Arduino Nano 3.0
Best compact microcontroller for space-constrained electronics projects.
This is the gold standard for projects where space is at a premium but performance is non-negotiable. You sacrifice the convenience of a standard DC power jack for a breadboard-friendly footprint that packs the full power of a desktop-sized board into a tiny, versatile package.
$28.40
Who it's for
- Students and hobbyists on a strict budget
- Makers building compact projects in tight enclosures
- Developers leveraging existing code libraries and community support
Who should skip it
- Users preferring modern USB-C connectivity standards
- Engineers designing complex projects requiring high processing power
- Beginners wanting a plug-and-play experience without driver troubleshooting
Performance breakdown
Form Factor
Ultra-compact footprint makes it perfect for space-constrained breadboard prototyping.
I/O Versatility
Generous pin count provides ample flexibility for most hobbyist sensor projects.
Processing Power
The ATmega328 is reliable but shows its age in complex applications.
Connectivity
The aging Mini-B USB port feels outdated compared to modern standards.
Ease of Integration
Seamless compatibility with the vast Arduino ecosystem simplifies the development cycle.
Memory Capacity
Limited flash and SRAM restrict the scale of more ambitious code.
Key Specs
Microcontroller
ATmega328P
Operating Voltage
5 V
Input Voltage (recommended)
7-12 V
Input Voltage (limits)
6-20 V
Digital I/O Pins
14 (6 PWM)
Analog Input Pins
8
DC Current per I/O Pin
40 mA
Flash Memory
32KB (2 KB used by bootloader)
SRAM
2 KB
EEPROM
1 KB
Know before you buy
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Ask Metto anything about the Arduino Nano 3.0 before you decide.
