ESP8266 NodeMCU with BH1750 Ambient Light Sensor
The BH1750 is a 16-bit ambient light sensor. In this guide, you’ll learn how to use the BH1750 ambient light sensor with the ESP8266 NodeMCU board using Arduino IDE. The …
ESP8266
ESP8266 NodeMCU Data Logging to Firebase Realtime Database
In this guide, you’ll learn how to log data with the ESP8266 NodeMCU to the Firebase Realtime Database with timestamps (data logging) so that you have a record of your …
ESP8266 NodeMCU: Create a Wi-Fi Manager (AsyncWebServer library)
In this guide, you’ll create and set up a Wi-Fi Manager with the ESPAsyncWebServer library that you can modify to use with your web server projects or with any project …
What is MQTT and How It Works
In this article, we’re going to introduce you to the MQTT protocol. MQTT stands for Message Queuing Telemetry Transport.
ESP8266 NodeMCU Web Server: Display Sensor Readings in Gauges
Learn how to build a web server with the ESP8266 NodeMCU to display sensor readings in gauges. As an example, we’ll display temperature and humidity from a BME280 sensor in …
ESP8266 NodeMCU Door Status Monitor with Telegram Notifications
In this project, you’re going to monitor the status of a door using an ESP8266 NodeMCU board and a magnetic reed switch. You’ll receive a message in your Telegram account whenever the door …
ESP8266 NodeMCU Web Server: Control Stepper Motor (WebSocket)
In this guide, you’ll learn how to create a web server with the ESP8266 NodeMCU board that displays a web page to control a stepper motor. The web page allows …
ESP8266 NodeMCU Door Status Monitor with Email Notifications (IFTTT)
In this project, you’re going to monitor the status of a door using an ESP8266 NodeMCU board and a magnetic reed switch. You’ll receive an email notification whenever the door changes state: opened …
ESP8266 NodeMCU with Stepper Motor (28BYJ-48 and ULN2003 Motor Driver)
In this guide, you’ll learn how to control a stepper motor with the ESP8266 NodeMCU board. We’ll use the 28BYJ-48 unipolar stepper motor with the ULN2003 motor driver. We’ll program …
ESP8266 NodeMCU WebSerial: Web-based Remote Serial Monitor
In this guide, you’ll learn how to create and use a web-based “Serial Monitor” for your ESP8266 NodeMCU projects using the WebSerial library. This creates a web-based interface to output …
ESP8266 NodeMCU with HC-SR04 Ultrasonic Sensor with Arduino IDE
This guide shows how to use the HC-SR04 Ultrasonic Sensor with the ESP8266 NodeMCU board using the Arduino core. The ultrasonic sensor uses sonar to determine the distance to an …
ESP8266 NodeMCU with BMP388 Barometric/Altimeter Sensor (Arduino IDE)
The BMP388 is a tiny and precise absolute barometric pressure sensor. Because of its precision, it is often used to estimate altitude in drone applications. It can also be used …
ESP8266 NodeMCU Publish Sensor Readings to ThingSpeak (easiest way)
In this guide, you’ll learn how to send sensor readings with the ESP8266 NodeMCU board to ThingSpeak. For demonstration purposes, we’ll use a BME280 sensor, but you can easily modify …
ESP8266 NodeMCU Web Server (WebSocket) with Multiple Sliders: Control LEDs Brightness (PWM)
This tutorial shows how to build a web server with the ESP8266 NodeMCU board that displays a web page with multiple sliders. The sliders control the duty cycle of different …