SG90 Servo Motor 9g Micro Servo 180° (TowerPro) - Robocraze

Package Includes:

• 1 x SG90 Micro Servo Motor

TowerPro SG90 9g Servo Motor Specifications:

Model	SG90
Operating Voltage (VDC)	3.0 ~ 7.2
Operating Speed (4.8V)	0.10sec/60°
Dimensions	22.8 x 12.6 x 34.5
Weight(gm)	9

• Datasheet

SG90 Arduino Code Example:

#include <Servo.h>

Servo myServo;  // Create servo object

const int servoPin = 9;

void setup() {

  myServo.attach(servoPin);  // Connect servo to pin 9

  delay(100);  // Short delay for servo to initialize

}

void loop() {

  myServo.write(0);    // Move to 0 degrees

  delay(1000);         // Wait 1 second

  myServo.write(90);   // Move to center (90 degrees)

  delay(1000);         // Wait 1 second

  myServo.write(180);  // Move to 180 degrees  

  delay(1000);         // Wait 1 second

}

What is the SG90 Micro Servo Motor used for?

The SG90 is a compact servo motor commonly used in Arduino projects, robotics, RC models, automation, CNC projects, and DIY electronics where controlled rotational movement is required.

How much does the SG90 servo motor rotate?

The SG90 typically provides approximately 180° of rotation, with around 90° of movement in each direction from its center position.

What is the torque of the SG90 servo motor?

The specified SG90 provides approximately 1.2 kg-cm torque. Actual load capacity depends on the lever arm length, operating voltage, servo condition, and application.

How do I connect the SG90 servo motor to Arduino?

Connect the red wire to 5V, brown wire to GND, and orange signal wire to a suitable PWM-capable digital pin. For multiple servos or higher loads, use an appropriate external power supply.

What voltage does the SG90 servo motor use?

The SG90 is commonly operated around 4.8V–6V. Always verify the specific servo's rated operating voltage before connecting it to a power source.

Is the SG90 suitable for robotics projects?

Yes. Its compact size, lightweight construction, controlled rotation, and easy microcontroller interface make it suitable for robotic arms, small robots, steering mechanisms, and educational robotics projects.

Can I power SG90 directly from Arduino 5V?

Yes, you can power a single SG90 directly from the Arduino 5V pin. However, if you are using 2 or more servos, you must use an external power supply to prevent resetting the Arduino.

What is the difference between SG90 and MG90S?

The SG90 has plastic gears and 1.2 kg-cm torque, making it ideal for lightweight projects. The MG90S features metal gears and higher torque (1.8 kg-cm), making it more durable for heavier loads.

Can the SG90 servo rotate 360 degrees?

No. The standard SG90 rotates about 180 degrees (roughly 90 degrees each side of centre) and holds a position. For full 360 degree rotation you need a continuous rotation servo, which controls speed and direction instead of angle.

Which is better, SG90 or MG90S?

The MG90S is better for load: it has metal gears and about 2.2 kg-cm torque versus 1.2 to 1.8 kg-cm on the plastic-geared SG90. The SG90 is cheaper and lighter, so it suits light pointers, flaps and learning kits, while the MG90S suits robot arms and RC control surfaces.

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