How to interact with the ESP8266 web server?

How to interact with the ESP8266 web server?

Using the HTML UI we can interact with the ESP8266 through the Web server. We showed how to use the Web server in two different ways: Moreover, you learned how to implement an Access Point using ESP8266 so that a smartphone can connect to the WiFi managed by the ESP8266.

How to update a variable in ESP web server?

If you ever needed to update a variable through an ESP web server, you should follow this project. With this method, you avoid hard coding variables because you can create an input field in a web page to update any variable with a new value. This can be specially useful to set threshold values, set SSID/password, change API Keys, etc…

Where is the HTML text saved in ESP32?

When, you access the route URL, you send the HTML page to the client. In this case, the HTML text is saved on the index_html variable. Then, you need to handle what happens when you receive a request on the /get routes. We create two variables: inputMessage and inputParam to save the input value and the input field.

How to build an asynchronous web server in ESP32?

To build the asynchronous web server, you need to install these libraries. ESP32: install the ESPAsyncWebServer and the AsyncTCP libraries. ESP8266: install the ESPAsyncWebServer and the ESPAsyncTCP libraries.

Can you use Node.js on the ESP8266?

Node.js is so great that we will be able to directly use Pug templates (presentation article) and even retrieve real measurements directly on the ESP8266! In this tutorial we will see how to quickly realize an HTML interface that will display the measurements of a DHT22 and drive the GPIO of the ESP8266.

Which is the IP address of the ESP server?

When client request a web page by entering ESP IP address which data to be sent is handled by subroutine and that subroutine name is defined in server.on (path,subroutine_name). Server.on (“/”,root); //192.168.2.2 (IP of ESP) this is root location

How to serve HTML, JavaScript and CSS in ESP8266?

The objective of this post is to explain how to serve some HTML, Javascript and CSS in a ESP8266 HTTP webserver. It’s important to take in consideration that HTML, Javascript and CSS are languages that are executed / rendered in the client side [1].

How to return 200 HTML code in ESP8266?

So first, we want to return the 200 HTTP code (OK code). Then, we need to make sure that we specify the return content as text/html, so the browser will know that it should be interpreted and rendered as such.

Do you need ESP32 or ESP8266 for Arduino?

To follow this tutorial you just need an ESP32 or ESP8266 (read ESP32 vs ESP8266 ). There’s no circuit for this project. 1. ESP32/ESP8266 Handle Input Fields on Web Page with HTML Form Copy the following code to the Arduino IDE. Then, type your network credentials (SSID and password) to make it work for you.