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April 12, 2012 @ 16:29

Enable ad-hoc wifi networking on Android

 
Google has disabled wireless ad-hoc networking in Android from day one. Underlying Android libraries and wifi stack support adhoc networking and so far Google has provided no explanation why it still, even after four years, leaves adhoc disabled.
 
There has been huge outcry from Android users over this issue, but there is still no answer from Google Android developers.
 
There are few suggestons on xda-developers forum, and also on Stackoverflow, but most solution so far consisted of using new rom that had ad-hoc support enabled or manually messing about system config files.
 
But wait, there is an app for that!
 
Read rest of story…

Filed under english, gadgets, linux, tips&tricks · No Comments »

February 9, 2012 @ 12:41

Snježni wifi kraljevi

Od danas Hrvatska uz natjecanje Snježna kraljica ima još jedno novo natjecanje a to su Snježni wifi kraljevi ;)
 
U natjecanju mogu sudjelovati svi zainteresirani, cilj je u što ekstremnijim uvjetima postaviti što više nove wifi opreme na krovove zgrada. Pravila su jednostavna a nagrade neprocjenjive.
 
Pogledajte kako je bilo u Osijeku prvom timi iz ekipe OsijekWirelessa koji su se okušali u ovome novome sportu na ovome online albumu.

 

Filed under croatian, diy, wireless · 2 Comments »

February 7, 2012 @ 16:09

Meteo wifi mesh točke

 
Krenula je zanimljiva rasprava na CWN (Croatian Wireless Networks) google grupi o Meteo stanicama. Prenosim svoj dio rasprave i pošto vjerujem da će ova tema biti biti zanimljiva i široj geek publici ;)

Ako nekoga zanima i pristup CWN grupi samo se treba javiti i dobije pozivnicu.
 

>
> @Valent: što to točno radite? nisam upućen
 

Za prave profi i manje profi vremenske stanice je definitivno najupućenija Istramet ekipa [1] pošto su oni napravili po Istri čitavo čudo meteo stanica i bolje prognoze imaju od DHMZ-a ;) Bili su i na tv-u [2]. Vjerujem da oni najbojle znaju koje stanice valjaju i koje ne, ovisno o kvaliteti i uvjetima u kojima trebaju raditi.
 
Ono što se radi preko projekta sa ekipom iz Wlan-Slovenije je da se od malih tp-link routera naprave senzorske stanice za sve tipove podataka, pa tako i za meteo podatke [3] ali i za razne druge tipove podataka. Evo kako to može lijepo izgledati [4].
 
Bila je i super usporedba 5 meteo stanica u emisiji Gadget Show u rangu 1000-2000 kn [5] ali emisiju mozes pogledati online jedino ako imas vpn do engleske ;( ali našao sam i komentare na tu emisiju na nekom forumu [6]
 
Po meni najbolje uzeti tp-link wr741 i na njega staviti DS18B20+ senzore kao što to radi ekipa iz Wlan-Slovenije [7] i za par sto kuna imaš online meteo stanicu. Mi smo sada naručili 10 senzore i krećemo u
izradu pločice za 1-wire sabirnicu, tako da ćemo uskoro u Osijeku imati 10-ak meteo wifi mesh stanica.
 
Pozivam i sve ostale da se uključe i u svoja mjesta postave mesh meteo nodove… sada dok je snijeg vani je pravo vrijeme, kada se okopni sve treba biti spremno samo za nakačiti na zidove i krovove ;)
 

Ako vas zanima više projekt Otvorena mreža možete pročitati članak [8]. Svi novi sudionici na ovome međunarodnome projektu su dobrodošli, ako ste u Slavoniji i Baranji samo se meni javite ili pokrenite ogranak ovog projekta i u svome mjestu ili kvartu ako je veći grad u pitanju. Za sva dodatna pitanja stojim vam na raspolaganju.
 

[1] http://www.istramet.com/
[2] http://mojtv.hr/video/v/aTfOKdSGduE/istramet-u-dnevniku-nove-tv.aspx
[3] http://dev.wlan-si.net/wiki/Modifications/SimpleThermometer
[4] https://nodes.wlan-si.net/node/kozolectest/
[5] http://fwd.channel5.com/gadget-show/videos/jon-test/jon-test-weather-stations
[6] http://www.hardytropicals.co.uk/forum/viewtopic.php?f=1&t=8456
[7] http://dev.wlan-si.net/wiki/Modifications/SimpleThermometer
[8] http://kernelreloaded.blog385.com/index.php/archives/projekt-otvorena-mreza/

Filed under croatian, diy, gadgets, linux · No Comments »

January 13, 2012 @ 11:56

WordPress post subject name in title (Rhianna theme)

 
Kernelreloaded uses Rihanna WordPress theme by Kineda, and I really love it.
 
One thing I still didn’t change from default is the was it displays posts. Currently no matter which page you are on title doesn’t change, and if you bookmark it you will get only blog name not the post name in the title :(
 
I checked the source of the theme and found the culprit in header.php and the default code is:
title ?php bloginfo('name'); ? /title
 
Because of some protections you can’t see full code on my blog, but check out examples at wordpress wp_title blog and how to change it.
 

Filed under english, tips&tricks · No Comments »

December 20, 2011 @ 10:03

Android Samsung Galaxy S2 vs Apple Iphone 4S TCO

 
I have 2 year old smart phone (iPhone 3GS) and mine 2 year contract is almost over, so I’, looking at my options for upgrade for next two years.
 
I really like playing with gadgets but I’m also cost concious, so I’m looking at TCO (total cost of ownership) of my next device.
 
I’m not willing to pay over 200 kn (36$ or 27€) per month for my contract, so these are my options:
 
Samsung Galaxy S2:
T-Mobile with 150 kn contract – handset 2298 kn + 2 year TCO = 5898 kn
VIP with 200 kn contract – handset 1999 kn + 2 year TCO = 6799 kn
 
Apple Iphone 4S 16GB:
T-Mobile with 150 kn contract – handset 1998 kn + 2 year TCO = 5598 kn
VIP with 200 kn contract – handset 1699 kn + 2 year TCO = 6499 kn
 
Maybe our legislative should make it mandatory for everybody to show TCO prices because that is what we pay for.
 

Filed under english, gadgets, općenito · No Comments »

October 5, 2011 @ 17:16

My favorite Firefox Extensions

Filed under općenito, tips&tricks · 12 Comments »

October 5, 2011 @ 9:17

Ugasite govornu poštu

 
Mobilni operateri zarađuju korištenjem usluge govorne pošte koju namjerno ili “slučajno” uključuju svojim korisnicima.
 
Evo kako isključiti uslugu govorne pošte kod Hrvatskih mobilnih operatera:
* T-Mobile: #70# + tipka za poziv
* VIP: ##002# + tipka za poziv
* Tele2: *134*0# i tipka za poziv
* Tomato: ##002# i tipka za poziv
 
Pomognite svojim pritateljima i rodbini da uštede novac i svima im isključite uslugu govorne pošte.
 

Filed under croatian, gadgets, općenito · 3 Comments »

August 29, 2011 @ 8:22

Projekt Otvorena mreža

 
Projekt Otvorena mreža Osijeka podržava udruga Osijek Wireless, no projekt ne pripada isključivo udruzi niti ga udruga želi zadržati samo za sebe. Ovo je projekt svih građana i tko god želi može se uključiti u njega. Ishod i uspjeh ovog projekta ovisi o cijeloj zajednici.
 
Jedan je od najvažnijih ciljeva napraviti platformu koja će biti otvorena za razne druge aktivnosti – od pristupa internetu za turiste i građane i omogućavanja besplatnih telefonskih razgovora unutar mreže do postavljanja senzoričkih platformi za mjerenje bilo koje vrste podataka (temperatura, buka, padaline, i dr.), postavljanje web kamera i sl.
 
Jednako važan cilj ovog projekta jest i edukacija mladih kroz besplatne radionice, a u području novih tehnologija poput rada računalnih žičanih i bežičnih mreža, Linux operativnog sustava, mikroelektronike, programiranja i dr. kroz besplatne edukacije, koje će započeti u rujnu ove godine. Svi koji žele moći će se upoznati s osnovama rada bežičnih mreža i Linux OS-a te kako projekt Otvorena mreža Osijeka radi s tehničke strane.
 
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Filed under croatian, linux, općenito, windsurf · 4 Comments »

August 25, 2011 @ 8:14

OpenWRT installation from Tomato

 
I have an older Linksys WRT54GL v1.1 with Tomato firmware. Although I’m a hardcore Linux geek I never used OpenWRT, yeah, I know – shame on me ;)
 
OpenWRT wiki has installation instructions that explain how users should first install 2.4 linux kernel based image, set some nvram options, and then install or update to latest 2.6 based firmware image, but WIKI has no links how to do an update.
 
Read rest of story…

Filed under diy, gadgets, linux, tips&tricks, wireless · 5 Comments »

July 4, 2011 @ 21:27

Fedora in Public Libraries


 
Our local Linux Users Group in my home town of Osijek has started workshops called knowledge exchange in partnership with our public library. So first step was to install Fusion Linux Fedora Remix on their PCs.
 
Are there other examples with Fedora being rolled out in public libraries or in some other public institutions? I would be really interested with their experiences.
 
In my example there are 6 PCs that are used by any member of library, usually those are primary and high school kids. They come here and most of their activities are watching youtube, logging onto facebook and playing flash games.
 
Their primary OS is Windows XP with Windows SteadyState enabled. I found out that they decided to use Windows SteadyState because they had problem monitoring kids and they would leave p2p apps running and downloading music and video files and come back a day later with hard drives to save them onto. Obviously that is not what they want kids to do so by enabling Windows SteadyState any files downloaded are erased by reboot. This policy probably also removes most virus issues, both because kids don’t plug any usb devices and because any changes are erased.
 
First issue I came across was that Anaconda installed and GParted wouldn’t resize single windows ntfs partition because there were some errors on hard drive. I tried logging into Administrator account and running chkdsk /f but that didn’t help, even with option that Windows SteadyState merges changes. I didn’t want to disable Windows SteadyState so I reverted to boooting of Windows live CD and running chkdsk /f from repair console. That fixed the issues on all machines.
 
I didn’t have good experience with Anaconda ntfs resize so I used GParted to resize ntfs partitions. GParted worked perfectly on all machines without issues.
 
After installing Fusion Linux I did these post install tweaks:
* Change grub entry “Windows XP” from “other”
* Change grub entry to Fusion Linux 14 from Fusion Linux 14.1 (2.6.35.13-92.fc14.i686)
* Put 10 seconds wait in grub menu
* Enable automatic login
* Disble screensave password lock
* Enable automatic updates
* Put Firefox, Chromium and Teeworlds icons on desktop
 
What would be best way to enable “Windows SteadyState” equivalent in Fedora? Brute force way would be a simple script that deletes all files in user home folder. Are there some more subtle ways? And how to make some changes permanent while making all other changes transient? Using unionfs seams like a bit of a overkill… Any suggestions are welcome.
 

Filed under english, linux · 7 Comments »

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