Actuators: The Robot\ — Free Robotics Tutorial
Learn Actuators: The Robot\ in Robotics with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
TL;DR: Learn Actuators: The Robot\ in Robotics with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
Actuators: The Robot\ in Robotics
Actuators are output devices that convert electrical signals into physical motion or action. Common types: DC motors (continuous rotation), servo motors (precise angle control), stepper motors (fixed steps), electromagnets, pumps.
DC motors are simple and powerful but spin continuously at one speed. Servos are slower but can hold a specific angle (0–180°). Steppers move in discrete steps — perfect for 3D printers.
Motors require more current than microcontroller pins can supply, so we use motor drivers (L298N, DRV8833) that act as intermediaries between the microcontroller and motors.
Actuators: The Robot\ — Syntax
// Arduino: Control DC motor via L298N int motorPin1 = 5; // PWM pin int motorPin2 = 6; // PWM pin analogWrite(motorPin1, 255); // Full speed forward analogWrite(motorPin1, 128); // Half speed forward analogWrite(motorPin1, 0); // Stop // Servo control servo.write(90); // Move to 90 degrees servo.write(0); // Move to 0 degrees servo.write(180); // Move to 180 degrees
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