Until now I have been used arduino to connect the outside world to the pi and to the pd. I would like to start and experiment using the internal gpio pins on the PI with pure data (just buttons as input and leds as outputs).
Is there any tutorials one can direct me to? how complicated is that?
you can write codes such in the arduino ? or how does it working?
what object in pd are to receive the data? as it is not done via serial.