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Introduction
In this project, I am going to show you how to detect someone stealing your valuable stuff. If detected, Arduino sends a notification via Gmail and makes an alert sound and light.
Demonstration
Things Used In This Project
- 1 x Arduino UNO & Genuino UNO
- 1 x USB Cable for Arduino
- 1 x PHPoC WiFi Shield for Arduino
- 1 x Force sensor
- 1 x Resistor 3.3k ohm
- 1 x Relay Module
- 1 x Warning Lights & Electric Horns
- Jumper wires
Wiring Diagram
Detecting Something is Taken Away
To detect treasure present or not, I put the treasure on the force sensor. This sensor let us know how heavy treasure is. If output value of sensor is below a threshold, Its means the treasure is not present and someone took it away.
Electronic part is hidden below table
Laptop overlays force sensor
Electronic part should be hidden under table.
Handling Event
If event is detected, Arduino will make an alert sound and light, and send an Gmail notification to owner.
Source Code
<Arduino code>
Code:
#include "SPI.h"
#include "Phpoc.h"
PhpocEmail email;
PhpocDateTime datetime;
const int THRESHOLD = 50;
boolean objPresent = false;
long adcValue = 0;
boolean sendGmail();
void setup() {
Serial.begin(9600);
while(!Serial)
;
pinMode(A0, INPUT); // to read value from sensor
pinMode(5, OUTPUT); // to control relay
Phpoc.begin(PF_LOG_SPI | PF_LOG_NET | PF_LOG_APP);
datetime.date("Y-M-d H:i:s");
}
void loop() {
// read 30 time and get average value to eliminate noises
adcValue = 0;
for(int i = 0; i < 30; i++)
{
adcValue += analogRead(A0);
delay(10);
}
adcValue /= 30;
if(adcValue < THRESHOLD)
{
if(objPresent)
{
//Alert
digitalWrite(5, HIGH);
// send notification
while(!sendGmail())
;
objPresent = false;
}
}
else
{
objPresent = true;
digitalWrite(5, LOW);
}
}
boolean sendGmail(){
// setup outgoing relay server - gmail.com
email.setOutgoingServer("smtp.gmail.com", 587);
email.setOutgoingLogin("your_account", "your_password");
// setup From/To/Subject
email.setFrom("[email protected]", "Arduino");
email.setTo("[email protected]", "Boss");
email.setSubject("Alert: Your treasure is being taken away");
// write email message
email.beginMessage();
email.println("Location: Planet Earth.");
email.println("");
email.print("Time: ");
email.println(datetime.date());
email.println("");
email.println("Your treasure is being taken away.");
email.endMessage();
// send email
if(email.send() > 0)
{
Serial.println("Email send ok");
return true;
}
else
{
Serial.println("Email send failed");
return false;
}
}
Function References