Enseignes et afficheurs à LED

École Polytechnique Fédérale de Lausanne via Coursera

Go to Course: https://www.coursera.org/learn/enseignes-et-afficheurs-led

Introduction

### Course Review: Enseignes et afficheurs à LED **Course Overview** If you've ever been captivated by vibrant LED displays or wanted to delve deeper into the technology behind LED signage, "Enseignes et afficheurs à LED," offered by EPFL (École Polytechnique Fédérale de Lausanne), is an immense opportunity for you. This course provides a comprehensive understanding of LED signage, ranging from simple fixed-pattern signs to massive LED screens. It combines theoretical concepts with practical programming skills necessary for building and controlling these displays using microcontrollers. **Content Breakdown** The course is structured into six detailed weeks, each focusing on different crucial aspects of LED technology: 1. **Week 1: Introduction to LED Signage** - The course begins with fundamental principles, including electric circuits, bit manipulation, and logic circuits. You'll get acquainted with microcontrollers, setting a strong foundation for the upcoming lessons. 2. **Week 2: Physical Principles of LEDs** - Dive into the science behind LEDs with a focus on diodes and transistors. This week teaches programming in C with Arduino, enabling you to create fixed-pattern displays and introduces VHDL for hardware description. 3. **Week 3: Sequential Logic and PWM** - You'll explore sequential logic circuits, input/output systems, pulse-width modulation (PWM), and time-multiplexing techniques. Understanding LED characteristics becomes vital as you learn to manipulate the light display effectively. 4. **Week 4: Matrix Displays** - Focusing on matrix displays, you'll learn about binary-coded modulation and persistent memory. This week also covers color theory related to LEDs, allowing for better design choices in your projects. 5. **Week 5: Advanced Topics in LED Control** - Here, you will encounter advanced programming techniques involving interrupts, timers, and addressable LED strips. The introduction of FPGA (Field-Programmable Gate Arrays) opens up additional pathways for complex display designs. 6. **Week 6: Remote Control and Advanced Interfaces** - The final week covers more sophisticated topics like Direct Memory Access (DMA), real-time clocks, and remote control systems. You'll also explore interfacing FPGAs with LED matrices and display video on LED walls. **Course Delivery and Learning Style** The course adopts a project-based learning approach, encouraging students to apply theoretical knowledge to real-world applications. Engaging video lectures, interactive quizzes, and hands-on programming tasks make the learning experience dynamic and effective. The course is rich in visuals and practical examples, making complex concepts accessible. **Recommendation** "Enseignes et afficheurs à LED" is highly recommended for anyone interested in electronics, programming, or visual design. Whether you are a hobbyist, a student looking to expand your knowledge, or a professional wishing to break into the field of LED technology, this course provides invaluable insights and skills. ### Pros: - Comprehensive curriculum covering both theoretical and practical aspects. - Focus on diverse applications of LED technology. - Engaging content delivered by knowledgeable instructors from EPFL. - Accessible for beginners with no prior experience in electronics programming. ### Cons: - The course is conducted in French, which may limit accessibility for non-French speakers. - Some technical prerequisites in electronics might be beneficial for a smoother learning curve. In conclusion, if you're excited about learning the intricate details of LED signage and display technology, this course will not disappoint. Sign up for "Enseignes et afficheurs à LED" on Coursera today, and start your journey into the world of illuminating possibilities!

Syllabus

Introduction

Bienvenue dans le MOOC Enseignes de afficheurs à LED, proposé par l'EPFL.

SEMAINE 1

Introduction aux enseignes et afficheurs à LED. Circuits électriques. Nombres et champs de bits. Circuits logiques combinatoires. Synthèse de circuits combinatoires. Le microcontrôleur.

SEMAINE 2

La diode à jonction : principes physiques. Le transistor. Programmation en C-Arduino. Enseignes à motifs fixes. Introduction au VHDL. Instructions concurrentes en VHDL.

LA SEMAINE 3

Circuits logiques séquentiels. Entrées-sorties. PWM : modulation de largeur d'impulsion. Le multiplexage temporel. Registre d’extension série-parallèle. Caractéristiques des LED.

SEMAINE 4

Les afficheurs matriciels. BCM : la modulation codée binaire. Mémoires permanentes. Séquenceurs à compteurs. Circuits séquentiels en VHDL. LED, lumière et couleur.

SEMAINE 5

Les Interruptions. Les timers. Rubans de LED adressables. Les afficheurs matriciels multiplexés. Circuits logiques prorammables : FPGA. Correction Gamma.

SEMAINE 6

Direct Memory Access. Horloges temps réel. Commande à distance. Langages interprétés spécialisés. Commande d’une matrice à LED avec une FPGA. Vidéo et murs de LED.