Go Down

Topic: breaking down long data from a serial.read (Read 728 times) previous topic - next topic

AaronD

I've searched all through the internet and i couldn't find anything. I have a GPS http://www.adafruit.com/product/746 and a touchshield slide http://www.liquidware.com/shop/show/TSL/TouchShield+Slide+ . the screen uses a different software to program it http://www.liquidware.com/antipasto_arduino_ide. The GPS sends the data through serial communications and I already got the GPS to send the data to the screen but it just displays the data in a long text that goes off the screen. Im trying to find a way in the Antipasto IDE to break apart the data and place them where i want in the screen.

arduino code:

Code: [Select]
#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>
#define RXpin 3            //touchshield slide pins
#define TXpin 2
// If you're using a GPS module:
// Connect the GPS Power pin to 5V
// Connect the GPS Ground pin to ground
// If using software serial (sketch example default):
//   Connect the GPS TX (transmit) pin to Digital 3
//   Connect the GPS RX (receive) pin to Digital 2
// If using hardware serial (e.g. Arduino Mega):
//   Connect the GPS TX (transmit) pin to Arduino RX1, RX2 or RX3
//   Connect the GPS RX (receive) pin to matching TX1, TX2 or TX3

// If you're using the Adafruit GPS shield, change
// SoftwareSerial mySerial(3, 2); -> SoftwareSerial mySerial(8, 7);
// and make sure the switch is set to SoftSerial

// If using software serial, keep these lines enabled
// (you can change the pin numbers to match your wiring):
SoftwareSerial mySerial(6, 7);
SoftwareSerial touchSerial = SoftwareSerial(RXpin, TXpin);
Adafruit_GPS GPS(&mySerial);
// If using hardware serial (e.g. Arduino Mega), comment
// out the above six lines and enable this line instead:
//Adafruit_GPS GPS(&Serial1);


// Set GPSECHO to 'false' to turn off echoing the GPS data to the Serial console
// Set to 'true' if you want to debug and listen to the raw GPS sentences.
#define GPSECHO  true

// this keeps track of whether we're using the interrupt
// off by default!
boolean usingInterrupt = false;
void useInterrupt(boolean); // Func prototype keeps Arduino 0023 happy
int tzhour;
int tzminute;
int tzseconds;
int tzmonth;
int tzyear;
int tzday;
void setup() 
{
   
  // connect at 115200 so we can read the GPS fast enough and echo without dropping chars
  // also spit it out
  touchSerial.begin(115200);
  Serial.println("Adafruit GPS library basic test!");

  // 9600 NMEA is the default baud rate for Adafruit MTK GPS's- some use 4800
  GPS.begin(9600);
  //touchSerial.begin(9600);
  // uncomment this line to turn on RMC (recommended minimum) and GGA (fix data) including altitude
  GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
  // uncomment this line to turn on only the "minimum recommended" data
  //GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCONLY);
  // For parsing data, we don't suggest using anything but either RMC only or RMC+GGA since
  // the parser doesn't care about other sentences at this time
 
  // Set the update rate
  GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);   // 1 Hz update rate
  // For the parsing code to work nicely and have time to sort thru the data, and
  // print it out we don't suggest using anything higher than 1 Hz

  // Request updates on antenna status, comment out to keep quiet
  GPS.sendCommand(PGCMD_ANTENNA);

  // the nice thing about this code is you can have a timer0 interrupt go off
  // every 1 millisecond, and read data from the GPS for you. that makes the
  // loop code a heck of a lot easier!
  useInterrupt(true);

  delay(1000);
  // Ask for firmware version
  mySerial.println(PMTK_Q_RELEASE);
}


// Interrupt is called once a millisecond, looks for any new GPS data, and stores it
SIGNAL(TIMER0_COMPA_vect) {
  char c = GPS.read();
  // if you want to debug, this is a good time to do it!
#ifdef UDR0
  if (GPSECHO)
    if (c) UDR0 = c; 
    // writing direct to UDR0 is much much faster than Serial.print
    // but only one character can be written at a time.
#endif
}

void useInterrupt(boolean v) {
  if (v) {
    // Timer0 is already used for millis() - we'll just interrupt somewhere
    // in the middle and call the "Compare A" function above
    OCR0A = 0xAF;
    TIMSK0 |= _BV(OCIE0A);
    usingInterrupt = true;
  } else {
    // do not call the interrupt function COMPA anymore
    TIMSK0 &= ~_BV(OCIE0A);
    usingInterrupt = false;
  }
}

uint32_t timer = millis();
const int offset = 4;  // Central Daylight Time (USA)
void loop(){                    // run over and over again
  // in case you are not using the interrupt above, you'll
  // need to 'hand query' the GPS, not suggested :(
  if (! usingInterrupt) {
    // read data from the GPS in the 'main loop'
    char c = GPS.read();
    // if you want to debug, this is a good time to do it!
    if (GPSECHO)
      if (c) Serial.print(c);
  }
 
  // if a sentence is received, we can check the checksum, parse it...
  if (GPS.newNMEAreceived()) {
    // a tricky thing here is if we print the NMEA sentence, or data
    // we end up not listening and catching other sentences!
    // so be very wary if using OUTPUT_ALLDATA and trytng to print out data
    //Serial.println(GPS.lastNMEA());   // this also sets the newNMEAreceived() flag to false
 
    if (!GPS.parse(GPS.lastNMEA()))   // this also sets the newNMEAreceived() flag to false
      return;  // we can fail to parse a sentence in which case we should just wait for another
  }
 
  // if millis() or timer wraps around, we'll just reset it
  if (timer > millis())  timer = millis();

  // approximately every 2 seconds or so, print out the current stats
  if (millis() - timer > 1000) {
    timer = millis(); // reset the timer
    Serial.print("\nTime: ");
     if (GPS.hour >= 0 && GPS.hour < offset) {
        tzhour = GPS.hour + 20;
      }
      else {
        tzhour = GPS.hour - offset;
      }
      if(tzhour>12){
        tzhour = tzhour - 12;
      }
      tzminute = GPS.minute;
      tzyear = GPS.year;
      tzmonth = GPS.month;
      tzseconds = GPS.seconds;
    if(tzhour<10){touchSerial.print(" ");}touchSerial.print(tzhour);touchSerial.print(" ");
    if(tzminute < 10){touchSerial.print("0");}touchSerial.print(tzminute); Serial.print(':');
    Serial.print(tzseconds, DEC); Serial.print('.');
    Serial.println(GPS.milliseconds);
    Serial.print("Date: ");
    touchSerial.print(" ");touchSerial.print(tzmonth); touchSerial.print("/");
    touchSerial.print(tzday); touchSerial.print('/');
    touchSerial.print(tzyear);
    Serial.print("Fix: "); Serial.print((int)GPS.fix);
    Serial.print(" quality: "); Serial.println((int)GPS.fixquality);
    if(GPS.fix){
      Serial.print("Location: ");
      Serial.print(GPS.latitude, 4); Serial.print(GPS.lat);
      Serial.print(", ");
      Serial.print(GPS.longitude, 4); Serial.println(GPS.lon);
      Serial.print("Speed (knots): "); Serial.println(GPS.speed);
      Serial.print("Angle: "); Serial.println(GPS.angle);
      Serial.print("Altitude: "); Serial.println(GPS.altitude);
      Serial.print("Satellites: "); Serial.println((int)GPS.satellites);
    }
  }
}


touchshield slide code:

Code: [Select]
void setup(){
  Serial.begin(115200);
  background(0);
}
void loop(){
char charIn = 0;
byte i = 0;
char stringIn[32] = "";
while(Serial.available()){
charIn = Serial.read();
stringIn[i] = charIn;
i++;
}
  // Clear screen and display the serial buffer as text
  if(stringIn[0]){
   background(0);
   stroke(153);
   text(stringIn,100,135,15);
  }
}

trembn2

If this data is printing to the serial monitor via the arduino, try using Serial.println() rather than Serial.print. the extra "ln" at the end adds a return/enter between instances of running the void loop code. This will help with getting the data to push to the next line in the serial monitor, if thats what you're trying to do.

AaronD

no i know that. im trying to display it on the touch screen because it displays on the screen for ex: "10:004/22/14" thats the time and date that is shown on the screen. im trying to break apart that and put the tme on the center of the screen and the date onj the bottom right

trembn2

oh ok. youre way over my head. good luck!

zoomkat

You might check out textfinder.

http://playground.arduino.cc/Code/TextFinder
Google forum search: Use Google Search box in upper right side of this page.
Why I like my 2005 Rio Yellow Honda S2000  https://www.youtube.com/watch?v=pWjMvrkUqX0

Go Up