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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!
 
There is an app called WiFi Ad Hoc enabler that should work on most Android devices.
 
If this app works for you, please give it a good review or notify developer of any issues you encounter, but consider that not all Android devices are supported yet.
 
I would be very grateful if you would vote up my answer on Stackexchange.
 
[1] https://code.google.com/p/android/issues/detail?id=82
[2] http://forum.xda-developers.com/showthread.php?t=754961
[3] http://stackoverflow.com/questions/1932150/can-android-do-peer-to-peer-ad-hoc-networking
[4] https://play.google.com/store/apps/details?id=nl.arendmedia.wifiadhocenabler
[5] http://www.arenddeboer.com/wifi-ad-hoc-enabler-for-android/
[6] http://stackoverflow.com/a/10108812/1031514

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

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 @ 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 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 @ 17:30

Google caught cheating in Android@Home demo

 
You would expect that Google will use Android@Home protocol in it’s Android@Home demo [1], right?
 
Well it looks like Google got caught cheating. It looks like Google has actually used equipment from Synapse Wireless [3] and their protocol called Snap [4], and not their own, in-house developed Android@Home protocol.
 
Why did they do that? My guess is that they have limited developer resources who could code such a complicated protocol and wanted to do field survey how would press, other companies and general public react before they pored expensive development hours into questionably interesting product.
 
Nice try Google, but it is still cheating.
 
I would like to share comment from LinuxMCE [5] (most advanced smart home solution and it runs in Linux) forums by Darren:
 
“Interesting…. but Google would have to buy it and open it up a bit more for it to provide a real alternative.
From the Synapse website “Synapse Wireless Inc. provides patented hardware and software technology that helps tie together devices for remote monitoring and control.”
So in terms of an application layer free of patents – not at the moment. But perhaps Google will but the company, open source the stack and donate the patents to one of the open consortium’s.
We’re still in for a bit of waiting it seems.”
 
I really hope that either Google buys Synapse Wireless and releases it’s patents to one of open consortium’s or does so with their own (hopefully in development) Android@Home protocol.
 
[1] Android@Home demo at Google Keynote
[2] Google’s Android@Home – The plot thickens…
[3] Synapse Wireless
[4] Snap protocol
[5] LinuxMCE

Filed under english, gadgets, wireless · No Comments »

June 2, 2011 @ 18:36

iPhone IOS update issues

 
Every few months it’s same story again – I need to update my iPhone IOS firmware to new release because there are some cool new features, some new apps just won’t install without latest IOS or iPhone just became to crashy and unreliable that it needs a clean reinstall.
 
Sometimes update is done in mobile shop that some of my friends run and sometimes I do it myself. Because I do it so rarely I forget some of limitations set by Apple.
 

1. Upgrading IOS

- You can’t upgrade to any other but the latest IOS released by Apple.
- this bit me two times as I saw that latest IOS had some thing that I didn’t like to I tried to install to some other that latest version. This is just not possible.
 

2. Downgrading IOS

- You can downgrade only to IOS firmware that you had previously installed, jailbroke and saved shsh blobs from
 
So you can install only latest firmware released by Apple, your current one or previous ones that you have saved SHSH blobs from. Period.
 

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

May 27, 2011 @ 21:23

Arduino lolcat

Filed under gadgets, općenito · No Comments »

February 3, 2011 @ 22:48

Flipboard Android alternative


 
Flipboard is THE killer app for iPad, and lots of people are requesting Android version but developers have shown no interest in Android. If they have a small development team with few resources then it is understandable. Hopefully Fliboard guys get some money soon so that they can employ few Android developers.

 
Until that happens here are two best Flipboard alternatives on Android:
 
Read rest of story…

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October 17, 2010 @ 18:01

Best prosumer (non-SLR) digital camera of 2010/2011 ?

 
I’m looking for a new digital camera, I had Olympus C-8080 with 28-140mm F2.4-3.5 lens and 2/3″ (0.58 cm²) sensor as my primary camera for last 6 years, it had great lens and quite bigger sensor than current compact cameras. During diving on this year’s holiday underwater case gave in an screw for flash cable broke and let water in :(
 
So I’m looking for a new camera to replace old and trustworthy Olympus C-8080. I’m looking for a camera that would have bigger than average sensor; most cameras have sensor that is 0.3-0.4 cm2 and Olympus C-8080 had 0.6 cm2 sensor. I’m looking for great image quality camera but don’t want to have big bag only for camera so no SLR for me, and also prices of SLR lenses are too high for amateur photographers like me.
 
What would be my ideal camera? Camera with fixed fast F/2.0 lens, fast focus, 4/3 or APS-C size sensor, 28-200 mm zoom range and rain/waterproof case. Call it anyway you want, it could be called Olympus C-9090, Sony DSC-R2, Canon SXG10, Canon GX1 – I don’t care ;)
 
There are few different lens systems out there, one of more popular ones is Micro Four Thirds. Some manufactures have started releasing cameras with bigger APS-C size sensor.
 
Read rest of story…

Filed under english, gadgets · 5 Comments »

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