Experiment Two—PIR Motion Sensor

This experiment is for catching the motion of moving objects, such as man body or animals. It is useful for controlling the entity/organism in flash. It is easy to install and use. The code how to interact with flash needs to be wrote late.

1.  Hardware Requirements:

2. Sample code in Arduino:

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int ledPin = 13;                 // LED connected to digital pin 13
int sensor = 2;
int val = 0;

void setup()
{
pinMode(ledPin, OUTPUT);      // sets the digital pin as output
pinMode(sensor, INPUT);       // sets the digital pin as input
}

void loop()
{
val = digitalRead(sensor);   // read the input pin
if(HIGH == val)
digitalWrite(ledPin,HIGH);   // sets the LED to the high
else
digitalWrite(ledPin,LOW);    // sets the LED to the low
}

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2. PIR Motion Sensor (face): Module SE-10

Red wire is power (5 to 12V). Brown wire is GND. Black wire is open collector Alarm.

3. PIR Motion Sensor (back): it bought from Mindkits

4. Installation:

More info:

1. http://itp.nyu.edu/physcomp/sensors/Reports/PassiveInfraRedSensor

2. http://itp.nyu.edu/physcomp/sensors/Reports/PIRMotionSensor