Hi guys, I've been experimenting with Nextion display and Marlin for some time now, and have already tested the @apballard and @MagoKimbra versions and both works just fine. However since I learned about the Protocol Reparse mode (recmode=1) in Nextion, I belive it is possible to implement a display that communicate only via gcode trough serial port. Protocol Reparse mode lets you read and procceby DotBreno - Firmware - Marlin