Register-Level Programming for Arduino

This project demonstrates register-level (low-level) programming for Arduino Mega (ATmega2560).
Instead of using Arduino built-in functions like digitalWrite or pinMode, this approach directly manipulates microcontroller registers to control hardware.

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About

• Board Used: Arduino Mega
• Programming Style: Register-level (bare-metal)
• Why Register-Level Programming?
  • Faster execution compared to Arduino functions
  • Provides precise control over hardware
  • Helps understand microcontroller architecture and fundamentals

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How It Works

Register-level programming involves configuring microcontroller registers such as:

• Data Direction Registers (DDR): Set pins as input or output
• PORT Registers: Write HIGH or LOW values to pins
• Timer/Counters: Generate PWM signals, delays, or measure time
• Interrupt Registers: Handle events asynchronously

This approach is ideal for learning embedded systems and optimizing performance in projects.