<p>Your question <strong>may</strong> be useful to people interested in 3d printing (the purpose of this SE Site) so, even though you're not asking a 3d printing question per se, I think this answer will be helpful...</p>

<p><strong>GRBL:</strong></p>

<p>GRBL is a well known and mature g-code interpreter that will run on an Arduino Uno and is free and open source.  <a href="https://github.com/grbl/grbl/wiki" rel="nofollow">Check it out here.</a></p>

<p>I hope this helps!  :-)</p>

CC BY-SA 3.0
2016-10-19T02:16:49.217Z
2016-10-21T04:30:27.043Z
2016-10-21T04:30:27.043Z
Chris Thompson
<p>I'd like to build a plotter to work without a PC (power supply by battery).
Plotter will write only several numbers on a card (really short G-code).</p>

<p>Do you know any firmware, which can be easily modified for this reason?
Or do you know G-code library which could be easily implemented into my stepper controller in Arduino?</p>

<p>My plan is to use Repetier (printing from SD), but I prefer to print without SD.
Repetier is also too big, there are a lot of functions that I don't need. </p>

CC BY-SA 4.0
2019-05-05T20:13:44.047Z
Have you found & fixed the problem? If any of the answers helped you to get an answer to your question or come to your own conclusions then please do vote & accept an answer (using the tick button next to it). This helps us reduce the [unanswered questions list](https://3dprinting.stackexchange.com/unanswered) & stops the question from being bumped once in a while. If you found another answer (than those already posted), please add that answer (& accept after 48 hours) to share your experience with the community. If you have not been able to address the problem please update your question.
Greenonline
<reprap><repetier>
G-code firmware for handheld plotter (Arduino)
kalu1
# G-code firmware for handheld plotter (Arduino)

(Asked by: username_0 on 2016-09-10)

I'd like to build a plotter to work without a PC (power supply by battery).
Plotter will write only several numbers on a card (really short G-code).

Do you know any firmware, which can be easily modified for this reason?
Or do you know G-code library which could be easily implemented into my stepper controller in Arduino?

My plan is to use Repetier (printing from SD), but I prefer to print without SD.
Repetier is also too big, there are a lot of functions that I don't need.

**Tags:** reprap, repetier
> **Comments:**
> **username_1**: Have you found & fixed the problem? If any of the answers helped you to get an answer to your question or come to your own conclusions then please do vote & accept an answer (using the tick button next to it). This helps us reduce the [unanswered questions list](https://3dprinting.stackexchange.com/unanswered) & stops the question from being bumped once in a while. If you found another answer (than those already posted), please add that answer (& accept after 48 hours) to share your experience with the community. If you have not been able to address the problem please update your question.  

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## 1 answers

### Answer by username_2 on 2016-10-19. Score: 4

Your question **may** be useful to people interested in 3d printing (the purpose of this SE Site) so, even though you're not asking a 3d printing question per se, I think this answer will be helpful...

**GRBL:**

GRBL is a well known and mature g-code interpreter that will run on an Arduino Uno and is free and open source. [Check it out here.](https://github.com/grbl/grbl/wiki)

I hope this helps! :-)


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