Processing and Arduino: how to change color according to the status of a digital input?

[samiam85]

Dear All,

I am new in the “Processing world”. I have connected Processing to Arduino.
What I can do, it is to push a button and activate some Digital Outputs in Arduino.

Now, what I wanna do is: according to the status of an output, how I can “color” a certain square in processing? Let’s say, like a led?

Thanks a lot,
Samuele

[glv]

Hello @samiam85,

There is a tutorial on Electronics here suitable for a beginner:

Welcome to Processing!

Explore away!

:)

[RichardDL]

As well as that, see (Processing) File, Examples, Libraries, Serial. Try all 5 examples starting with SimpleRead and SimpleWrite.

[glv]

Hello,

If you are exploring the examples that come with the Processing IDE take a look at this topic:

Processing to Arduino Serial Library Example

I modified the existing “SimpleWrite” example to: save and check for the state of mouseOverRect() print state to console only writes serial data once a delay() to wait for Arduino to reset once connected to it; in my case, it is an Arduino Mega 2560 R3. I kept the spirit of the original example intact and left it as a “Simple Write” program. My edit of “SimpleWrite” example so it only sends data once: /** * Simple Write. * * Check if the mouse is over a rectangle and writes the status …

:)

[samiam85]

@glv

a tutorial on E

Dear All,

thanks a lot for your replies. I’ll go trhough the tutorials, then and I’ll be back to you, if necessary.

Samuele.