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CODE: Arduino Controlled Motion Sensor
Arduino Controlled Motion Sensor:
Parallax Sensor Code:
/*
Arduino Controlled Passive Infrared Motion Sensor
LemonSlice7 – Instructables.com
*/
int calibrationTime = 30;
boolean sensorActive = false;
boolean previousSensorState = false;
int pirPin = 4; //the digital pin connected to the PIR sensor’s output
int ledPin = 5;
// setup phase
void setup(){
Serial.begin(9600);
pinMode(pirPin, INPUT);
pinMode(ledPin, OUTPUT);
digitalWrite(pirPin, LOW);
//give the sensor some time to calibrate
Serial.println(“Sensor Calibration in Progress”);
Serial.println(“———————————————”);
for(int i = 0; i < calibrationTime; i++){
Serial.print(“.”);
digitalWrite(ledPin, HIGH);
delay(250);
digitalWrite(ledPin, LOW);
delay(250);
digitalWrite(ledPin, HIGH);
delay(250);
digitalWrite(ledPin, LOW);
delay(250);
}
Serial.println(“”);
Serial.println(“Sensor Calibration Completed”);
Serial.println(“Sensor Reading Active”);
delay(50);
sensorActive = false;
previousSensorState = false;
}
// loop sequence
void loop()
{
// takes the pin value and saves it to the sensorActive boolean value
if(digitalRead(pirPin) == HIGH)
{
sensorActive = true;
digitalWrite(ledPin, HIGH);
}
if(digitalRead(pirPin) == LOW)
{
sensorActive = false;
digitalWrite(ledPin, LOW);
}
// performs action if the state of the sensor changes
// since this is a loop, here is now it works:
// if the sensor pin goes HIGH (on) after it being LOW (off), the sensorActive value changes from the previousSensorState value.
// it then turns on the LED. when the pin goes LOW (off) it will do the same thing but opposite values.
// it also prints status to serial. it will print the time of triggering by providing the number of seconds that have passed since the program started.
if(sensorActive != previousSensorState)
{
if(sensorActive == true)
{
previousSensorState = sensorActive;
Serial.println(“—-“);
Serial.print(“Motion Detected At: “);
Serial.print(millis()/1000);
Serial.println(” Seconds”);
delay(50);
}
if(sensorActive == false)
{
previousSensorState = sensorActive;
Serial.println(“—-“);
Serial.print(“Motion Stopped At: “);
Serial.print(millis()/1000);
Serial.println(” Seconds”);
delay(50);
}
}
}
PIR Sensor Code V2:
/*
Arduino Liquid Crystal Circuit
*LCD RS pin to pin
*LCD R/W pin to Ground
*LCD Enable pin to pin
*LCD D4 pin to pin
*LCD D5 pin to pin
*LCD D6 pin to pin
*LCD D7 pin to pin
*Backlight Circuit
[5v Supply -> 330Ω resistor -> Backlight Positive Pin]
[Backlight Ground Pin -> NPN Collector]
[NPN Emitter -> Ground]
[NPN Base to pin]
*10kΩ potentiometer wiper to VO pin 0 of LCD
LiquidCrystal lcd(RSpin, enablePin, D4pin, D5pin, D6pin, D7pin);
*/
//include the Arduino LiquidCrystal Library
#include <LiquidCrystal.h>
//initializes library with these interface pins
boolean sensorActive = false;
boolean previousSensorState = false;
int pirPin = 3;
int RSpin = 4;
int enablePin = 5;
int D4pin = 6;
int D5pin = 7;
int D6pin = 8;
int D7pin = 9;
int lightLCD = 10;
int serialVal1 = 0;
int unsigned long lastMillis = 0;
LiquidCrystal lcd(RSpin, enablePin, D4pin, D5pin, D6pin, D7pin);
void initializeLCD()
{
digitalWrite(lightLCD,HIGH);
lcd.setCursor(0, 0);
lcd.print(“ Arduino LCD Test “);
lcd.setCursor(0, 2);
lcd.print(“ Please Wait… “);
delay(1000);
cycleLCD();
lcd.clear();
}
void initializePIR()
{
lcd.setCursor(0,3);
lcd.setCursor(0, 0);
lcd.print(“Initializing”);
lcd.setCursor(0,1);
lcd.print(“PIR Sensor Module”);
lcd.setCursor(0,3);
for (int i=0; i < 20; i++)
{
lcd.write(0);
delay(1500); // default 1500ms
}
delay(1000);
lcd.clear();
}
void createCharLCD()
{
byte block[8] = {
B11111,
B11111,
B11111,
B11111,
B11111,
B11111,
B11111,
B11111,
};
lcd.createChar(0, block);
}
void lcdReset()
{
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(“Awaiting Input “);
}
void cycleLCD()
{
lcd.setCursor(0,0);
for (int i=0; i <= 80; i = i + 1)
{
lcd.write(0);
delay(10);
}
lcd.setCursor(0,0);
for (int i=0; i <= 80; i = i + 1)
{
lcd.print(” “);
delay(10);
}
}
void setup()
{
Serial.begin(9600);
pinMode(lightLCD, OUTPUT);
lcd.begin(20, 4); //setup LCD as a 20×4 layout
pinMode(pirPin, INPUT);
createCharLCD();
initializeLCD();
initializePIR();
lastMillis = millis();
}
void loop()
{
lcd.setCursor(0, 0);
lcd.print(“Arduino PIR Sensor”);
if(digitalRead(pirPin) == HIGH)
{
sensorActive = true;
}
if(digitalRead(pirPin) == LOW)
{
sensorActive = false;
}
// performs action if the state of the sensor changes
// since this is a loop, here is now it works:
// if the sensor pin goes HIGH (on) after it being LOW (off), the sensorActive value changes from the previousSensorState value.
// it then turns on the LED. when the pin goes LOW (off) it will do the same thing but opposite values.
// it also prints status to serial. it will print the time of triggering by providing the number of seconds that have passed since th
// program started.
if(sensorActive != previousSensorState)
{
if(sensorActive == true)
{
previousSensorState = sensorActive;
lcd.setCursor(0, 2);
lcd.print(“Motion Detected At: “);
lcd.setCursor(0, 3);
lcd.print(millis()/1000);
lcd.print(” Seconds”);
Serial.print(“Motion Detected At: “);
Serial.print(millis()/1000);
Serial.println(” Seconds”);
delay(50);
}
if(sensorActive == false)
{
previousSensorState = sensorActive;
lcd.setCursor(0, 2);
lcd.print(“Motion Stopped At: “);
lcd.setCursor(0, 3);
lcd.print(millis()/1000);
lcd.print(” Seconds”);
Serial.print(“Motion Stopped At: “);
Serial.print(millis()/1000);
Serial.println(” Seconds”);
delay(50);
}
}
}
-END CODE-
Reference Source:
http://arduinotronics.blogspot.com/2013/01/motion-sensors-ssrs.html
http://www.instructables.com/id/DIY-Arduino-Motion-Sensor-Lighting-Control/