7 Segment Display Arduino Tutorial (No digitalWrite!) | Low-Level Programming Explained

Are you ready to understand how a 7-segment display works? In this beginner-friendly yet in-depth tutorial, I guide you through a comprehensive journey, from basic theory to low-level programming and real-world implementation.

What You’ll Learn in This Video:
✅ What a 7-segment display is and how it works
✅ Difference between common cathode and common anode types
✅ How each segment (a–g + dp) lights up using binary logic
✅ Visual demo of internal LED connections using LogicState in Proteus
✅ Simulation of both common cathode and common anode in Proteus
✅ Writing and explaining a low-level program using direct port manipulation
✅ How to simulate it in Wokwi online (for free!)
✅ Live breadboard wiring and demo using Arduino UNO
✅ Explanation of hexadecimal values and bit-wise operations used in low-level programming

What Makes This Project Unique?
Instead of just using digitalWrite(), I dive into real low-level microcontroller programming, using direct access to Arduino’s PORTD and PORTB registers. This helps you understand how the bits of an Arduino directly control the LED segments, making your code faster and your understanding deeper.

Tools and Platforms Used:
1. Arduino UNO
2. 7-Segment Display (Common Cathode & Anode)
3. Proteus LogicState Simulator
4. Wokwi Arduino Simulator
5. Real Breadboard Demo
6. Arduino IDE

🔗 Wokwi Simulation Project: https://wokwi.com/projects/432706221793949697

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#arduino #7segmentdisplay #lowlevelprogramming

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