Christoph Niessen GPS-Modul mit u-blox 6M

import processing.serial.*;
Serial port;
String message = null;
String elements[] = null;
String Time=null;
String Latitude=null;
String Longitude=null;
String Fix=null;
int W=400;
int H=320;
int MAXSAT=80;
int distanceX = W/7;
int distanceBottom = H/15;
int graphWidth = W/20;
color graphColor = color(255,255,255);
class satellit{String id; int elevation; int azimuth; int snr;}
satellit[] sat=new satellit[MAXSAT];
int maxsat=0;
void setup() {
  for(int i=0;i<MAXSAT;i++)sat[i]=new satellit();
  // size
  size(W,H);
  noStroke();
  println(Serial.list());
  port = new Serial(this, Serial.list()[2], 9600);
}

void draw() {
  background(0);
  textAlign(CENTER);
  distanceX=((9*W)/10)/((maxsat>1)?maxsat-1:1);
  graphWidth=distanceX*3/4;
  fill(color(255,255,255));
  if(Time!=null){
    Time=Time.replaceAll("[.]..","");
    textSize(min(H,W)/12);
    if(Time.length()>=6)
    text(Time.substring(0,2)+":"+Time.substring(2,4)+":"+Time.substring(4)+" GMT", W/2, H/8);
  }
  if(Latitude!=null && Latitude.length()>4){
    textAlign(LEFT);textSize(min(H,W)/24);
    text(Latitude.substring(0,2)+"°"+Latitude.substring(2), W/20, H/4);
  }
  if(Fix!=null && Fix.length()>3 && Integer.parseInt(Fix.substring(0,1))>0){
    textAlign(CENTER);textSize(min(H,W)/24);
    if(Integer.parseInt(Fix.substring(0,1))==1)
    text("Fix ("+Integer.parseInt(Fix.substring(2),10)+" Sat)", W/2, H/4);
  } else
  {
    textAlign(CENTER);textSize(min(H,W)/24);text("no Fix",W/2,H/4);
  }
  if(Longitude!=null && Longitude.length()>5){
    textAlign(RIGHT);textSize(min(H,W)/24);
    text(Longitude.substring(0,3)+"°"+Longitude.substring(3), W*95/100, H/4);
  }
  textSize(min(H,W)/32);
  for(int i=0; i<maxsat; i++){
    if(sat[i].snr>50)fill(color(0,255,0));
    else if(sat[i].snr>30)fill(color(0,127,0));
    else if(sat[i].snr>20)fill(color(255,255,0));
    else if(sat[i].snr>10)fill(color(255,127,0));
    else if(sat[i].snr>=0)fill(color(255,0,0));
    else fill(graphColor);
    rect(i*distanceX+distanceX/2,height-distanceBottom,graphWidth,-sat[i].snr*3);
    textAlign(CENTER);
    text(sat[i].snr, i*distanceX+distanceX/2+0.5*graphWidth, height-distanceBottom-10-sat[i].snr*3);
    fill(color(255,255,255));
    if(sat[i].id!=null)
    text(sat[i].id,  i*distanceX+distanceX/2+0.5*graphWidth, height-distanceBottom+20);
  }
}

void serialEvent(Serial p){
  message = port.readStringUntil(10);
  if (message != null) {
    try {
      message=message.replaceAll(",,",",0,");
      message=message.replaceAll(",[*]",",0*");
      message=message.replaceAll("[*]..","");
      message=message.replaceAll("[\n]","");
      message=message.replaceAll("[\r]","");
      elements = message.split(",");
      if(elements[0].equals("$GPGSV")){
        int nr,maxnr,pos;
        // maximal 4 Satelliten pro Meldung
        // [0]=$GPGSV
        // [1]=Anzahl Meldungen
        // [2]=Nummer der Meldung 1 bis [1]
        // [3]=Gesamtanzahl Satelliten;
        // [4]-[7] erster Satellit
        // [8]-[11] zweiter Satellit
        // [12]-[15] dritter Satellit
        // [16]-[19] vierter Satellit
        //println(elements.length+" "+message);
        maxnr=Integer.valueOf(elements[1]);
        nr=Integer.valueOf(elements[2]);
        maxsat=Integer.valueOf(elements[3]);
        pos=(nr-1)*4;
        sat[pos].id=elements[4];
        sat[pos].elevation=Integer.valueOf(elements[5]);
        sat[pos].azimuth=Integer.valueOf(elements[6]);
        sat[pos].snr=Integer.valueOf(elements[7]);
        if(elements.length>=12){
          pos++;
          sat[pos].id=elements[8];
          sat[pos].elevation=Integer.valueOf(elements[9]);
          sat[pos].azimuth=Integer.valueOf(elements[10]);
          sat[pos].snr=Integer.valueOf(elements[11]);
          if(elements.length>=16){
            pos++;
            sat[pos].id=elements[12];
            sat[pos].elevation=Integer.valueOf(elements[13]);
            sat[pos].azimuth=Integer.valueOf(elements[14]);
            sat[pos].snr=Integer.valueOf(elements[15]);
            if(elements.length>=20){
              pos++;
              sat[pos].id=elements[16];
              sat[pos].elevation=Integer.valueOf(elements[17]);
              sat[pos].azimuth=Integer.valueOf(elements[18]);
              sat[pos].snr=Integer.valueOf(elements[19]);
            }
          }
        }
      }
     else if(elements[0].equals("$GPGGA")){
       Time=elements[1];
       Latitude=elements[2]+" "+elements[3];
       Longitude=elements[4]+" "+elements[5];
       Fix=elements[6]+" "+elements[7];
         println(elements.length+" "+message);
         println(elements[1]);
         println(elements[2]);
         println(elements[3]);
   }
  }
   catch (Exception e){
    }
  }
}


import processing.serial.*;
Serial port;
int mode=0,ubxlen=0;
int W=600;
int H=320;
byte[] bmessage;

void ubxsend(int clss,int id,String s){
  int len=s.length()/2;
  bmessage[0]=(byte)0xb5;
  bmessage[1]=(byte)0x62;
  bmessage[2]=(byte)clss;
  bmessage[3]=(byte)id;
  bmessage[4]=(byte)(len6amp;0xff);
  bmessage[5]=(byte)(len>>8);
  for(int i=0;i<len;i++)bmessage[6+i]=(byte)Integer.parseInt(s.substring(2*i,2*i+2),16);
  byte ck_a,ck_b,i;
  ck_a=ck_b=0;
  for(i=2;i<6+len;i++){
    ck_a+=bmessage[i];
    ck_b+=ck_a;
  }
  bmessage[6+len]=ck_a;
  bmessage[7+len]=ck_b;
  for(i=0;i<8+len;i++) port.write(bmessage[i]);
}

void setup() {
  bmessage= new byte[100];
  size(W,H);
  println(Serial.list());
  port = new Serial(this, Serial.list()[2], 9600);

  delay(3000);
//ubxsend(6,8,"C800"+"0100"+"0100");delay(100);    //    200ms rate    200=0x00c8
  ubxsend(6,8,"E803"+"0100"+"0100");delay(100);    //  1.000ms rate  1.000=0x03e8
//ubxsend(6,8,"1027"+"0100"+"0100");delay(100);    // 10.000ms rate 10.000=0x2710

  ubxsend(6,1,"F100"+"000000000000");delay(100);   // UBX,00
  ubxsend(6,1,"F103"+"000000000000");delay(100);   // UBX,03
  ubxsend(6,1,"F104"+"000000000000");delay(100);   // UBX,04
  ubxsend(6,1,"F105"+"000000000000");delay(100);   // UBX,05
  ubxsend(6,1,"F106"+"000000000000");delay(100);   // UBX,06
  ubxsend(6,1,"F140"+"000000000000");delay(100);   // UBX,40
  ubxsend(6,1,"F141"+"000000000000");delay(100);   // UBX,41
  ubxsend(6,1,"F00A"+"000000000000");delay(100);   // DTM
  ubxsend(6,1,"F009"+"000000000000");delay(100);   // GBS
  ubxsend(6,1,"F000"+"000100000000");delay(100);   // GGA only target 2
  ubxsend(6,1,"F001"+"000000000000");delay(100);   // GLL
  ubxsend(6,1,"F040"+"000000000000");delay(100);   // GPQ
  ubxsend(6,1,"F006"+"000000000000");delay(100);   // GRS
  ubxsend(6,1,"F002"+"000000000000");delay(100);   // GSA
  ubxsend(6,1,"F007"+"000000000000");delay(100);   // GST
  ubxsend(6,1,"F003"+"000100000000");delay(100);   // GSV only target 2
  ubxsend(6,1,"F004"+"000100000000");delay(100);   // RMC only target 2
  ubxsend(6,1,"F00E"+"000000000000");delay(100);   // THS
  ubxsend(6,1,"F041"+"000000000000");delay(100);   // TXT
  ubxsend(6,1,"F005"+"000000000000");delay(100);   // VTG
}

void draw() {
  background(0);
}

void serialEvent(Serial p){
  byte firstChar;
  if(port.available() > 0){
    firstChar=(byte)port.read();
    if(mode==0 6amp;6amp; firstChar=='$'       ){println();print("NMEA: ");mode=1;}
    if(mode==0 6amp;6amp; firstChar==(byte)0xb5){println();print("UBOX: ");mode=2;}
    if(mode==1){if(firstChar=='\n')mode=0;else print((char)firstChar);}
    else {
      print(hex(firstChar)+" ");
      mode++;
      switch(mode){
        case 3:                              // 0xb5
        case 4:                              // 0x62
        case 5:                              // class
        case 6: ubxlen=0;              break;// id
        case 7: ubxlen=firstChar;      break;// lsb
        case 8: ubxlen+=(firstChar<<8);break;// msb
        default: if(mode>=10+ubxlen)mode=0;
      }
    }
  }
}

GPS-Modul mit u-blox NEO-6M

Erster Test an USB-Seriell-Adapter Sparkfun 3,3V FTDI Basic

Ausgaben des Moduls nach dem Einschalten

Processing Quelltext

Standardmeldungen des Moduls NEO-6M

Direkt nach dem Einschalten (noch ohne Zeitinformation)

Ohne Fix

Mit 3D-Fix

Alle Meldungen

UBX 00 Lat/Long Position Data

UBX 03 Satellite Status

UBX 04 Time of Day and Clock Information

DTM Datum Reference

GBS GNSS Satellite Fault Detection

GGA Global positioning system fix data

GLL Latitude and longitude, with time of position fix and status

GRS GNSS Range Residuals

GSA GNSS DOP and Active Satellites

GST GNSS Pseudo Range Error Statistics

GSV GNSS Satellites in View

RMC Recommended Minimum data

VTG Course over ground and Ground speed

ZDA Time and Date