Shield - Xbee w / o RF module (A000021)

A-Star 32U4 Prime SV - a programmable Arduino board, based on the Atmel ATmega32U4 microcontroller from the AVR family. Version with soldered connectors, without micro-SD card slot, without display. Polol 3113

The Pololu A-Star 32U4 Prime is a general-purpose programmable board based on Atmel’s ATmega32U4 AVR microcontroller and arranged in the common Arduino form factor exemplified by the Uno R3 and Leonardo. Pololu 3114

The A-Star 32U4 Prime SV is a programmable board based on Atmel’s ATmega32U4 microcontroller and arranged in the common Arduino form factor. The A-Star Prime offers many additional features and improvements over competing products. Pololu 3115

The A-Star 32U4 Mini LV is a programmable module based on the ATmega32U4 from Atmel. Unlike competing products, it has an onboard switching step-up/step-down regulator that allows it to be powered efficiently from a 2.7 V to 11.8 V supply. Pololu 3103

The A-Star 32U4 Mini ULV is a programmable module based on the ATmega32U4 from Atmel. Unlike competing products, it has an onboard switching step-up regulator that allows it to be powered efficiently from a 0.5 V to 5.5 V supply. Pololu 3102

Based on the versatile ATmega328, the Metro Mini packs 32KB Flash, 2KB RAM, a clock speed 16Mhz and the Optiboot bootloader. The slick black and gold unit includes 20 GPIO pins. Adafruit 2488 

The Arduino Ethernet Shield 2 allows an Arduino Board to connect to the internet. It is based on the Wiznet W5500 Ethernet chip. The Wiznet W5500 provides a network (IP) stack capable of both TCP and UDP. There is an onboard micro-SD card slot, which can be used to store files for serving over the network. It is compatible with the Arduino Uno and Mega

This blue case from Arduino is specifically for the Arduino Yun and Arduino Yun with PoE boards. The case has easy access to all board connections. M000008

A set of sensors for Arduino - sensors for light, touch, temperature, magnetic field, vibration, tilt, shade of gray, module with LED, button. DFRobot DFR0018

A set of basic electronic components complete with a contact plate, connecting cables and a DFRduino UNO R3 board. The attached cards with connection diagrams help create on the basis of a set of 15 interesting projects. DFRobot DFR0100

Dreamer Nano V4 - Arduino Leonardo compatible; ATmega 32U4

Intermediate Kit for Arduino V2, The Arduino beginner kit - KIT0018

IoT development board the size of Arduino, equipped with an ARM Cortex-M3 processor (STM32F205) and a Wi-Fi communication module (with an integrated antenna and uFL connector). SparkFun DEV-13321

Beetle BLE is another milestone in wearable electronics device area based Arduino Uno, which makes DIY users have more options in the project design. It is fully compatible with Bluno in instructions and procedures, supporting Bluetooth HID and ibeacon modes. And it not only supports USB programming, but also wireless programming method. DFR0339

Cable with USB plugs type A and micro-USB (type B), cable length 1.8 m

Tiny (18 x 44 mm) breadboard-friendly development board, easy to use, hacker friendly. ATmega328 brains32KB of flash (1/2 K is reserved for the bootloader), 2KB of RAM, clocked at 16MHz. Adafruit 2590