External shutdown for RaspberryPi

„ATXRaspi is a smart power controller for RaspberryPi or similar embedded systems running from a 5V input. It allows you to have an external shutdown button to turn off your target system without a need to login or to issue manual shutdown/sudo halt commands.“

http://lowpowerlab.com/atxraspi/#installation

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An introduction to wireless charging

“ An introduction to wireless charging: changing the way we think about power

Smartphones are changing the way we live our lives, both online and off. With each new model, we are used to getting more processor speed, new features and programs, and entire new ways of using them. Despite increased capabilities, battery life simply hasn’t kept up. For most users, phones are sending out sad bleeps by lunchtime, signaling a low battery.

Wireless charging is set to change this. We want to eradicate the problem of the dead battery.“

Read more : http://www.wirelesspowerconsortium.com/what-we-do/how-it-works/

„The Wireless Power Consortium created and maintains Qi (pronounced “chee”), the global standard for compatible wireless charging. The Qi standard guarantees that any device carrying the Qi logo will work with any charging surface that carries the Qi logo, regardless of manufacturer or brand.

Qi is backed by over 100 industry-leading companies, who support it because it allows design freedom, product differentiation, and guaranteed wireless charging interoperability .WPC also provides easy access to the essential patents.“

http://www.wirelesspowerconsortium.com/about/frequently-asked-questions.html

Photographs forbidden in nuclear power but not for the obvious Reasons

Ok, that’s really strange:

“ Note: there are no photographs; nor did I take a notepad, so I’m writing this from memory. Cameras were verboten — not because of security, but as an operational precaution. For starters, some embedded controllers in racks in the auxilliary deisel generator control rooms have EPROMs which have been known to be erased by camera flashes in the past, triggering a generator trip; for seconds, we had to wear protective clothing — try explaining to a visitor that their expensive Nikon has been contaminated and needs to be left behind!“

http://www.antipope.org/charlie/blog-static/rants/nothing-like-this-will-be-buil.html via http://blog.fefe.de/?ts=b35d9d4a