is it possible to control for example leds with arduino through webcam input if that webcam input runs through processing first?
i read here that it's not possible to connect a webcam directly to arduino as input, but what about connecting it to processing and then that to arduino?
how would that work?
thanks for any ideas..
First off yes, it is possible -most things are.
Think of this project involving two steps, first you need to interpret the webcam input. This is most likely going to need a PC, or a very well designed FPGA. Let's assume you pick the first, it's easier and uses less solder. So, now you need to either use processing, or any other some other software, maybe something like this http://webcamxtra.sourceforge.net/. The second step will be to use serial communication with the Arduino to send it value from processing or from whatever you are using to process the data.
Hope this helps, what exactly are you trying to do?