Buy ‘arduino’ with Bitcoin – Spendabit

Nano 3.0 Atmel Atmega328P Mini-USB Board for Arduino

$2.64 at FastTech

Arduino M0 Pro - 32 bit Cortex M0 with Debug Interface

$39.95 at Adafruit

ESP8266 Wifi Development Board for Arduino IDE UNO WeMos D1

$4.73 at FastTech

IR Infrared Flame Sensor Module for Arduino

$0.86 at FastTech

5-Key Analog AD Keyboard Module for Arduino

$1.83 at FastTech

Arduino Compatible UNO Starter Kit (DIY Electronic Parts Category)

$94.95 at Gadgets Direct

Arduino Nano V3.0

Arduino Leonardo ATmega32u4 without headers

$22.50 at Adafruit

Arduino Compatible Improved Version Nano V3.0 Board

$3.97 at FastTech

DHT11 Digital Temperature Humidity Sensor Module for Arduino

$1.80 at FastTech

BH1750FVI Arduino Compatible Digital Light Sensor Module

$1.68 at FastTech

Arduino Starter Kit from Arduino.cc

$99.95 at Adafruit

Arduino Compatible 2.6" LCD 1602 Display Shield Module

$2.25 at FastTech

Arduino Mega R3 Android Accessory Development Kit (ADK) Board - ATmega2560 ADK R3

$84.95 at Adafruit

Arduino Compatible Sensor Expansion Board V4.0

$2.84 at FastTech

4X Numeric LED Display Digital Tube Module for Arduino (Works w/ Official Arduino Boards)

$2.71 at FastTech

Expansion Board for Arduino Prototype Proto Shield

$2.65 at FastTech

Adafruit METRO 328 Fully Assembled - Arduino IDE compatible - ATmega328

$24.95 at Adafruit

Arduino Compatible Improved Version Nano V3.0 Development Board

$3.52 at FastTech

Patch shield for Arduino - v5.01

$19.50 at Adafruit

Arduino Mega2560 Rev3

Basic Starter Learning Kit for Arduino UNO R3 Development Board

$13.31 at FastTech

FLORA - Wearable electronic platform: Arduino-compatible - V3

$14.95 at Adafruit

Seeeduino Lite - ATmega32u4

$21.95 at Adafruit

Microphone Sound Detection Sensor Shield Module for Arduino

$2.37 at FastTech

Arduino Compatible Mega 2560 R3 Development Board

$10.39 at FastTech

KEYES KY-008 Arduino Compatible 650nm Laser Transmitter Module

$1.19 at FastTech

Golden Limited MCU Extension 4x4 16-Key Matrix Keyboard Module for Arduino

$1.06 at FastTech

Arduino MKR1000

$44.95 at Adafruit

2.8" TFT Touch Shield for Arduino - 2.8"

$59.00 at Adafruit

Arduino UNO Rev3

Acrylic Base for Arduino UNO R3

$3.08 at FastTech

4-pin Female to Female Dupont Jumper Wire Cable for Arduino 3D Printers

$0.93 at FastTech

Arduino Due - assembled - Due

$49.95 at Adafruit

Arduino YUN (YÚN)

$74.95 at Adafruit

Arduino Leonardo ATmega32u4 with headers

$24.95 at Adafruit

Clear Enclosure for Arduino - Electronics enclosure - 1.0

$15.00 at Adafruit

White Enclosure for Arduino - Electronics enclosure - 1.0

$15.00 at Adafruit

Arduino Micro - Electronic building kit

2.8" TFT Touch Shield for Arduino with Resistive Touch Screen

$34.95 at Adafruit

Arduino Zero - 32 bit Cortex M0 Arduino with Debug Interface

$54.95 at Adafruit

Robotics Shield Kit for Arduino - Parallax

$159 at RoboSavvy

Sylvia's Super Awesome Project Book - Super Simple Arduino

$14.95 at Adafruit

Beginning NFC with Arduino, Android, and PhoneGap

$34.95 at Adafruit

Plastic mounting plate for breadboard and Arduino - rubber feet

$5.00 at Adafruit

Adafruit Wave Shield for Arduino Kit - v1.1

$22.00 at Adafruit

Music & sound add-on pack for Arduino - v1.1

$35.00 at Adafruit

Proto-Screwshield (Wingshield) R3 Kit for Arduino

$14.95 at Adafruit

Sous-vide powered by Arduino kit pack - The SousViduino

$99.95 at Adafruit

Adafruit MENTA - Mint Tin Arduino Compatible Kit with Mint Tin

$35.00 at Adafruit

Arduino connection kit

Arduino Duemilanove

$27.95 at Evil Mad Scientist

Gravity: 27 Pcs Sensor Kit for Arduino

$109 at ModMyPi LTD

Make: Bluetooth LE Projects for Arduino, RasPi, and Smartphones

$29.95 at Adafruit

Gameduino 2 with 4.3" 480x272 Display and Touchscreen

$69.95 at Adafruit

DIY Gamer Kit from Technology Will Save Us

$56.95 at Adafruit

Adafruit Motor/Stepper/Servo Shield for Arduino kit - v1.2

$19.50 at Adafruit

Arduino Ethernet Shield 2

$33.10 at RoboSavvy

Keyes MOS Driving Module for Arduino

$1.62 at FastTech

Arduino Mega 2560 R3

$52.33 at RoboSavvy