Interfacing DC Motor with Arduino:

interfacing

Instructions

Objective:

Learn how to control a DC motor using Arduino with PWM (Pulse Width Modulation) for speed control.

Steps to Perform:

  1. Click "Start Simulation" to power up the Arduino circuit
  2. The DC motor will start rotating at a controlled speed
  3. The motor runs continuously using PWM signal with value 20
  4. This creates a low-speed rotation of the motor
  5. Click "Stop Simulation" to turn off the motor

Key Concepts:

  • DC Motor: Converts electrical energy to mechanical rotation
  • PWM Control: Uses analogWrite() to control motor speed (0-255)
  • Pin 11: PWM-enabled pin connected to motor driver circuit
  • Speed Value: 20 out of 255 produces slow rotation (~8% speed)
  • Motor Driver: Circuit amplifies Arduino signal to drive motor
  • Continuous Operation: Motor runs in loop() without delays
Arduino Code - main.ino