PIR Motion Detector With Arduino (simple and Easy Demostration)| With full code
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 seral data through it.the pir sensor basically works on the thermal radiation which are being emitted by the body of humans as wellas animals
Step 1: WATCH THE VIDEO
Step 2: THINGS NEEDED (PARTS LIST)
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: 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 4: 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
and upload it to the arduino uno by using the arduino ide
Whenever a thermal body is detected by the PIR sensor it will turn the out pin to its high state.
Step 5: THANKS FOR WATCHING
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.
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Vibhas Mahaldar