#include <Servo.h> 
Servo Myservo; int 
pos; 
void setup() { 
 Myservo.attach(3); 
 Serial.begin(9600); 
} 
void loop() { for (pos = 0; pos <= 180; 
pos++) { Myservo.write(pos); 
 delay(5); 
 } 
 delay(1); 
 for (pos = 180; pos >= 0; pos--) { 
Myservo.write(pos); delay(5); 
 } 
 delay(1); 
} 
To rotate the servo motor from 0° to 180° and in reverse in step of 30° 
#include <Servo.h> Servo 
Myservo; 
int pos; 
void setup() { 
 Myservo.attach(3); 
 Serial.begin(9600); 
} 
void loop() { 
 for (pos = 0; pos <= 180; pos += 90) { 
 Serial.println(pos); 
Myservo.write(pos); delay(1000); 
 } 
 delay(1000); 
 for (pos = 180; pos >= 0; pos -= 90) { 
 Serial.println(pos); 
 Myservo.write(pos); 
 delay(1000); 
 } 
 delay(1000); 
} 
//To rotate the servo motor from 0° to 180° and in reverse with increasing speed from 0° 
//to 60° , constant speed between 61° to 120°, decreasing speed from 121° to 180° and 
//constant speed from 180° to 0° 
#include <Servo.h> 
Servo Myservo; int 
pos; int d = 310; 
void setup() { 
 Myservo.attach(3); 
 Serial.begin(9600); 
} 
void loop() { d = 310; for (int pos = 0; pos < 60; 
pos += 1, d -= 5) { 
 Myservo.write(pos); 
 Serial.print(pos); 
 Serial.print(": "); 
Serial.println(d); delay(d); 
 } 
 for (int pos = 60; pos < 120; pos += 1) { 
 Myservo.write(pos); 
 Serial.print(pos); 
 Serial.print(": "); 
Serial.println(d); delay(d); 
 } 
 for (int pos = 120; pos < 180; pos += 1, d += 5) { 
 Myservo.write(pos); 
 Serial.print(pos); 
 Serial.print(": "); 
Serial.println(d); delay(d); 
 } 
 d = d / 10; for (int pos = 180; pos > 0; pos -
= 1) { 
 Myservo.write(pos); 
 Serial.print(pos); 
 Serial.print(": "); 
Serial.println(d); delay(d); 
 } 
} 
//Using servo motors to implement sorting technology. Take shift degree = 45 and total 5 
//different sections 
#include <Servo.h> 
Servo Myservo; int 
pos; 
int green = 0; int 
red = 0; int yellow 
= 0; int pink = 0; 
int white = 0; int 
current = 0; int 
shift_by = 45; 
void setup() { 
 Myservo.attach(3); 
 Serial.begin(9600); 
 Serial.println("G R Y P W"); 
} 
void loop() { current = 
random(0, 5); 
 Myservo.write(shift_by * current); if 
(current == 0) { green += 1; 
 Serial.print("green "); } 
else if (current == 1) { red 
+= 1; 
 Serial.print("red "); } 
else if (current == 2) { 
yellow += 1; 
 Serial.print("yellow "); } 
else if (current == 3) { pink 
+= 1; 
 Serial.print("pink "); } 
else if (current == 4) { 
white += 1; 
 Serial.print("white "); 
 } 
 Serial.print(" "); 
 if (green < 10) Serial.print(" "); 
 Serial.print(green); Serial.write(" "); 
 if (red < 10) Serial.print(" "); 
 Serial.print(red); Serial.write(" "); 
if (yellow < 10) Serial.print(" "); 
 Serial.print(yellow); Serial.write(" "); 
 if (pink < 10) Serial.print(" "); 
 Serial.print(pink); Serial.write(" "); 
 if (white < 10) Serial.print(" "); 
 Serial.print(white); 
 Serial.write(" "); Serial.println(); 
delay(1000); 
} 
//To rotate the servo motor as per user input and relative to its previous position 
#include <Servo.h> 
Servo Myservo; int 
pos; 
int curr_pos = 0; 
void setup() { 
 Myservo.attach(3); 
 Serial.begin(9600); 
} 
void loop() { while 
(Serial.available()) { int val = 
Serial.parseInt(); curr_pos += 
val; curr_pos %= 180; 
 Serial.println(curr_pos); 
 Myservo.write(curr_pos); 
 } 
}