Hi all, i was looking around the examples in processing and arduino, but couldn't find what i was looking for. (at least i don't think i did). I'm looking for an example for processing that will let me take serial data from an arduino uno, say thermistor temps, and chart them into a strip chart/line graph in real time, say a reading every 5 sec or adjustable time base, plot that point and connect a line between the new data point and the last data point. i have very little experience with processing, other than some arduino examples i've used. and help or examples are greatly appreciated!
There are a number of examples of reading serial data that are supplied with the Processing software. There is an example in the Topics + Drawing section, ContinuousLines, that plays connect the dots with mouse positions. Replace the mouse's y location data with the serial data and the mouse's x location data with an incrementing value.
When the x value reaches the right edge of the screen, you could redraw the screen and start over, or you could add all the y values to a circular array, and redraw the whole screen each time a data point is added.