Harish Projects

                                                  Click Here to watch video on YouTube ...........................................................................Diagram...................................................................  ................................................................. Arduino Car Code...........................................................  char t;   void setup() { pinMode(13,OUTPUT);   //left motors forward pinMode(12,OUTPUT);   //left motors reverse pinMode(11,OUTPUT);   //right motors forward pinMode(10,OUTPUT);   //right motors reverse pinMode(9,OUTPUT);   //Led Serial.begin(9600);   }   void loop() { if(Serial.available()){   t = Serial.read();   Serial.println(t); }   if(t == 'F'){            //move forward(all motors rotate in forward direction)   digitalWrite(13,HIGH);   digitalWrite(11,HIGH); }   else if(t == 'B'){      //move reverse (all motors rotate in reverse direction)   digitalWrite(12,HIGH);   digitalWrite(10,HIGH);

 Diagram 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); }

 Watch video on YouTube Click here -  https://youtu.be/TET7ZB5weYo Diagram  Arduino Code /*   code started   diy smart chocolate dustbin   #define led = D4;   #define trigger pin = D5;   #define echo pin = D6;   #define servo pin = D9;   #define servo pin2 =D10;   code created by technical ideas yt   https://youtube.com/c/TechnicalidEas07    */ #include <Servo.h>   Servo servo1;   Servo servo2;   int led=4;   int trig=5;   int echo=6;   int servo1_pin=9;   int servo2_pin=10;   int duration=0,dist=0;   void setup()   {     Serial.begin(9600);        pinMode(led,OUTPUT);   pinMode(trig,OUTPUT);   pinMode(echo,INPUT);     servo1.attach(servo1_pin);     servo2.attach(servo2_pin);     servo1.write(90);     servo2.write(90);   }     void loop()   {     digitalWrite(trig, HIGH);   delayMicroseconds(10);   digitalWrite(trig, LOW);   pinMode(echo, INPUT);   duration = pulseIn(echo, HIGH);   dist = (duration*0.034) / 2; //obtain distance     if(dist<20)   {     Serial.println("D