The PIR alert can be located at home. Arduino will send messages to Google engine app when PIR detects someone moving. I designed a simple app(email sending) on google app engine (everdevice.appspot.com) to receive messages from arduino, and then send a email to someone you want. If you don't mind the default email sender(my email address), you may try it by my sketch in my blog. In this practice, I replaced Arduino with Motoduino, and on 3G wireless environment(3G share point). Note: if you used AP router, please check the AP router setting whether it is not available by IP address direct hookup.
利用人體紅外線感測器偵測到物體移動時會發出Email通知, 此裝置放在住家或防止小偷侵入的場所是非常適合,如果不介意內設的Email發出者,有興趣的Arduino 網友可以試試底下程式!
主要利用我寫的一個google engine app (everdevice.appspot.com)專門接收arduino送來的message,然後再轉成email送出.
DIY Material:
1. Arduino or Motoduino
2. Arduino WiFi Shield
3.PIR Sensor
4. WiFi AP Router
Arduino Sketch:
--------------------- Begin of Sketch ----------------
#include <WiServer.h>
// Wireless configuration parameters -
unsigned char local_ip[]=
{192,168,1,165}; // IP address of WiShield (modify it)
unsigned char gateway_ip[]=
{192,168,1,1}; // router or gateway IP address (modify it)
unsigned char subnet_mask[]= {255,255,255,0}; // subnet mask for the local network
char ssid[] =
{"Arduino"}; // max 32 bytes (modify it)
unsigned char security_type =
0; // 0 - open; 1 - WEP; 2 - WPA; 3 - WPA2 (modify it)
// WPA/WPA2 passphrase
const prog_char security_passphrase[] PROGMEM = {"0123456789"};
// max 64 characters
// WEP 128-bit keys
prog_uchar wep_keys[] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Key 0
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Key 1
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Key 2
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
// Key 3
};
// setup the wireless mode; infrastructure - connect to AP; adhoc - connect to another WiFi device
#define WIRELESS_MODE_INFRA
1
#define WIRELESS_MODE_ADHOC
2
unsigned char wireless_mode = WIRELESS_MODE_INFRA;
unsigned char ssid_len;
unsigned char security_passphrase_len;
// End of wireless configuration parameters ----------------------------------------
uint8 ip[] = {74,125,31,141}; //IP address of everdevice.appspot.com
char hostName[] = "everdevice.appspot.com"; // google engine app
char url[]="/mygaetest?action=sendmail&to=
xxxx@xxxx.xxx&device=DHT11&value=33&body=this";
// From user: sinocgtchen@gmail.com (default)
// To user: xxxx@xxxx.xxx (modify it)
// device : device name (modify it)
// body : mail body (modify it)
GETrequest getEverDevice(ip, 80, hostName, url);
int pirPin = 3; //the digital pin connected to the PIR sensor's output
int ledPin = 13;
/////////////////////////////
//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;
boolean detected = false;
void setup()
{
Serial.begin(57600);
pinMode(pirPin, INPUT);
digitalWrite(pirPin, LOW);
Serial.print("calibrating sensor ");
for(int i = 0; i < calibrationTime; i++){
Serial.print(".");
delay(1000);
}
Serial.println(" done");
Serial.println("SENSOR ACTIVE");
Serial.println("WiFi init...");
WiServer.init(NULL);
getEverDevice.setReturnFunc(printData);
delay(50);
}
void loop()
{
if(PIR_detected() && (detected))
{ // PIR : HIGH
getEverDevice.submit();
Serial.println("email sending");
}
// Run WiServer
WiServer.server_task();
delay(1000);
}
void printData(char* data, int len) {
while (len-- > 0) {
Serial.print(*(data++));
}
}
boolean PIR_detected()
{
boolean bPIR;
if(digitalRead(pirPin) == HIGH){
digitalWrite(ledPin, HIGH); //the led visualizes the sensors output pin state
detected = false;
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");
detected = true;
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;
}
------------------------------ End of Sketch --------------------------
Video here: http://youtu.be/kLGKAwNrjKk
More Video:
http://www.youtube.com/user/sinocgtchen
My Blog(DIY) :
http://sinocgtchen.blogspot.com
Motoduino information:
http://motoduino.com
My email : sinocgtchen@gmail.com
