NodeMCU ESP8266 PWM with Arduino IDE

In this article we will learn to implement NodeMCU ESP8266 PWM with Arduino IDE. If your are new to Internet of Things (IoT), learn about IoT by visiting our Internet of Things tutorial for beginners.

Watch this video to learn about Pulse Width Modulation (PWM) using NodeMCU and Arduino IDE:

Aim of Experiment

To implement PWM for controlling the brightness of an LED

Components Required

• NodeMCU – 1
• LED – 1
• 330 Ω Resistor – 1
• Breadboard – 1

Connections Diagram (Schematic)

Code (C++/Arduino IDE)

const int led_pin = D0;

void setup() {
  // put your setup code here, to run once:
  pinMode(led_pin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  for(int i=0; i<=1024; i++){
    analogWrite(led_pin, i);
    delay(10);
  }
}

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.