Notes
Arduino Boards
| Name | Processor | Voltage | CPU Speed | AIO | DIO/PWM | EEPROM | SRAM | Flash | UART | Size |
|---|---|---|---|---|---|---|---|---|---|---|
| Uno | ATmega328 | 5.0 / 7-12 | 16MHz | 6/0 | 14/6 | 1024B | 2048B | 32KB | 1 | 64x69 |
| Duemilanove | AT91SAM3X8E | 3.3 / 7-12 | 84MHz | 12/2 | 54/12 | - | 98304B | 512KB | 4 | 64x69 |
| Leonardo | ATmega32u4 | 5.0 / 7-12 | 16MHz | 12/0 | 20/7 | 1024B | 2560B | 32KB | 1 | 64x69 |
| Mega 2560 | ATmega2560 | 5.0 / 7-12 | 16MHz | 16/0 | 54/15 | 4096B | 8192B | 256KB | 4 | 54x102 |
| Mega ADK | ATmega2560 | 5.0 / 7-12 | 16MHz | 16/0 | 54/15 | 4096B | 8192B | 256KB | 4 | 54x102 |
| Micro | ATmega32u4 | 5.0 / 7-12 | 16MHz | 12/0 | 20/7 | 1024B | 2560B | 32KB | 1 | 18x48 |
| Mini | ATmega328 | 5.0 / 7-9 | 16MHz | 8/0 | 14/6 | 1024B | 2048B | 32KB | - | 18x30 |
| Nano | ATmega168 | 5.0 / 7-9 | 16MHz | 8/0 | 14/6 | 512B | 1024B | 16KB | 1 | 18x44 |
| Nano | ATmega328 | 5.0 / 7-9 | 16MHz | 8/0 | 14/6 | 512B | 2048B | 32KB | 1 | 18x44 |
| Ethernet | ATmega328 | 5.0 / 7-12 | 16MHz | 6/0 | 14/4 | 1024B | 2048B | 32KB | - | |
| Esplora | ATmega32u4 | 5.0 / 7-12 | 16MHz | - | - | 1024B | 2560B | 32KB | - | 61x165 |
| ArduinoBT | ATmega328 | 5.0 / 2.5-12 | 16MHz | 6/0 | 14/6 | 1024B | 2048B | 32KB | 1 | |
| Fio | ATmega328P | 3.3 / 3.7-7 | 8MHz | 8/0 | 14/6 | 1024B | 2048B | 32KB | 1 | 28x65 |
| Pro (168) | ATmega168 | 3.3 / 3.35-12 | 8MHz | 6/0 | 14/6 | 512B | 1024B | 16KB | 1 | |
| Pro (328) | ATmega328 | 5.0 / 5-12 | 16MHz | 6/0 | 14/6 | 1024B | 2048B | 32KB | 1 | |
| Pro Mini | ATmega168 | 3.3 / 3.35-12 | 8MHz | 6/0 | 14/6 | 512B | 1024B | 16KB | 1 | 18x33 |
| Pro Mini | ATmega168 | 5.0 / 5-12 | 16MHz | 6/0 | 14/6 | 512B | 1024B | 16KB | 1 | 18x33 |
| LilyPad | ATmega168V | 2.7-5.5 | 8MHz | 6/0 | 14/6 | 512B | 1024B | 16KB | - | 50x50 (round) |
| LilyPad | ATmega328V | 2.7-5.5 | 8MHz | 6/0 | 14/6 | 512B | 1024B | 16KB | - | 50x50 (round) |
| LilyPad USB | ATmega32u4 | 3.3 / 3.8-5 | 8MHz | 4/0 | 9/4 | 1024B | 2560B | 32KB | - | |
| LilyPad Simple | ATmega328 | 2.7-5.5 | 8MHz | 4/0 | 9/4 | 1024B | 2048B | 32KB | - | |
| LilyPad SimpleSnap | ATmega328 | 2.7-5.5 | 8MHz | 4/0 | 9/4 | 1024B | 2048B | 32KB | - | |
| Yun | ATmega32u4 | 5.0 | 16MHz | 12/0 | 20/7 | 1024B | 2560B | 32KB | 1 | |
| ATtiny 85 | ATtiny85 | 3.0-5.5 / 7-12 | 16MHz | 4/0 | 6/3 | 512B | 512B | 8 KB | 1 | 18x23 |