DIY Emoji Display Using ESP32 & LED Matrix | Change Faces via Wi-Fi!Welcome to RoboRequest – You Ask, We Build!
This time, we’re adding emotions to electronics with an interactive Emoji Display! 😄❤️😢
Control an 8x8 LED Matrix using your phone or computer via Wi-Fi, powered by an ESP32. Just tap an emoji on the web browser and watch it light up on the matrix — wirelessly!
📲 No mobile app, no extra controller — just Wi-Fi, emojis, and the magic of code.
💡 This is a perfect project for learning ESP32 web server basics, creating interactive interfaces, and working with LED matrix graphics — all while having emoji-filled fun!
📍 What You’ll Learn in This Tutorial:
✅ How to interface an 8x8 LED Matrix with ESP32
✅ Create a web server using ESP32
✅ Use buttons in HTML to trigger matrix display changes
✅ Display 10 different emojis on the LED grid
✅ Write efficient code to map emojis to bitmaps
🧰 Components Used:
ESP32 Dev Board
8x8 LED Matrix (MAX7219 module)
Jumper Wires
Breadboard
USB Cable
👉 Download Arduino IDE:
📁 Download Arduino Code (.ino):
📄 Download Code in Word Format (.docx):
🖼 Circuit Diagram & Matrix Pin Reference Image:
🕹 Chapters (Timestamps):
0:00 – Intro
0:18 – Project Overview
0:45 – Components Required
1:10 – Circuit & Connections
1:35 – Web Server Interface Explained
2:15 – Code Walkthrough
4:00 – Live Demo: Emoji on Matrix
4:45 – Final Thoughts
📌 Recommended For:
IoT + WiFi Projects
LED Matrix Animations
Creative Web Control Projects
Beginner ESP32 Learners
STEM + Classroom Demos
Wi-Fi Based Interactions
📢 Special Thanks to:
@tsui-fengwu4344 and @CreativityandnNew for requesting this awesome project idea! 🙌
💬 Drop your RoboRequest in the comments — we might build your idea next!
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#EmojiMatrix #ESP32Projects #WiFiControl #RoboRequest #LEDMatrixDisplay #ArduinoWebServer #IoTProjects #RoboArmy #STEMForAll #BeginnerElectronics #CreativeCoding #SmartDIY #EmojiOnLED #ESP32LEDMatrix
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