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#include
SoftwareSerial Serial1(2,3); //make RX arduino line is pin 2, make TX arduino line is pin 3.
SoftwareSerial gps(10,11);
#include
LiquidCrystal lcd(4,5,6,7,8,9);
#define x A1
#define y A2
#define z A3
int xsample=0;
int ysample=0;
int zsample=0;
#define samples 10
#define minVal -50
#define MaxVal 50
int i=0,k=0;
int gps_status=0;
float latitude=0;
float logitude=0;
String Speed="";
String gpsString="";
char *test="$GPRMC";
void initModule(String cmd, char *res, int t)
{
while(1)
{
Serial.println(cmd);
Serial1.println(cmd);
delay(100);
while(Serial1.available()>0)
{
if(Serial1.find(res))
{
Serial.println(res);
delay
return;
}
else
{
Serial.println("Error");
}
}
delay
}
}
void setup()
{
Serial1.begin(9600);
Serial.begin(9600);
lcd.begin(16,2);
lcd.print("Accident Alert ");
lcd.setCursor(0,1);
lcd.print(" System ");
delay(2000);
lcd.clear();
lcd.print("Initializing");
lcd.setCursor(0,1);
lcd.print("Please Wait...");
delay(1000);
Serial.println("Initializing....");
initModule("AT","OK",1000);
initModule("ATE1","OK",1000);
initModule("AT+CPIN?","READY",1000);
initModule("AT+CMGF=1","OK",1000);
initModule("AT+CNMI=2,2,0,0,0","OK",1000);
Serial.println("Initialized Successfully");
lcd.clear();
lcd.print("Initialized");
lcd.setCursor(0,1);
lcd.print("Successfully");
delay(2000);
lcd.clear();
lcd.print("Callibrating ");
lcd.setCursor(0,1);
lcd.print("Acceleromiter");
for(int i=0;i MaxVal || yValue < minVal || yValue > MaxVal || zValue < minVal || zValue > MaxVal)
{
get_gps();
show_coordinate();
lcd.clear();
lcd.print("Sending SMS ");
Serial.println("Sending SMS");
Send();
Serial.println("SMS Sent");
delay(2000);
lcd.clear();
lcd.print("System Ready");
}
}
void gpsEvent()
{
gpsString="";
while(1)
{
while (gps.available()>0) //Serial incoming data from GPS
{
char inChar = (char)gps.read();
gpsString+= inChar; //store incoming data from GPS to temparary string str[]
i++;
// Serial.print(inChar);
if (i < 7)
{
if(gpsString[i-1] != test[i-1]) //check for right string
{
i=0;
gpsString="";
}
}
if(inChar=='\r')
{
if(i>60)
{
gps_status=1;
break;
}
else
{
i=0;
}
}
}
if(gps_status)
break;
}
}
void get_gps()
{
lcd.clear();
lcd.print("Getting GPS Data");
lcd.setCursor(0,1);
lcd.print("Please Wait.....");
gps_status=0;
int x=0;
while(gps_status==0)
{
gpsEvent();
int str_lenth=i;
coordinate2dec();
i=0;x=0;
str_lenth=0;
}
}
void show_coordinate()
{
lcd.clear();
lcd.print("Lat:");
lcd.print(latitude);
lcd.setCursor(0,1);
lcd.print("Log:");
lcd.print(logitude);
Serial.print("Latitude:");
Serial.println(latitude);
Serial.print("Longitude:");
Serial.println(logitude);
Serial.print("Speed(in knots)=");
Serial.println(Speed);
delay(2000);
lcd.clear();
lcd.print("Speed(Knots):");
lcd.setCursor(0,1);
lcd.print(Speed);
}
void coordinate2dec()
{
String lat_degree="";
for(i=20;i<=21;i++)
lat_degree+=gpsString[i];
String lat_minut="";
for(i=22;i<=28;i++)
lat_minut+=gpsString[i];
String log_degree="";
for(i=32;i<=34;i++)
log_degree+=gpsString[i];
String log_minut="";
for(i=35;i<=41;i++)
log_minut+=gpsString[i];
Speed="";
for(i=45;i<48;i++) //extract longitude from string
Speed+=gpsString[i];
float minut= lat_minut.toFloat();
minut=minut/60;
float degree=lat_degree.toFloat();
latitude=degree+minut;
minut= log_minut.toFloat();
minut=minut/60;
degree=log_degree.toFloat();
logitude=degree+minut;
}
void Send()
{
Serial1.println("AT");
delay(500);
serialPrint();
Serial1.println("AT+CMGF=1");
delay(500);
serialPrint();
Serial1.print("AT+CMGS=");
Serial1.print('"');
Serial1.print("9821757249"); //mobile no. for SMS alert
Serial1.println('"');
delay(500);
serialPrint();
Serial1.print("Latitude:");
Serial1.println(latitude);
delay(500);
serialPrint();
Serial1.print(" longitude:");
Serial1.println(logitude);
delay(500);
serialPrint();
Serial1.print(" Speed:");
Serial1.print(Speed);
Serial1.println("Knots");
delay(500);
serialPrint();
Serial1.print("http://maps.google.com/maps?&z=15&mrt=yp&t=k&q=");
Serial1.print(latitude,6);
Serial1.print("+"); //28.612953, 77.231545 //28.612953,77.2293563
Serial1.print(logitude,6);
Serial1.write(26);
delay(2000);
serialPrint();
}
void serialPrint()
{
while(Serial1.available()>0)
{
Serial.print(Serial1.read());
}
}
Retrouvez l’histoire de Raspberry Pi dans cette vidéo :
