Arduino Nano Development Board
Compact Breadboard-Friendly AVR Microcontroller Board
The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328P microcontroller, designed for compact projects and prototyping[citation:1][citation:2].
Compact 45x18mm Footprint - Smallest Arduino board, ideal for breadboards[citation:1][citation:2]
Full Uno Compatibility - Same ATmega328 core and 5V logic as the classic Uno[citation:2]
Recommended input voltage is 712V via VIN pin, or power directly via MiniB USB[citation:2]
In Arduino IDE, select "Arduino Nano" board and choose "ATmega328P" as the processor
I/O pins operate at 5V logic level - use level shifters for 3.3V devices
Technical Specifications
| Parameter | Value |
|---|
| Microcontroller | ATmega328P[citation:2] |
| Operating Voltage | 5V[citation:2] |
| Input Voltage | 7-12V[citation:2] |
| Digital I/O Pins | 22 (6 with PWM)[citation:2] |
| Analog Input Pins | 8[citation:2] |
| DC Current per I/O Pin | 40mA[citation:2] |
| Flash Memory | 32KB[citation:2] |
| SRAM | 2KB[citation:2] |
| EEPROM | 1KB[citation:2] |
| Clock Speed | 16MHz[citation:2] |
| Dimensions | 18 x 45mm[citation:2] |
| Weight | 7g[citation:2] |
## Key Features
ATmega328P Core 8bit AVR running at 16MHz with 32KB Flash memory[citation:2]
BreadboardFriendly DIP-30 pin layout with 2.54mm spacing fits standard breadboards[citation:1]
Multiple Power Options MiniB USB, unregulated 6-20V, or regulated 5V power supply[citation:4][citation:7]
= Applications =
- Space-constrained prototypes and wearables[citation:3]
- Sensor data acquisition and logging
- Robotics and automation projects
- Educational electronics and STEM learning
Classic Miniature Board - One of the most popular Arduino boards for breadboard prototyping
Rich Ecosystem - Compatible with thousands of shields and libraries
√ Comes with or without pre-soldered pin headers for flexible integration
√ Builtin USBto-serial converter for easy programming
√ Includes 1KB EEPROM for non-volatile storage
Power Options
| Power Source | Voltage | Connector |
|---|
| USB | 5V | Mini-B USB |
| VIN Pin | 7-12V | Pin 30 |
| 5V Pin | 5V Regulated | Pin 27 |
The Nano automatically selects the highest voltage power source available[citation:7].
Troubleshooting
Board not detected:
- Install CH340 USB driver if using a clone board
- Use a datacapable USB cable (not chargeonly)
- Try a different USB port
Upload fails:
- Select correct processor: "ATmega328P" or "ATmega328P (Old Bootloader)" for some clones
- Check port selection
- Ensure board is not resetting during upload
