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I'm familiar with 3D printing, and the G-code concept. I'm also comfortable with programming.

Can anyone give me the G-code (or probably the M-code, actually) to read the bed temperature?

Is there an equivalent of M105 (Get Extruder Temperature)?

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M105 should give you the bed temperature.

For future reference you can find a general list of G/M codes here - RepRap Wiki - G-code.

Most firmware files include a list, Marlin has it in Marlin_main. I have no idea how often the list is updated but they don't change often.

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  • $\begingroup$ M105 is the extruder temperature. I can''t find a way to get the bed temperature, though there is a code to wait until the bed has reached the target temperature. $\endgroup$ – NomadMaker Mar 1 '18 at 14:27
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    $\begingroup$ @NomadMaker M105 should report the temperature for everything. $\endgroup$ – tjb1 Mar 1 '18 at 17:08
  • $\begingroup$ @NomadMaker please look into marlinfw.org/docs/gcode/M105.html $\endgroup$ – 0scar Sep 7 '18 at 13:27
  • $\begingroup$ Your Marlin_main link had died, so I changed it $\endgroup$ – Greenonline Sep 11 '18 at 14:20

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