In this tutorial, we will learn how to control ESP32 and ESP8266 NodeMCU outputs simultaneously from a web page and a physical push button by hosting a web server on them. In other words, if a user controls the LED with a push button, the state of the LED will be automatically updated on the … Read more
In this tutorial, we will learn how to control the output of ESP32 or ESP8266 NodeMCU by using Telegram Bot. Telegram is a free, cross-platform, cloud-based messaging application used for sending messages, videos, and images. For the user, it becomes extremely interactive as well as easy to use this application to control any AC appliance … Read more
In this user guide, we will learn how to create an ESP32 and ESP8266 thermostat web server with a temperature threshold input. The web server will control ESP boards output ON/OFF based on a certain temperature threshold set by the user from a web page. The web server will allow the user to change the … Read more
In this user guide, we will create an ESP32 and ESP8266 momentary switch web server that will be able to control the ESP32 and ESP8266 GPIO outputs using Arduino IDE. A momentary switch is just like a button you press and hold to get a specific action, but as soon as you release your finger, … Read more
In this tutorial, we will learn how to display images (format .png or .jpg) in ESP32 and ESP8266 web servers using Arduino IDE. For demonstration, we will build a web server with a simple HTTP protocol as well as an asynchronous library. We will see three different ways to embed images into a web page … Read more
In this tutorial, we will see how to create a web server using ESP32 and ESP8266 boards to control outputs with a timer. Specifically, we will be controlling an onboard LED using a slider, allowing us to select a specific number of seconds. During this chosen time, the LED will remain in a HIGH state. … Read more
In this tutorial, we will learn how to add HTTP authentication to ESP32 and ESP8266 web servers using Arduino IDE build with the ESPAsyncWebServer library. In today’s interconnected world, security is paramount, and protecting access to sensitive resources on your Internet of Things (IoT) devices is essential. Whether you’re a hobbyist, a developer, or an … Read more
In this tutorial, we will guide you through the process of connecting an I2C LCD to the ESP32 board. This comprehensive guide is applicable to the ESP8266 NodeMCU as well. The I2C LCD is a versatile 16×2 device, providing you with the capability to display 16 columns by two rows of alphanumeric characters. Moreover, you … Read more
In this tutorial, we will see how to erase the flash memory of an ESP8266 using the esptool.py command-line utility in Windows, Linux, and MacOS, and discuss why and when you might want to do this. As with any electronic device, there may be times when you need to reset the ESP8266 to its factory … Read more
In this tutorial, you will learn to send sensor readings via email with an SMTP client and MicroPython using ESP32 or ESP8266. For demonstration purposes, we will send BME280 sensor readings such as temperature, pressure, and humidity to the Gmail SMTP server but you can modify this example for any sensor and SMTP server. Recommended … Read more