Adafruit

US$22.95
This chip can control 24 separate channels of 12-bit PWM output. Designed (and ideal) for LED control, this board is not good for driving servos.
Delivery within 2-3 weeks
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US$12.17
The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they have a genuine JST connector, not a knock-off, the cable wont snag or get stuck in a matching JST jack, they click in and out smoothly.
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US$5.17
Each LED is encased in a 3.5mm thick strip of a acrylic.
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US$2.63
This electret capsule microphone is the same one we use in our great microphone amplifier board. It contains a small vibrating element that will output a few milllivolts peak-to-peak.
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US$13.92
These pixels have full 24-bit color ability with PWM taken care of by the controller chip. Since the LED is so bright, you need less current/power to get the effects you want.
Delivery within 2-3 weeks
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US$7.00
This breakout has a fine pitch (0.5mm) connector soldered onto it and it's broken out into the 4 resistive wires of the panel.
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US$8.96
These emit UV 'blacklight' in the UVA spectrum so they are great for projects with fluorescent materials referred to as UV/blacklight-reactive or 'glow-in-the dark'.
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US$5.17
Add another 16 pins to your microcontroller using a MCP23017 port expander. The MCP23017 uses two i2c pins (these can be shared with other i2c devices), and in exchange gives you 16 general purpose pins. You can set each of 16 pins to be input, output, input with a pullup or open drain.
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US$43.75

This is a USB Arduino compatiable kit with an ATmega328 chip. This development board acts just like an Arduino, and works with the latest Arduino software. 

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US$3.42
Fits any standard AAA battery. When using rechargeable NiMH the output voltage will range from about 3.7V with charged batteries to 2.7V at the end of life with a nominal voltage of 3.6V. When using alkalines, the output will range from 4.6V with new batteries to 3.3V at the end of life with a nominal voltage of about 4.5V
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US$46.45
For those who want to integrate our awesome Ultimate GPS module into their own projects, we now have the raw sub-module available. Don't be fooled by it's small size, this is a very sensitive, high quality GPS module with all the extras you could want and more at under 6 grams! This module is built around the MTK3339 chipset, a no-nonsense, high-quality GPS module that can track up to 22 satellites on 66 channels, has an excellent high-sensitivity receiver (-165 dB tracking!), and a built in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging or tracking. Power usage is incredibly low, only 20 mA during navigation.
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US$24.50
A stepper motor to satisfy all your robotics needs! This 4-wire bipolar stepper has 1.8° per step for smooth motion and a nice holding torque. The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit motor shield for Arduino (or other motor driver) and a wall adapter or lead-acid battery.
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US$13.13
This is the perfect addition to any audio project where you need 4 ohm impedance and 3W or less of power. This is a set of two 2.8" x 1.2" speakers. We particularly like these speakers as they are small and enclosed for good audio volume and quality.
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US$10.42
We fit seven of our the tiny 5050 (5mm x 5mm) smart RGB LEDs onto a beautiful, round PCB with mounting holes and a chainable design to create what we think is our most elegant (and evening-wear appropriate) NeoPixel board yet.
Delivery within 2-3 weeks
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US$140.00

This clock kit is a open source platform for designing clock display and others. MONOCHRON® is a new clock kit from Adafruit! This easy kit is easily hackable to do whatever you wish, it's a clock platform - have fun! 128x64 LCD (KS0108) - we special-ordered the black and white display!

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