Hello, 高生旺, le jeu. 02 janv. 2025 10:23:43 +0800, a ecrit: > > > > b = brlapi.Connection() > > > > b.readKey() > brlapi.OperationError: Illegal instruction See Sebastien's answer: "You have to enterTtyMode() first. Only then you can read keys and write to the display." It's also what the pydoc3 brlapi example does. Samuel