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Pulse-width modulation (PWM)

Pulse-width modulation or PWM is a technique used to simulate an analog output signal.

Table of contents

  1. Applications
  2. PWM signal
  3. Using analogWrite

Applications

PWM is used in the following applications.

  • Varying power to low-powered devices like LEDs
  • Providing a PWM signal to transistors and motor controllers

PWM signal

Using analogWrite