hello. hi. i'm newbie in processing. i hope somebody can tell me. how the above program function.i'm in same condition with secondsky. currently i'm using arduino. using a sensor. to display a reading. then save the reading in csv format inside SD memory card. that's the part of arduino software. then, i used processing. to view the graph of the reading. save it in pdf form. the final part. to combine it together. the current issue when i run graph on processing, i cannot run the serial monitor of the arduino. vice versa. when i run serial monitor of arduino, i cannot run processing graph. i already have a look program above. but, i can't understand it very well. i realy hope somebody can tell me how the above program function. with all, regards. thank you.