| Arduino Official Board Selection Guide | |||||||
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| Model | Arduino UNO | Arduino DUE | Arduino Leonardo | Arduino Mega 2560 | Arduino ADK | Arduino Micro | Arduino Yun |
| SKU | DFR0181 | DFR0220 | DFR0201 | DFR0108 | DFR0149 (Discontinued) |
DFR0230 (Discontinued) |
DFR0297 (Discontinued) |
| Processor | ATmega328 | AT91SAM3X8E | ATmega32u4 | ATmega2560 | ATmega2560 | ATmega32u4 | ATmega32u4 |
| Operating Voltage (voltage / input voltage) | 5 V/7-12 V | 3.3 V/7-12 V | 5 V/7-12 V | 5 V/7-12 V | 5 V/7-12 V | 5 V/7-12 V | 5V |
| CPU Frequency | 16MHz | 84MHz | 16MHz | 16MHz | 16MHz | 16MHz | 16MHz |
| Analog Ports (Input / output) | 6 / 0 | 12 / 2 | 12 / 0 | 16 / 0 | 16 / 0 | 12 / 0 | 12 / 0 |
| Digital Ports （IO/PWM） | 14 / 6 | 54 / 12 | 20 / 7 | 54 / 15 | 54 / 15 | 20 / 7 | 20 / 7 |
| EEPROM [KB] | 1 | - | 1 | 4 | 4 | 1 | 1 |
| SRAM [KB] | 2 | 96 | 2.5 | 8 | 8 | 2.5 | 2.5 |
| Flash [KB] | 32 | 512 | 32 | 256 | 256 | 32 | 32 |
| USB Interface | A-B | Micro | Micro | A-B | A-B | Micro | Micro |
| UART | 1 | 4 | 2 | 4 | 4 | 2 | 2 |
| Dimension | 75 × 55mm | 108 × 54mm | 75 × 55mm | 108 × 54mm | 108 × 54mm | 45 × 20mm | 75 × 55mm |
| Price | $22.00 | $56.00 | $19.90 | $38.50 | Discontinued | Discontinued | Discontinued |
| Features |
*Classical Arduino controller board, reference version of later Arduino Boards.
*Suitable for Arduino beginners.
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*Atmel SAM3X8E-based (32-bit ARM microcontroller) Arduino controller board.
Note：unlike other Arduino boards, DUE only supports 3.3V operating voltage, which could be not compatible with 5V shields and peripheral devices.
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*Low-cost, more analog and digital ports than UNO, 2 UARTs.
*For low-cost Arduino projects.
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*54 digital ports, 16 analog ports, much more IO ports.
*Applicable to large project scenarios that need more sensors.
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*Atmega2560-based controller board, fully compatible with Google ADK.
*For realizing USB data communication with Android mobile system.
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*A microcontroller based on Atmega32U4 , pretty small size, compatible with small breadboards.
*Suitable for projects with size requirement.
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*A controller board based on ATmega32u4 and Atheros AR9331. Atheros supports Linux-based branch of OpenWRT platform Linino system.
*Applicable to developers who want to build up Arduino-based IoT projects.
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