Leap Motion Unboxing

My first off topic post: Leap Motion.

For those who never have heard about, it is a revolutionary human-machine interface supposed to allow controls like in "Minority Report" (the movie, not the K. Dick novel).

I pre-ordered some time ago and got it today. I just tested again, and the usage is not obvious. While waiting for a more complete review of the product, I share here's my unbowing session.

Coming from a Fedex envelope Fedex from Czech Republic (shipped 07-24, received 07-29)

Protected by a thin layer of foam.

Here is the Leap boxe:

A word just pretentious "Welcome to a whole new world". It specifies the URL where to download the software and drivers (no CD in the box).

The Leap Motion itself, with a sticker to remind the URL.

Two USB cables below (one 50cm and 150cm)

Leap Motion connected (does not work if the sticker is left)

No time to say more tonight. I'll test, and I post again.

Fun with logs: crawling robots

After studying the "human" visits logs of my log, I have checked the visits done by bots identifiable by their userAgent ... And we can say they are legion.

The major search engines are of course present.

Google

"Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"

Bing (Microsoft)

"Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)"

and another Microsoft bot for Msn
"msnbot-media/1.1 (+http://search.msn.com/msnbot.htm)"

Yahoo! (I thought they used the Bing search engine ?)

"Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)"
"Yahoo! Slurp China"

But also some lesser known engines:

Exalead (French)

"Mozilla/5.0 (compatible; Exabot/3.0; +http://www.exabot.com/go/robot)"

Voilà (French)

"Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.8.1) VoilaBot BETA 1.2 (support.voilabot@orange-ftgroup.com)"

Yacy (a free and decentralized search engine I discovered thanks to my logs)

"yacybot (webportal-global; amd64 Linux 3.6.10-nrj-desktop-1rosa; java 1.7.0_b147-icedtea; Europe/fr) http://yacy.net/bot.html"


Baidu (Chinese)

"Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)"

Jike (Chinese)

"Mozilla/5.0 (compatible; JikeSpider; +http://shoulu.jike.com/spider.html)"

Yandex (Russian)

"Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)"
"Mozilla/5.0 (compatible; YandexImages/3.0; +http://yandex.com/bots)"

Blekko



"Mozilla/5.0 (compatible; Blekkobot; ScoutJet; +http://blekko.com/about/blekkobot)"

gimme60





"gimme60 (Gimme60 Store ID Bot; gimme60.com)"


In addition to these search engines, there are also extractors bots data whose activities are less visible on the Internet.

alexa.com (Ranking site)

"ia_archiver (+http://www.alexa.com/site/help/webmasters; crawler@alexa.com)"

a Twitter bot

"Twitterbot/1.0"

A site using Twitter

"Twitmunin Crawler http://www.twitmunin.com"

And many societies which collect and cross data to sale them to their customers
80legs

http://www.80legs.com/webcrawler.html;) Gecko/2008032620"


panscient

"panscient.com"

Netcraft

"Mozilla/5.0 (compatible; NetcraftSurveyAgent/1.0; +info@netcraft.com)"

ahrefs

"Mozilla/5.0 (compatible; AhrefsBot/4.0; +http://ahrefs.com/robot/)"


gnip

"UnwindFetchor/1.0 (+http://www.gnip.com/)"

Topsy

"Mozilla/5.0 (compatible; Butterfly/1.0; +http://labs.topsy.com/butterfly/) Gecko/2009032608 Firefox/3.0.8"




And a few small bots that I was not able to know the role
"Mozilla/5.0 (compatible; Ezooms/1.0; ezooms.bot@gmail.com)"
"Web front page analyser. robots.txt complaint (norw.acd.inst@gmail.com)"

Next time I'll talk about traces left by geeks on the teapot log!

Raspberry Pi power consumption - Half year

Here, finally, the power consumption after 6 months. I delayed my message to compensate the interruption caused to bug the last month.

The total consumption for an half year was year 10,7 kWh.

The total power consumption for June was 1,6 kWh. It's 0,2 kWh less than my usual per month consumption  Maybe the reboot and reinstallation of the system was beneficial.

Uptime of the Teapot is 99,82%. The service interruption had no impact, because I was able to plug my spare system very quickly.

1376 unique visitors were on the teapot in June.

crédit photo: Benjamin Stäudinger (Lightning #3) [CC-BY-2.0], via Wikimedia Commons

Teapot is back!

The blackout is over and the service is running normally again since Wednesday, June 12.  I made ​​a complete reinstallation of the teapot on another SD card (Class 10). It also helped me to correct some of my previous post.


At first sight the origin of the bug was data corruption in the file system. I had been able to reboot the system from the original SD card after doing some repairs with the e2fsck command, but I decided to reinstall anyway.

The uptime has been little affected by the quick connection of my Raspberry Pi spare. The power consumption measured at the end of the month will be slightly impacted, because I had not reconnected the power meter during the blackout.

Teapot is down - debugging in progress

My teapot crashed yesterday. From this moment, I'm using an backup of my system with my spare Raspberry Pi.

I can't lie, this Raspberry Pi isn't in a teapot. I'll post again as soon as possible. When the teapot will be Up again.

My first diagnostic is a crash of the SD Card, but i'm not sure of that.

IR thermometer received

I just received my IR thermometer, and I started to play with it.

The quality of the product feels astonishingly good for a so cheap product. The touch of the plastic and the grip are nice. Usage is very simple: just aim and pull the trigger. Other buttons allow you to switch between Fahrenheit and Celsius, to turn off the laser and to backlight the screen.

Now I need time to measure my various power supply, using a minimal protocol. Meanwhile, this tool is awesome, I spent a good time to measure the world around me: light bulb, coffee, fridge and freezer, wine ...

For example, this pot of ice!

And when everything was measured, thanks to its laser pointer, and its pistol grip (and a little imagination) can still exploring uncharted worlds armed of this phaser.

"Beam me up, Scotty"

Raspberry Pi power consumption - Fifth month

June 2, nearly an half year after the beginning of my Raspberry Pi power consumption study.

The total consumption since the beginning of the year is 9,1 kWh. The total power consumption for May was 2 kWh. That's a 0,2 kWh more than my usual per month consumption. Maybe my new power adapter is the cause.

Uptime of the Teapot is 99,7%.

1817 unique visitors were on the teapot in May.

crédit photo: By Timo Newton-Syms from Helsinki, via Wikimedia Commons