Two SoftwareSerial ports, one hardware sreial

Projects Programming
1

I wrote a code for arduino uno, so that it collects data from the GPS sensor and sends it to the server via GET method via the GPRS shield. Here is the code:

#include <GPRS_Shield_Arduino.h>
#include <TroykaGPS.h>
#include <SoftwareSerial.h>
#define IMEI "861508038977104"
#define INTERVAL 60000
#define LEN 370
char time[16];
char date[16];
char tcpBuffer[370];
char buf[16];//time buffer
unsigned long previousMillis = 0;


SoftwareSerial gprsStream(10, 11);
SoftwareSerial gpsStream(4, 5);
GPS gps(gpsStream);
GPRS gprs(gprsStream);


void setup(){
	Serial.begin(9600);
	while(!Serial){}
	Serial.println("Serial opened on 9600");
	delay(100);
	gpsStream.begin(115200);
	Serial.println("gpsStream opened on 115200");
	gpsStream.write("$PMTK251,9600*17\r\n");  
	Serial.println("gpsStream changed to 9600");
	gpsStream.end();
	Serial.println("gpsStream closed");
}

void loop(){
	gprsStream.begin(9600);
	Serial.println("gprsStream opened on 9600");
	gprs.powerOn();
	gprs.getDateTime(buf);
	Serial.print("time on gprs: ");
	Serial.println(buf);
	gprs.powerOff();
	gprsStream.end();
	Serial.println("gprsSerial closed");
	gpsStream.begin(9600);
	Serial.println("gpsStream opened on 9600");
	if(gps.available()){
		gps.readParsing();
		switch(gps.getState()){
		case GPS_OK:
			gps.getTime(time, 16);
			gps.getDate(date, 16);
			sprintf(tcpBuffer, "GET /recvdata.php?%s_%s.txt&data=%s_%s_%s_%f_%f HTTP/1.0\r\n\r\n", date, time, IMEI, date, time, gps.getLatitudeBase10(), gps.getLongitudeBase10());
			Serial.print("formed: ");
			Serial.print(tcpBuffer);
			break;
		case GPS_ERROR_DATA:
			sprintf(tcpBuffer, "GET /recvdata.php?filename=%s_err.txt&data=ERROR_DATA_%s_%s HTTP/1.0\r\n\r\n", buf, buf, IMEI);
			Serial.print("formed: ");
			Serial.println(tcpBuffer);
			break;
		case GPS_ERROR_SAT:
			sprintf(tcpBuffer, "GET /recvdata.php?filename=%s_err.txt&data=ERROR_SAT_%s_%s HTTP/1.0\r\n\r\n", buf, buf, IMEI);
			Serial.print("formed: ");
			Serial.println(tcpBuffer);
			break;
		}
	}
	else{
		Serial.println("GPS not available");
		return;
	}
	gpsStream.end();
	Serial.println("gpsStream closed");
	gprsStream.begin(9600);
	Serial.println("gprsStream opened on 9600");
	gprs.powerOn();
	while(!gprs.init()){
		Serial.println("GPRS init error");
		delay(500);
	}
	Serial.println("GPRS init success");
	delay(3000);
	while(!gprs.join("internet.beeline.ru", "beeline", "beeline")){
		Serial.println("GPRS error joining network");
		delay(1000);
	}
	Serial.println("GPRS connected to the network");
	Serial.print("IP address is ");
	Serial.println(gprs.getIPAddress());
	while(!gprs.connect(TCP, "188.44.53.81", 80)){
		Serial.println("GPRS could not connect to the internet");
		delay(1000);
	}
	Serial.println("GPRS connected to the internet");
	gprs.send(tcpBuffer);
	clearTcpBuffer();
	gprs.close();
	gprs.disconnect();
	delay(100);
	Serial.println("Buffer sent");
	gprs.powerOff();
	gprsStream.end();
	Serial.println("gprsStream closed");
	Serial.println("waiting...");
	while(millis() - previousMillis < INTERVAL){
	}
	previousMillis = millis();
}

void clearTcpBuffer(){
	for(int i = 0; i < 370; i++){
		tcpBuffer[i] = 0;
	}
}

This code does not give any output on the hardware Serial port. The parts for GPS and GPRS shield work perfectly separately

2

softwareserial library does not support more that one is instance unless you use the listen()/ isListening()/ stopListening() routines to switch between instances... may not be the best route though for what you are doing.
There are other software serial libraries with I believe can support that OR get a leonardo (it had an addtional hardware serial port (Serial1) you can use) + software serial OR another board such as the MEGA that has 4 hardware serial ports