Hi,
let me help you program this. I have created similar project before, when I have to interact with weigh devices, then display it to seven segment.
This is fairly simple project that could be done in 1-2 days. I have use Arduino since 2013 and has done lot of project with it.
Let's discuss the detail of this project over messenger. I'm ready to work with you today.
Best Regards,,
Rijal