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Archive for the ‘drones’ category: Page 46

Mar 1, 2022

Emesent launches Hovermap ST autonomous drone LiDAR mapping and surveying payload

Posted by in categories: drones, mapping, robotics/AI

Autonomous drone mapping startup Emesent has announced its latest survey-grade LiDAR payload: Hovermap ST. The lightweight, IP65-rated solution is being launched with Emesent’s new Automated Ground Control feature that, the company stresses, enables autonomous data capture in harsher environments than ever and for a wider range of use cases.

Emesent’s LiDAR payloads leverage a process called simultaneous localization and mapping (SLAM), in which a drone builds a map and, at the same time, localizes the drone in that map.

Feb 28, 2022

NASA’s new bird-like drones could unlock the secrets of Venus’ atmosphere

Posted by in categories: drones, space

Feb 28, 2022

DIY drone: Learn How to Build Your Own Quadcopter Drone

Posted by in category: drones

Feb 26, 2022

Ukraine’s Defense Ministry asks drone owners to help repel invading Russian troops

Posted by in category: drones

As battles erupt in Kyiv, Ukraine’s Ministry of Defense appeals private drone owners to use or donate them to repel invading Russian troops.


Ukraine’s Defense Ministry has called upon citizens who own drones to use them in support of the country’s armed forces in their battle to prevent the invading Russian Army from capturing the capital, Kyiv.

Continue reading “Ukraine’s Defense Ministry asks drone owners to help repel invading Russian troops” »

Feb 26, 2022

Watch: Drones capture an epic new 360-degree video of SpaceX Starship

Posted by in categories: drones, space travel

SpaceX prepares its first orbital Starship flight.

Drone capture 360-degree video of SpaceX Starship.


SpaceX is currently developing its Starship rocket at the firm’s Starbase facility in Texas. The project could lead to a giant, fully-reusable rocket system.

Feb 25, 2022

Skyfire unveils SF2 drone for public safety and critical missions

Posted by in category: drones

Specialized Atlanta-based UAV consulting firm Skyfire is itself launching into aerial action with the release of its SF2 drone, which is designed and manufactured specifically for public safety and critical sector operators.

Skyfire’s entry into specialized drone manufacturing with the SF2 was motivated by the understanding, insight, and feedback it gathered in its work with hundreds of US public safety and critical sector clients as they navigated the Federal Aviation’s certification of authorization process. Relying on that information flow from diverse partners, Skyfire decided to provide solutions to shortcomings and close operational gaps it was hearing about.

Feb 23, 2022

Draganfly’s spraying drones reach 500,000-seat sanitization milestone

Posted by in categories: drones, health

Draganfly is celebrating a major health and safety milestone with its spraying drones disinfecting more than 500,000 seats using the company’s proprietary pathogen and surface sanitizer technology.

The company’s spraying technology was also implemented ahead of NASCAR’s June 2021 tripleheader weekend at the Nashville Superspeedway and Barrett-Jackson’s March 2021 collector car auction in Arizona.

Feb 22, 2022

DJI updates Fly app, Mavic Air 2 drone firmware

Posted by in category: drones

DJI is rolling out a new firmware update for the Mavic Air 2 drone. At the same time, the technology giant is updating the DJI Fly app to version 1.5.10.

According to DJI’s release notes, the update “optimizes user experience and improves overall software stability.”

Feb 20, 2022

Reverse Engineering A 900 MHz RC Transmitter And Receiver

Posted by in categories: drones, engineering

For those building their own remote controlled devices like RC boats and quadcopter drones, having a good transmitter-receiver setup is a significant factor in the eventual usability of their build. Many transmitters are available in the 2.4 GHz band, but some operate at different frequencies, like the 868/915 MHz band. The TBS Crossfire is one such transmitter, and it’s become a popular model thanks to its long-range performance.

When [g3gg0] bought a Crossfire set for his drone, he discovered that the receiver module consisted of not much more than a PIC32 microcontroller and an SX1272 LoRa modem. This led him to ponder if the RF protocol would be easy to decode. As it turns out, it was not trivial, but not impossible either. First, he built his own SPI sniffer using a CYC1000 FPGA board to reveal the exact register settings that the PIC32 sent to the SX1272. The Crossfire uses channel hopping, and by simply looking at the register settings it was easy to figure out the hopping sequence.

Continue reading “Reverse Engineering A 900 MHz RC Transmitter And Receiver” »

Feb 17, 2022

Researchers combine piezoelectric thin film and metasurfaces to create lens with tunable focus

Posted by in categories: biotech/medical, drones

For the first time, researchers have created a metasurface lens that uses a piezoelectric thin film to change focal length when a small voltage is applied. Because it is extremely compact and lightweight, the new lens could be useful for portable medical diagnostic instruments, drone-based 3D mapping and other applications where miniaturization can open new possibilities.

“This type of low-power, ultra-compact varifocal lens could be used in a wide range of sensor and imaging technologies where system size, weight and cost are important,” said research project leader Christopher Dirdal from SINTEF Smart Sensors and Microsystems in Norway. “In addition, introducing precision tunability to metasurfaces opens up completely new ways to manipulate light.”

Dirdal and colleagues describe the new technology in the journal Optics Letters. To change , a voltage is applied over lead zirconate titanate (PZT) membranes causing them to deform. This, in turn, shifts the distance between two metasurface lenses.

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