the scene, clearly restoring the shooting scene, and the image is smooth and delicate. 8K high-definition pixels, 90° manual adjustment, and 110° wide-angle shooting.
【Optical Flow Positioning Hover】Accurately locks the height and stabilizes the hover, preventing camera shake and making the picture more stable. And it comes with two image transmission technologies, 2.4G high-definition image transmission and real-time image transmission.
【Brushless power motor】Equipped with a powerful brushless motor, the wind resistance performance is steadily improved.
【One-button takeoff/landing】A variety of simple operation functions, one-button operation makes it easier for novices, and novices can become masters (one-button back/one-button roll/one-button take-off and landing/one-button headless/one-button speed adjustment).
Diversity Car Antenna Adapter Fakra Plug to Type B Double So…
FAKRA TO DOUBLE FAKRA SOCKET CAR ANTENNA GPS NAVIGATION RNS-E ADAPTER BY KEPLE
SPECIFICATION:
Connector 1: Fakra Plug
Connector 2: Fakra Double Socket B Right Angled
Package Include: 1x Car Antenna Adapter
Cable lenght: 33.5cm / 13.19in
COMPATIBILITY:
VW RNS510 (MFD3), 310;
VW MFD2 (RNS2);
VW RCD 300 / 500 / 310 / 510
SKODA COLUMBUS;
MERCEDES COMMAND SYSTEMS W211 (E-CLASS);
MERCEDES APS 50;
AU DI RNS-E (DVD NAVIGATION);
AU DI MMI (A6 4F, A8 4E);
ANTENNA REPLACEMENT: This antenna adapter enables the use of existing vehicle antenna with single FAKRA connection when replacing existing radio unit in a radio / navigation system with double - FAKRA antenna input
HIGH QUALITY ADAPTER: FAKRA connectors are utilized for automotive RF solutions and provide multiple colors and key codes for ease of final assembly
EASY INSTALLATION: No cutting of original vehicle aerial harness required
RELIABLE QUALITY: High quality connectors and cable maintain the quality reception of the radio
COMPATIBLE: Au di, Volkswagen VW, Seat, Skoda Car models with RNS 510 / 315, RCD 310 GPS
SPECIFICATION:
Connector 1: Fakra Plug
Connector 2: Fakra Double Socket B Right Angled
Package Include: 1x Car Antenna Adapter
Cable lenght: 33.5cm / 13.19in
COMPATIBILITY:
VW RNS510 (MFD3), 310;
VW MFD2 (RNS2);
VW RCD 300 / 500 / 310 / 510
SKODA COLUMBUS;
MERCEDES COMMAND SYSTEMS W211 (E-CLASS);
MERCEDES APS 50;
AU DI RNS-E (DVD NAVIGATION);
AU DI MMI (A6 4F, A8 4E);
ANTENNA REPLACEMENT: This antenna adapter enables the use of existing vehicle antenna with single FAKRA connection when replacing existing radio unit in a radio / navigation system with double - FAKRA antenna input
HIGH QUALITY ADAPTER: FAKRA connectors are utilized for automotive RF solutions and provide multiple colors and key codes for ease of final assembly
EASY INSTALLATION: No cutting of original vehicle aerial harness required
RELIABLE QUALITY: High quality connectors and cable maintain the quality reception of the radio
COMPATIBLE: Au di, Volkswagen VW, Seat, Skoda Car models with RNS 510 / 315, RCD 310 GPS
DJI Avata Pro-View Combo – First-Person View Drone UAV Quadc…
Overview
DJI Avata is available in the following five purchasing options:
DJI Avata Pro-View Combo (DJI RC Motion 2): Includes DJI Avata drone and related accessories as well as DJI Goggles 2 and DJI RC Motion 2, which provide flexible controls and rich functions for an immersive flight experience.
DJI Avata Explorer Combo: Includes DJI Avata drone and related accessories as well as DJI Goggles Integra and DJI RC Motion 2, allowing you to experience comfortable flight with the integrated wearing design.
DJI Avata Pro-View Combo: DJI Goggles 2 and DJI Motion Controller provide an immersive sensory experience with intuitive control by hand and head movements.
DJI Avata Fly Smart Combo: Includes DJI FPV Goggles V2 and DJI Motion Controller, making it a cost-effective choice for immersive flight experience.
DJI Avata: Includes DJI Avata drone and related accessories, you can purchase goggles and remote controller separately.
Notes
1. DJI Avata is compatible with DJI Goggles 2, DJI Goggles Integra, DJI FPV Goggles V2, DJI FPV Remote Controller 2, DJI Motion Controller 2, and DJI Motion Controller.
2. The 155° FOV is only available when the aspect ratio is 4:3, and the video recording specification is 2.7K@50/60fps or 1080p@50fps/60fps; the aspect ratio is 16:9, and the video recording specification is 4K@50/60fps, 2.7K@50/60fps, or 1080p@50/60fps.
3. HorizonSteady is only available in Normal mode FOV with an aspect ratio of 16:9 and the video recording specification of 4K@50/60fps, 2.7K@50/60fps, or 1080p@50/60fps. RockSteady is unavailable when the video recording specification is 2.7K@100/120fps or 1080p@100/120fps.
4. DJI Avata only supports downward obstacle sensing when used with DJI FPV Remote Controller 2 or DJI Motion Controller in N Mode or S Mode.
5. DJI Avata must maintain a distance of at least 0.25 m from the ground."
Experience the Thrill of Flying - Enjoy total immersion and intuitive control with DJI Avata. When you combine Avata with the goggles and motion controller, flight becomes accessible to all.
Flight has Never Been Easier - With the DJI Motion Controller, intuitive flight is in your hands. Squeeze the trigger and bolt forward or turn a corner with the swivel of your wrist.
Ultra-Smooth 4K Footage - Avata features an upgraded camera system so that no extra attachments are needed. Enjoy next-level imagery with the 1/1.7-inch sensor, 155° FOV, and flagship stabilization.
Palm-Sized and Agile - The lightweight and compact design of Avata makes it easy to carry and more capable of agile maneuvers. Fly between gaps, though branches, and take it with you on any adventure.
Be Bold, Fly Far - Avata offers an impressive 18-minute flight time and upgraded safety. With the built-in propeller guard, it can handle minor contact, stay in the air, and keep on flying.
Backed by Flagship Transmission - Get a sharp and responsive HD live feed with DJI O3+ video transmission at distances of up to 10 km.
Note: DJI Goggles 2 and DJI RC Motion 2 Controller provide an immersive sensory experience with intuitive control via hand and head movements, and more powerful functions bring more advanced flight modes.
DJI Goggles 2 Dimensions (L×W×H): With antennas folded: 167.40×103.90×81.31 mm. With antennas unfolded: 196.69×103.90×104.61 mm
DJI Avata is available in the following five purchasing options:
DJI Avata Pro-View Combo (DJI RC Motion 2): Includes DJI Avata drone and related accessories as well as DJI Goggles 2 and DJI RC Motion 2, which provide flexible controls and rich functions for an immersive flight experience.
DJI Avata Explorer Combo: Includes DJI Avata drone and related accessories as well as DJI Goggles Integra and DJI RC Motion 2, allowing you to experience comfortable flight with the integrated wearing design.
DJI Avata Pro-View Combo: DJI Goggles 2 and DJI Motion Controller provide an immersive sensory experience with intuitive control by hand and head movements.
DJI Avata Fly Smart Combo: Includes DJI FPV Goggles V2 and DJI Motion Controller, making it a cost-effective choice for immersive flight experience.
DJI Avata: Includes DJI Avata drone and related accessories, you can purchase goggles and remote controller separately.
Notes
1. DJI Avata is compatible with DJI Goggles 2, DJI Goggles Integra, DJI FPV Goggles V2, DJI FPV Remote Controller 2, DJI Motion Controller 2, and DJI Motion Controller.
2. The 155° FOV is only available when the aspect ratio is 4:3, and the video recording specification is 2.7K@50/60fps or 1080p@50fps/60fps; the aspect ratio is 16:9, and the video recording specification is 4K@50/60fps, 2.7K@50/60fps, or 1080p@50/60fps.
3. HorizonSteady is only available in Normal mode FOV with an aspect ratio of 16:9 and the video recording specification of 4K@50/60fps, 2.7K@50/60fps, or 1080p@50/60fps. RockSteady is unavailable when the video recording specification is 2.7K@100/120fps or 1080p@100/120fps.
4. DJI Avata only supports downward obstacle sensing when used with DJI FPV Remote Controller 2 or DJI Motion Controller in N Mode or S Mode.
5. DJI Avata must maintain a distance of at least 0.25 m from the ground."
Experience the Thrill of Flying - Enjoy total immersion and intuitive control with DJI Avata. When you combine Avata with the goggles and motion controller, flight becomes accessible to all.
Flight has Never Been Easier - With the DJI Motion Controller, intuitive flight is in your hands. Squeeze the trigger and bolt forward or turn a corner with the swivel of your wrist.
Ultra-Smooth 4K Footage - Avata features an upgraded camera system so that no extra attachments are needed. Enjoy next-level imagery with the 1/1.7-inch sensor, 155° FOV, and flagship stabilization.
Palm-Sized and Agile - The lightweight and compact design of Avata makes it easy to carry and more capable of agile maneuvers. Fly between gaps, though branches, and take it with you on any adventure.
Be Bold, Fly Far - Avata offers an impressive 18-minute flight time and upgraded safety. With the built-in propeller guard, it can handle minor contact, stay in the air, and keep on flying.
Backed by Flagship Transmission - Get a sharp and responsive HD live feed with DJI O3+ video transmission at distances of up to 10 km.
Note: DJI Goggles 2 and DJI RC Motion 2 Controller provide an immersive sensory experience with intuitive control via hand and head movements, and more powerful functions bring more advanced flight modes.
DJI Goggles 2 Dimensions (L×W×H): With antennas folded: 167.40×103.90×81.31 mm. With antennas unfolded: 196.69×103.90×104.61 mm
Simplified UAV Design for Students
Every year, hundreds of students participate in UAV design competitions such as AIAA Design Build Fly or SAE Aero Design: Each team has less than one school year to design, build, and fly an airplane, ranging from a small remote-control airplane to a large autonomous vehicle capable of flying itself and of dropping packages (or even smaller airplanes) that land on a target.
For students without an aeronautical engineering background, who are majoring in fields like mechanical engineering or computer science, many questions naturally arise, such as:
• What wing area is necessary for good flight characteristics?
• How are the optimal aspect ratio and wingspan determined?
• What is a realistic weight goal for an aircraft of this size and engine power?
• How is the best airfoil selected?
• What is the ideal length for the tail cone / tail boom(s)?
• How are the sizes of the tail fins and control surfaces calculated?
• Fewer ribs require a thicker spar, so… What rib spacing will lead to the minimal total structural weight of the wings?
• How can a wing spar be designed that has the required strength and stiffness as well as minimal weight, while also allowing the wing to be easily disassembled into multiple sections for transportability?
• What electronic components are typically found in an RC airplane? How do they work? How can their required capabilities for my airplane (e.g. power and torque) be calculated?
I have mentored multiple groups of students. This book collects my answers to these questions, mostly consisting of step-by-step analyses that use methods and best-practices from the aeronautical industry, from engineering textbooks, and from the expertise of RC airplane builders and ultralight designers.
This book is also a great resource for any hobbyist who wants to design and build an RC airplane while doing at least a little bit of engineering beyond “That looks about right” or “I’ll just copy the way it’s done in similar airplanes”. The simplified analyses in this book can be done by anyone with an understanding of high-school physics and will allow for an airplane that has minimal weight and minimal drag while being able to perform a desired mission (i.e. carrying a desired payload at a desired speed, and being able to take off and land on a desired runway length and to climb out at a desired angle).
The same principles apply to designing an airplane that can carry one or more humans… but, for that, I recommend Daniel Raymer’s Simplified Airplane Design for Homebuilders, a terrific book that was my main inspiration for writing Simplified UAV Design for Students. (In other words: Please do not trust your life to a vehicle that was designed using the simplified equations in my book!)
ASIN : B0CH2BLS3F
Publisher : Independently published (August 31, 2023)
Language : English
Paperback : 169 pages
ISBN-13 : 979-8392026944
Item Weight : 9.1 ounces
Dimensions : 6 x 0.43 x 9 inches
For students without an aeronautical engineering background, who are majoring in fields like mechanical engineering or computer science, many questions naturally arise, such as:
• What wing area is necessary for good flight characteristics?
• How are the optimal aspect ratio and wingspan determined?
• What is a realistic weight goal for an aircraft of this size and engine power?
• How is the best airfoil selected?
• What is the ideal length for the tail cone / tail boom(s)?
• How are the sizes of the tail fins and control surfaces calculated?
• Fewer ribs require a thicker spar, so… What rib spacing will lead to the minimal total structural weight of the wings?
• How can a wing spar be designed that has the required strength and stiffness as well as minimal weight, while also allowing the wing to be easily disassembled into multiple sections for transportability?
• What electronic components are typically found in an RC airplane? How do they work? How can their required capabilities for my airplane (e.g. power and torque) be calculated?
I have mentored multiple groups of students. This book collects my answers to these questions, mostly consisting of step-by-step analyses that use methods and best-practices from the aeronautical industry, from engineering textbooks, and from the expertise of RC airplane builders and ultralight designers.
This book is also a great resource for any hobbyist who wants to design and build an RC airplane while doing at least a little bit of engineering beyond “That looks about right” or “I’ll just copy the way it’s done in similar airplanes”. The simplified analyses in this book can be done by anyone with an understanding of high-school physics and will allow for an airplane that has minimal weight and minimal drag while being able to perform a desired mission (i.e. carrying a desired payload at a desired speed, and being able to take off and land on a desired runway length and to climb out at a desired angle).
The same principles apply to designing an airplane that can carry one or more humans… but, for that, I recommend Daniel Raymer’s Simplified Airplane Design for Homebuilders, a terrific book that was my main inspiration for writing Simplified UAV Design for Students. (In other words: Please do not trust your life to a vehicle that was designed using the simplified equations in my book!)
ASIN : B0CH2BLS3F
Publisher : Independently published (August 31, 2023)
Language : English
Paperback : 169 pages
ISBN-13 : 979-8392026944
Item Weight : 9.1 ounces
Dimensions : 6 x 0.43 x 9 inches
Unmanned Aerial Vehicles: Robotic Air Warfare 1917–2007 (New…
Unmanned aerial vehicles (UAVs) are the most dynamic field of aerospace technology, and potentially the harbingers of new aviation technology and tactics. They have only emerged from the shadows in recent years, but in fact have been in use for decades. After some limited use in World War II, UAVs began to emerge as a substitute for manned reconnaissance aircraft in the 1950s for missions deemed too dangerous to risk an aircrew. Used in significant numbers in the Vietnam War as well as less-heralded missions such as spy flights over China in the 1950s and 1960s, the contemporary UAV began to emerge in the 1980s.
This book examines the development of this unique and mysterious technology, revealing how it has changed combat through the years and speculating on its potential to transform the nature of warfare in the future. Steven J Zaloga examines the pioneering use of UAVs conducted by the Israeli air and the use of UAVs during Operation Desert Storm. Packed with rare, recently declassified photographs and detailed full-color cutaways, this title goes on to investigate the wide deployment of UAVs over Iraq and Afghanistan today, and considers the possible future of the UAV as an actual military weapon.
From the Publisher
Beautifully illustrated battlescenes are included to bring the narrative of the conflict to life.
Cutaway diagramsSpecially commissioned full colour illustrations are included alongside labels and comprehensive captions to give a full breakdown of the machines and ships used in battle.
PhotographsEach volume features a wide range of photographs, which provide unparalleled detail of the uniforms and weaponry used by the combatants.
Publisher : Osprey Publishing; Illustrated edition (October 21, 2008)
Language : English
Paperback : 48 pages
ISBN-10 : 1846032431
ISBN-13 : 978-1846032431
Item Weight : 7.5 ounces
Dimensions : 7.19 x 0.12 x 9.89 inches
X800 Drone with Camera for Adults Kids, 1080P FPV Foldable Q…
From the brand
[Foldable and Portable Design]: SIMREX X800 mini drone is lightweight as a whole, equipped with a 1080P camera, adjustable at 90 ° lens, weighing only 96g, stylish and lightweight, folding design is convenient for you to carry around, and equipped with RGB lights, without fear of flying at night, providing the perfect support for your indoor activities and outdoor travel shooting!
[Altitude Hold & Optical Flow Positioning] The altitude hold function can keep the drone hovering at a fixed height to help you get wonderful videos and photos. In addition, the drone also uses optical flow positioning technology, Hovering accurately in any position by the Optical Positioning camera, Friendly to beginners, which is very suitable for beginner players.
[One Key Start/Landing] Our RC drone features a one-key start/landing button, allowing for easy and hassle-free control, and enabling you to enjoy a one-button flight anytime and anywhere. This makes the sky and nature your ultimate playground
[Multifunctional Drone] Enjoy intelligent features such as flying along a set path, gravity sensing, 360° flips, headless mode, and 3-speed adjustment for easy control.
[Longer Game Experience Time] Our toy drone can fly for up to 22 minutes and is equipped with 2 1000mAh modular batteries. Best drone for kids 10-12. It also has anti-interference, low power, and out-of-control protection functions for a safer and more confident flying experience
SIMREX is a leadership and lively 3C digital accessory and electronic brand. SIMREX provides innovative and powerful products to customers, transmit the brand culture of “Essential Product Life” and try to meet the customers' requirements.
Mini drone for kids
Drone with camera
Simrex drone series
[Foldable and Portable Design]: SIMREX X800 mini drone is lightweight as a whole, equipped with a 1080P camera, adjustable at 90 ° lens, weighing only 96g, stylish and lightweight, folding design is convenient for you to carry around, and equipped with RGB lights, without fear of flying at night, providing the perfect support for your indoor activities and outdoor travel shooting!
[Altitude Hold & Optical Flow Positioning] The altitude hold function can keep the drone hovering at a fixed height to help you get wonderful videos and photos. In addition, the drone also uses optical flow positioning technology, Hovering accurately in any position by the Optical Positioning camera, Friendly to beginners, which is very suitable for beginner players.
[One Key Start/Landing] Our RC drone features a one-key start/landing button, allowing for easy and hassle-free control, and enabling you to enjoy a one-button flight anytime and anywhere. This makes the sky and nature your ultimate playground
[Multifunctional Drone] Enjoy intelligent features such as flying along a set path, gravity sensing, 360° flips, headless mode, and 3-speed adjustment for easy control.
[Longer Game Experience Time] Our toy drone can fly for up to 22 minutes and is equipped with 2 1000mAh modular batteries. Best drone for kids 10-12. It also has anti-interference, low power, and out-of-control protection functions for a safer and more confident flying experience
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