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Servo Selection Guide: Torque, Size & Specifications

Torque Rating: The key specification that shows how much load a servo can handle (e.g., “2.0 kg·cm” means it can lift 2 kg at a 1 cm radius). Higher torque is needed for heavier robotics and RC applications.

Size / Form-Factor:

Micro servos (e.g., SG90): Small, lightweight, low torque.
Standard servos: Medium size, suitable for most general-purpose builds.
High-torque / heavy-duty servos: Larger, strong motors for robot joints, RC cars, and mechanical arms.

Speed: Indicates how fast the servo moves (time to rotate 60° or 90°). Faster speeds are useful for animatronics, pan-tilt systems, and motion effects.

Voltage / Current: Always check that your power supply can handle the servo’s required current-especially under stall load.

Metal vs Plastic Gears:

Metal gears: Stronger, more durable, ideal for load-bearing applications.
Plastic gears: Lighter and quieter, good for small hobby projects.

Continuous Rotation vs Positional:

Continuous rotation servos act like motors and spin freely-ideal for wheels and RC drive systems.
Positional servos move to an exact angle-ideal for joints, grippers, and pan/tilt.

Controller & Channel Count: For multi-servo builds (robot arms, animatronics), use multi-channel PWM drivers or servo controllers for stable performance.

Code Example for Servo Control

Arduino Code

#include <Servo.h> Servo myServo; const int servoPin = 9; void setup() { myServo.attach(servoPin); } void loop() { myServo.write(0); // Move to 0° delay(1000); myServo.write(90); // Move to 90° delay(1000); myServo.write(180); // Move to 180° delay(1000); }

Raspberry Pi (using gpiozero or RPi.GPIO library):

from gpiozero import Servo from time import sleep servo = Servo(17) # PWM pin GPIO17 while True: servo.min() sleep(1) servo.mid() sleep(1) servo.max() sleep(1)

Creative DIY Projects: Robotic Arms, Animatronics & RC Cars

Robotic Arm: Use 3-5 servos for base rotation, shoulder, elbow, wrist and gripper. Code the arm to pick and place objects or wave.

Animatronic Face or Talking Robot: Mount servos behind facial features (eyebrows, jaw, eyelids) and sync motion to audio clips or speech for fun characters.

RC Car Steering & Throttle: Use a high-torque servo for the steering mechanism and a continuous-rotation or high-speed servo for throttle control on an RC car chassis.

Gimbal or Camera Pan/Tilt Rig: Two servos mounted for pan and tilt to build a camera mount that tracks motion or follows a subject.

Automated Door/Flap Mechanism: A servo opens/closes a miniature door, window shutter or compartment lid when triggered by sensors.

Beginner Tips: Wiring & PWM Control

Connect servo VCC to a stable 5V or 6V supply (depending on servo rating).

Connect servo ground to the same ground as your Arduino or Raspberry Pi.

Servo signal wire (usually yellow/orange) must go to a PWM-capable pin.

For high-load servos, use an external power supply and connect grounds together.

Avoid powering multiple servos directly from the Arduino 5V rail.

Use the Arduino Servo library—it automatically handles the PWM timing.

Always calibrate servo angle limits; some servos don’t fully reach 0° or 180°.

For smooth movement, rotate the servo in small angle steps with short delays.

Keep wiring short; use decoupling capacitors to reduce jitter and prevent resets if the servo draws sudden current.

Passive Buzzer Module 3.3V-5V DC

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Product	Price
SG90 Micro Servo Motor	Rs. 104/-
MG995 Servo Motor	Rs. 249/-
Servo Motor Tester	Rs. 99/-
MG90S Servo Motor	Rs. 179/-
Servo Motor Pan-Tilt Setup	Rs. 109/-

Servo Motors	DC Motors
It comprises 3 wire systems known as Power, Ground and Control.	A DC motor is a two wire system known as Power and Ground.
Servo motor has an assembly of four things: DC motor, gearing set, control circuit and a position sensor.	It does not comprise any assembly.
Servo motors are used in robotic arms, legs or rudder control systems and toy cars.	DC motors are used in fans, car wheels, etc

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Featured Products

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All About Servo Motors & Controllers for Robotics and DIY

Servo Selection Guide: Torque, Size & Specifications

Code Example for Servo Control

Arduino Code

Raspberry Pi (using gpiozero or RPi.GPIO library):

Creative DIY Projects: Robotic Arms, Animatronics & RC Cars

Beginner Tips: Wiring & PWM Control

Price Chart of Servo Motors in India

Frequently Asked Questions

1. What is a servo motor?

2. What type of motor is a servo motor?

3. What is the difference between a servo motor and a DC motor?

DC motors are used in applications where the motor is required to give out a rotational speed, while servo motors are used in applications where precise angles are desired.

4. Are servo motors AC or DC?

Servo motors come in both AC and DC varieties. If the servo motor is made of a DC motor, it will be called a DC servo motor. If the servo motor is made using an AC motor, then the servo motor is said to AC servo motor

5. Can servo motors rotate 360 degrees?

More expensive servo motors tend to be capable of rotating full 360 degrees. However, lower priced servo motors are usually locked to a certain range of angles.

The MG995 360° has accurate positioning, quick control response and excellent holding power. It is equipped with a 3-wire JR servo plug which is compatible with Futaba connectors.

6. How are servo motors controlled?

Servo motors are to be controlled using a microcontroller. It comes with 3 connectors, positive, negative and input. The positive and negative are to be connected to VCC and GND while the input connector can be connected to any digital pin of any microcontroller.

7. Which is better - A servo motor vs a stepper motor?

Servo motors offer more precision than a stepper motor, while stepper motors tend to be cheaper and have the capability of full 360 degree rotation. Stepper motor also suffers from torque degradation at higher speeds, as compared to servo.

8. What are the advantages of a servo motor?

9. Which servo motor is best for robotics projects?

10. Are these servo motors compatible with Arduino and Raspberry Pi?

Yes, the servos listed are compatible with boards like Arduino an

11. Do the motors come with controllers included?

12. Can these servos be used for RC cars, drones, or robotic arms?

Let customers speak for us

All Categories

Servo Motors & Controllers for Robotics and DIY

Categories

Refined By Clear all

Availability

Price

Featured Products

Sort by:

Recently Viewed Products

All About Servo Motors & Controllers for Robotics and DIY

Servo Selection Guide: Torque, Size & Specifications

Code Example for Servo Control

Arduino Code

Raspberry Pi (using gpiozero or RPi.GPIO library):

Creative DIY Projects: Robotic Arms, Animatronics & RC Cars

Beginner Tips: Wiring & PWM Control

Price Chart of Servo Motors in India

Frequently Asked Questions

1. What is a servo motor?

2. What type of motor is a servo motor?

3. What is the difference between a servo motor and a DC motor?

DC motors are used in applications where the motor is required to give out a rotational speed, while servo motors are used in applications where precise angles are desired.

4. Are servo motors AC or DC?

Servo motors come in both AC and DC varieties. If the servo motor is made of a DC motor, it will be called a DC servo motor. If the servo motor is made using an AC motor, then the servo motor is said to AC servo motor

5. Can servo motors rotate 360 degrees?

More expensive servo motors tend to be capable of rotating full 360 degrees. However, lower priced servo motors are usually locked to a certain range of angles.

The MG995 360° has accurate positioning, quick control response and excellent holding power. It is equipped with a 3-wire JR servo plug which is compatible with Futaba connectors.

6. How are servo motors controlled?

Servo motors are to be controlled using a microcontroller. It comes with 3 connectors, positive, negative and input. The positive and negative are to be connected to VCC and GND while the input connector can be connected to any digital pin of any microcontroller.

7. Which is better - A servo motor vs a stepper motor?

Servo motors offer more precision than a stepper motor, while stepper motors tend to be cheaper and have the capability of full 360 degree rotation. Stepper motor also suffers from torque degradation at higher speeds, as compared to servo.

8. What are the advantages of a servo motor?

9. Which servo motor is best for robotics projects?

10. Are these servo motors compatible with Arduino and Raspberry Pi?

Yes, the servos listed are compatible with boards like Arduino an

11. Do the motors come with controllers included?

12. Can these servos be used for RC cars, drones, or robotic arms?

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