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 …
Get started quickly with Firebase using the ESP8266 NodeMCU board. Firebase is Google’s mobile application development platform that includes many services to manage data from IOS, Android, or web applications. …
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 …
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 …
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 …
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 …
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 …
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 …
There is a new Arduino IDE—Arduino IDE 2. In this tutorial, you’ll learn how to install the ESP8266 boards in Arduino IDE 2.X and upload code to the board. This …
This project shows how to build a web server with the ESP8266 NodeMCU board to plot sensor readings in charts with multiple series. As an example, we’ll plot sensor readings …
By default, the hostname of an ESP8266 NodeMCU board is ESP-XXXXXX where the Xs represents the last six characters of its MAC address. In this tutorial, you’ll learn how to …
This quick guide shows different ways to reconnect the ESP8266 NodeMCU board to a Wi-Fi network after a lost connection. This can be useful if the ESP8266 temporarily loses the …
In this guide, you’ll learn how to do over-the-air (OTA) updates to your ESP8266 NodeMCU boards using the AsyncElegantOTA library and VS Code with PlatformIO. The AsyncElegant OTA library creates …
In this guide, you’ll learn how to do over-the-air (OTA) updates to your ESP8266 NodeMCU boards using the AsyncElegantOTA library. This library creates a web server that allows you to …