This is a simple E-Mail Alerter/Alarm. If PIR motion sensor detected something or someone active/moving, an E-Mail will be sent to a specified E-Mail account by arduino. I specified my gmail account to receive it.
這次利用手邊放了一陣子的Ethernet Shield來做Email的警報器,如果紅外線人體感測器感測到有人或有東西在移動(測試大約6公尺左右距離都沒問題),馬上發出一封email到我的gmail信箱. 我的手機馬上就會通知我有來信.
使用的材料:
1.Arduino board x 1
2.Ethernet Shield x 1
3.PIR Motion Sensor
4.I/O Expansion Shield (option)
5.2 Email accounts, one is sender(from), another one is receiver(to)
Sketch: (for Arduino 0022 version)
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#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xAF, 0xCE, 0xDD }; // whatever mac you want
byte ip[] = { 192, 168, 0, 109};
byte server[] = { 203, 188, 201, 253 }; // Mail server address smtp.mail.yahoo.com.tw)
Client client(server, 25); // yahoo's mobile smtp server ip/port 587
/////////////////////////////
//VARS
//the time we give the sensor to calibrate (10-60 secs according to the datasheet)
int calibrationTime = 30;
//the time when the sensor outputs a low impulse
long unsigned int lowIn;
//the amount of milliseconds the sensor has to be low
//before we assume all motion has stopped
long unsigned int pause = 5000;
boolean lockLow = true;
boolean takeLowTime;
int pirPin = 3; //the digital pin connected to the PIR sensor's output
int ledPin = 13;
int nPIR_detect;
void setup()
{
Ethernet.begin(mac, ip);
Serial.begin(57600);
pinMode(pirPin, INPUT);
digitalWrite(pirPin, LOW);
//give the sensor some time to calibrate
Serial.print("calibrating sensor ");
for(int i = 0; i < calibrationTime; i++){
Serial.print(".");
delay(1000);
}
Serial.println(" done");
Serial.println("SENSOR ACTIVE");
delay(50);
nPIR_detect = 0;
}
void loop()
{
delay(1000);
if(PIR_detected()) // PIR : HIGH
{
if (client.available()) {
char c = client.read();
Serial.print(c);
}
Serial.println("connecting...");
if (client.connect()) {
Serial.println("connected");
client.println("EHLO smtp.mail.yahoo.com.tw");
// client.println("AUTH PLAIN AHNpbm9jZ3RjbGVuQHlhaH9vLmNvbSgwet323tcxYTU="); // example
client.println("AUTH PLAIN *************************************************="); // replace the **'s with your auth info from the perl script.
client.println("MAIL FROM:<**@yahoo.com.tw>"); // replace the ** with your mail address
client.println("RCPT TO:<**@gmail.com>"); // replace the ** with to mail address
client.println("DATA");
client.println("From: <**@yahoo.com.tw>");
client.println("TO: <**@gmail.com>");
client.println("SUBJECT: Something has been detected by PIR");
client.println();
client.println("This is PIR testing.");
client.println("Warning: detected something!!");
client.println(".");
client.println(".");
delay(1000);
client.stop();
Serial.println("mail sent!!");
delay(30000);
}
else
{
Serial.println("connection failed");
}
}
}
boolean PIR_detected()
{
boolean bPIR;
if(digitalRead(pirPin) == HIGH){
digitalWrite(ledPin, HIGH); //the led visualizes the sensors output pin state
if(lockLow){
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;
Serial.println("---");
Serial.print("motion detected at ");
Serial.print(millis()/1000);
Serial.println(" sec");
delay(50);
}
takeLowTime = true;
bPIR = true;
}
if(digitalRead(pirPin) == LOW){
digitalWrite(ledPin, LOW); //the led visualizes the sensors output pin state
if(takeLowTime){
lowIn = millis(); //save the time of the transition from high to LOW
takeLowTime = false; //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause,
//we assume that no more motion is going to happen
if(!lockLow && millis() - lowIn > pause){
//makes sure this block of code is only executed again after
//a new motion sequence has been detected
lockLow = true;
Serial.print("motion ended at "); //output
Serial.print((millis() - pause)/1000);
Serial.println(" sec");
delay(50);
}
bPIR = false;
}
return bPIR;
}
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my blog:
http://sinocgtchen.blogspot.com/
my Youtube:
http://www.youtube.com/user/sinocgtchen
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