Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...

Overview & Objective The article teaches how to implement smooth LED fading on an Arduino Mega using PWM (Pulse Width Modulation). It’s a beginner‑friendly guide guiding through both hardware setup ...

I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, I’d ...

This project shows how a potentiometer (variable resistor) can be used to control the brightness of an LED. The Arduino reads the analog value from the potentiometer and uses PWM (Pulse Width ...

A potentiometer produces a variable analog voltage when its knob is rotated. The Arduino reads this voltage using an analog input pin. The PWM value is then sent to a PWM-enabled digital pin using ...

Here’s an Arduino library that will let you drive a very large number of LEDs. [Elco Jacobs], an electrical engineering student, is the author of the library. He has a work-study job that has him ...

The Arduino library provides a very simple way to generate a PWM signal. The only problem is that the frequency is fixed and all you can alter is the duty cycle: analogWrite(pin, value) where pin is ...

One way around the problem of getting a fast response from a microcontroller is to move the problem away from the processor. In the case of the ESP32 there are some built-in devices that can use GPIO ...