Sending Arduino to Processing

Processing Electronics (Arduino, etc.)
2

Hello,

It works here when I connect to the correct serial port.

Try adding this to setup() to see which COM ports are available:
https://processing.org/reference/libraries/serial/Serial_list_.html

Another resource:
https://itp.nyu.edu/physcomp/lessons/serial-communication/interpreting-serial-data/

:slight_smile:

Arduino:

void setup() 
  {
  //Int serial port for data
  Serial.begin(9600);
  }

void loop() 
  {
  // capture data in arduino
  int variable1 = int(random(100));
  Serial.println(variable1);
  delay(100);
  }

Processing:

import processing.serial.*;

Serial mySerial;

String myString = null;
int ml = 10;
float myVal;

void setup() 
  {
  size(200, 400);
  
  // List all the available serial ports
  printArray(Serial.list());
  
  String myPort = Serial.list() [0];
  mySerial = new Serial(this, myPort, 9600);
  }

void draw() 
  {
  while (mySerial.available() > 0) 
    {
    myString = mySerial.readStringUntil(ml); //striping data

    if (myString != null) 
      {
      background(0);
      myVal = float(myString);
      println(myVal);
      }
    }
  }

This needs work:

//    rect(width/2, height =(myVal/2), 100, myVal);

I will leave that with you.

image

1 Like