Well, there are other high-end servos with a bit more muscle than the SG90 servo, but these high-end servos can’t beat the price of the SG90 servo. All these specifications are really impressive for this little plastic box. At 4.8V, the speed of the servo is 0.12 sec/60°. You need torque to control the position of an object, for example, and this little box that weight 0.32 oz (9.0 g) can provide at 4.8V a torque of 25.0 oz-in (1.80 kg-cm). Let’s make a short overview of the SG90 specifications. ![]() Even it’s cheap, less than $5, don’t try to rotate the servo motor by hand because this may damage the motor. The Tower Pro SG90 servo is one of the cheapest servo motors that you can find on the market. 1 x TowerPro SG90 servo motor (price ~$5).To control the TowerPro SG90 servo, you will need the following parts: Luckily, all the components are cheap and available worldwide. This is not a complex project, but we still need some parts. I’m just asking – why we need a servo motor? These servos are essential parts if we need to control the position of objects, rotate sensors, move arms and legs, drive wheels and tracks, and more. It’s a dedicated controller that makes the tiny things inside the servo to move with military precision.Ī feedback sensor, a controller, and a motor. But even so, there is something more sophisticated that controls all the stages of the servo motor. This sensor sounds the alarm when the motor is spinning. This very strict control of the angular position, velocity, and acceleration can’t be done without a sensor for position feedback. You control precisely the speed of the car and the direction. It’s like you’re at the steering wheel of your car. Finally, I went to the practice part to show you how to wire TowerPro SG90, writes the Arduino sketch, and some hacks for the servo motor.Ī servo motor allows a precise control of the angular position, velocity, and acceleration.I break down into components the servo motor to show you the parts.Then I did an overview of the Tower Pro SG90 servo.I start the tutorial with a short overview of the parts needed to control the servo motor.Even so, if this tutorial is boring for you, here is a list of cheap projects for Arduino UNO. I know that if you’re a hobbyist with some experience in robots is very easy to control this servo motor, but like always, you couldn’t miss anything in the field. I write this tutorial to show you how to control the direction, position, and speed of the SG90 9G Micro servo motor with the Arduino UNO board. Myservo.Tutorial: How To Control the Tower Pro SG90 Servo with Arduino UNO Int pos = 0 //Posición inicial del servo SG90 To see the example source code, which you can try and modify as you please, you have both your own examples that you can see in the IDE with the Servo.h library, like this other one: PPM signal: can go to any of the PWM pins on the Arduino. ![]() GND: You can connect it to the GND of the Arduino board. ![]() If you are going to use several power supplies, remember to always put the ground or GND in common to avoid problems. ![]()
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