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Hardware Setup
der-programmer1 edited this page Oct 24, 2025
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For most LED projects, you need:
- Arduino board (Uno, Nano, or compatible)
- LEDs
- 220Ω resistors
- Push buttons (for interactive projects)
- Breadboard and jumper wires
- Always use current-limiting resistors with LEDs
- Connect button to GND with INPUT_PULLUP mode
- Label your pins clearly in code for easier debugging