سروو موتور SG90

Tiny and lightweight with high output power.
Servo can rotate approximately 180 degrees (90 in each direction), and works just like the standard kinds but smaller.
You can use any servo code, hardware or library to control these servos.
Good for beginners who want to make stuff move without building a motor controller with feedback & gear box, especially since it will fit in small places.
It comes with a 3 horns (arms) and hardware.
Position “0” (1.5 ms pulse) is middle, “90” (~2ms pulse) is middle, is all the way to the right, “-90” (~1ms pulse) is all the way to the left.
Features
Product size: 23×12.2x29mm
Product torque: 1.6kg/cm(4.8V)
Reaction speed: 0.1 SEC /60degree(4.8v)
Working voltage: 4.8V
Service temperature: 0-55 degrees
Action dead zone: 10US
Gear medium: nylon
Working mode: simulation
Operating torque 1.6kg/cm
reaction speed 0.12-0.13sec /60.
Using temperature 30 ℃ + 60 ℃
Application
Fixed wing, kt helicopter, glide, small robot manipulator and other models

Example
Controlling servos on Arduino is very simple, since the Standard IDE provides the “servo.h” library, which allows you to simultaneously control up to 12 servos on Arduino Uno/Nano and up to 48 servos on Arduino Mega.
Among the typical examples to illustrate the operation of servos we have the Sketch “Sweep”, which performs a continuous sweep with the servo.
To do this, it increases the angle from 0 to 180º at a rate of 1º every 15ms, then performs the opposite operation from 180º to 0º, to finally restart the loop.

#include <Servo.h>

Servo myservo;  // crea el objeto servo

int pos = 0;    // posicion del servo

void setup() {
  myservo.attach(9);  // vincula el servo al pin digital 9
}

void loop() {
  //varia la posicion de 0 a 180, con esperas de 15ms
  for (pos = 0; pos <= 180; pos += 1) 
  {
    myservo.write(pos);              
    delay(15);                       
  }

  //varia la posicion de 180 a 0, con esperas de 15ms
  for (pos = 180; pos >= 0; pos -= 1) 
  {
    myservo.write(pos);              
    delay(15);                       
  }
}