89 lines
1.6 KiB
Plaintext
89 lines
1.6 KiB
Plaintext
import processing.serial.*;
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import java.io.FileWriter;
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import java.io.*;
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import java.util.*;
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Serial myPort;
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String val = "0.0";
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int speeds_show=5;
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float[] speeds=new float[speeds_show];
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int speeds_index=0; //points to next array index
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float speedfloat=0;
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Date d=new Date();
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PrintWriter pw;
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int unitdisplay=0;
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int unitdisplay_count=2; //how much different units available
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void setup() {
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size(1500, 1000);
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frameRate(30);
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//String portName = "COM3";
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String portName = "/dev/ttyUSB0";
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myPort = new Serial(this, portName, 115200);
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pw=createWriter("speeds.txt");
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background(0);
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}
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// speed wird sein "20.08" oder
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void draw() {
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if ( myPort.available() > 0) {
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val = myPort.readString();
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print("val = " + val);
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val = val.substring(0,val.length()-1);
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speedfloat=float(val);
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speeds[speeds_index]=speedfloat;
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speeds_index++;
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speeds_index%=speeds_show;
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println(d.getTime()+";"+speedfloat);
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pw.println(d.getTime()+";"+speedfloat);
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pw.flush();
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unitdisplay=int(random(0,unitdisplay_count));
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unitdisplay=1;
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println("unitdisplay: "+unitdisplay);
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}
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background(0);
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fill(255);
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textSize(150);
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switch(unitdisplay){
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case 0:
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text(nf(speedfloat,1,2) + " km/h" , 100, 200);
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break;
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case 1:
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text(nf(speedfloat*0.000809848,1,6) + " Mach" , 100, 200);
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break;
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}
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textSize(80);
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//println();
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int ipos=1;
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for (int i=speeds_show;i>0;i--){
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ipos++;
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text( nf(speeds[(speeds_show+speeds_index-1+i)%speeds_show], 1,2) , 100, 250+(ipos)*80);
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//print(speeds[i]);
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//print(",");
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}
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} |