I am very new to 3D printing and I am trying to adjust my firmware. I use the Arduino IDE 1.8.12.

I downloaded the firmware from GitHub that suits my printer, but every time that I try to open the marlin.ino file within, it opens in the Arduino with only the blue "marlin" tab. It doesn't load the other tabs such as Configuration.h and Configuration_adv.h.

I have watched a few YouTube videos, and in all of them, these tabs seem to open automatically.

Thank you very much for any help, I've been struggling to figure this out.

  • 1
    $\begingroup$ Did you download Marlin 2.0.x and opened it an older Arduino IDE? Older versions of Arduino IDE do not work with directory structure layout of Marlin 2.0.x. $\endgroup$
    – 0scar
    Mar 23 '20 at 23:10
  • $\begingroup$ Thanks for the reply, I have arduino 1.8.12 and Im trying to open Marlin 2.0.x $\endgroup$
    – mcdon482
    Mar 23 '20 at 23:13
  • 1
    $\begingroup$ You can also use VSCode and PlatformIO plug-in $\endgroup$
    – 0scar
    Mar 23 '20 at 23:21
  • $\begingroup$ Does this help to answer your question? Updating Marlin Firmware - Step by Step Guide $\endgroup$
    – Trish
    Mar 24 '20 at 15:41
  • $\begingroup$ Can you copy the files to a "real" PC and open the .h files in a text editor? $\endgroup$ Mar 24 '20 at 17:04

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