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Compare different types of Arduino boards with this spreadsheet.

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For updates, leave comments at this page: http://www.cmiyc.com/projects/arduino-comparison-chart/james@cmiyc.com
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ProcessorInput / OutputPowerConnectivity
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Board NameFamilySRAMFLASHEEPROMClockUARTPWMAnalog OutDAC BitsDigitalAnalog InADC BitsVCCVin Range5V3V3BattUSB-SerialI2CCANBluetoothEthernetUSB-HostSD CardXBeeJTAGManufacturerNotes
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1Arduino DueSAM3X8E96kb512kbN/A84MHz4122127012123.3V7-12VNoVCCN/ABuilt-In2YesNoNoYesNoNoYesSmall ProjectsARM-Based. All I/O is 3V3 only.
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2Duemilanove (328)ATmega3282K32k1k16MHz16N/AN/A146105V7-12VYesYesN/AATmega16U21NoNoNoNoNoNoNoSmall Projects
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3Uno (R3)ATmega3282k 32k1k16MHz16N/AN/A146105V7-12VYesYesN/AATmega16U21NoNoNoNoNoNoNoSmall Projects
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4Arduino Mega 2560ATmega25608k256k4k16MHz414N/AN/A5416105V7-18VYesYesN/AATmega16U21NoNoNoNoNoNoNoSmall ProjectsSPI and I2C are in different places from Uno
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4Arduino Mega ADKATmega25608k256k4k16MHz414N/AN/A5016105V7-18VYesYesN/AATmega16U21NoNoNoMAX3421ENoNoNoSmall ProjectsActing as USB Host requires external power
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5Arduino EthernetATmega3282k32k1k16MHz14N/AN/A961056-18VYesYesN/AN/A1NoNoW5100NoNoNoNoSmall ProjectsCannot be programmed over Ethernet; PoE is 36-57V; Pin 9 has LED instead of Pin 13
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6Arduino BTATmega3282k32k1k16MHz16N/AN/A146105.5V1.2V-5.5VYesSortaN/ABluegiga WT111NoSerialNoNoNoNoNoSmall ProjectsEmulates Bluetooth-Serial Port
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7Arduino Pro Mini 328 5VATmega3282k32k1k16MHz16N/AN/A146105V5-12VYesNoN/AN/A1NoNoNoNoNoNoNoSparkFunNon-standard pin layout
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8Arduino Nano 3.0ATmega3282k32k1k16MHz16N/AN/A1481057-12VYesYesN/AFTDI FT232RL1NoNoNoNoNoNoNoGravitechNon-standard pin layout
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9Arduino MiniATmega3282k32k1k16MHz16N/AN/A1481057V-9VYesNoN/AN/A1NoNoNoNoNoNoNoSmall ProjectsNon-standard pin layout
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10Arduino Pro 3.3VATmega3282k32k1k8MHz16N/AN/A146103.3V3.35-12VNoYesLiPoN/A1NoNoNoNoNoNoNoSparkFun
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11Arduino Pro 5VATmega3282k32k1k16MHz16N/AN/A146105V5-12VYesNoLiPoN/A1NoNoNoNoNoNoNoSparkFun
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12Arduino FioATmega3282k32k1k8MHz16N/AN/A148103.3V3.35-12VVCCLiPoN/A1NoNoNoNoNoNoNoSparkFunDesigned for XBee, and LiPo Charging; Non-standard pin layout
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13LilyPad Simple BoardATmega1681k16k5128MHz15N/AN/A94102.7-5.5V2.7-5.5VN/AN/AN/A1NoNoNoNoNoNoNoSparkFunWearable, Round, Multiplex Analog and Digitals
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14LilyPad 328 Main BoardATmega3282k32k1k8MHz16N/AN/A146102.7-5.5VN/AN/AN/AN/A1NoNoNoNoNoNoNoSparkFunWearable, Round
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15TeensyduinoATmega32U42.5k32k1k16MHz17N/AN/A2512105V3.3V-5VVCCVCCN/ABuilt-In1NoNoNoNoNoNoNoPJRCTeensy has built-in USB PLL. Requires software added to IDE. See pjrc.com
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16LeonardoATmega32U42.5k32k1k16MHz17N/AN/A2512105V3.3V-5VVCCVCCN/ABuilt-In1NoNoNoNoNoNoNoSmall Projects
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17SeeeduinoATmega3282k32k1k16MHz16N/AN/A146105V3.3V-12VVCCYesN/AFTDI FT232RL1NoNoNoNoNoNoNoSeeedStudioMiniUSB. Includes Grove Connections. SMD ATmega Chip, not DIP
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18Seeeduino EthernetATmega3282k32k1k16MHz16N/AN/A146105V3.3V-12VVCCYesN/AN/A1NoNoW5100NoYesNoNoSeeedStudioNo on-board USB-to-Serial
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19Seeeduino Stalker V2.0ATmega3282k32k1k16MHz16N/AN/A146105V3.3V-5VVCC?LiPoN/A1NoNoNoNomicroSDSocketNoSeeedStudioIncludes on-board RTC (DS3231)
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20Seeeduino FilmATmega1681k16k5128MHz16N/AN/A146103.3V3V-3.6VN/AVCCLiPoN/A1NoNoNoNoNoNoNoSeeedStudioBuilt on flexible circuit material
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21Arduino MicroATmega32u42.5k32k1k16MHz17N/AN/A2512105V3.3V-5VVCCVCCN/ABuilt-In1NoNoNoNoNoNoNoSmall ProjectsBreadboard form factor of Leonardo
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