When I try to upload my code to 3D pinrter (Renkforce RF100 XL), I met the fatal problem
avrdude: ser_open(): can’t open device “\\.\COM5”: Access is denied.
The cause of this problem is very simple that I have already open a cura software which is connected to the 3D printer. Really stupid mistake.
Last Updated on 2026-01-06 by Rocket Mao