Arduino tutorial 

#include <Servo.h>

Servo servo;

int trig = 5;

int echo = 6;

int servoPin = 7;

long duration, distance, average;

long aver[3];

void setup () {

Serial.begin(9600);

servo.attach(servoPin);

pinMode(trig, OUTPUT);

pinMode(echo, INPUT);

servo.write(0);

delay(100);

servo.detach();

}

void measure () {

digitalWrite (trig,LOW);

delayMicroseconds(5);

digitalWrite (trig, HIGH);

delayMicroseconds (15);

digitalWrite (trig, LOW);

pinMode (echo, INPUT);

duration = pulseIn(echo, HIGH);

distance = (duration/2)/29.1;

}

void loop () {

Serial.println(distance);

for(int i= 0 ; i<=2 ; i++) {

measure ();

aver[i] = distance;

delayMicroseconds (10);

}

distance = (aver[0] + aver[1] + aver[2])/3;

if (distance <=20){

servo.attach(servoPin);

delayMicroseconds (1);

servo.write(0);

delayMicroseconds (3500);

servo.write(180);

delayMicroseconds (1500);

delayMicroseconds (1500);

}          //Failure is a hit

}         //and trial method of sucess

//This code is designed by Sumit Kumar 

char BluetoothData;

void setup () {

Serial.begin(9600);

pinMode(5, OUTPUT);

pinMode(6, OUTPUT);

pinMode(7, OUTPUT);

digitalWrite(5, 0);

digitalWrite(6, 0);

digitalWrite(7, 0);

}

void loop () {

if (Serial.available()){

BluetoothData = Serial.read();

if (BluetoothData =='X'){

digitalWrite(5, 1);

}

if (BluetoothData =='Y'){

digitalWrite(6, 1);

}

if (BluetoothData =='Z'){

digitalWrite(7, 1);

}

if (BluetoothData =='x' || BluetoothData =='y' || BluetoothData =='z'){

digitalWrite(5, 0);

digitalWrite(6, 0);

digitalWrite(7, 0);

}

}

delay (10);

} //For writing a whole code just try to make few changes in other's code

//Designed by Sumit Kumar

#include <Servo.h>

Servo servo1;

Servo servo2;

int x_key = A1;

int y_key = A0;

int x_pos;

int y_pos;

int servo1_pin = 8;

int servo2_pin = 9;

int initial_position = 90;

int initial_position1 = 90;

int speed = 2;

void setup ( ) {

Serial.begin (9600) ;

servo1.attach (servo1_pin ) ;

servo2.attach (servo2_pin ) ;

servo1.write (initial_position);

servo2.write (initial_position1);

pinMode (x_key, INPUT) ;

pinMode (y_key, INPUT) ;

}

void loop ( ) {

x_pos = analogRead (x_key) ;

y_pos = analogRead (y_key) ;

if (x_pos < 300){

if (initial_position < 10) { }

else{ initial_position = initial_position - speed;

servo1.write ( initial_position ) ;

delay (100) ;

}

}

if (x_pos > 700){

if (initial_position > 180) { }

else{ initial_position = initial_position + speed;

servo1.write ( initial_position ) ;

delay (100) ;

}

}

if (y_pos < 300){

if (initial_position1 < 10) { }

else{ initial_position1 = initial_position1 - speed;

servo2.write ( initial_position1 ) ;

delay (100) ;

}

}

if (y_pos > 700){

if (initial_position1 > 180) { }

else{ initial_position1 = initial_position1 + speed;

servo2.write ( initial_position1 ) ;

delay (100) ;

}

}

}

//This code is written by Sumit Kumar

//Think, Try and Become Trand