I'm using marlin and RAMPS and would like the arduino to send a command to Pronterface so that Pronterface can launch something in the command line (I'm using Mac OSX). I can figure out how to send serial commands to pronterface, but I'm not sure how I should edit pronterface code to make it send commands to the command line.
If anyone has any idea, please chime in! An alternative would be to have the arduino launch the command lines directly instead of going through pronterface, but I'm not sure if that is possible.
