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.
SparkFun Thing Plus - ESP32 WROOM
Quick take: The SparkFun ESP32 Thing Plus is the next step to get started with Espressif IoT ideations while still enjoying all the amenities of the ESP32 Thing.
Processor:
Dual-core Tensilica LX6
Clock Speed:
240 MHz
Flash Memory:
16MB
RAM:
32KB SRAM
Operating Voltage
2.3 to 3.6V
GPIO
21
Analog Inputs
6
DAC
2
PWM
16
UART
3
SPI
3
I2C
2 + Qwiic Connector
Connector
USB Micro-B
USB-to-Serial
CP2104/2N
LiPo Charger
Yes
Soldered Headers?
Yes
Shield Compatible
Yes
Form Factor
2.30 in x .9 in rectangle
Feather
Special Features
Wifi and Bluetooth
SparkFun Thing Plus - ESP32-S2 WROOM
Quick take: The SparkFun ESP32-S2 WROOM Thing Plus is a highly-integrated, Feather form-factor development board equipped with the 2.4 GHz WiFi SoC.
Processor:
Dual-core Tensilica LX7
Clock Speed:
240 MHz
Flash Memory:
4MB embedded SPI
RAM:
320kB SRAM
Operating Voltage
2.3 to 3.6V
GPIO
21
Analog Inputs
6
DAC
2
PWM
8
UART
2
SPI
4
I2C
2 + Qwiic Connector
Connector
USB-C
USB-to-Serial
CP2104/2N
LiPo Charger
Yes
Soldered Headers?
Yes
Shield Compatible
Yes
Form Factor
2.30 in x .9 in rectangle
Feather
Special Features
Wifi and Bluetooth
Arduino MKR WiFi 1010
Arduino MKR WiFi 1010
DEV-15251Quick take: The MKR WIFI 1010 uses a UBlox WiFi module based on Espressif's ESP32 chipset.
Processor:
SAMD21 Cortex M0+
Clock Speed:
48 MHz
Flash Memory:
256KB
RAM:
32KB SRAM
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
61.5mm x 25mm rectangle
Special Features
Wifi
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
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
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
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