Specialist software communication equipment through RS232 / parallel port / serial port.

applications for creation: POS / GPS tracker / queue / thermal printers / bar code reader.

I like to develop in PHP / .Net / Zend Framework 2 / Symfony 1.4

ORM: Doctrine 1.2

client-side: GTK or AngularJS

core: C/C++ (multithreading / mutex / semaphore)

linux: ubuntu