Control a LED Matrix via web interface with Arduino ESP32

Control a LED Matrix via web interface with Arduino ESP32, available at $64.99, has an average rating of 4.3, with 28 lectures, based on 20 reviews, and has 610 subscribers.

You will learn about Control of LED matrix via created web interface Using HTTP request to load data from public APIs Using JSON objects in Arduino Displaying graphics and text on a display This course is ideal for individuals who are To all DIY enthusiasts and hobby developers who develop with the Arduino platform. It is particularly useful for To all DIY enthusiasts and hobby developers who develop with the Arduino platform.

Enroll now: Control a LED Matrix via web interface with Arduino ESP32

Summary

Title: Control a LED Matrix via web interface with Arduino ESP32

Price: $64.99

Average Rating: 4.3

Number of Lectures: 28

Number of Published Lectures: 28

Number of Curriculum Items: 28

Number of Published Curriculum Objects: 28

Original Price: $19.99

Quality Status: approved

Status: Live

What You Will Learn

Control of LED matrix via created web interface

Using HTTP request to load data from public APIs

Using JSON objects in Arduino

Displaying graphics and text on a display

Who Should Attend

To all DIY enthusiasts and hobby developers who develop with the Arduino platform.

Target Audiences

To all DIY enthusiasts and hobby developers who develop with the Arduino platform.

We build this practical project step by step and you can download all the codes for each chapter. Frustration-free development is guaranteed!

In this video course you will learn how to control a 8×32 LED matrix (or a MAX72xx module). We use the MD_Parola library for this project. With this library we can control the text in many different ways. With this library we have the possibility to implement different ticker settings easily and fast. A text can slide in from one side and stop in the middle of the matrix for a certain time. The duration of the ticker can be adjusted and also the speed and brightness of the ticker can be easily adjusted.

We will also insert dot graphics that will make the text “disappear” as soon as the graphic slides over the text.

We will create a website in the course using a local web server running on the ESP32/8266. The web server will be configured in such a way that you can access the created (also in this course) website using a fixed IP address. On the website there is an input field where you can enter text. Using jQuery we send a GET request to the Arduino, which evaluates the content and displays it on the LED matrix. This way you can individually control the text via the web server.

The text as well as the website data are stored on the ESP using SPIFFS. This is the flash memory of the Arduino. This means that the current text can be displayed on the website after each opening. By storing the data on the flash memory, every person/end device that calls up the website can see the current text on the LED matrix. Thus, one could also design a larger advertising space via a web server. If the Arduino were disconnected from power, the content of the output would not disappear and would automatically output the text again when the power source is connected again.

We will also display the local time. For this we connect to a NTP server and download the current timestamp. We convert this timestamp into a readable date/time.

Last but not least, we fetch the current bitcoin price from a public interface. Thus you learn how to control public APIs with the Arduino and how to evaluate the return value using Arduino JSON.

After each video I have saved my code. You can download all codes, so you can get to the result without frustration.

We use the following components in this project.

ESP32/ESP8266

MAX7219 8×32 LED-Matrix

Step-down-Modul for external 12v power supply (optional)

See you in class.
pixelEDI

Course Curriculum

Chapter 1: Introduction

Lecture 1: Overview LED Matrix

Lecture 2: Power supply with step-down module

Lecture 3: Wiring ESP32

Lecture 4: Wiring ESP8266

Lecture 5: All files from this online course

Chapter 2: LED Matrix

Lecture 1: Intro

Lecture 2: IDE Setup

Lecture 3: Libraries and first text output

Lecture 4: Adjust the sliding text

Lecture 5: Interconnect LED module

Lecture 6: Pacman and text

Lecture 7: Rocket, bunny, heart and other content

Lecture 8: Create and display your own graphic Lets go online

Chapter 3: Lets go online

Lecture 1: Intro

Lecture 2: Establish wifi connection

Lecture 3: SPIFFS

Lecture 4: SPIFFS Data uploader

Lecture 5: Web server for this project

Lecture 6: HTML Input und GET-Request

Lecture 7: GET parameters on the Arduino

Lecture 8: Pass text from website

Lecture 9: Show SPIFFS data on website

Lecture 10: Control graphics and text via website

Chapter 4: Display external data

Lecture 1: Intro

Lecture 2: Show current time via NTP server

Lecture 3: Cryptocurrency via free API

Chapter 5: Conclusio

Lecture 1: Adapt to ESP8266

Lecture 2: Conclusio and goodbye

Instructors

Markus Edenhauser
Tech Enthusiast, Dozent & systemischer Coach

Rating Distribution

1 stars: 0 votes

2 stars: 1 votes

3 stars: 3 votes

4 stars: 4 votes

5 stars: 12 votes

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