vvvv what?

Quoted from their website: “vvvv is a toolkit for real time video synthesis. It is designed to facilitate the handling of large media environments with physical interfaces, real-time motion graphics, audio and video that can interact with many users simultaneously.”
In the website also some tutorials on how to interface Arduino with the program.
Read more here: […]

Another supplier of sensors.

Probably used for medical applications, but here is the link: Shopembla

A nice demonstration of sound propagation

An interactive java applet depicting the propagation of sound and its response to reflecting materials.
See it here: Link.

Problem solved (How to control a PWM Arduino output with a Processing Slider)

Thanks to Carlo, a very good friend of mine, I finally made it work. Using the slider that I coded (you can find it here)
I managed to control one of the PWM Arduino output, using a slider coded with Processing. With this code, for example, you could control the intensity of an LED or for […]

I am struggling on how to get an analog output from a serial message

I have spent all the afternoon trying but no luck at all…
Here is the code that I have written:
int test;
void setup()
{
Serial.begin(9600);
}
void loop(){
while (serialAvailable()){
test = serialRead(); //read Serial
serialWrite(test);
analogWrite(9,test);
}
}
For some reason the analogWrite function does not want to read the test variable value which is the one that I send through serial […]

My Processing slider

To do a preliminary check on how to collect data from the Internet and control the Arduino board, I will first build a Processing slider that will simulate the differencies on the values read from the Internet. Once everything will work, instead of the Slider I will use real data.
So here I will explain how […]

Computers can’t talk analog, so somebody invented PWM (Pulse width modulation)

Computers are not able to output analog signal, or at least they can’t while talking through a serial port and a serial communication. At the same time they cannot read analog signals too. This is the reason why modems exist and what they do is to transform analog signal to digital and viceversa.
How do […]

A supplier of piezoelectric pressure sensors

Unfortunately it is in America but here is the link: XactMan.
There is one which is particularly interesting and is the one on the picture below:

Image from XactiMan
It is quite cheap and it will probably be good for Arduino projects.

Very quick, the last post for today

A very interesting website, showing all, or almost all website and online applications that offer a developer API.
Here is the link: ProgrammableWeb. It would be nice to interface any of these with processing.

So finally i undestood why Arduino has its own software which is different from Processing.

With the Arduino platform, all you do is to write code that will be loaded into the Arduino board.
You tell to the board how to react to signals received.
So what kind of signals can the Arduino board receive?
Even if the Arduino board has a USB interface, to make the life of developers easy, the communications […]