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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$13.92
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.
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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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1192-ADA Large Arcade Button with LED - 60mm White
1192-ADA Large Arcade Button with LED - 60mm White
US$11.46
This button has a flat 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 shallow depth of the button, it doesn't illuminate the entire button face evenly.
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1193-ADA Large Arcade Button with LED - 60mm Green
1193-ADA Large Arcade Button with LED - 60mm Green
US$11.46
This 60mm diameter arcade button is large and inviting and ready for all sorts of pressing and pushing. We've seen these on some games of skill in arcades, they're easy to mount on nearly any kind of enclosure. They're not waterproof or weatherproof, so best used indoors. 
Delivery within 2-3 weeks
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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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1194-ADA Large Arcade Button with LED - 60mm Blue
1194-ADA Large Arcade Button with LED - 60mm Blue
US$11.46
This 60mm diameter arcade button is large and inviting and ready for all sorts of pressing and pushing. We've seen these on some games of skill in arcades, they're easy to mount on nearly any kind of enclosure. They're not waterproof or weatherproof, so best used indoors. 
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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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1356-ADA Flora Color Sensor - TCS34725
1356-ADA Flora Color Sensor - TCS34725
US$12.25
We found the best color sensor on the market, the TCS34725, which has RGB and Clear light sensing elements. An IR blocking filter, integrated on-chip and localized to the color sensing photodiodes, minimizes the IR spectral component of the incoming light and allows color measurements to be made accurately.
Delivery within 2-3 weeks
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1331-ADA Peltier Thermo-Electric Cooler Module - 5V 1A
1331-ADA Peltier Thermo-Electric Cooler Module - 5V 1A
US$26.17
This module is a 5V module, and is rated for 5W max (5V/1A) but when we plugged them in they seemed to draw more like 1.5A so we suggest our 5V/2A power adapter for use.
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1335-ADA Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A
1335-ADA Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A
US$61.17
The 12V Peltier module is mounted onto a 12V heatsink and fan assembly with thermal paste and an aluminum clamp. Simply connect to 12V 5A+ power supply and you will see frost appear on the aluminum plate within a minute.
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1314-ADA Speaker - 3" Diameter - 4 Ohm 3 Watt
1314-ADA Speaker - 3" Diameter - 4 Ohm 3 Watt
US$3.42
This 3" diameter speaker cone is the perfect addition to any audio project where you need an 4 ohm impedance and 3W or less of power. We particularly like this cone as it has 4 handy mounting tabs 60mm apart.
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1313-ADA Speaker - 3" Diameter - 8 Ohm 1 Watt
1313-ADA Speaker - 3" Diameter - 8 Ohm 1 Watt
US$5.17
This 3" diameter speaker cone is the perfect addition to any audio project where you need an 8 ohm impedance and 1W or less of power. We particularly like this cone as it has 4 handy mounting tabs 60mm apart.
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1312-ADA Breadboard-friendly RGB Smart NeoPixel - Pack of 4
1312-ADA Breadboard-friendly RGB Smart NeoPixel - Pack of 4
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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1411-ADA 16-Channel 12-bit PWM/Servo Shield - I2C interface
1411-ADA 16-Channel 12-bit PWM/Servo Shield - I2C interface
US$27.25
With this shield you can make a cool Arduino robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts.
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1400 Adafruit Push-button Power Switch Breakout
1400 Adafruit Push-button Power Switch Breakout
US$9.17
This is a tidy little design that lets you control a DC power source using an everyday tactile button. The breakout uses a latching analog circuit that is triggered by a push of the button. Press once to turn on, then press again to turn off.
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1390-ADA USB DIY Connector Shell - Type Micro-B Plug
1390-ADA USB DIY Connector Shell - Type Micro-B Plug
US$2.02
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 1387-ADA, and micro B.
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1387-ADA USB DIY Connector Shell - Type A Male Plug
1387-ADA USB DIY Connector Shell - Type A Male Plug
US$2.02
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, and micro B 1390-ADA. Each shell comes with a two-part snap plastic shell and a proper connector with easy-to-solder tabs.
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1391-ADA Keyfob 2-Button RF Remote Control - 315MHz
1391-ADA Keyfob 2-Button RF Remote Control - 315MHz
US$12.17
This 2-button keyfob remote goes with our three basic 315MHz RF receiver modules. It will work with all of them, sending out one of two commands that match up with the last two of four outputs.
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1377-ADA SMT Breakout PCB for 48-QFN or 48-TQFP - 3 Pack!
1377-ADA SMT Breakout PCB for 48-QFN or 48-TQFP - 3 Pack!
US$8.67
This breakout PCB set will make your life much much easier and get you prototyping faster than ever. One side has a 48-QFP pin out with traces going to two rows of 0.1" spaced holes, the other has 48-QFN (7mm body). Solder your chip to either side and you're ready to rock on any solderless breadboard.
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1376-ADA NeoPixel Digital RGB LED Weatherproof Strip 30 LED -1m
1376-ADA NeoPixel Digital RGB LED Weatherproof Strip 30 LED -1m
US$29.67
These LED's use about 9.5 Watts max (~2 Amps @ 5V) per meter. The max rating is assuming all the LEDs are on full white, usually the actual current for colorful design is about 1/3 to 1/2 the max current. A good power supply such as our 5V 2A or 10A supply is key!
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1375-ADA Standalone Toggle Capacitive Touch Sensor Breakout
1375-ADA Standalone Toggle Capacitive Touch Sensor Breakout
US$10.42
This is the simplest way to create a project with a single "toggle" capacitive touch sensor. No microcontroller is required here - just power with 1.8 to 5.5VDC and touch the pad to activate the sensor.
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1374-ADA Standalone Momentary Capacitive Touch Sensor Breakout
1374-ADA Standalone Momentary Capacitive Touch Sensor Breakout
US$9.49
This is the simplest way to create a project with a single "momentary" capacitive touch sensor. No microcontroller is required here - just power with 1.8 to 5.5VDC and touch the pad to activate the sensor.
Delivery within 2-3 weeks
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974-ADA Flexible USB Swivel Adapter
974-ADA Flexible USB Swivel Adapter
US$6.92
Useful when you want to attach a 'bulky' USB device without blocking a secondary port.
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553-ADA Linux "Tux" Penguin - Skill badge, iron-on patch
553-ADA Linux "Tux" Penguin - Skill badge, iron-on patch
US$5.25
This is the "I use Linux!" badge for use with educators, classrooms, workshops,Maker Faires, TechShops, Hackerspaces, Makerspaces and around the world to reward beginners on their skill building journey! 
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706-ADA Stacking Header Set for Beagle Bone Capes (2x23)
706-ADA Stacking Header Set for Beagle Bone Capes (2x23)
US$8.67
They're just like 2x23 0.1" spaced female headers but with a twist! The 'legs' are extra-long so you can solder it -through- a PCB and plug it into the Bone.
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567-ADA Beagle Bone - Skill badge, iron-on patch
567-ADA Beagle Bone - Skill badge, iron-on patch
US$5.25
This is the "I made something with a Beagle Bone" badge for use with educators, classrooms, workshops, Maker Faires, TechShops, Hackerspaces, Makerspaces and around the world to reward beginners on their skill building journey! 
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857-ADA Miniature Keyboard- Microcontroller-Friendly PS/2 and USB
857-ADA Miniature Keyboard- Microcontroller-Friendly PS/2 and USB
US$42.72

Add a typing interface to your project with this microcontroller-friendly miniature keyboard. We found the smallest PS/2+USB keyboard available, a mere 8.75" x 4.65" x 0.6" (220mm x 118mm x 16mm)! It's small but usable to make a great accompaniment to either a microcontroller project or a computer such as the Beagle Bone or Raspberry Pi.

Delivery within 2-3 weeks
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1304-Ada Micro Lipo - USB LiIon/LiPoly charger
1304-Ada Micro Lipo - USB LiIon/LiPoly charger
US$10.42
Simply plug in the gold plated contacts into any USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs - one red and one green. While charging, the red LED is lit. When the battery is fully charged and ready for use, the green LED turns on.
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1332-ADA Membrane 1x4 Keypad + Extras
1332-ADA Membrane 1x4 Keypad + Extras
US$5.17
This keypad has 4 buttons, and since every key has its own wire line, no matrix code is required - just treat these like every day switches. The membrane is soft and has a removable paper backing to expose a strong adhesive so you can stick this on an enclosure and feed the cable through a slot.
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922-ADA Miniature Wireless USB Keyboard with Touchpad
922-ADA Miniature Wireless USB Keyboard with Touchpad
US$39.94
We found the smallest wireless USB keyboard available, a mere 6" x 2.4" x 0.5" (152mm x 59mm x 12.5mm)! It's small but usable to make a great accompaniment to a computer such as the Beagle Bone or Raspberry Pi. The keyboard itself is battery powered (there's a rechargeable battery inside that you charge up via the included USB cable).
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1362-ADA Standalone 5-Pad Capacitive Touch Sensor Breakout
1362-ADA Standalone 5-Pad Capacitive Touch Sensor Breakout
US$11.95

This provides the simplest way to create a project with mutiple capacitive touch sensors. 

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1365-ADA Acrylic Stand for 16x2 Character LCD
1365-ADA Acrylic Stand for 16x2 Character LCD
US$10.42
Made of 3mm black acrylic pieces, with 4 x 1" nylon screws & 4 x nylon hex nuts, it goes together in a jiffy and looks super-spiffy!
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1361-ADA Pressure-Sensitive Conductive Sheet (Velostat/Linqstat)
1361-ADA Pressure-Sensitive Conductive Sheet (Velostat/Linqstat)
US$7.91
It's pressure-sensitive: squeezing it will reduce the resistance, so it's handy for making flexible sensors.
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699-ADA Bone Box - Enclosure for Beagle Bone/Beagle Bone Black
699-ADA Bone Box - Enclosure for Beagle Bone/Beagle Bone Black
US$34.92
The enclosure comes as 6 laser cut acrylic pieces, 4 plastic standoffs, 8 hex-nuts and 8 1/2" 4-40 screws. Assembly is easy, and requires only a Phillips screwdriver. Once assembled, the box has lovely engraved ends with cut-outs for the DC power, Ethernet, microSD card, USB host and USB debug ports.
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370-ADA 10-pin Socket/Socket IDC cable - 6"
370-ADA 10-pin Socket/Socket IDC cable - 6"
US$3.50
Connect this to that with an IDC cable! This cable has 10 pins (2x5) in 0.1"x0.1" spacing. Often used for programming AVRs. 6" long with two sockets crimped onto either side, they're quite sturdy!
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989-ADA UK Plug Power Adapter
989-ADA UK Plug Power Adapter
US$5.17
This adapter will let you plug into a US 2-prong power adapter in the following locations: Bahrain, Bangladesh, Belize, Bhutan, Channel Islands, China, Cyprus, Dominica, Falkland Islands, Gambia, Ghana, Gibraltar, Grenada, Guatemala, Guyana, Hong Kong, Indonesia, Iraq, Ireland, Isle of Man, Jordan, Kenya, Kuwait, Lebanon, Macau, Malawi, Malaysia, Maldives, Malta, Mauritius, Myanmar, Nigeria, Oman, Qatar, St. Kitts and Nevis, St. Lucia, St. Vincent, Saudi Arabia, Seychelles, Sierra Leone, Singapore, Tanzania, Uganda, United Arab Emirates, United Kingdom, Vietnam, Yemen, Zambia, Zimbabwe.
Delivery within 2-3 weeks
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1176 Aluminum Flex Shaft Coupler - 5mm to 8mm
1176 Aluminum Flex Shaft Coupler - 5mm to 8mm
US$8.67
This coupler will connect a 5mm diameter shaft to an 8mm diameter shaft. A perfect add on for our stepper motors. Comes with two sets of double set-screws (two per side) for secure attachment. 
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1177-ADA Aluminum Flex Shaft Coupler - 5mm to 10mm
1177-ADA Aluminum Flex Shaft Coupler - 5mm to 10mm
US$8.67
This coupler will connect a 5mm diameter shaft to a 10mm diameter shaft. A perfect add on for our stepper motors. Comes with two sets of double set-screws (two per side) for secure attachment.
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164-ADA IR distance sensor includes cable (10cm-80cm) - GP2Y0A21YK0F
164-ADA IR distance sensor includes cable (10cm-80cm) - GP2Y0A21YK0F
US$26.17
This SHARP distance sensor bounces IR off objects to determine how far away they are. It returns an analog voltage that can be used to determine how close the nearest object is. Comes with 12" long 3-JST interface wire. These sensors are good for short-range detection. For over 1 m distance, we suggest using sonar sensors.
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381-ADA Waterproof DS18B20 Digital temperature sensor + extras
381-ADA Waterproof DS18B20 Digital temperature sensor + extras
US$17.42
This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C.
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481-ADA Waterproof Metal Pushbutton with Blue LED Ring - 16mm Blue Momentary
481-ADA Waterproof Metal Pushbutton with Blue LED Ring - 16mm Blue Momentary
US$10.42
This button is a momentary push button, when you press it the 'normally-open' contact shorts to the common contact. When you release it, the contacts open up again. The switch and LED are separated, so you could wire it to turn on when pressed or vice versa or whatever you wish!
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166-ADA Round Force-Sensitive Resistor (FSR) - Interlink 402
166-ADA Round Force-Sensitive Resistor (FSR) - Interlink 402
US$10.78
FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This sensor is a Interlink model 402 FSR with 1/2 diameter sensing region.
Delivery within 2-3 weeks
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270-ADA Thermocouple Type-K Glass Braid Insulated - K
270-ADA Thermocouple Type-K Glass Braid Insulated - K
US$15.33
Features: K type thermocouple with glass over-braiding. Good up to 500 °C (900 °F)! Color-coded wires. 1 meter long (a little more than 3 feet). Best used with a thermocouple amplifier such as the MAX6675 or MAX31855. 
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374-ADA DS18B20 Digital temperature sensor + extras
374-ADA DS18B20 Digital temperature sensor + extras
US$7.00
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.
Delivery within 2-3 weeks
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464-ADA 12" eTape Liquid Level Sensor + extras
464-ADA 12" eTape Liquid Level Sensor + extras
US$75.17
The eTape Liquid Level Sensor is a solid-state sensor with a resistive output that varies with the level of the fluid. It does away with clunky mechanical floats, and easily interfaces with electronic control systems. The eTape sensor's envelope is compressed by the hydrostatic pressure of the fluid in which it is immersed.
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ADXL345 - Triple-Axis Accelerometer (+-2g/4g/8g/16g) w/ I2C/SPI
US$26.95
Filling out our accelerometer offerings, we now have the really lovely digital ADXL345 from Analog Devices, a triple-axis accelerometer with digital I2C and SPI interface breakout. We added an on-board 3.3V regulator and logic-level shifting circuitry, making it a perfect choice for interfacing with any 3V or 5V microcontroller such as the Arduino.
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915-ADA Waterproof Metal On/Off Switch with Blue LED Ring - 16mm Blue On/Off
915-ADA Waterproof Metal On/Off Switch with Blue LED Ring - 16mm Blue On/Off
US$10.42
This button is an on/off switch button, when you press it the 'normally-open' contact shorts to the common contact and the button stays 'pressed'. When you press it a second time, the button springs open, and the contacts open up again. 
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161-ADA Photo cell (CdS photoresistor)
161-ADA Photo cell (CdS photoresistor)
US$1.75
CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes down. When its light, the resistance is about 5-10KΩ, when dark it goes up to 200KΩ.
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560-ADA Waterproof Metal Pushbutton with Green LED Ring - 16mm Green Momentary
560-ADA Waterproof Metal Pushbutton with Green LED Ring - 16mm Green Momentary
US$10.42
This button is a momentary push button, when you press it the 'normally-open' contact shorts to the common contact. When you release it, the contacts open up again. The switch and LED are separated, so you could wire it to turn on when pressed or vice versa or whatever you wish!
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1092-ADA Tactile On/Off Switch with Leads
1092-ADA Tactile On/Off Switch with Leads
US$6.09
Squeeze once to turn on, squeeze again to turn off! This clicky switch makes a great power switch or mode toggler. We like this switch because it's easy to embed in a seam for easily powering up/off wearable and fabric projects. Can handle up to 14V and 2 Amps! This is a really satisfying switch.
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917-ADA Waterproof Metal On/Off Switch with White LED Ring - 16mm White On/Off
917-ADA Waterproof Metal On/Off Switch with White LED Ring - 16mm White On/Off
US$10.42
These chrome-plated metal buttons are rugged and waterproof and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you can fit these in place, there's even a rubber gasket to keep any water out of the enclosure.
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Touch screen (Nintendo DSL digitizer)
US$9.49
This resistive touch screen can be used with a stylus or fingertip and is easy to use with a microcontroller. You can put it over a paper overlay for a touch control panel or attach it to an LCD to DIY a touch-activated display.
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916-ADA Waterproof Metal On/Off Switch with Red LED Ring - 16mm Red On/Off
916-ADA Waterproof Metal On/Off Switch with Red LED Ring - 16mm Red On/Off
US$10.42
This button is an on/off switch button, when you press it the 'normally-open' contact shorts to the common contact and the button stays 'pressed'. When you press it a second time, the button springs open, and the contacts open up again. 
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820-ADA Micro Switch w/Wire - Three Terminals
820-ADA Micro Switch w/Wire - Three Terminals
US$5.17
This microswitch has a 3" long wire lever actuator and three terminals. Sometimes called 'coin switches' - they're used in coin detectors. The terminals are along the bottom (the other microswitches have them on the sides).
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819-ADA Micro Switch w/Roller Lever - Three Terminal
819-ADA Micro Switch w/Roller Lever - Three Terminal
US$3.76
This microswitch has a flat metal lever actuator and a roller at the end. The roller makes it a little better for angled actuation. This switch comes with three terminals (common/normally-open/normally-closed). We also have kinds with a bump actuator, flat lever and long wire.
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1152-ADA Arcade/Button Quick-Connect Wire Pair - Set of 10 pairs
1152-ADA Arcade/Button Quick-Connect Wire Pair - Set of 10 pairs
US$9.54
Quick connector wire sets will make wiring up our arcade-style or metal waterproof buttons quicky-quick. Each wire comes as a 'pair' with two 0.11" quick-connects pre-crimped onto 20cm long wires.
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423-ADA Foot switch
423-ADA Foot switch
US$13.13
This foot switch is made of rubbery plastic, is plenty strong to put up with any amount of stomping, and contains a snap switch. You can use the switch as either a "normally open" or "normally closed" type. Attached to the switch is a 2 meter long cable so you can wire it directly to your project.
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1064-ADA Electret Microphone - 20Hz-20KHz Omidirectional
1064-ADA Electret Microphone - 20Hz-20KHz Omidirectional
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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627-ADA Electroluminescent (EL) Panel Starter Pack - 10cm x 10cm Aqua
627-ADA Electroluminescent (EL) Panel Starter Pack - 10cm x 10cm Aqua
US$43.67

Includes: 10cm x 10cm (approx 4"x4") square panel in Aqua, Portable 4xAAA inverter powerful enough to drive a single panel, 4 x AAA alkaline batteries to power the inverter and panel for 10 hours.

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905-ADA Large Plastic Project Enclosure - Weatherproof with Clear Top
905-ADA Large Plastic Project Enclosure - Weatherproof with Clear Top
US$34.92
We picked up this box because we like the machinable ABS plastic body and tough clear polycarbonate cover, the built in weatherproof gasket seal, and the easy-open screws that can be taken apart as many times as you wish without worrying about cracking or stripping.
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903-ADA Small Plastic Project Enclosure - Weatherproof with Clear Top
903-ADA Small Plastic Project Enclosure - Weatherproof with Clear Top
US$17.42
We picked up this box because we like the machinable ABS plastic body and tough clear polycarbonate cover, the built in weatherproof gasket seal, and the easy-open screws that can be taken apart as many times as you wish without worrying about cracking or stripping. 
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1008-ADA Small Alligator Clip Test Lead (set of 12)
1008-ADA Small Alligator Clip Test Lead (set of 12)
US$6.92
Connect this to that without soldering using these handy mini alligator clip test leads. 15" cables with alligator clip on each end, color coded. You get 12 pieces in 6 colors. Strong and grippy, these always come in handy!
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936-ADA Panel Mount USB Cable - B Female to Mini-B Male
936-ADA Panel Mount USB Cable - B Female to Mini-B Male
US$6.92
This handy USB extension cable will make it easy for you to enclose a device that has a mini-B USB type port. We think this would be most handy when putting a Teensy, FTDI friend, USB LiPo charger, USB Boarduino, etc into a box! 
Delivery within 2-3 weeks
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874-ADA Snap-action 5-Wire Block Connector (12-28 AWG) - Pack of 3
874-ADA Snap-action 5-Wire Block Connector (12-28 AWG) - Pack of 3
US$8.67
Each block connector has a metal block inside and five levers that snap open and close to bind stranded/solid-core wire. No screwdrivers required! They're super handy for free wiring and can handle up to 20A at 300V with UL listing so you can also use them for mains wiring. Use any wires from 12 AWG down to 28 AWG. 
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978 Panel mount HDMI Cable - 40 cm
978 Panel mount HDMI Cable - 40 cm
US$10.42
This panel mount extension cable will allow you to extend an HDMI connection and secure it to an enclosure. Perfect for placing your Raspberry Pi in a secure box. Two M3 screws are used to attach the female socket end, 1"/25.4mm apart. Two hex-screws are included and the hex nuts are embedded inside the molded end. 
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972-ADA Servo Extension Cable - 30cm / 12" long
972-ADA Servo Extension Cable - 30cm / 12" long
US$3.42
Stretch out your servo connections with this flexible servo extension cord. It has a 3 pin shrouded "male" connection to plug your servo into and then, 30cm later, a 3 pin female connection. It even keeps the common red/black/white color coding.
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737-ADA Power Distribution Bus - 7 x 6mm diameter solid brass
737-ADA Power Distribution Bus - 7 x 6mm diameter solid brass
US$3.42
These machined bus bars are for when you want to distribute power through a project, we think they are ideal for robots and LED pixel grids where you have tons of current and a lot of loose wiring to control.
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761-ADA Cable Gland PG-9 size - 0.158" to 0.252" Cable Diameter - PG-9
761-ADA Cable Gland PG-9 size - 0.158" to 0.252" Cable Diameter - PG-9
US$3.42
By installing these over the cable, they form-fit to make a seal, keeping your project box innards safe from the outdoors. 
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988-ADA USB A Jack to 5.5/2.1mm jack adapter
988-ADA USB A Jack to 5.5/2.1mm jack adapter
US$5.17
This little dongle will let you connect one of our 5V 2Amp or 5V 10Amp adapters to something that expects to connect to USB. The premise is simple - one end has a USB A female jack and the other has a 'standard' 5.5mm OD/2.1mm ID barrel jack with center positive polarity. 
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371-ADA 6-pin Socket/Socket IDC cable - 6"
371-ADA 6-pin Socket/Socket IDC cable - 6"
US$3.50
Connect this to that with an IDC cable! This cable has 6 pins (2x3) in 0.1"x0.1" spacing. Often used for programming AVRs. 6" long with two sockets crimped onto either side, they're quite sturdy!
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762-ADA Cable Gland PG-7 size - 0.118" to 0.169" Cable Diameter - PG-7
762-ADA Cable Gland PG-7 size - 0.118" to 0.169" Cable Diameter - PG-7
US$3.42
By installing these over the cable, they form-fit to make a seal, keeping your project box innards safe from the outdoors. 
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344-ADA Heat Shrink Pack
344-ADA Heat Shrink Pack
US$8.67
Features: Pack contains four 6" pieces of the following sizes: 3/32", 1/8", 3/16", 1/4", 3/8", 1/2". 2:1 shrink ratio. High-grade flexible polyolefin material. UL approved.
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422-ADA Fine tip curved tweezers - ESD safe - 120mm
422-ADA Fine tip curved tweezers - ESD safe - 120mm
US$6.92
When soldering small surface-mount (SMD/SMT) components, one thing you'll need is a good pair of tweezers. These are a great pair of every-day tweezers. They're anti-static, anti-magnetic and made of hard stainless steel.
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149-ADA Solder wick - 3S 5ft.
149-ADA Solder wick - 3S 5ft.
US$5.25
5ft spool - Used along with the solder sucker to clean up soldering messes. Wick really comes in handy when soldering or desoldering surface-mount parts. Even if you don't have the best iron for SMT work, a bit of wick will fix it up.
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421-ADA Fine tip straight tweezers - ESD safe - 135mm
421-ADA Fine tip straight tweezers - ESD safe - 135mm
US$6.92
When soldering small surface-mount (SMD/SMT) components, one thing you'll need is a good pair of tweezers. These tweezers are a great pair of every-day tweezers. They're anti-static, anti-magnetic and made of hard stainless steel.
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147-ADA Multi-size wire stripper & cutter
147-ADA Multi-size wire stripper & cutter
US$12.17
We've upgraded our basic 'adjustable' wire strippers to these multi-sized wire strippers. They include: 22-30 AWG strippers, wire cutters, 'plier' tips, and a wire loop. Ground blades for precision cutting. Spring return, comfy molded handles and a closing-lock. 
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1209-ADA ESD-Safe PCB Cleaning Brush
1209-ADA ESD-Safe PCB Cleaning Brush
US$5.17
If you want to have a nice clean board (or maybe you're doing some repair) you can use this stiff-bristled brush without worries. Some people like to drip a little rubbing alcohol on their PCBs after soldering and then scrubbing to remove rosin/flux. Finally, you have the right tool for the job. About 7" long from end to end, scrubby part is 1.5" x 0.5" with 0.5" bristles.
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851-ADA SMA to uFL/u.FL/IPX/IPEX RF Adapter Cable
851-ADA SMA to uFL/u.FL/IPX/IPEX RF Adapter Cable
US$6.08
This RF adapter cable is super handy for anyone doing RF work. Often times, small electronics save space by having a pick-and-placeable u.FL connector (also called uFL, IPEX, IPAX, IPX, MHF, and AM). But most antennas have SMA or RP-SMA connectors on them. This little cable will bridge the two! 
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920-ADA SMA Jack to RP-SMA Plug RF Adapter
920-ADA SMA Jack to RP-SMA Plug RF Adapter
US$6.03
This RF adapter bit is great for anyone doing RF work. Depending on the dev-board and antenna you have, you may be faced with either RP-SMA or SMA connectors. Unfortunately they are not compatible! This adapter solves the problem with an SMA jack on one end and an RP-SMA Plug on the other.
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945-ADA 2.4GHz Dipole Swivel Antenna with RP-SMA - 5dBi
945-ADA 2.4GHz Dipole Swivel Antenna with RP-SMA - 5dBi
US$13.79

This 8"/200mm long swivel dipole antenna has 5dBi of gain and 50Ω impedance so it will work fantastically with just about any 2.4-2.5GHz wireless receiver/transmitter such as: 2.4GHz Wi-Fi (802.11b/g/n), 2.4GHz XBee, Bluetooth, Other 2.4GHz transceivers.

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919-ADA RP-SMA Jack to SMA Plug RF Adapter
919-ADA RP-SMA Jack to SMA Plug RF Adapter
US$6.03
This RF adapter bit is great for anyone doing RF work. Depending on the dev-board and antenna you have, you may be faced with either RP-SMA or SMA connectors. Unfortunately they are not compatible! This adapter solves the problem with a RP-SMA jack on one end and an SMA Plug on the other.
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587-ADA EL wire starter pack - Red 2.5 meter (8.2 ft)
587-ADA EL wire starter pack - Red 2.5 meter (8.2 ft)
US$34.92

This project pack contains: 2.5 meters (over 8 ft) of high-brightness, long-life EL wire in Red, Pocket EL inverter runs on 2 AA Alkaline or rechargeable batteries (not included), 2 inches of heat shink, both 1/8" and 1/4", 2 inches of copper tape, 2 inches of foam tape.

Delivery within 2-3 weeks
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410-ADA High Brightness White Electroluminescent (EL) Wire - 2.5 meters
410-ADA High Brightness White Electroluminescent (EL) Wire - 2.5 meters
US$21.00
We've got 2.6mm thickness EL wire, with a pinkish coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 115 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use.
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1283 SMT Test Socket - SOIC-16 Narrow Breakout
1283 SMT Test Socket - SOIC-16 Narrow Breakout
US$38.42
Yeah, that's right, now you can program and test out your favorite new parts in SOIC-16 or smaller packages. This test socket is good for any SOIC/SOP "Narrow" chip in a 150mil wide body that has 16 pins or fewer. Simply press down on the top, place the chip in carefully and then release to latch the chip in.
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1281 SMT Test Socket - SOIC-28 Wide Breakout
1281 SMT Test Socket - SOIC-28 Wide Breakout
US$52.42
Yeah, that's right, now you can program and test out your favorite new parts in SOIC Wide packages. This test sockets is good for any wide (300 mil) SOIC/SOP with up to 28 pins. Simply open the latch, place the chip in carefully and then close the top over it. The chip is held securely against gold 'fingers' in the socket.
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394 Pogo Pins (10 pack) - P75-LM3
394 Pogo Pins (10 pack) - P75-LM3
US$13.13
These particular pins are (in our opinion) ideal because they are skinny enough to fit into proto board or perf board - they have a 1.0mm/0.04" diameter body (the gold part) but the spring contact head is 1.5mm (0.06") wide. The uncompressed length is 16.5mm/0.65", compressed is 14mm/0.55"
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725 Terminal Block - 3-pin 3.5mm - pack of 5!
725 Terminal Block - 3-pin 3.5mm - pack of 5!
US$6.92
These particular 3.5mm terminal blocks are our favorite: big enough for a range of wire gauges, easy to adjust with a screwdriver, and not too chunky. The only down-side is that they do not fit into 2.5mm spaced holes (they're 3.5mm spaced) - but they do fit in most perf/proto-board if you rotate them diagonally.
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373 Breadboard-friendly 2.1mm DC barrel jack
373 Breadboard-friendly 2.1mm DC barrel jack
US$1.67
This power jack is designed to fit 2.1mm power plugs snugly and securely. Perfect for adding a power connector to your project. We went for the more expensive "thin pin" type which snap into breadboards or perfboards.
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610 Panel Mount 2.1mm DC barrel jack
610 Panel Mount 2.1mm DC barrel jack
US$5.17
This power jack is designed to easily attach to a panel up to 8mm thick (0.315" or 5/16") and fit 2.1mm power plugs snugly and securely. Perfect for adding a power connector to your project enclosure.
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724 Terminal Block - 2-pin 3.5mm - pack of 5!
724 Terminal Block - 2-pin 3.5mm - pack of 5!
US$5.17
These particular 3.5mm terminal blocks are our favorite: big enough for a range of wire gauges, easy to adjust with a screwdriver, and not too chunky. The only down-side is that they do not fit into 2.5mm spaced holes (they're 3.5mm spaced) - but they do fit in most perf/proto-board if you rotate them diagonally.
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806 3x8 Male Header - 4 pack
806 3x8 Male Header - 4 pack
US$5.17
Three rows!? Yes! These chunks of 0.1" header has yet-another-row - handy for when you want to connect cables that come in sets of three, like perhaps sensors, or servos. These plug into any standard 0.1" spacing perf-boards or other PCBs and work nicely with our female-ended wire sets.
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562 Panel Mount 10K potentiometer (Breadboard Friendly) - 10K Linear
562-ADA Panel Mount 10K potentiometer (Breadboard Friendly) - 10K Linear
US$1.67
This potentiometer is a two-in-one, good in a breadboard or with a panel. Its a fairly standard linear taper 10K ohm potentiometer, with a grippy shaft. Its smooth and easy to turn, but not so loose that it will shift on its own.
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735 74LVC245 - Breadboard Friendly 8-bit Logic Level Shifter
74LVC245 - Breadboard Friendly 8-bit Logic Level Shifter
US$2.63
The 74LVC245 is designed so that even when it runs at 1.8V, it still happily accepts 5V signals in one pin and converts it to a lower logic level on the opposite pin. This chip is only for digital signals, it doesn't convert analog signals (you need an op amp for that).
Delivery within 2-3 weeks
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550 Little Rubber Bumper Feet - Pack of 4
550-ADA Little Rubber Bumper Feet - Pack of 4
US$1.67
These small sticky bumpers are our favorite accessory for any electronic kit or device. They are sticky, but not impossible to remove. They're small enough to fit onto any board, and have just enough height to give clearance to thru-hole soldered components.
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593 MCP23008 - i2c 8 input/output port expander
593 MCP23008 - i2c 8 input/output port expander
US$3.42
Add another 8 pins to your microcontroller using a MCP23008 port expander. The MCP23008 uses two i2c pins (these can be shared with other i2c devices), and in exchange gives you 8 general purpose pins. You can set each of 8 pins to be input, output, input with a pullup or open drain.
Delivery within 2-3 weeks
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504 Thru-hole 5-way Navigation switch SKQUCAA010
504 Thru-hole 5-way Navigation switch SKQUCAA010
US$5.68
This navigation switch is an intuitive way to add 5 button's worth of interfacing with a single component. Inside is 5 switches: left, right, up, down and 'select' (pressing down), all with a common ground pin.
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753 0.1uF ceramic capacitors - 10 pack
753 0.1uF ceramic capacitors - 10 pack
US$3.42
A 0.1uF capacitor right next to the VCC pin of your chips will improve stability by filtering out power supply spikes and noise that can cause flaky behavior. We love these little guys, they have 0.1" spacing so fit into any perf or breadboard, compact and good quality.
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977 TO-220 Clip-On Heatsink
977 TO-220 Clip-On Heatsink
US$1.32
977 Adafruit TO-220 Clip-On Heatsink Get the most out of your regulators, transistors and other TO-220 packaged chips by clipping on a heat-sink. Your...
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816 3x4 Right Angle Male Header - 4 pack
816 3x4 Right Angle Male Header - 4 pack
US$5.17
Three rows in a right angle header!? Yes! These chunks of 0.1" header has yet-another-row - handy for when you want to connect cables that come in sets of three, like perhaps sensors, or servos. These plug into any standard 0.1" spacing perf-boards or other PCBs and work nicely with our female-ended wire sets.
Delivery within 2-3 weeks
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804 PS/2 Wired Connector - Panel Mount MiniDIN-6
804 PS/2 Wired Connector - Panel Mount MiniDIN-6
US$12.47
This connector is sturdy and easy to panel mount, and has pre-soldered wires connected to the 6 contacts (of which 4 are used).
Delivery within 2-3 weeks
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