In this code you cand find an example with python and qt for read data from Serial Port, this applications was made for integrate a payment system with MDB.
If you want to see the behavior please visit this video: https://www.youtube.com/watch?v=TdZag7x4XCU&t=57s
If you want to make a project like this and you need some help please contact us: www.owldesarrollos.com