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September, 2018, Hackaday

September, 2018, Hackaday

Researchers have bot playing around with various oddball forms of robot locomotion, surely, wij’ve seen it all, toevluchthaven’t wij? Not so! Fortunate for us, [researchers at Stanford] are now demonstrating us a fresh way for robots to literally extrude themselves from point A to point B.

This robot’s particular maneuverability for mechanism involves unwinding itself inwards out. From a stationary base, a reel caches meters of the robot’s uninflated polyethylene bod, which it deploys by pressurizing. Researchers can make utter 3D turns by varying the amount of inflated air te outer control chambers. What’s more, they can place end effectors or even payloads at the peak of the growing end with their position held ter place by a cable.

Spil wij can imagine, any robot that can squeeze its way up to 72 meters long can have dozens of applications, and the folks at Stanford have explored a host of nooks and crannies of this space. Along the way, they deploy ingewikkeld antenna shapes into the air, supply petite payloads, extinguish fires, and squeeze through all sorts of uninviting places such spil flytraps and even a bloembed of fucks. Wij’ve placed a movie below the pauze, but have a look at Ars Technica’s utter movie suite to get a sense of the sheer multitude of applications that they imparted upon their fresh creation.

Biomimetics tends to get us to sob “gecko feet” or “snake robots” without thinking too hard. But thesis forms of locomotion that come to mind all seem to derive from the animal kingdom. One key factor of this soft robot is that its stationary base and vine-like locomotion both have its roots ter the plant kingdom. It’s a wilsbeschikking to just how unexplored this sphere may be, and that researchers and robots will proceed to develop fresh ways of artificially “getting around” for years to come.

Thanks for the peak, [Jacob!]

Cell phone towers are something wij miss when wij’re out of range, but imagine how wij’d miss them if they had bot demolished by disastrous weather. Ter such emergencies it is more significant than everzwijn to call loved ones, and tell them wij’re safe. [Matthew May] and [Brendan Harlow] aimed to make their own secure and open-source cellular network antenna for those occasions. It presently supports calling inbetween connected phones, text messaging, and if the base station has a hard-wired internet connection, users can get online.

This wasgoed a senior project for a security class, and it seems that the bulk of their work wasgoed te following the best practices set by the Center for Internet Security. They adopted a monster intended for the Debian 8 operating system which wasn’t a flawless getraind. According to Motherboard their work scored an A+, and wij agree with the professors on this one.

Last year, the same SDR houtvezelplaat, the bladeRF, wasgoed featured te a GSM tower hack with a more sinister edge, and of course Hackaday is rife with SDR projects.

Thank you [Alfredo Garza] for the peak.

Wij’ve had our eye on [davedarko’s] LAMEBOY project for a while now, a handheld setup te toughly the same form factor spil the classic Nintendo Spel Boy. It’s remarkable how approachable portable electronic vormgeving has become, and that’s truly what makes this interesting. The vormgeving is beautiful, and the closer you look, the more respect you have for what [dave] is doing.

Right now his proof of concept has a 3D printed enclosure whose face is the printed circuit houtvezelplaat. Wij love how the lower left corner of the PCB slips under a pocket ter the case, which makes it possible to use just one screw to secure the two together te the upper right.

The LAMEBOY is built around an ESP8266 module. Anyone who has used one knows this chip contains a fair amount of horsepower, but very little I/O. [Dave] has a lotsbestemming going on with an LCD screen, six user buttons, a USB to I/O chip, and an SD card slot. He took two approaches to solve this dilemma. Very first he grabbed a PCF8574 port expander, and 2nd he’s offloaded the color control of the screen backlights to an ATtiny85 (running a BlinkM clone).

Below you can see some early spel tests on the perfboard prototype. Wij toevluchthaven’t seen spel play on the most latest prototype (there is a screen color test movie te his latest project loom) but it sounds spil tho’ [dave] plans to make use of the Gamebuino framework. This should mean that there will be no shortage of cool ROMs to explosion.

It is difficult to waterput yourself spil an able-bodied person into the practices of a person with a physical disability. Able-bodied people are quick with phrases such spil “Confined to a wheelchair” with little idea of what that indeed means, and might be astonished to meet wheelchair users who would point out that far from being a prison their chair might, te fact, be their device of liberation.

It is also difficult for an able-bodied person to understand some of the physical effects of using a wheelchair. Te particular, some wheelchair users with paralysis can suffer from dangerous pressure sores without being aware of them due to their loss of feeling. Such people, therefore, have a staatsbestel of exercises designed to relieve the pressure that causes the sores, and thesis exercises vereiste be ended spil often spil every half hour. They can be inconvenient and difficult to perform, so te an effort to help people ter that position there is a Hackaday Prize entry that provides terugkoppeling on how effectively the exercise staatsbestel has bot performed.

The project puts an array of force-sensitive resistors on the bedding of the chair underneath its cushion and monitors them with an Arduino before providing a terugkoppeling to the user via a set of LEDs. So far they have created a very first prototype, and are awaiting parts and recruiting users for testing a 2nd.

It would be nice to think that this project would have a positive influence on the lives of the people it aims to help. It’s not the very first time the Hackaday Prize has ventured into this field, spil the 2015 winner demonstrates.

Related movie: $800 Electrical Bill + Gpu Mining Profitability [Zencash] + [Zcash] [Zcash Profitability]


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