Arduino Comparison Guide
Uno or Pro Mini? Bluetooth or wireless? When it comes to Arduinos, there are a lot of choices. We've compiled every Arduino development board we carry, so you can quickly compare them to find the perfect one for your needs.
If you're not quite to the spec sheet stage yet, head over to our Choosing an Arduino for Your Project guide.
Arduino Ethernet w/o PoE
Quick take: Useful for making internet-connected projects where Ethernet is your only option. Separate USB-to-Serial board/cable is required for programming.
Processor:
ATmega328P
Clock Speed:
16 MHz
Flash Memory:
32KB
RAM:
2KB
Operating Voltage
5 V
GPIO
20
Analog Inputs
6
DAC
0
PWM
4
UART
1
SPI
1
I2C
1
Connector
6-pin UART
USB-to-Serial
None
LiPo Charger
No
Soldered Headers?
Yes
Shield Compatible
Yes
Form Factor
2.7 x 2.1 in. rectangle
Special Features
Ethernet
Arduino MKR1000 with Headers
Quick take: Official Arduino WiFi Board
Processor:
ATSAMW25H18
Clock Speed:
48 MHz
Flash Memory:
256KB
RAM:
32KB
Operating Voltage
3.3 V
GPIO
22
Analog Inputs
7
DAC
1
PWM
12
UART
1
SPI
1
I2C
1
Connector
USB Micro-B
USB-to-Serial
Native USB
LiPo Charger
Yes
Soldered Headers?
Yes
Shield Compatible
No
Form Factor
2.42 x 0.98 in. rectangle
Special Features
Wifi
Arduino MKR1000
Quick take: Official Arduino WiFi Board
Processor:
ATSAMW25H18
Clock Speed:
48 MHz
Flash Memory:
256KB
RAM:
32KB
Operating Voltage
3.3 V
GPIO
22
Analog Inputs
7
DAC
1
PWM
12
UART
1
SPI
1
I2C
1
Connector
USB Micro-B
USB-to-Serial
Native USB
LiPo Charger
Yes
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.42 x 0.98 in. rectangle
Special Features
Wifi
LightBlue Bean+
Quick take: Lots of features for getting started with BLE development.
Processor:
ATmega328P
Clock Speed:
8 MHz
Flash Memory:
32KB
RAM:
2KB
Operating Voltage
3.3 V or 5 V
GPIO
16
Analog Inputs
6
DAC
0
PWM
4
UART
1
SPI
1
I2C
1
Connector
USB Micro-B
USB-to-Serial
None
LiPo Charger
Yes
Soldered Headers?
Yes
Shield Compatible
No
Form Factor
2.56 x 1.38 in. rectangle
Special Features
Bluetooth Low Energy (BLE), over-th-air programming, accelerometer, temperature sensor.
Arduino Yun
Quick take: Like having an Arduino and single board computer in one package. Linux commands can be called from the 32U4 and Python scripts can be written to run on the Atheros.
Processor:
ATmega32U4
Clock Speed:
16 MHz
Flash Memory:
32KB
RAM:
2.5 KB
Operating Voltage
5 V
GPIO
20
Analog Inputs
12
DAC
0
PWM
7
UART
1
SPI
1
I2C
1
Connector
Micro USB
USB-to-Serial
Native USB
LiPo Charger
No
Soldered Headers?
Yes
Shield Compatible
Yes
Form Factor
2.7 x 2.1 in rectangle
Special Features
Linux single board computer with Atheros AR9331 @ 400MHz, USB Host, WiFi, Ethernet
Realtek Ameba Board
Quick take: WiFi and NFC radios with a powerful microcontroller.
Processor:
RTL8195AM
Clock Speed:
166 MHz
Flash Memory:
1 MB
RAM:
2.5 MB
Operating Voltage
3.3 V
GPIO
25
Analog Inputs
2
DAC
1
PWM
4
UART
3
SPI
2
I2C
2
Connector
USB Micro-B
USB-to-Serial
LPC11U35
LiPo Charger
No
Soldered Headers?
Yes
Shield Compatible
Yes
Form Factor
3.94 x 2.44 in rectangle
Special Features
WiFi, NFC, USB OTG
Arduino Dock R2 for Onion Omega
Quick take: Useful for getting better GPIO control or real-time applications with the Omega2. Requires Omega2 or Omega2+ to work.
Processor:
ATmega328P
Clock Speed:
16 MHz
Flash Memory:
32 KB
RAM:
2 KB
Operating Voltage
5 V
GPIO
34
Analog Inputs
6
DAC
0
PWM
7
UART
2
SPI
2
I2C
2
Connector
USB Micro-B
USB-to-Serial
None
LiPo Charger
No
Soldered Headers?
Yes
Shield Compatible
Yes
Form Factor
3.5 x 2.1 in rectangle
Special Features
Dock for Omega2
Arduino Industrial 101
Quick take: Small form-factor version of the Arduino Yun.
Processor:
ATmega32U4
Clock Speed:
16 MHz
Flash Memory:
32 KB
RAM:
2.5 KB
Operating Voltage
5 V
GPIO
8
Analog Inputs
5
DAC
0
PWM
2
UART
0
SPI
1
I2C
0
Connector
USB Micro-B
USB-to-Serial
Native USB
LiPo Charger
No
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.1 x 1.7 in rectangle
Special Features
Linux single board computer with Atheros AR9331 @ 400 MHz, USB Host, WiFi, Ethernet
SparkFun ESP32 Thing
Quick take: Lots of features and powerful processor but software can be complicated. Many Arduino libraries not supported (yet).
Processor:
Tensilica LX6
Clock Speed:
240 MHz
Flash Memory:
4 MB
RAM:
520 KB
Operating Voltage
3.3 V
GPIO
28
Analog Inputs
18
DAC
2
PWM
16
UART
3
SPI
3
I2C
2
Connector
USB Micro-B
USB-to-Serial
FTDI FTS31XS
LiPo Charger
Yes
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.32 x 1 in rectangle
Special Features
WiFi, Bluetooth, BLE
SparkFun ESP8266 Thing
Quick take: Low power and inexpensive WiFi development board. Separate USB-to-Serial board/cable is required for programming.
Processor:
Tensilica L106
Clock Speed:
80 MHz
Flash Memory:
512 KB
RAM:
96 KB
Operating Voltage
3.3 V
GPIO
11
Analog Inputs
1
DAC
0
PWM
11
UART
1
SPI
1
I2C
1
Connector
6-pin UART
USB-to-Serial
None
LiPo Charger
Yes
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.18 x 1.02 in. rectangle
Special Features
WiFi, temperature and light sensors
SparkFun ESP8266 Thing Dev Board
Quick take: Low power and inexpensive WiFi development board.
Processor:
Tensilica L106
Clock Speed:
80 MHz
Flash Memory:
512 KB
RAM:
96 KB
Operating Voltage
3.3 V
GPIO
11
Analog Inputs
1
DAC
0
PWM
11
UART
1
SPI
1
I2C
1
Connector
USB Micro-B
USB-to-Serial
FTDI FTS31XS
LiPo Charger
No
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.18 x 1.02 in. rectangle
Special Features
WiFi, temperature and light sensors
SparkFun ESP8266 Thing Dev Board with Headers
Quick take: Low power and inexpensive WiFi development board.
Processor:
Tensilica L106
Clock Speed:
80 MHz
Flash Memory:
512 KB
RAM:
96 KB
Operating Voltage
3.3 V
GPIO
11
Analog Inputs
1
DAC
0
PWM
11
UART
1
SPI
1
I2C
1
Connector
USB Micro-B
USB-to-Serial
FTDI FTS31XS
LiPo Charger
No
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.18 x 1.02 in. rectangle
Special Features
WiFi, temperature and light sensors
SparkFun Blynk Board - ESP8266
Quick take: Easiest way to get started making projects with the Blynk app.
Processor:
Tensilica L106
Clock Speed:
80 MHz
Flash Memory:
4 KB
RAM:
96 KB
Operating Voltage
3.3 V
GPIO
10
Analog Inputs
1
DAC
0
PWM
10
UART
1
SPI
1
I2C
1
Connector
USB Micro-B
USB-to-Serial
FTDI FTS31XS
LiPo Charger
Yes
Soldered Headers?
No
Shield Compatible
No
Form Factor
1.97 x 1.65 in. rectangle
Special Features
WiFi, temperature and humidity sensor, preconfigured with Blynk
SparkFun nRF52832 Breakout
Quick take: Powerful but complex BLE development board.
Processor:
nRF52832
Clock Speed:
64 MHz
Flash Memory:
512 KB
RAM:
64 KB
Operating Voltage
3.3 V
GPIO
32
Analog Inputs
8
DAC
0
PWM
12
UART
1
SPI
3
I2C
2
Connector
6-pin UART
USB-to-Serial
None
LiPo Charger
No
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.05 x 0.70 in. rectangle
Special Features
BLE, configurable NFC tag
RedBearLab BLE Nano Kit v2 - nRF52832
Quick take: Powerful BLE board with Arduino libraries and examples.
Processor:
nRF52832
Clock Speed:
64 MHz
Flash Memory:
512 KB
RAM:
64 KB
Operating Voltage
3.3 V
GPIO
11
Analog Inputs
6
DAC
0
PWM
11
UART
1
SPI
2
I2C
1
Connector
DAPLink USB board
USB-to-Serial
None
LiPo Charger
No
Soldered Headers?
No
Shield Compatible
No
Form Factor
0.83 x0.73 in. rectangle
Special Features
BLE, configurable NFC tag
SparkFun Simblee BLE Breakout - RFD77101
Quick take: BLE with ability to send user interfaces to smartphones. Separate USB-to-Serial board/cable is required for programmming.
Processor:
Simblee RFD77101
Clock Speed:
16 MHz
Flash Memory:
128 KB
RAM:
24 KB
Operating Voltage
3.3 V
GPIO
29
Analog Inputs
6
DAC
0
PWM
4
UART
1
SPI
1
I2C
1
Connector
6-pin UART
USB-to-Serial
None
LiPo Charger
No
Soldered Headers?
No
Shield Compatible
No
Form Factor
2.3 x 0.9 in. rectangle
Special Features
BLE
RFduino - Simblee DIP
Quick take: BLE with ability to send user interfaces to smartphones. RFduino USB Sheild is required for programming.
Processor:
Simblee RFD77101
Clock Speed:
16 MHz
Flash Memory:
128 KB
RAM:
24 KB
Operating Voltage
3.3 V
GPIO
7
Analog Inputs
6
DAC
0
PWM
4
UART
1
SPI
1
I2C
1
Connector
None
USB-to-Serial
None
LiPo Charger
No
Soldered Headers?
Yes
Shield Compatible
No
Form Factor
0.93 x 0.90 in. rectangle
Special Features
BLE
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