win 7 processing 编程环境搭建

1、下载processing安装包：

2、下载usb驱动：

3、安装processing;

4、安装驱动：

5、在processing中编写代码：

// Visualizing the data from EMFIT device in a waveform
// Processing reads the data from the USB port and connects all the data points with lines, creating a waveform
// Ideally, only the similar data points of for example heart rate should be connected for a clear understanding of the data.
// Cody written by Ruben van Dijk, student industrial design at University of Technology Eindhoven

import processing.serial.*;

Serial myPort;  // The serial port

// VARIABLES____________________________________

int[] y;

void setup() {
  size(1000, 255);
  y = new int[width];

  printArray(Serial.list());
  // Open the port you are using at the rate you want:
  myPort = new Serial(this, Serial.list()[0], 9600);
}

void draw() {
  while (myPort.available () > 0) {
    int inByte = myPort.read();
    println(inByte);

    background(204);
    // Read the array from the end to the
    // beginning to avoid overwriting the data
    for (int i = y.length-1; i > 0; i--) {
      y[i] = y[i-1];
    }
    // Add new values to the beginning
    y[0] = inByte;
    // Display each pair of values as a line
      for (int i = 1; i < y.length; i++) {
      line(i, y[i], i-1, y[i-1]);

    }
  }
}

6、连接usb，运行代码即可看到效果。