arduino uno and label printer

TomGeorge:
Hi,
I think you need to read the appendix in this manual.

https://cdn.cnetcontent.com/59/40/59400a3d-ea15-469a-90a5-a632fb89e191.pdf

Tom... :slight_smile:

should i setting DTR/XON/XOFF? DTR/XON/XOFF is default setting ? i want to connect without DTR/XON/XOFF