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Multiple LEDs’ brightness controlled over a web server
Student: Delia Luca, ACES
1. Introduction. Description of the project
The goal of this project is to give the end-user the possibility to control the brightness of several LEDs (for exemplification I used 6 LEDs) through a friendly web interface. The internet page provides a number of slides equal to the number of LEDs and with their help, a person, that has access to the internet from the same access point as the server does, can simply choose how intense they want each of their LEDs to sparkle.
2. Hardware components and wiring
The hardware components needed for this project are:
- ESP32 board
- Breadboard
- Jumper wires
- 220 Ohm resistors
- LEDs
- Micro USB data cable
- Any PC with an internet connection and with Arduino IDE
The electric scheme of the project that I did is the following (done in https://www.circuit-diagram.org/editor/):
3. Software implementation and how it works
The software part of this project consists of 3 parts:
- the main code written and run in Arduino IDE that programs the ESP32 board and set the webserver;
<#include>
- descriere părți imp * the .html and .css files that create and design the web page; * poză pagină
- the java script that programs the web page;
- descriere părți importante
4. Demonstration
A video demonstrating the functionality of this project can be seen here: LINK VIDEO
5. Overlook and conclusion
The proposed project has reached its goal. I understood how ESP32 board can be used as a web server, and I employed this functionality for creating an interactive and easy way for a user to control multiple LEDs. It could be further improved by adding more security, using a HTTPS connection. Moreover, it could also be scaled up to more complex installations or adding different functionalities such as automatically turning on the LEDs when the light intensity is low and consulting their level of brightness through a web server.
5. Resources
