Open Hardware: Arduino, Raspberry Pi, and More
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Everactive launches batteryless IoT devkit using Evernet low-power protocol - CNX Software
Everactive has launched a batteryless IoT devkit to let engineers evaluate its ultra-low-power energy harvesting solution and the Evernet wireless protocol for the “Hyperscale” Internet of Things.
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This Andor-inspired droid moves like the real B2EMO
The new Andor TV show, set in the Star Wars universe prior to the events of Rogue One, is already a hit and a big part of that is thanks to the B2EMO droid. Like many of the other droids in the Star Wars franchise, B2EMO manages to be very expressive despite being cold, hard steel. It conveys emotions and expressions through complex movement, which James Bruton recreated when he built his B2EMO-inspired droid.
B2EMO looks like a conventional rover robot, but it is quite flexible. It can drive in any direction thanks to its omnidirectional wheels and also tilts, leans, and stretches, which makes it seem more like a beloved pet than a soulless robot. The Andor production team actually built a functional B2EMO for filming. Bruton put his own unique spin on the design to create a B2EMO replica that is affordable enough for a hobbyist to tackle.
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Overclock your Raspberry Pi to a blistering 2.5GHz
Overclocking isn’t a new idea, and it isn’t limited to high-end processors, either. In high school I overclocked the Intel Xscale CPU in my Palm Tungsten T3 from 400Hz to 600Hz, just so I could play my Quicktime copy of the trailer for The Matrix Revolutions more smoothly. (In hindsight, it wasn’t worth it.) But the point is, you can overclock almost any computer processor, as one enterprising modder did to the little-SoC-that-could, the $35 Raspberry Pi.
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Raspberry Pi Compute Module 4 Delidded and Overclocked to 2.5 GHz
According to Kuleshov, he not only overclocked the CM4 but also managed to maintain a good degree of performance stability. The only caveat for ensuring the performance is managing the heat. Kuleshov explains that the temperature must be kept under 6 degrees Celsius (42 degrees Fahrenheit). You can find a detailed look at the overclocking benchmarks over at pibenchmarks.com.
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Mini Mars Rover Runs On Pi Pico W
NASA’s Mars Rovers are robots that have inspired many budding engineers around the world. [Nikodem Bartnik] had a particular fondness for them himself, and set out to build a miniature version of his very own.
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Turn Your Original Raspberry Pi into a ZX Spectrum Computer With ZXBaremulator
The ZX Spectrum computer was 40 years old in 2022. Released in the UK and Europe around the same time as the Commodore 64, this British-built budget home computer contributed hugely to the nascent computing and games industry. These days, ZX Spectrums are rare, but they can be emulated.
A British-built computer that you may be more familiar with is the Raspberry Pi. You could install an emulator on Raspberry Pi OS to run ZX Spectrum software, or you could try something different: a bare metal emulator like ZXBaremulator.
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Experts Warn That Off-The-Shelf Drones Are Potential Weapons For Terrorists
Across Africa, drones — both sophisticated military hardware and off-the-shelf hobby models — are changing the nature of conflicts. Experts fear that extremist groups are working to acquire them and use them for asymmetric attacks.
“Until recently, drones were used exclusively by state actors in Africa,” researcher Ezenwa Olumba recently wrote in an article published by the London School of Economics’ Firoz Lalji Institute for Africa. “Recent reports regarding the use of drones [by non-state actors] and their sophistication are concerning.”
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Build Your Own Smartphone
This tutorial brings you from start to finish in constructing your very own smartphone. You will start by 3D printing a case, then soldering printed circuit boards together, assembly, and finally installing a mobile OS onto your phone and using Python to make it yours. You can learn more about this project at hackaday.io/project/5083