Harish Projects

 Watch Full Detailed Video //Arduino Code int IR1 = 8; int IR2 = 12; int IR3 = 13; int LDR = 7; int led1 = 3; int led2 = 5; int led3 = 6; int val1; int val2; int val3; int val4; void setup() { pinMode(IR1,INPUT); pinMode(IR2,INPUT); pinMode(IR3,INPUT); pinMode(LDR,INPUT); pinMode(led1,OUTPUT); pinMode(led2,OUTPUT); pinMode(led3,OUTPUT); } void loop() { val1 = digitalRead(IR1); val2 = digitalRead(IR2); val3 = digitalRead(IR3); val4 = digitalRead(LDR); if(val1==1&&val4==0&&val2==1&&val3==1) { digitalWrite(3,LOW); digitalWrite(5,LOW); digitalWrite(6,LOW); } else if(val1==1&&val4==1&&val2==1&&val3==1) { analogWrite(3,20); analogWrite(5,20); analogWrite(6,20); } else if(val1==0&&val4==1&&val2==1&&val3==1) { analogWrite(3,500); analogWrite(5,20); analogWrite(6,20); } else if(val1==1&&val4==1&&val2==0&&val3==1) { analogWrite(3,20); analogWrite(5,500); analogWrite(6,20); } else if(val1==1&&v

.....Project Diagram..... //....Arduino Code.... /* YF‐ S201 Water Flow Sensor Water Flow Sensor output processed to read in litres/hour Adaptation Courtesy: */ volatile int flow_frequency; // Measures flow sensor pulses // Calculated litres/hour   float vol = 0.0 ,l_minute; unsigned char flowsensor = 2 ; // Sensor Input unsigned long currentTime; unsigned long cloopTime; #include <LiquidCrystal.h> LiquidCrystal lcd ( 12 , 11 , 5 , 4 , 3 , 9 ) ; void flow () // Interrupt function {    flow_frequency++; } void setup () {     pinMode ( flowsensor, INPUT ) ;     digitalWrite ( flowsensor, HIGH ) ; // Optional Internal Pull-Up     Serial . begin ( 9600 ) ;     lcd . begin ( 16 , 2 ) ;     attachInterrupt ( digitalPinToInterrupt ( flowsensor ) , flow, RISING ) ; // Setup Interrupt     lcd . clear () ;     lcd . setCursor ( 0 , 0 ) ;     lcd . print ( "Petrol Flow Meter" ) ;     lcd . setCursor ( 0 , 1 ) ;     lcd . print ( "Harish Projects" ) ;  

 Watch Full Making video on Youtube. //........Arduino Code......... #define buzzer 6 void setup () { pinMode ( 12 ,OUTPUT); //Trigger pinMode ( 13 ,INPUT); //EchoA pinMode ( 6 ,OUTPUT); //Buzzer } void loop () { long duration, distance; digitalWrite ( 12 ,LOW); delayMicroseconds ( 2 ); digitalWrite ( 12 ,HIGH); delayMicroseconds ( 10 ); digitalWrite ( 12 ,LOW); duration= pulseIn ( 13 ,HIGH); distance=(duration/ 2 )/ 29.1 ; if (distance < 70 )     // This is where checking the distance you can change the value {  // When the the distance below 100cm digitalWrite ( 6 ,HIGH); } else { // when greater than 100cm digitalWrite ( 6 ,LOW); } delay ( 500 ); }

... Project Diagram... Watch Full Detailed Video Part - 1 for Engine Part - 2 for Platform Buy Full Project kit  Click Here -  https://harishprojects.com/product/train-accident-prevention-2-train-in-same-track-best-science-project-kit/

....Watch Full Detailed video....  //Arduino code// /*     1.  If an object is detected, turn the        servo motor 10 degrees     2.  If there is no object detected,        turn the servo motor 150 degrees   */   #include <Servo.h>   Servo Serv;   int pinIR=3;   int pinServo=5;   int val=0;   void setup(){     Serv.attach(pinServo);   }   void loop(){     val = digitalRead(pinIR);        if (val ==0){       Serv.write(95);       delay(100);     }     else     {       Serv.write(10);       delay(100);     }   } //You can order Project kit from us. Contact:-  WP - 8602221288 Instagram -  https://www.instagram.com/harishchoudhary70/reels/?hl=en

  First watch this full video. only then. Start making this project.  //Arduino Code// #include <LiquidCrystal.h> char str [ 34 ], L = 2 ; int draft = 0 , i = 0 ; int Pass = 0 , p = 0 ; int c , x , d ; LiquidCrystal lcd ( 11 , 10 , 5 , 4 , 3 , 2 ); void setup () { Serial . begin ( 9600 ); pinMode ( 7 , OUTPUT ); lcd . begin ( 16 , 2 ); } void loop () { if ( draft == 1 ) { check (); draft = 0 ; i = 0 ; delay ( 1000 ); } } void serialEvent () { while ( Serial . available ()) { char inChar = Serial . read (); str [ i ++ ] = inChar ; delay ( 10 ); } for ( p = i + 1 ; p < 34 ; p ++ ) { str [ i ++ ] = 32 ; } draft = 1 ; Serial . write ( str ); lcd . setCursor ( 0 , 0 ); lcd . print ( str ); if ( i > 16 ) { d = 16 ; for ( x = 0 ; x <= 17 ; x ++ ) { lcd . setCursor ( x , 2 ); lcd