7 segment display Arduino code

 ULTRASONIC SENSOR #include <Servo.h> #define speedPinR 9   //  RIGHT WHEEL PWM pin D45 connect front MODEL-X ENA  #define RightMotorDirPin1  22    //Front Right Motor direction pin 1 to Front MODEL-X IN1  (K1) #define RightMotorDirPin2  24   //Front Right Motor direction pin 2 to Front MODEL-X IN2   (K1)                                  #define LeftMotorDirPin1  26    //Left front Motor direction pin 1 to Front MODEL-X IN3 (  K3) #define LeftMotorDirPin2  28   //Left front Motor direction pin 2 to Front MODEL-X IN4 (  K3) #define speedPinL 10   // Left WHEEL PWM pin D7 connect front MODEL-X ENB #define speedPinRB 11   //  RIGHT WHEEL PWM pin connect Back MODEL-X ENA  #define RightMotorDirPin1B  5    //Rear Right Motor direction pin 1 to Back MODEL-X IN1 (  K1) #define RightMotorDirPin2B 6    //Rear Right Motor direction pin 2 to Back MODEL-X IN2 (  K1)  #define LeftMotorDirPin1B 7    //Rear left Motor direction pin 1 to Back MODEL-X IN3  K3 #define LeftMotorDirPin2B 8  //Rear le

 JugueBot Car Movement #define SPEED 100     #define TURN_SPEED 100     #define speedPinR 9   //  Front Wheel PWM pin connect Right MODEL-X ENA  #define RightMotorDirPin1  22    //Front Right Motor direction pin 1 to Right MODEL-X IN1  (K1) #define RightMotorDirPin2  24   //Front Right Motor direction pin 2 to Right MODEL-X IN2   (K1)                                  #define LeftMotorDirPin1  26    //Front Left Motor direction pin 1 to Right MODEL-X IN3 (K3) #define LeftMotorDirPin2  28   //Front Left Motor direction pin 2 to Right MODEL-X IN4 (K3) #define speedPinL 10   //  Front Wheel PWM pin connect Right MODEL-X ENB #define speedPinRB 11   //  Rear Wheel PWM pin connect Left MODEL-X ENA  #define RightMotorDirPin1B  5    //Rear Right Motor direction pin 1 to Left  MODEL-X IN1 ( K1) #define RightMotorDirPin2B 6    //Rear Right Motor direction pin 2 to Left  MODEL-X IN2 ( K1)  #define LeftMotorDirPin1B 7    //Rear Left Motor direction pin 1 to Left  MODEL-X IN3  (K3) #define LeftMotor

 JugueBot Code Wheel Encoders  #define outputA 6  #define outputB 7  int counter = 0;   int aState;  int aLastState;    void setup() {     pinMode (outputA,INPUT);    pinMode (outputB,INPUT);        Serial.begin (9600);    // Reads the initial state of the outputA    aLastState = digitalRead(outputA);     }   void loop() {     aState = digitalRead(outputA); // Reads the "current" state of the outputA    // If the previous and the current state of the outputA are different, that means a Pulse has occured    if (aState != aLastState){           // If the outputB state is different to the outputA state, that means the encoder is rotating clockwise      if (digitalRead(outputB) != aState) {         counter ++;      } else {        counter --;      }      Serial.print("Position: ");      Serial.println(counter);    }     aLastState = aState; // Updates the previous state of the outputA with the current state  }

 Larson Scanner

 Ultra Sonic Sensor Code int trigPin = 12; /* Trig pin of the sensor is connected to the 6th pin of Arduino */ int echoPin = 11;  /* The echo pin of the sensor is connected to the 7th Pin of the Arduino */ long Duration; //Duration   long Distance; //Distance   int leftMotor_1=3;  //motor 1 the first data entry is HIGH OR LOW int leftMotor_2=2;  //motor 1 the second data entry is HIGH OR LOW int rightMotor_1=4; //motor 2 the first data entry is HIGH OR LOW int rightMotor_2=5; //motor 2 the second data entry is HIGH OR LOW int leftMotor_pwm=6;  // motor 1 Speed ​​control is done with pwm input for                       // 0-255 analog PWM signal is sent in range int rightMotor_pwm=9; // motor 2 Speed ​​control is done with pwm input for                        // 0-255 analog PWM signal is sent in range void setup() {   for(int i=2;i<=9;i++){    pinMode(i, OUTPUT);}  //2-9 No ports are set as outputs   pinMode(trigPin,OUTPUT);   pinMode(echoPin,INPUT);      Serial.begin(9600); // loca

 IR Car Remote Code #include <IRremote.h> int RECV_PIN = 11; IRrecv myIrrecv(RECV_PIN); decode_results results; //Init Motors const int PWM_M1 = 5; const int IN1_M1 = 2; const int IN2_M1 = 3; const int PWM_M2 = 6; const int IN1_M2 = 8; const int IN2_M2 = 9; int speed = 100; void setup(){   Serial.begin(9600);   myIrrecv.enableIRIn();      pinMode(PWM_M1,OUTPUT);   pinMode(PWM_M2,OUTPUT);      pinMode(IN1_M1,OUTPUT);   pinMode(IN2_M1,OUTPUT);      pinMode(IN1_M2,OUTPUT);   pinMode(IN2_M2,OUTPUT); } void loop(){   if (myIrrecv.decode(&results)){                 switch(results.value){           case 0xFD00FF: //power           break;           case 0xFD807F://vol+             forward();           break;           case 0xFD40BF://func/stop           break;           case 0xFD20DF://|<<             turnLeft();           break;           case 0xFDA05F://>||             stop();           break ;             case 0xFD609F://>>|            turnRight();           break ;