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Adafruit

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2909-ADA USB 2.0 and Ethernet Hub - 3 USB Ports and 1 Ethernet
US$24.52
This handy combo-hub has 3 USB 2.0 ports, and a AX88772A Ethernet transceiver. This chipset is really common and can be used by any Linux, Mac or Windows computer. It's particularly handy for the  Raspberry Pi A+ or brand new Raspberry Pi Zero which is tight on USB ports and has no Ethernet out. We did some basic tests and got 11+ MB/s transfer speeds on our Pi Zero.
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2940-ADA Short Feather Headers Kit - 12-pin and 16-pin Female Header Set
US$2.63
These headers are particularly cute and tiny with a body height of just 5.0 mm they are the best way to minimize the amount of space your Feather project takes up, but still maintain that flexible configuration. "Normal" socket headers have an 8.5mm body height so this saves you a whole 3.5mm (hey it adds up!).
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2793-ADA RCA (Composite Video, Audio) Female Jack Terminal Block
US$4.38
One truth about working with A/V is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block RCA connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs.
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2792-ADA RCA (Composite Video, Audio) Male Plug Terminal Block
US$2.63
One truth about working with A/V is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block RCA connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs.
Delivery within 2-3 weeks
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2911-ADA 1/4" (6.35mm) Stereo Plug Terminal Block
US$3.42
This is the 1/4" (6.35mm) Stereo Plug Terminal Block. It's a pretty common size and is super useful for more heavy duty connections - like a modular synth, amplifier or an electric guitar.
Delivery within 2-3 weeks
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2890-ADA FeatherWing Doubler - Prototyping Add-on For All Feather Boards
US$13.13
This is the FeatherWing Doubler - a prototyping add-on and more for all Feather boards. This is similar to our FeatherWing Proto (2884-ADA) except there are two! The magic of the Doubler comes when stacking a Feather and another board on top of the Doubler so you can work with both boards simultaneously side-by-side!
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2900-ADA FeatherWing OLED - 128x32 OLED Add-on For All Feather Boards
US$26.17
This is the FeatherWing OLED: it adds a 128x32 monochrome OLED plus 3 user buttons to any Feather main board. Using our Feather Stacking Headers or Feather Female Headers you can connect a FeatherWing on top of your Feather board and let the board take flight!
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2884-ADA FeatherWing Proto - Prototyping Add-on For All Feather Boards
US$7.62
This is the FeatherWing Proto - a prototyping add-on for all Feather boards. Using our Feather Stacking Headers or Feather Female Headersyou can connect a FeatherWing on top or bottom of your Feather board and let the board take flight!
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2829-ADA Adafruit Feather 32u4 Bluefruit LE
US$42.00
Feather is the new development board from Adafruit, and like it's namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather 32u4 Bluefruit - our take on an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging. Its an Adafruit Feather 32u4 with a BTLE module, ready to rock!
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2830-ADA Feather Stacking Headers - 12-pin and 16-pin female headers
US$2.18
What do they do? They stack. Put the headers through your Feather and then you can not only plug them into a solderless breadboard, but you could attach circuitry on top as well.
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2821-ADA Adafruit Feather HUZZAH with ESP8266 WiFi
US$27.92
At the Feather HUZZAH's heart is an ESP8266 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. You can progam the microcontroller using the Arduino IDE for an easy-to-run Internet of Things core.
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2748-ADA Adafruit ALS-PT19 Analog Light Sensor Breakout
US$3.85
Add a teeny analog light sensor, the ALS PT19 analog light sensor is a great way to upgrade a project that uses a photocell and needs RoHS compliance. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes.
Delivery within 2-3 weeks
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2788-ADA 3.5 / 1.3mm To 5.5 / 2.1mm DC Jack Adapter Cable
US$1.67
2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.3mm ID (3.5mm OD) DC jack!
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2750-ADA Lithium Ion Polymer Battery - 3.7v 350mAh
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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2471-ADA Adafruit HUZZAH ESP8266 Breakout
US$15.33

The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) and TCP/IP stack with DNS support as well. While this chip has been very popular, its also been very difficult to use. The Adafruit HUZZAH ESP8266 breakout is what we designed to make working with this chip super easy and a lot of fun. We took a certified module with an onboard antenna, and plenty of pins, and soldered it onto our designed breakout PCBs.

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