Arduino -> Processing Serial problems

Using Arduino Interfacing w/ Software on the Computer
#1

Ok, i want to send x,y,z values (in one line) from my arduino to processing over serial then use split() on the string value and then display it ect…

example:
arduino sends this :

23.77,45.00,34.54

Processing receives it like this:

23.

77,
45.00
,3
4.54

Problem is this doesn’t work, processing wont accept the one line value therefore i cant split or use the values .

is there any other sketch that works or another solution?

#2

Could you post your current arduino code ?

#3

I dont think it the arduino code is wrong , (on the arduino serial window its being displayed correctly) Its the processing code that the string comes incomplete.

processing code import processing.serial.*;

int lf = 10;    // Linefeed in ASCII
String myString = null;
Serial myPort;  // Serial port you are using
String num1;
int ok1=1;
int ok2=2;
int x=0;
void setup() {
  myPort = new Serial(this, Serial.list()[1], 9600);
  myPort.clear();

}

void draw() {
  while (myPort.available() > 0) {
    myString = myPort.readStringUntil(lf);
    if (myString != null) {
    //print(myString);  // Prints String
        num1=myString;

    println(num1);

    }
  
  myPort.clear();
  if (x==0){
    myPort.write("1");
   x=1;
  }
 } 
}
#4

Post your arduino code as well and I'll have a play with it.

#5

I noticed "//print(myString); // Prints String" in your code. What do you mean by this ?

println uses "," (comma) as a seperator and will inset a line break. You probable want "print" instead, but I'm not sure what the statement above means.

#6

Actually i fix it D:

The problem was "myPort.clear();" that what was breaking my prints

#7

Your processing sketch should have a myPort.bufferUntil() call, to define when a packet has been received. If the Arduino is sending a value, a comma, a value, a comma, a value, and a carriage return/line feed, processing should buffer data until the carriage return is received.

The Processing sketch should also have a serialEvent() method that gets called when the buffer until character arrives. The serialEvent() method should contain the code to parse the input.

#8