please help me to monitor temperature via GSM sim900 for sms purpose and lcd 16x2 monitor.
this my script and still get error when compile it :
#include "DHT.h"
#include <Wire.h> // Comes with Arduino IDE
#include <LiquidCrystal_I2C.h>
#include "SIM900.h"
#include <SoftwareSerial.h>
#include "sms.h"
#define DHTPIN 2 // what pin we're connected to
// Uncomment whatever type you're using!
#define DHTTYPE DHT11 // DHT 11
// #define DHTTYPE DHT22 // DHT 22 (AM2302)
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
DHT dht(DHTPIN, DHTTYPE);
SMSGSM sms;
boolean started=false;
// set the LCD address to 0x20 for a 20 chars 4 line display
// Set the pins on the I2C chip used for LCD connections:
// addr, en,rw,rs,d4,d5,d6,d7,bl,blpol
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD I2C address
void setup() {
Serial.begin(9600);
// set up the LCD's number of columns and rows:
lcd.begin(16,2);
dht.begin();
Serial.begin(9600);
Serial.println("GSM Shield testing.");
if (gsm.begin(2400)){
Serial.println("\nstatus=READY");
started=true;
}
else Serial.println("\nstatus=IDLE");
if(started){
if (sms.SendSMS("+6285773708599", "SMS from Arduino"))
Serial.println("\nSMS sent OK");
if (sms.SendSMS("+6285648871007", "SMS from Arduino"))
Serial.println("\nSMS sent OK");
}
};
void loop() {
// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
int h = dht.readHumidity();
int t = dht.readTemperature();
// set the cursor to (0,0):
lcd.setCursor(0, 0);
// print from 0 to 9:
lcd.print("Temp: ");
lcd.print(t);
lcd.print("C");
// set the cursor to (16,1):
lcd.setCursor(0,1);
lcd.print("Humidity: ");
lcd.print(h);
lcd.print("%");
}