Robotics – Arduino And Pi Projects – 3D Modelling – Flash Animation – Apps – IT – Plus More

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Adafruit Industries is an open-source hardware company based in New York City. It was founded by Limor Fried in 2005, in her Massachusetts Institute of Technology (MIT) dorm room. The company designs and manufactures a number of electronics products, sells a wide variety of electronics components, tools, and accessories via its online storefront, and produces a number of learning resources, including written tutorials, introductory videos for beginners, and the longest running live video electronics show on the internet.

NB : They also have a really great YouTube channel called, Adafruit Industries.

— An Introduction To Some Adafruit Industries Products —


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What’s better for your project than rings, strips, boards and sticks of pulsing, colorful miniature LEDs? We can’t think of much else – and that’s why we carry a complete line of the Adafruit original NeoPixels. These popular products are chainable from one to the next so you can power and program a long line of NeoPixels together to form an endless (or almost endless) string of 5050 LEDs. Plus, with our NeoPixel Uberguide, wonderfully written NeoPixel library for Arduino and our diverse range of Learn System projects, its never been easier to both find a project and program it to glow or spin or flash as quickly, slowly, and vibrantly as you want.

Important Things to Know About NeoPixels in General, Not all addressable LEDs are NeoPixels. “NeoPixel” is Adafruit’s brand for individually-addressable RGB color pixels and strips based on the WS2812, WS2811 and
SK6812 LED/drivers, using a single-wire control protocol. Other LED products we carry — DotStars, WS2801 pixels, LPD8806 and “analog” strips — use different methodologies (and have their own tutorials). When seeking technical support in the forums, a solution can be found more quickly if the correct LED type is mentioned, i.e. avoid calling DotStars “NeoPixels”…similar, but different! NeoPixels don’t just light up on their own; they require a microcontroller (such as Arduino) and some programming. We provide some sample code to get you started. To
create your own effects and animation, you’ll need some programming practice. If this is a new experience, work through some of the beginning Arduino tutorials to get a feel for the language.


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FLORA is Adafruit’s fully-featured wearable electronics platform. It’s a round, sewable, Arduino-compatible microcontroller designed to empower amazing wearables projects.FLORA comes with Adafruit’s support, tutorials and projects. Check out dozens of FLORA tutorials on the Adafruit Learning System, with more added all the
time!  The FLORA is small (1.75″ diameter, weighing 4.4 grams). The FLORA family also has the best stainless steel threads, sensors, GPS modules and chainable LED NeoPixels, perfect accessories for the FLORA main board.

The FLORA has built-in USB support. Built in USB means you plug it in to program it, it just shows up – all you need is a Micro-B USB cable, no additional purchases are needed! We have a modified version of the Arduino IDE so Mac & Windows users can get started fast – or with the new 1.6.4+ Arduino IDE, it takes only a few seconds to add Flora-support. The FLORA has USB HID support, so it can act like a mouse or keyboard to attach directly to computers. FLORA has a small but easy to use onboard reset button to reboot the system. The power supply is designed to be flexible and easy to use. There is an onboard polarized 2 JST battery connector with protection schottky diode for use with external battery packs from 3.5v to 16v DC in. Can be used with LiIon/LiPoly, LiFe,
alkaline or rechargeable NiMh/NiCad batteries of any size. The FLORA does not have a LiPo charger included by design, this allows safe use with multiple battery types and reduces risk of fire as it is not recommended to charge these batteries on fabric. We suggest one of our micro-lipo chargers if you want to use LiPo batteries with FLORA.

FLORA has onboard power switch connected to 2A power FET for safe and efficient battery on/off control, so you can power quite a bit without burning out your switch. The FLORA has an onboard 3.3v 250mA regulator with a protection diode and USB fuse so that the microcontroller voltage is consistent and can power common 3.3v
modules and sensors.


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Trellis is an open source backlight keypad driver system. It is easy to use, works with any 3mm LEDs and eight tiles can be tiled together on a shared I2C bus.

This PCB is specially made to match the Adafruit 4×4 elastomer keypad. Each Trellis PCB has 4×4 pads and 4×4 matching spots for 3mm LEDs. The circuitry on-board handles the background key-presses and LED lighting for the 4×4 tile. However, it does not have any microcontroller or other ‘brains’ – an Arduino (or similar microcontroller) is required to control the Trellis to read the keypress data and let it know when to light up LEDs as desired.

Each tile has an I2C-controlled LED sequencer and keypad reader already on it. The chip can control all 16 LEDs individually, turning them on or off. It cannot do grayscale or dimming. The same chip also reads any keypresses made with the rubber keypad. The connections are ‘diode multiplexed’ so you do not have to worry about
“ghosting” when pressing multiple keys, each key is uniquely addressed. The tiles have 3 address jumpers. You can tile up to 8 PCBs together (for a total of 4×32 or 16×8=128 buttons/leds) on a single I2C bus, as long as each one has a unique address. All the tiles connect by the edges with solder, and share the same power, ground, interrupt, and i2c clock/data pins. So, you can easily set up to 128 LEDs and read up to 128 buttons using only 2 I2C wires! The tiles can be arranged in any configuration they want as long as each tile is connected to another
with the 5 edge-fingers. Each LED is multiplexed with a constant-current driver, so you can mix and match any colors you like. You don’t need it to be all blue, all red, etc. Mix it up! Any 3mm LED can be used, although we find that diffused LEDs with 250mcd+ brightness look best.




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