HI!
I tried all abovementioned tricks on my Omega2+ but no luck. The thing that helped was disabling "Hidden SSID" option in my router. It is sometimes called "Broadcast SSID" too (but with opposite meaning). Looks like current setup does not work with 'hidden' SSIDs.

@Sergey-Melekhin looks like there is no esay way to run OmegaExpansion in py3k
People why do you even start writing new python2.7 libs in 2016? Only time since 2006 when I used py2 for a new project was when I needed scrapy, which was too big to port easily.

I did a simple hardware twitter client using Omega2+ Arduino Dock2 and LCD Keypad Shield.
I use i2c to send tweets to arduino sketch. And sometimes python just segfaults.
First time it happened on "How dangerous is Putin?" tweet. https://www.instagram.com/p/BP6Z0SVhoyC
But this is not a RussianHackers(tm) work, I checked!

I use https://wiki.onion.io/Documentation/Libraries/I2C-Python-Module

And i have latest versions of everything

Ω-ware: 0.1.9 b149
python - 2.7.13-3
pyOmegaExpansion - 0.4-1

That's what I see in logs:

Tue Jan 31 14:38:47 2017 kern.info kernel: [10265.251937] 
Tue Jan 31 14:38:47 2017 kern.info kernel: [10265.251937] do_page_fault(): sending SIGSEGV to python for invalid write access to 00000000
Tue Jan 31 14:38:47 2017 kern.info kernel: [10265.260432] epc = 77a44864 in libc.so[77a1c000+92000]
Tue Jan 31 14:38:47 2017 kern.info kernel: [10265.265605] ra  = 7727ac19 in libonioni2c.so[7727a000+11000]
Tue Jan 31 14:38:47 2017 kern.info kernel: [10265.271405] 

Here is the code: https://github.com/C-Pro/onion-tweet-pager

P.S.: I have just found out that I can actually use Py3 with OmegaExpansion module, so I am going to try if it works better, but if the problem is in c moule it won't help

@Luciano-S. hidden ssid does not make my network a tiniest bit more secure than WPA2PSK AES does, so I got rid of it with no regret.

HI!
I tried all abovementioned tricks on my Omega2+ but no luck. The thing that helped was disabling "Hidden SSID" option in my router. It is sometimes called "Broadcast SSID" too (but with opposite meaning). Looks like current setup does not work with 'hidden' SSIDs.