Hi, I have over 8 years experience in C, embedded systems and embedded Linux. I also have experience with Linux software, Linux device driver, QT5 framework and have done many projects with Raspberry. The last project I did it was used QT5 with a 5 inch touchscreen: https://www.freelancer.com/projects/C-Programming/Raspbian-RFID-Fingerprint-Display-9197030/