ARDUINO BOARDS

NameProcessorFormatHost interfaceI/ORelease dateNotes
ProcessorFrequencyDimensionsVoltageFlash (kB)EEPROM (kB)SRAM (kB)Digital I/O (pins)Digital I/O with PWM(pins)Analog input (pins)Analog output pins
Arduino / Genuino MKR1000ATSAMW25 (made of SAMD21 Cortex-M0+ 32 bit ARM MCU,
WINC1500 2.4GHz 802.11 b/g/n Wi-Fi, and ECC508 crypto device )
48 MHzminimal61.5 mm x 25 mmUSB3.3 V256No3281271Announced: April 2, 2016
Arduino 101
Genuino 101
Intel® Curie™ module two tiny cores, an x86 (Quark SE) and an ARC32 MHzArduino / Genuino68.6 mm × 53.4 mm [ 2.7 in × 2.1 in ]USB3.3 V196241446October 16, 2015Contains six-axis accelerometer, gyroscope and bluetooth
Arduino ZeroATSAMD21G18A48 MHzArduino2.7 in × 2.1 in [ 68.6 mm × 53.3 mm ]USBNative & EDBG Debug3.3 V2560 to 16 Kb emulation3214126Released June 15,
 2015

Announced May 15,
 2014

Listed on some vendors list Mar 2015
Beta testing since Aug 1, 2014
Arduino DueATSAM3X8E(Cortex-M3)84 MHzMega4 in × 2.1 in [ 101.6 mm × 53.3 mm ]USB16U2[13] + native host[14]3.3 V5120[15]965412122October 22, 2012The first Arduino board based on an ARMProcessor. Features 2 channel 12-bit DAC, 84 MHz clock frequency, 32-bit architecture, 512 KB Flash and 96 KB SRAM. Unlike most Arduino boards, it operates on 3.3 V and is not 5 V tolerant.
Arduino YúnAtmega32U4,
Atheros AR9331
16 MHz,
400 MHz
Arduino2.7 in × 2.1 in [ 68.6 mm × 53.3 mm ]USB5 V32 kB,
16 MB
1 kB,
0 kB
2.5 kB,
64 MB
14612September 10, 2013Arduino Yún is the combination of a classic Arduino Leonardo (based on the Atmega32U4 processor) with a Wifi system on a chip (SoC) running Linino, a MIPSGNU/Linux based on OpenWrt.
Arduino LeonardoAtmega32U416 MHzArduino2.7 in × 2.1 in [ 68.6 mm × 53.3 mm ]USB32U4[18]5 V3212.520712July 23, 2012
Arduino Leonardo

The Leonardo uses the Atmega32U4 processor, which has a USB controller built-in, eliminating one chip as compared to previous Arduinos.
Arduino UnoATmega328P16 MHzArduino2.7 in × 2.1 in [ 68.6 mm × 53.3 mm ]USB8U2[24](Rev1&2)/
16U2[13](Rev3)
5 V32121466September 24, 2010
Arduino Uno

This uses the same ATmega328 as late-model Duemilanove, but whereas the Duemilanove used an FTDI chip for USB, the Uno uses an ATmega16U2 (ATmega8U2 before rev3) programmed as a serial converter.
Arduino Mega2560ATmega2560             16 MHzMega4 in × 2.1 in [ 101.6 mm × 53.3 mm ]USB8U2[24](Rev1&2)/
16U2[13](Rev3)
5 V25648541516September 24, 2010
Arduino Mega2560

Total memory of 256 kB. Uses the ATmega16U2 (ATmega8U2 before Rev3) USB chip. Most shields that were designed for the Duemilanove, Diecimila, or Uno will fit, but a few shields will not fit because of interference with the extra pins.
Arduino EthernetATmega32816 MHzArduino2.7 in × 2.1 in [ 68.6 mm × 53.3 mm ]Ethernet Serial interfaceWiznet Ethernet5 V32121446July 13, 2011
Arduino Ethernet

Based on the same WIZnet W5100 chip as the Arduino Ethernet Shield. A serial interface is provided for programming, but no USB interface. Late versions of this board support Power over Ethernet (PoE).
Arduino FioATmega328P8 MHzminimal2.6 in × 1.1 in [ 66.0 mm × 27.9 mm ]XBee Serial3.3 V32121468March 18, 2010
Arduino Fio

Includes XBee socket on bottom of board.[32]
Arduino NanoATmega328
(ATmega168 before v3.0)
16 MHzminimal1.70 in × 0.73 in [ 43.18 mm × 18.54 mm ]USBFTDIFT232R[36]5 V16/320.5/11/21468May 15, 2008
Arduino Nano

This small USB-powered version of the Arduino uses a surface-mounted processor.
LilyPad ArduinoATmega168V or ATmega328V8 MHzwearable2 in ⌀51 mm ⌀2.7-5.5 V160.511466October 17, 2007
LilyPad Arduino

This minimalist design is for wearable applications.
Arduino Pro ATmega168 or ATmega32816 MHzArduino2.05 in × 2.1 in [ 52.1 mm × 53.3 mm ]UART Serial, I2C(TWI), SPIFTDI5 V or 3.3 V16/320.5/11/21466
Arduino Pro

Designed and manufactured by SparkFun Electronics for use in semi-permanent installations.
Arduino Mega ADKATmega256016 MHzMega4 in × 2.1 in [ 101.6 mm × 53.3 mm ]8U2[24]

MAX3421E
USB Host
5 V25648541416July 13, 2011
Arduino EsploraAtmega32U416 MHz6.5 in × 2.4 in [ 165.1 mm × 61.0 mm ]32U4[18]5 V3212.5December 10, 2012Analog joystick, four buttons, several sensors, 2 TinkerKit inputs and 2 outputs, LCD connector
Arduino MicroATmega32U416 MHzMini0.7 in × 1.9 in [ 17.8 mm × 48.3 mm ]5 V3212.520712November 8, 2012
Arduino Micro

This Arduino was co-designed by Adafruit.
Arduino Pro MiniATmega3288 (3.3 V)/16 (5 V) MHzMini0.7 in × 1.3 in [ 17.8 mm × 33.0 mm ]Six pin serial header3.3 V / 5 V32121466Designed and manufactured by SparkFun Electronics.

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