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experiment no.5

interfacing IR sensor with arduino and buzzer

block dig and discription

Block dig:

code

int irSensor = 12;
int buzzer = 7;
void setup()
{
  Serial.begin(9600);
  pinMode(irSensor, INPUT);
  pinMode(buzzer, OUTPUT);
}
void loop()
{
  int value = digitalRead(irSensor);
  Serial.println("");
  Serial.print("Sensor Value = ");
  Serial.print(value);
 
  if(value == 0)
  {
    digitalWrite(buzzer, HIGH);
  }
  else
  {
    digitalWrite(buzzer, LOW);
  }
  delay(50);
}


Experiment no : 6

interfacing 16*2 lcd with arduino board for display message or informtion

block dig :





Code:

//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

void setup()
{
  lcd.init();                      // initialize the lcd 
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(3,0);
  lcd.print("Hello, world!");
  lcd.setCursor(2,1);
  lcd.print("Ywrobot Arduino!");
   lcd.setCursor(0,2);
  lcd.print("Arduino LCM IIC 2004");
   lcd.setCursor(2,3);
  lcd.print("Power By Ec-yuan!");
}


void loop()
{
}

Experiment no 7:
dc motor spped control by PWM 

ciruit diG :




Code : 
//YouTube | Tech at Home

int in1=2;
int in2=3;
int en1=6;

void setup()
{
 pinMode(2,OUTPUT);
 pinMode(3,OUTPUT);
 pinMode(6,OUTPUT);
}

void loop()
{
  digitalWrite(in1,HIGH);
  digitalWrite(in2, LOW);
  analogWrite(en1,255);
  delay(100);
}




Experimernt no : 8
vidio link install raspbrri pi on diffrent oprating system we need three software
1.raspberii pi imager:

it used to get the os from desktop to the
cardreder and open it again and create one file
name ssh without any extention

2.putty:

puttty is used to create a ip address.
we just have to put the host name of the file.

3.vnc server:
copy the ip address from the putty and pest it to
the vnc server and you can see the new os infront of you.

Expriment no : 9

arduino with ldr 



code :

// A0:


// the setup routine runs once when you press reset:

void setup() {

  // initialize serial communication at 9600 bits per second:

  Serial.begin(9600);

}


// the loop routine runs over and over again forever:

void loop() {

  // read the input on analog pin A1:

  int sensorValue = analogRead(A1);

  // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):

  float voltage = sensorValue * (5.0 / 1024.0);


  // the lower the voltage, the brighter it is

  if ((voltage &gt;= 0) &amp;&amp; (voltage &lt;= 0.4)) {

    Serial.print ("it is light - ");

  } else if ((voltage &gt; 0.4) &amp;&amp; (voltage &lt;= 2)) {

    Serial.print ("it is bright - ");

  } else {

    Serial.print ("it is dark - ");

  }

  // print out the value you read:

  Serial.println(voltage);


// D0:


// when sensor pin D0 is connected, the sensor only knows the state light (0.14V) and dark (5.0V).

// The brightness at which the particular state is to be set can be set using the rotary potentiometer.


}



Experiment no : 10 
vidio link


you need bluthooth serial controoler in you pc 

code : 
//YouTube | Tech at Home

int led = 13;
int data;

void setup()
{
  Serial.begin(9600);
  pinMode(13, OUTPUT);
}

void loop()
{
  while(Serial.available() > 0)
  {
    data = Serial.read();
    Serial.println(data);
 
    if(data == 'A')
    {
      digitalWrite(13, HIGH);
    }
    if(data == 'B')
    {
      digitalWrite(13, LOW);
    }
   
  }
} Experiment 10 :LED bblinking




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