Motion Detection with SMS notification using Sim800L RTC and PIR Sensor

May 1st, 2019 by cedcraftscodes

In this tutorial, we will learn how to connect Real-time clock, PIR Sensor and SIM800L module to send us a notification whenever motion is detected. This is a great way to monitor if unauthorize person/burglar enters your house.

Demonstration

Requirements

Arduino

Sim800L GSM Module

DS1302 Real-time Clock Module 2

DS1302.zip (1102 downloads) Library

PIR Sensor

Jumper Wires

Breadboard

Pin Wiring

GSM Module

VCC	5V
GND	GND
RX	Digital Pin 2
TX	Digital Pin 3

RTC Module

VCC	5V
GND	GND
CLK	Digital Pin 4
DAT	Digital Pin 5
RST	Digital Pin 6

PIR Sensor

VCC	5V
GND	GND
OUT	Digital Pin 13

Installing the Library

Open up your Arduino IDE. Click on “Sketch -> Include Library -> Add .ZIP Library” and browse your downloaded DS1302.zip (1102 downloads) Library.

Sourcecode

Upload the following source code to your Arduino.

#include <DS1302.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial(3, 2);
DS1302 rtc(6, 5, 4);
int sensor = 13;  
int val = 0;
void setup()
{
// Set the clock to run-mode, and disable the write protection
rtc.halt(false);
rtc.writeProtect(false);
Serial.begin(9600);
// Sets the time of your RTC module
//  rtc.setDOW(WEDNESDAY);     
//  rtc.setTime(16, 36, 0);           //Set the time 4:30 PM; Military Time
//  rtc.setDate(01, 05, 2018);        //dd, MM, yyyy format
}
void loop()
{
val = digitalRead(sensor);
if (val == HIGH) { 
sendMotionDetectionMsg();
}
delay(1000);
}
void sendMotionDetectionMsg() {
String dowStr = rtc.getDOWStr();
String dateStr = rtc.getDateStr();
String timeStr = rtc.getTimeStr();
String message = String("Motion Detected: ") + dowStr + String(" ") + dateStr + String(" ") + timeStr;
Serial.println(message);
sendSms(message, "+YYXXXXXXXXXX");
}
void sendSms(String message, String number) {
mySerial.begin(9600);
delay(1000);
mySerial.println("AT");
delay(500);
mySerial.println("AT+CMGF=1");
delay(500);
mySerial.println("AT+CMGS=\""+ number +"\"\r");
delay(500);
mySerial.print(message);
delay(500);
mySerial.write(26);
}

#include <DS1302.h>

#include <SoftwareSerial.h>

SoftwareSerial mySerial(3, 2);

DS1302 rtc(6, 5, 4);

int sensor = 13;

int val = 0;

void setup()

{

// Set the clock to run-mode, and disable the write protection

rtc.halt(false);

rtc.writeProtect(false);

Serial.begin(9600);

// Sets the time of your RTC module

// rtc.setDOW(WEDNESDAY);

// rtc.setTime(16, 36, 0); //Set the time 4:30 PM; Military Time

// rtc.setDate(01, 05, 2018); //dd, MM, yyyy format

}

void loop()

{

val = digitalRead(sensor);

if (val == HIGH) {

sendMotionDetectionMsg();

}

delay(1000);

}

void sendMotionDetectionMsg() {

String dowStr = rtc.getDOWStr();

String dateStr = rtc.getDateStr();

String timeStr = rtc.getTimeStr();

String message = String("Motion Detected: ") + dowStr + String(" ") + dateStr + String(" ") + timeStr;

Serial.println(message);

sendSms(message, "+YYXXXXXXXXXX");

}

void sendSms(String message, String number) {

mySerial.begin(9600);

delay(1000);

mySerial.println("AT");

delay(500);

mySerial.println("AT+CMGF=1");

delay(500);

mySerial.println("AT+CMGS=\""+ number +"\"\r");

delay(500);

mySerial.print(message);

delay(500);

mySerial.write(26);

}

Change the YY to your country code proceeding with your number. (e.g 914564321) where 91 is country code for India, followed by 10 Digit code.

If you have not set the time in your RTC module, you can uncomment and change the values. Follow the form

// Sets the time of your RTC module
//  rtc.setDOW(WEDNESDAY);     
//  rtc.setTime(16, 36, 0);           //Set the time 4:30 PM; Military Time
//  rtc.setDate(01, 05, 2018);        //dd, MM, yyyy format

// Sets the time of your RTC module

// rtc.setDOW(WEDNESDAY);

// rtc.setTime(16, 36, 0); //Set the time 4:30 PM; Military Time

// rtc.setDate(01, 05, 2018); //dd, MM, yyyy format

Screenshot

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If you have inquiries, feel free to comment down below.

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Comments

2 Comments

Melvin
March 7, 2020 at 11:20 pm
Better still what do I have to change (in the codes) if I’m to use DS3231 RTC
Reply
John
September 22, 2020 at 2:39 pm
Do you find a result for DS3231 RTC?
Thanks
Reply