hello, i am freelancer here, i can deal with you,
i have more than 3 years experience in prototyping works, i read your conditions carefully, after that i see myself able to deal with you...
i can offered you all information you need, and signing your ODA but that ODA must be specific for this project,
i mead system that connect with android app via Bluetooth technology, we can make graphs, carves anything you want, i ll be free to answer your qustion here , email , skype, or whatspp,