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Breadboard-friendly, classic ATmega328P microcontroller board delivering full performance in a miniature form factor for space-constrained builds.
| Feature / Spec | Arduino Micro | Arduino Nano | Arduino Uno | Arduino Mega 2560 |
| Microcontroller | ATmega32U4 | ATmega328P | ATmega328P | ATmega2560 |
| Operating Voltage | 5V | 5V | 5V | 5V |
| Digital I/O Pins | 20 | 14 | 14 | 54 |
| Analog Input Pins | 12 | 8 | 6 | 16 |
| Flash Memory | 32 KB | 32 KB | 32 KB | 256 KB |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Form Factor | Ultra-compact (USB-native) | Breadboard-friendly DIP | Standard Shield Compatible | Large Extended Board |
| Suitable Applications |
Custom USB devices e.g. mice, wearables, compact controllers |
Breadboard prototyping, portable sensors, simple automation | Education, learning electronics, standard shields, beginner projects | Complex robotics, 3D printers, multi-sensor CNC setups, large automation systems |
