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1518-ADA Flex Perma-Proto - Half-sized Breadboard Flex-PCB
1518-ADA Flex Perma-Proto - Half-sized Breadboard Flex-PCB
US$13.13
It's extremely bendable, and you can cut it easily with scissors. It has a bend radius of 1cm or better (you can also crease it but that might break a trace if you crease a trace) and you can solder any components to the pads.
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1475-ADA USB Audio Adapter - Works with Raspberry Pi
1475-ADA USB Audio Adapter - Works with Raspberry Pi
US$8.67
For when you want better audio for music playback, a USB audio card can greatly improve the sound quality and volume. We like this particular dongle for not being too bulky, you can plug it in without blocking the secondary USB port.
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1501-ADA Trinket - Mini Microcontroller - 5V Logic
1501-ADA Trinket - Mini Microcontroller - 5V Logic
US$13.92
It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. They wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation.
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1512-ADA Lock-style Solenoid - 12VDC
1512-ADA Lock-style Solenoid - 12VDC
US$26.17
Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center of the coil. This makes the solenoid able to pull from one end. 
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1222-ADA Gemma - Miniature wearable electronic platform
1222-ADA Adafruit GEMMA v2 - Miniature wearable electronic platform
US$16.97
Love FLORA but want a bite-sized version? Look no further, GEMMA is a tiny wearable platform board with a lot of might in a 1" diameter package. Powered by a Attiny85 and programmable with an Arduino IDE over USB, you'll be able to realize any wearable project!
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260-ADA USB cable - A/MiniB - 3ft
260-ADA USB cable - A/MiniB - 3ft
US$4.98

This here is your standard A-miniB USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Teensy, USB Lipo charger (among other things). Approximately 3 feet / 1 meter long. 

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1317-ADA Lithium Ion Polymer Battery - 3.7v 150mAh
1317-ADA 3.7v 150mAh Lithium Ion Polymer Battery
US$10.42
The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 150mAh for a total of about 0.6 Wh. The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and include the necessary protection circuitry.
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1116-ADA Board Edge Mounting Kit - Pack of 4
1116-ADA Board Edge Mounting Kit - Pack of 4
US$6.03

Instead of gluing, taping, epoxying, etc. use these elegant standoffs. They have these round hook things that are designed to grip standard 0.062" thickness PCBs either by the edge or by the corner. Comes in a pack of 4 with matching #6 thread forming screws. Ideal for use with up to 1/8" mounting material.

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1459-ADA Inductive Charging Set - 3.3V @ 500mA max -
1459-ADA Inductive Charging Set - 3.3V @ 500mA max
US$17.42
This is a basic charger set, and it does work, providing 3.3V DC output from the output half when the input half is powered with 9V to 12VDC. You can draw as much as 500mA if the coils are 2 or 3 mm apart.
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1451-ADA Diffused 'Piranha' Super-flux RGB LED (10 pack)
1451-ADA Diffused 'Piranha' Super-flux RGB LED (10 pack)
US$19.17
90 degree viewing angle. You can plug these into a breadboard diagonally. These are Common-Anode type which means you connect one pin to 5V or so and then tie the other three legs to ground through a resistor.
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1450-ADA Analog Feedback Micro Servo - Metal Gear
1450-ADA Analog Feedback Micro Servo - Metal Gear
US$26.17
Dimensions: 11.58mm / 0.45" x 22.75mm / 0.89" x 29.19mm / 1.14", Max Dimensions: 11.58mm / 0.45" x 32.74mm / 1.28" x 31.19mm / 1.22", Wire length: 131.67mm / 5.18",  Torque: 25 oz*in / 1.8 kg*cm @6V, Speed: 0.1 sec/60° @6V.
Delivery within 2-3 weeks
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1465-ADA 6-pin AVR ISP Breadboard Adapter Mini Kit
1465-ADA 6-pin AVR ISP Breadboard Adapter Mini Kit
US$2.02
A simple breakout, 2x3 in the center, two 1x3's on the side. Plugs into any breadboard for neat wiring (in both nifty and clean senses of the word). Comes with a quality mini PCB, a 2x3 pin header and a small stick of 0.1" header.
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492-ADA LED Illuminated Pushbutton - 30mm Round
492-ADA LED Illuminated Pushbutton - 30mm Round
US$7.61
A button is a button, and a switch is a switch, but this LED illuminated arcade buttons is in a class of its own. Its the same size as a 'standard' 30mm arcade but has a built in LED that can be controlled separately from the switch action - either to indicate or just to look good. 
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1463-ADA NeoPixel Ring - 16 x WS2812 5050 RGB LED with Integrated Drivers
1463-ADA NeoPixel Ring - 16 x WS2812 5050 RGB LED with Integrated Drivers
US$17.42
16 ultra bright smart LED NeoPixels are arranged in a circle with 1.75" (44.5mm) outer diameter. The rings are 'chainable' - connect the output pin of one to the input pin of another.
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1460-ADA NeoPixel Digital RGB LED Weatherproof Strip 30 LED -1m - BLACK
1460-ADA NeoPixel Digital RGB LED Weatherproof Strip 30 LED -1m - BLACK
US$26.11
These NeoPixel strips have 30 digitally-addressable pixel LEDs per meter and are very affordable and are only 12.5 mm wide, 10 mm if you remove the strip from the casing. This is the strip with black flex PCB, its identical to the white 30 LED/meter except it has a different color mask on the flex strip.
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1438-ADA Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.3
1438-ADA Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.3
US$34.92
Instead of a L293D darlington driver, we now have the TB6612 MOSFET drivers with 1.2A per channel current capability (you can draw up to 3A peak for approx 20ms at a time). It also has much lower voltage drops across the motor so you get more torque out of your batteries, and there are built-in flyback diodes as well. Instead of using a latch and the Arduino's PWM pins, we have a fully-dedicated PWM driver chip onboard. This chip handles all the motor and speed controls over I2C. Only two data pins (SDA & SCL in addition to the power pins GND & 5V) are required to drive the multiple motors, and since it's I2C you can also connect any other I2C devices or shields to the same pins. This also makes it drop-in compatible with any Arduino, such as the Uno, Due, Leonardo and Mega R3.
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1187-ADA Massive Arcade Button with LED - 100mm White
1187-ADA Massive Arcade Button with LED - 100mm White
US$17.42
This button has a domed white plastic cover with a black retaining ring around it. There's an optional LED included that will light up the button. The LED has a built in resistor so you can run it up to 12V but given the massive size and shallow depth of the button, it doesn't illuminate the entire button face evenly.
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1188-ADA Massive Arcade Button with LED - 100mm Green
1188-ADA Massive Arcade Button with LED - 100mm Green
US$17.42
This button has a domed green plastic cover with a black retaining ring around it. There's an optional LED included that will light up the button. The LED has a built in resistor so you can run it up to 12V but given the massive size and shallow depth of the button, it doesn't illuminate the entire button face evenly.
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1189-ADA Massive Arcade Button with LED - 100mm Blue
1189-ADA Massive Arcade Button with LED - 100mm Blue
US$17.42
This button has a domed blue plastic cover with a black retaining ring around it. There's an optional LED included that will light up the button. The LED has a built in resistor so you can run it up to 12V but given the massive size and shallow depth of the button, it doesn't illuminate the entire button face evenly.
Delivery within 2-3 weeks
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1186-ADA Massive Arcade Button with LED - 100mm Yellow
1186-ADA Massive Arcade Button with LED - 100mm Yellow
US$17.42
This button has a domed yellow plastic cover with a black retaining ring around it. There's an optional LED included that will light up the button. The LED has a built in resistor so you can run it up to 12V but given the massive size and shallow depth of the button, it doesn't illuminate the entire button face evenly.
Delivery within 2-3 weeks
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1328-ADA 2.1mm DC Barrel Jack to Alligator Clips
1328-ADA 2.1mm DC Barrel Jack to Alligator Clips
US$3.42
A high quality molded 2.1mm DC barrel jack is brought out to red (center positive) & black (ring negative) alligator clips. Works with just about every wall adapter, good for about 2 or 3 Amps of current and up to 24VDC.
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1329-ADA 2.1mm DC Barrel Plug to Alligator Clips
1329-ADA 2.1mm DC Barrel Plug to Alligator Clips
US$3.42
A high quality molded 2.1mm DC barrel plug is brought out to red (center positive) & black (ring negative) alligator clips. 2.1mm is a near-standard for electronics, so with this adapter you can easy clip and connect packs and wires to a power jack. Good for about 2 or 3 Amps of current and up to 24VDC.
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1352-ADA 4-Way 2.1mm DC Barrel Jack Splitter
1352-ADA 4-Way 2.1mm DC Barrel Jack Splitter
US$8.67
Quadruple your power adapters with this wonderfully simple 4-way power jack splitter. All you have to do is connect a standard 5.5mm/2.1mm sized plug into one end, and behold, four identical plugs to use!
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1351-ADA 2-Way 2.1mm DC Barrel Jack Splitter Squid
1351-ADA 2-Way 2.1mm DC Barrel Jack Splitter Squid
US$5.17
Double up your power adapters with this wonderfully simple 2-way power jack splitter. All you have to do is connect a standard 5.5mm/2.1mm sized plug into one end, and behold, two identical plugs to use!
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1448-ADA Compact Switching Power Supply - Selectable Output 3-12VDC
US$19.95
This model is 10 Watts and has 6 selectable outputs ranging from 3V to 12VDC and up to 1.5A output. It has a 2-prong plug, but takes 110VAC to 240VAC so you can use it anywhere with a simple plug adapter. 
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1430-ADA NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix
1430-ADA NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix
US$48.92
40 eye-blistering RGB LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization. 
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1429-ADA 24-Channel 12-bit PWM LED Driver - SPI Interface
1429-ADA 24-Channel 12-bit PWM LED Driver - SPI Interface
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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1426-ADA NeoPixel Stick - 8 x WS2812 5050 RGB LED with Integrated Drivers
1426-ADA NeoPixel Stick - 8 x WS2812 5050 RGB LED with Integrated Drivers
US$10.42
We crammed 8 of the tiny 5050 (5mm x 5mm) smart RGB LEDs onto a PCB with mounting holes and a chainable design. Use only one microcontroller pin to control as many as you can chain together!
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1389-ADA USB DIY Connector Shell - Type Mini-B Plug
1389-ADA USB DIY Connector Shell - Type Mini-B Plug
US$1.67
Make your own USB connections without slicing apart a USB cable and soldering those thin wires inside. These DIY "USB shells" are available in USB A plug, micro B, and USB A socket. 
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1388-ADA USB DIY Connector Shell - Type A Socket
1388-ADA USB DIY Connector Shell - Type A Socket
US$1.67
Make your own USB connections without slicing apart a USB cable and soldering those thin wires inside. These DIY "USB shells" are available in USB A plug, micro B, and mini B.
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1407-ADA Inductive Charging Set - 5V @ 500mA max
1407-ADA Inductive Charging Set - 5V @ 500mA max
US$17.42
This is a basic charger set, and it does work, providing 5V DC output from the output half when the input half is powered with 9V to 12VDC. You can draw as much as ~500mA if the coils are 2 or 3 mm apart. If you only need 100 or 200mA you can be up 7mm apart.
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1385-ADA UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output
1385-ADA UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output
US$17.42
This little circuit board may look tiny but inside is a high efficiency DC/DC step-down converter which can output up to 3 Amp at 5V without the need of any heat-sink or forced cooling. (It does get a bit toasty at 3A though) This UBEC is designed to replace a 5V supply in RC planes and 'copters but its also great for any kind of microcontroller or electronics project that runs off of 5V.
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