Development Boards

US$10.79
Even though it's as small as some of the LilyPad sensors, this board actually has an ATtiny microcontroller on it so it's actually pretty smart! Simply sew on 4 LEDs and connect a battery and the LEDs will twinkle-fade (a lot like fireflies... or lightning bugs, if that's what you call them).
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US$171.99

This is a multi-language voice synthesizer that converts a stream of digital text into natural sounding speech. Its simple command-based interface makes it easy to integrate into any embedded system. Features: High-quality speech synthesis for English and Spanish languages. Nine pre-defined voice styles comprising male, female, and child. Dynamic control of speech and voice characteristics, including pitch, speaking rate, and word emphasis.

Delivery within 2-3 weeks
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US$9.96
This is a breakout board design to use the MAX3232 chip. This is the RS232 converter IC that is capable of running at 3V and communicating with 5V logic.
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US$97.99

This is ABRA's very own comprehensive component kit for Arduino or embedded electronics projects. This kit allows you to perform many Arduino experiments and even allows you to develop your own Arduino shield. You'll get lots of sensors, a dc motor, a servo motor, breadboard and a 65 piece jumper wire kit. You'll also get the Arduino Shield Development Kit and an extra pcb.

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US$44.54

This Board is ideal for learning circuits, electronics, and microcontroller programming. Features include: Surface-mount BASIC Stamp 2 microcontroller, Onboard reset button and program activity LED, Solderless breadboard for building circuits, I/O pin, power and ground headers brought alongside breadboard, and much more.

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US$40.90
Using the ATmega32U4 as its sole microcontroller allows it to be cheaper and simpler. Code libraries allows the board to emulate a computer keyboard, mouse, and more. The Leonardo even sports 12 analog inputs! 
Delivery within 2-3 weeks
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US$1.96

Specifications: Pins have 0.1" spacing. Pins are 10.5mm (0.42") in length. Kit Contains: Two 6 pin female headers. Two 8 pin female headers. 

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US$0.63

Use this 6 pin female header with extra long pins for stacking shields on your Arduino. Pins have 0.1" spacing. Pins are 10.5mm (0.42") in length. 

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US$0.63

Use this 8 pin female header with extra long pins for stacking shields on your Arduino. Pins have 0.1" spacing. Pins are 10.5mm (0.42") in length.

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US$3.49

You get one single-sided phenolic board with copper solder pads and mounting holes. It's size of 3.2" x 2.5" (8.1cm x 6.3cm) is specially made for the Arduino Uno. Of course this board can be used for any electronic project.

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US$24.49

The MAX31855K does everything for you, and can be easily interfaced with any microcontroller, even one without an analog input. This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry, all assembled and tested.

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US$9.73

It is a patented design initially created for the POLOLU Orangutan Robot Controllers as an alternative to bulky mechanical switches.

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US$27.93
This device is a programmer for AVR-based controllers, such as the Pololu Orangutan robot controllers and the 3pi robot. The programmer emulates an STK500 on a virtual serial port, making it compatible with standard AVR programming software.
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US$14.45
By using simple i2c and SPI input/output expanders we have reduced the number of pins (only 2 pins are needed for i2c) while still making it easy to interface with the LCD.
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US$13.13

This breakout board has a microSD card slot for providing extra storage memory when required.

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