📘 Arduino Nano Pinout Explorer - User Guide
This interactive tool helps you navigate the Arduino Nano - the compact and versatile development board perfect for breadboard projects and embedded systems. Click any pin to see its complete specifications, alternate functions, and wiring notes. Ideal for beginners learning Arduino or experienced makers needing quick reference.
🔍 How to Use This Tool
Simply click on any pin on the Arduino Nano diagram. The right panel instantly displays all details including pin function, voltage, and Arduino programming notes.
Use filter buttons (Digital, Analog, PWM, I2C, SPI, Serial) to highlight specific pin types on the board. Active filters glow with their respective colors.
Click "SHOW" to expand the complete pin list. Select any pin from the list to highlight it on the board diagram.
Hover over any pin to see a tooltip with pin name, main function, and voltage - perfect for quick reference while wiring.
📋 What Each Pin Shows
🎨 Pin Color Codes
🔧 Arduino Nano Specifications
- Microcontroller: ATmega328P
- Operating Voltage: 5V (logic), 3.3V output available
- Input Voltage: 7-12V (recommended via VIN)
- Digital I/O Pins: 14 (D0-D13)
- PWM Pins: 6 (D3, D5, D6, D9, D10, D11)
- Analog Input Pins: 8 (A0-A7)
- DC Current per I/O Pin: 40 mA
- Flash Memory: 32 KB (2 KB used by bootloader)
- SRAM: 2 KB
- EEPROM: 1 KB
- Clock Speed: 16 MHz
💡 Important Arduino Nano Tips
Do not exceed 5V on I/O pins. Use VIN (7-12V) or mini-USB for power. 3.3V output provides up to 50mA only.
- D0 (RX) and D1 (TX) are used for serial communication - avoid using them as I/O during serial operations
- D13 has built-in LED - ideal for testing blink sketches
- A6 and A7 are analog input only - no digital capability
- AREF pin sets analog reference voltage (default 5V)
- Reset pin low resets the microcontroller
- I2C: A4 (SDA), A5 (SCL)
- SPI: D10 (SS), D11 (MOSI), D12 (MISO), D13 (SCK)
- Total current from 5V pin: ~500mA (via USB) or ~800mA (via VIN)
- Maximum total I/O current: 200mA across all pins
📝 Arduino Programming Reference
🔗 Explore Other Boards
Check out our interactive pin explorers for other popular development boards:
Click any card to open the interactive tool in a new tab.
🧠 About This Tool
The Arduino Nano Pinout Explorer is an interactive reference tool designed for electronics hobbyists, students, and professional makers. Unlike static pinout diagrams, this tool lets you explore the board dynamically - click, hover, and filter to quickly understand pin functions and connections. Whether you're wiring sensors on a breadboard, designing shields, or learning Arduino programming, this tool helps prevent common wiring mistakes and speeds up your development process.
Version 1.0 • Compatible with Arduino Nano (ATmega328P) and most clones • Free for educational and commercial use • Updated March 2026
