SERIAL PROBLEM

[aelfwine]

Hello @all,
I’m working on new installation and I need to receive the weight value from a digital balance.
I’ve tried with the serial monitor of arduino and it`s work perfectly but when I try to use with V4 anything happen.

With the serial monitor I simply send the message READ with CR and LF and I receive the string value.

Any idea to use it with V4.

Thanks

Aelf

[aelfwine]

I’ve write this software in processing in order to make and OSC bridge from the serial events:

import processing.serial.;
import oscP5.;
import netP5.*;

Serial myPort; // Create object from Serial class
int lf = 10; // Linefeed in ASCII
int val; // Data received from the serial port
char[] arrays;
String inString; // Input string from serial port
String myString = null;

OscP5 oscP5;
NetAddress myRemoteLocation;

void setup()
{
frameRate(10);
size(10, 10);
// I know that the first port in the serial list on my mac
// is always my FTDI adaptor, so I open Serial.list()[0].
// On Windows machines, this generally opens COM1.
// Open whatever port is the one you’re using.
String portName = Serial.list()[0];
myPort = new Serial(this, portName, 9600);
//myPort.buffer(18);
oscP5 = new OscP5(this, 12000);
myRemoteLocation = new NetAddress(“127.0.0.1”, 9999);
}

void draw() {

myPort.write(82);
myPort.write(69);
myPort.write(65);
myPort.write(68);
myPort.write(13);

while (myPort.available() > 0) {
myString = myPort.readStringUntil(lf);
if (myString != null) {
OscMessage myMessage = new OscMessage("/test");
myMessage.add(myString); /* add an int to the osc message */
oscP5.send(myMessage, myRemoteLocation);
println(myString);
}
}
}

[tonfilm]

the most easy way to use arduino with vvvv is firmata, no need for low level byte juggling:

Firmata protocol

[joreg]

better even: have a look at:

girlpower\IO\Arduino\Arduino_without_Firmata.v4p

and read the comments carefully. it should explain all you need.

[aelfwine]

Hello Joreg,
I’m using an industrial balance directly connect to the pc via USB port.

[joreg]

that is fine. and the example i mentioned answers your initial question.