我在获取GPS数据时遇到问题

Question

我已经测试了GPS代码，而没有超声波传感器和加速度计的代码，它工作得很好。

但是现在我正在尝试将GPS与加速度计和超声波传感器一起使用，GPS无法向我提供正确的数据。 但是，加速度计和超声波传感器会将正确的值返回给arduino串行监视器。

由于我使用的是Adafruit Ultimate GPS Breakout v3，因此在解析NMEA数据时， 我应该得到类似的东西 时间：xx：xx：xx.xxx 日期：xx / xx / xxxx 位置等

相反，只有到达日期并用0填充。

已经尝试仅使用GPS代码来验证是否是GPS模块问题。

整个代码

//Declare Needed header file
#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>
#include <Wire.h>
#define GPSSerial Serial1
Adafruit_GPS GPS(&GPSSerial);
#define GPSECHO false

uint32_t timer=millis();

//Declare the pins
#define echoPin 7
#define trigPin 8

//Define Accelerometer Address
const int MPU=0x68;

//Declare Accelerometer Variable
int16_t AcX,AcY,AcZ,Tmp,GyX,GyY,GyZ;

float f1=1.3;
byte *fp = (byte *) &f1;

//Declare the ultrasonic variables
long duration;
long distance;
void setup()
{
  //Join I2C bus as Slave with Address 8;
  Wire.begin (8);

  //Call SendData Command
  Wire.onRequest(SendData);

  //Setup Pins as output and input to operate ultrasonic sensor
  pinMode(echoPin, INPUT);
  pinMode(trigPin, OUTPUT);

  //Setup for Accelerometer Sensor
  Wire.beginTransmission(MPU);
  Wire.write(0x6B);
  Wire.write(0);
  Wire.endTransmission(true);
  //Begin Serial Monitor

  Serial.begin (9600);
  //GPS Sensor Setting
  Serial.begin (9600);
  Serial.println("Adafruit GPS Test");
  GPS.begin (9600);
  GPS.sendCommand(PMTK_SET_NMEA_UPDATE_10HZ);
  GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
  delay(1000);
}

void loop ()
{
  dist();
  GY521();
  readGPS();
  delay(3000);
}
//Obtain Ultrasonic Data
void dist()
{
  digitalWrite (trigPin,LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin,HIGH);
  delayMicroseconds(2);
  digitalWrite(trigPin,LOW);
  duration=pulseIn(echoPin,HIGH);
  distance=duration/58.2;
  Serial.print(distance);
  Serial.println(" cm");
}
//Obtain Accelerometer Data
void GY521()
{
  Wire.beginTransmission(MPU);
  Wire.write(0x3B);
  Wire.endTransmission(false);
  Wire.requestFrom(MPU,12,true);
  AcX=Wire.read()<<8|Wire.read();
  AcY=Wire.read()<<8|Wire.read();
  AcZ=Wire.read()<<8|Wire.read();
  GyX=Wire.read()<<8|Wire.read();
  GyY=Wire.read()<<8|Wire.read();
  GyZ=Wire.read()<<8|Wire.read();

  Serial.println("Accelerometer: ");
  Serial.print("X= "); Serial.println(AcX);
  Serial.print("Y= "); Serial.println(AcY);
  Serial.print("Z= "); Serial.println(AcZ);

//  Serial.print("f1= ");
//  Serial.print(fp[0], HEX);
//  Serial.print(fp[1], HEX);
//  Serial.print(fp[2], HEX);
//  Serial.print(fp[3], HEX);
//  Serial.println();

}

void readGPS()
{
  // 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);
  // 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 trying to print out data
    // 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 > 2000) {
    timer = millis(); // reset the timer
    Serial.print("\nTime: ");
    if (GPS.hour < 10) { Serial.print('0'); }
    Serial.print(GPS.hour, DEC); Serial.print(':');
    if (GPS.minute < 10) { Serial.print('0'); }
    Serial.print(GPS.minute, DEC); Serial.print(':');
    if (GPS.seconds < 10) { Serial.print('0'); }
    Serial.print(GPS.seconds, DEC); Serial.print('.');
    if (GPS.milliseconds < 10) {
      Serial.print("00");
    } else if (GPS.milliseconds > 9 && GPS.milliseconds < 100) {
      Serial.print("0");
    }
    Serial.println(GPS.milliseconds);
    Serial.print("Date: ");
    Serial.print(GPS.day, DEC); Serial.print('/');
    Serial.print(GPS.month, DEC); Serial.print("/20");
    Serial.println(GPS.year, DEC);
    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);
    }
  }
}

void SendData()
{
  byte test[]={distance,AcZ>>0x8, AcZ, fp[0], fp[1], fp[2], fp[3]};
  Wire.write(test,7);
}

仅GPS代码

#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>
#include <Wire.h>
#define GPSSerial Serial1
Adafruit_GPS GPS(&GPSSerial);
#define GPSECHO false

uint32_t timer=millis();
void setup()
{
  Serial.begin (9600);
  Serial.println("Adafruit GPS Test");
  GPS.begin (9600);
  GPS.sendCommand(PMTK_SET_NMEA_UPDATE_10HZ);
  GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
  delay(1000);
}

void loop()
{
  readGPS();
}

void readGPS()
{
  // 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);
  // 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 trying to print out data
    // 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 > 2000) {
    timer = millis(); // reset the timer
    Serial.print("\nTime: ");
    if (GPS.hour < 10) { Serial.print('0'); }
    Serial.print(GPS.hour, DEC); Serial.print(':');
    if (GPS.minute < 10) { Serial.print('0'); }
    Serial.print(GPS.minute, DEC); Serial.print(':');
    if (GPS.seconds < 10) { Serial.print('0'); }
    Serial.print(GPS.seconds, DEC); Serial.print('.');
    if (GPS.milliseconds < 10) {
      Serial.print("00");
    } else if (GPS.milliseconds > 9 && GPS.milliseconds < 100) {
      Serial.print("0");
    }
    Serial.println(GPS.milliseconds);
    Serial.print("Date: ");
    Serial.print(GPS.day, DEC); Serial.print('/');
    Serial.print(GPS.month, DEC); Serial.print("/20");
    Serial.println(GPS.year, DEC);
    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);
    }
  }
}

我需要获取这些数据

      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);