Development Boards

US$11.10
This is a simple Op Amp breakout board, set up as a 2-stage amplifier with a gain of 100 (gain of 10 for each stage). The on-board trim pot sets the signal level between the stages, not the feedback path. The bandwidth is set to 15.9kHz by a pair of feedback capacitors, or over 100kHz with the caps removed.
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US$1.92
This is a small PCB that brings out the pins of the RJ45 connector to an in-line 0.1" footprint. Use with break-away headers for breadboarding or create your own RJ45 cable connection.
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US$4.10

This is a PCB for the Thumb Joystick. Pins are broken out to a 0.1" header and includes 4 mounting holes in the corners. Dimensions: 1" X 1.25"

Delivery within 2-3 weeks
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US$9.76
This is a board designed for opto-isolation and electrically isolates a controller from the high-power system by use of an opto-isolator IC. This board is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system.
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US$3.50
This is a PCB for the LED tactile button and easy to use on your next project. Populate the board according to the polarity of the LED on the switch. The markings for the switch are irrelevant and can be reversed.
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US$41.99
This is a low power 3-axis angular rate sensor featuring temperature data as an added bonus. Raw angular rate and temperature data measurements are accessed from the selectable digital I2C or SPI interface.
Delivery within 2-3 weeks
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US$6.93
This is a simple breakout board that uses a vertical SMD connector for the EM401 or EM406 GPS module cables.
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US$6.93
This is a small PCB that adapts the standard Microchip 6-Pin RJ11 connector to the Olimex 6-Pin .1" Molex Connector.
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US$10.17
This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This chip can be used to connect 16 analog sources (like sensors) to 5 pins on a microcontroller.
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US$15.33
This is a tiny breakout board and the microphone's input can fit flush against the enclosure of your project. The amplifier on the breakout has a gain of 67 and more than meets the bandwidth requirements of the mic.
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US$20.93

A great way to build simple capacitive touch interfaces, and now it's even easier to incorporate into your Arduino projects with the touch shield. The touch shield has 9 capacitive touch pads, with headers for the remaining 3 electrode connections. With this shield you can have a total of 12 touch sensitive buttons.

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US$26.52

This is a basic breakout board for the FTDI FT232RL USB to serial to work with official Arduino and cloned 5V Arduino boards.

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US$35.27

This is a FTDI cable converter which allows for a simple way to connect serial (TTL) interface devices to USB. but also configured to operate at 5V with 3.3V I/O. The FTDI cable is designed around an FT232RQ, which is housed in a USB A connector.

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US$111.93
This  is a package GPS Shield Kit with EM406 GPS receiver and headers included inside a a clear clamshell. Adding GPS to your Arduino has never been easier. Multiple GPS receivers attach easily to the shield, and with the example sketch, you will be able to locate your exact position within a few meters.
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US$23.73

This can equip your Arduino with mass-storage capability, so you can use it for data-logging or other related projects. All new microSD shields have a voltage converter chip on-board that converts the Arduino 5V signals to 3.3V signals in accordance with SD specifications.

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