Problem parsing arduino data in processing

peterlm844

Having this Arduino code sends out a string with 3 random numbers. I want to use the variables in Processing, but I cannot get it to work.

void loop() {

a=random(5); b=random(8); c=random(9);

Serial.print(a); Serial.print(" "); Serial.print(b); Serial.print(" "); Serial.println(c); delay(750); } The terminal on my PC sees the datasteam and this part works fine. (portsetup is fine), so this part looks to be fine..

My Processing code comes here. import processing.serial.*;

int a, b, r, g, c; // laver a og b som globbae vaiabler Serial myPort; // The serial port

void setup() { size(256, 256); // Stage size String portName = Serial.list()[0]; myPort = new Serial(this, portName, 9600); }

void draw() { }

void serialEvent(Serial myPort) { String numbers = myPort.readString(); int[] nums = int(split(numbers, ' ')); a=int(nums[0]); b=int(nums[1]); c=int(nums[2]);

println(a); }

I would expect thee 3 integers in my stream to get into a, b and c. But i cannot get it to work. Any sugestions? I have used the last 3 hours fiddeling with it but with no luck

Best

Peter

camperos

    void loop() {

    a=random(5); b=random(8); c=random(9);

    Serial.print(a); Serial.print(" "); Serial.print(b); Serial.print(" "); Serial.println(c); delay(750); } 

      import processing.serial.*;

    int a, b, r, g, c; // laver a og b som globbae vaiabler Serial myPort; // The serial port

    void setup() { size(256, 256); // Stage size String portName = Serial.list()[0]; myPort = new Serial(this, portName, 9600); }

    void draw() { }

    void serialEvent(Serial myPort) { String numbers = myPort.readString(); int[] nums = int(split(numbers, ' ')); a=int(nums[0]); b=int(nums[1]); c=int(nums[2]);

    println(a); }

try this:

 void serialEvent(Serial myPort) { 
 String numbers = myPort.readStringUntil('\n'); 
  numbers = trim(numbers);
 int[] nums = int(split(numbers," "));
 a=int(nums[0]);
 b=int(nums[1]);
 c=int(nums[2]);
 println(a); 
 }