Development Boards

US$1.33
This has the same number and spacing of pins as the Raspberry Pi so you can easily connect via ribbon cable to the low-level peripherals and get hacking! 
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US$4.13

This 2x13 flat ribbon-cable fits the GPIO headers on the Raspberry Pi so you can easily connect to the low-level peripherals and get hacking! 

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US$26.17
Take advantage of the Raspberry Pi and Beagle Bone's USB port to add a low cost, but high-reliability wireless link.
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US$10.42
This is a nice solution to wanting to use PS/2 devices (such as our capacitive touch pad or magstripe readers). It's also handy if you want to connect a keyboard and mouse to a Raspberry Pi or Beagle Bone without taking up two USB ports.
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US$6.92
The jack half has two mounting 'ears' with M3 screws installed, 1 inch / 25.4mm apart. Can be used with box walls 0.125" to 0.25" wide. If you have a thinner-walled box, simply swap out the M3 screws for shorter ones. Entire cable is 6"/150mm long.
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US$5.17
This 6 foot long cable converts a standard 3.5mm stereo jack to two color-coded mono RCA coaxial jacks.
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US$32.99

Simply select the appropriate components, sensors and control elements for a project and experience the powerful Analog to Digital hardware interface and open source Processing Programming Language for Arduino Uno. Power for the Arduino is supplied through the USB cable while connected to a computer. 

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US$12.17
Add an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on.
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US$14.88
This module provides the flexbility to power most application range from 3.6V- 25V.  You can choose 5V direct output voltage with the switch or adjust the output voltage by the blue&white resistor.
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US$172.50
The LEA-6H is a high performance stand-alone GPS and GALILEO receiver module designed to allow easy, straightforward migration from its LEA-4 predecessors. It features u-blox' KickStart weak signal acquisition technology, as well as flexible connectivity options. The LEA-6H comes with built-in Flash memory that enables firmware updates and the storage of specific configuration settings in a non-volatile RAM.
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US$13.93
The Arduino-Compatible Screw Shield is a terminal expansion board that can be screwed directly to the terminal on the thread and is reliable and convenient. It can be plugged into the Arduino controller. You can use this shield to save yourself from the bad port connection. Feel secure with this arduino-compatible screw shield.
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US$19.59
Basically you can put everything from Arduino board to sensors, even a motor on top of it.  It fits M2-M3 screws.
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US$25.13
This shield uses L298P chip which allow to drive two 7-12V DC motors with maximum 2A current. This shield can be directly mount onto standard Arduino Duemilanove and Arduino Mega.
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US$34.93
Supports 8 digital inputs, 8 darlington driver outputs and 4 analogue channels. Includes input/output ribbon cables (microcontroller not included). Add a L293D motor driver chip to add reversible motor output capabilities.
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US$32.13
This is designed to enable you to rapidly create a robot based upon a PICAXE-28X2 or Arduino controller. Simply push the shield onto your controller, connect your motors, sensors and servos and you can have a working robot within just a few minutes!
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