PURE DATA forum~

i like. always was wondering how to use the comport obj.

Great, I'm in the process of deciding whether to use Pd or Processing for a small Arduino project - this tutorial will come in handy, thanks ;)

nf-interactive wrote:

I used processing also, it's as easy as PD to connect but the features are very difficult. the graphical interface from PD is very nice!

Thanks for the heads-up - I'm already familiar with PD, and I hate Java, so I'm probably following the same route ;)

Noob question here, does the data flows both way ? like can I send data to arduino via the comport object to control a led ?

Hi killkrt:

   Maybe you can tell arduino "not to listen" while you send the data. I don't know if that data would stay in a buffer waiting to be read, anyway. I do that to avoid loops when I refresh two-way controls (the ones that you may operate on both on screen and on midi controllers).

         Sumidero

killkrt, want to post you patch and sketch? Maybe you should call a while function like this: while (Serial.available > 0) {} and you put what ever you want to be done with data sent from Pd inside the curly braces...
Maybe you've already done it, just a thought I got.

pblanchette, I've attached a Pd patch that turns an LED on and off. There's a [pddplink] with the URL of the Arduino sketch and circuit needed for this.
Cheers