DIY home burglar alarm device design (graphic / code)

My basic idea is to use the Arduino LilyPad real-time sensor and the human body's infrared sensor module to signal the active buzzer module after a trigger signal.

Something used:

Arduino LilyPad Board 1

Vibration sensor 1

Human body infrared sensor module 1

Active buzzer module 1

White luminous tube 1

Blue luminous tube 1

Push button switch 1

USB to TTL board 1

Charging treasure 1

The program has been modified several times. The current calculation is stereotyped. The trigger signal of the vibration sensor is detected, and the delay is 5 seconds. The buzzer emits a frequency alarm sound, and the white LED emits light.

The trigger signal of the human body infrared sensing module is detected, the delay is 5 seconds, the buzzer emits the second kind of frequency alarm sound, and the blue light emitting tube emits light; the trigger signal of the human body infrared sensing module and the trigger signal of the vibration sensor are detected, After a delay of 5 seconds, the buzzer emits a third kind of frequency alarm sound, and the blue light tube and the white light tube emit light; the delay of 5 seconds is convenient for the owner to open the door to close the alarm; once the sound and light alarm triggers, the cycle will not stop. Unless the owner turns off the power or the charging battery is not enough.

The following is a physical photo:

Code:

Int bjbz1=0;

Int bjbz2=0;

Int bjbz3=0;

Unsigned char state = 0;

Unsigned char i,j,m;

Void setup()

{

pinMode (7, INPUT); / / 7 foot connected SR501 human body infrared pyroelectric sensor output

pinMode (10, OUTPUT); / /10 foot connected to the light tube blue input

pinMode (2, INPUT); / / 2 foot connected to the vibration sensor output

pinMode (11, OUTPUT); / / 11 foot connected to the light tube white input

attachInterrupt(0, blink, FALLING);//D2 port is external interrupt 0, call the bring function when there is a falling edge trigger

pinMode (9, OUTPUT); / / 9 foot connected active buzzer module input

Serial.begin(9600);

}

Void loop()

{

If ((state!=0) && (bjbz1==0)&&(digitalRead(7)==0))

{ Serial.println("zheng dong ok");

State = 0;

Delay(5000);

digitalWrite(11,HIGH);

Alarm1();

Delay(3000);

noTone(9);

Bjbz1=1;

}

Else

{ noTone(9);

digitalWrite(11,LOW);

Bjbz1=0;

}

If ((digitalRead(7)==1)&& (bjbz2==0) )

{

Serial.println("hongwai ok");

If (bjbz2==0)

Delay(5000);

digitalWrite(10,HIGH);

Alarm2() ;

Delay(3000);

noTone(9);

Bjbz2=1;

} else

{

noTone(9);

digitalWrite(10,LOW);

Bjbz2=0;

}

If ((state!=0) && (bjbz3==0)&&(digitalRead(7)==1))

{

Serial.println("zheng dong and hongwai ok");

If (bjbz3==0)

Delay(5000);

digitalWrite(11,HIGH);

digitalWrite(10,HIGH);

Alarm3() ;

Delay(3000);

noTone(9);

Bjbz3=1;

}

Else

{ noTone(9);

digitalWrite(10,LOW);

digitalWrite(11,LOW);

Bjbz3=0;

}

}

Void blink()// Digital input sensor falling edge trigger interrupt service function

{

State++;

}

Void Alarm1()

{

While(bjbz1==0)

{

For(int i=100;i"800;i++)

{

Tone(9,i);

Delay(5);

}

Delay(5000);

For(int i=800;i"=200;i--)

{tone(9,i);

Delay(5);

}

Delay(2000);

}

}

Void Alarm2()

{

While(bjbz2==0)

{

For(int j=700;j“=1500; j++)

{

Tone(9,j);

Delay(5);

}

Delay(4000);

For(int j=1500;j"=700;j--)

{

Tone(9,j);

Delay(5);

}

Delay(2000);

}

}

Void Alarm3()

{

While(bjbz3==0)

{

For(int m=400;m“=1400;m++)

{

Tone(9,m);

Delay(5);

}

Delay(5000);

For(int m=1400;m》=400;m--)

{

Tone(9,m);

Delay(5);

}

Delay(2000);

}

}