I want to make a gui project with QT5 on raspberry pi and I want to read data from can_bus via spi. I did all configuration, read and write data with no error. I recieve data with interrupt pin. When this pin is ‘0 V’ it means is there a recieved message to collect. I checked this pin in infiniti loop. Now i want to move that code to gui. How can i implement this tactic to gui? I am newbie on qt5.