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PIR Motion Detector With Arduino (simple and Easy Demostration)

in the following video we are going to see how we can integrate the passive infra red sensor or simply PIR sensor with an arduino uno board and how you can get serial data through it.the pir sensor basically works on the thermal radiation which are being emitted by the body of humans as well as animals

Step 1: WATCH THE VIDEO

 

Step 2: THINGS NEEDED (PARTS LIST)

 

https://cdn.instructables.com/FJS/BI10/J142GERP/FJSBI10J142GERP.LARGE.jpg
The parts needed for this build are given as
1.Arduino uno or clone
2.PIR Sensor
3.breadboard
4.led(any colour)
5.buzzer
so these are the simple parts which we need to gather

Step 3: PIR Sensor Small Information

 

Features and Electrical Specification
Compact size (28 x 38 mm)
Supply current: DC5V-20V(can design DC3V-24V)
Current drain :< 50uA (Other choice: DC0.8V-4.5V; Current drain: 1.5mA-0.1mA)
Voltage Output: High/Low level
signal ：3.3V (Other choice: Open-Collector Output) TTL output High sensitivity
Delay time：5s-18 minute
Blockade time：0.5s-50s (acquiescently 0 seconds)
Operation Temperature: -15oC -70Oc
Infrared sensor: dual element, low noise, high sensitivity
so these are the technical information about the pir sensor
you can download the datasheet from the following link
https://cdn-learn.adafruit.com/downloads/pdf/pir-p...

Step 4: CIRCUIT DIAGRAM

After watching the video you can easily create your own pir sensor module . just
follow the simple circuit and you are ready to go to the programming section
the buzzer used in the circuit is can be of normal 5v buzzer which is easily available
in any electronic parts store.
the connections follows as
ARDUINO UNO                           PIR SENSOR
+5V---------------------------------------+5V(VCC)
GND--------------------------------------GND
5 PIN-------------------------------------OUT

Step 5: PROGRAMMING THE ARDUINO

PROGRAMMING THE ARDUINO

The coding related to the following circuit is very simple the code follows in this way
At the starting we need to declare the pins which we are going to use
int PIR_output=5; // output of pir sensor
int led=13; // led pin
int buzzer=12;// buzzer pin
After that is done we can move on to the void setup fuction
pinMode(PIR_output, INPUT);// setting pir output as arduino input
pinMode(led, OUTPUT);//setting led as output
pinMode(buzzer, OUTPUT);//setting buzzer as output
Serial.begin(9600);//serial communication between arduino and pc
you can download the full program from above PIR_sensor_by_kj_electronics file
and upload it to the arduino uno by using the arduino ide

click here to download the code

Step 6: CHECKING THE OUTPUT

IMG_20170404_190653.jpg

Whenever a thermal body is detected by the PIR sensor it will turn the out pin to its high state
you can adjust the sensitivity of the sensor by adjusting the potentiometer which as shown in the figure above
and you can also change the time delay of the sensor by the potentiometer again.

Step 7: THANKS FOR WATCHING

You can modify the following code and make
something innovative and don't forgot to subscribe to my instructables as well as my youtube channel
in my youtube you can get so many projects in the electronics side as well as so creative videos about the leds and fan dc motors etc..
link to my youtube channel is
https://www.youtube.com/channel/UCZE35bOktFxu8dIad...
thanks for watching

 

 

 

 

 

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