@jonasde For verification, you can use a different and dump terminal software like Putty (Windows), screen (mac, linux) or picocom (Linux). Just make sure that any kind of handshake is disabled. For fil etranfer you can use an ftp client like filezilla or fireftp.

@seb Same reaction here... I think however there are cases when Ctrl-C will not interrupt the currently running code right away, but have an effect only once the current call is finished or something, maybe that's related? We don't quite know what code was running... Or maybe... @pierrot10, had you actually deleted the console in Atom (clicked on the bottom part of the window) before hitting Ctrl-C?