Hello; Your project description is very generic then I would like to know more details about your project may be it could be implemented at a more lower price.
As you could see in my profile I am electronic engineer and one of my services are related with ANSI C/C++, microcontrollers, single board computers and so on...
Feel free to contact me and open your ideas and your project may be I could help you to success your goals.
Best regards.