PaPiRus Zero is an ePaper / eInk screen pHAT designed for the Raspberry Pi Zero. It’s one of the first true low power displays for the Pi Zero mini computer. ePaper / eInk is a display technology that mimics the appearance of ink on normal paper. Unlike conventional displays, ePaper reflects light – just like ordinary paper – and is capable of holding text and images indefinitely, even without electricity. Because of this,...

The PaPiRus Screen HAT  from Pi Supply is an ePaper / eInk screen HAT designed for the Raspberry Pi. Think of it as the older sibling of the PaPiRus Zero. ePaper / eInk is a display technology that mimics the appearance of ink on normal paper. Unlike conventional displays, ePaper reflects light – just like ordinary paper – and is capable of holding text and images indefinitely, even without electricity. Because of this, ePaper...

Remember those cereal commercials that would always say, "part of a complete breakfast"? Well the Pi Zero's a lot like that bowl of cereal - while it's great on its own, you need a lot of accessories to make it a complete meal. The Pi Zero W Basic Pack is the barest of essentials that you'll need to get going with your WiFi-enabled Pi Zero W and make it a complete meal. This pack includes: ...

Remember those cereal commercials that would always say, "part of a complete breakfast"? Well the Pi Zero's a lot like that bowl of cereal - while it's great on its own, you need a lot of accessories to make it a complete meal. The Pi Zero W Budget Pack is almost everything you need to get going with your WiFi-enabled Pi Zero W and make it a complete meal. Note: Due to popular demand, there might be...

The 1.3" 168x144 SHARP Memory LCD display is a cross between an eInk (e-paper) display and an LCD. It has the ultra-low power usage of eInk and the fast-refresh rates of an LCD. This model has a gray background, and pixels show up as black-on-gray for a nice e-reader type display. It does not have a backlight, but it is daylight readable. For dark/night reading you may need to illuminate the LCD area with external LEDs. The bare...

Remember those cereal commercials that would always say, "part of a complete breakfast"? Well the Pi Zero's a lot like that bowl of cereal - while it's great on its own, you need a lot of accessories to make it a complete meal.  The Pi Zero W Starter Pack is everything you need to get going with your WiFi-enabled Pi Zero W and make it a complete meal. Note: Due to popular demand, there might be some...

Adding shortening to a Pi makes it fatter - but this kind of shortening makes your Pi a little slimmer! This short-style, pink microSD adapter slides in where the SD card goes but is 9mm shorter. This makes it stick out a lot less and makes for a more elegant (and less accident-prone) Pi. All you have to do is pop in a microSD card for a sleeker machine! The outer edge of the SD adapter has a deep groove for a fingernail to pull on for removal....

Get that heat sink stuck on good and strong with 3M's thermal tape. Specifically designed for attaching heat sinks to ICs. Works better and is less messy than thermal glues or pastes because the thickness is even across the area. A perfect match for our range of small heat sinks, either in aluminum or copper. Comes in a square of 80mm x 80mm (3" square) - but can be cut into any shape or size. For more information about 3M's 8810...

Get that heat sink stuck on good and strong with 3M's thermal tape. Specifically designed for attaching heat sinks to ICs. Works better and is less messy than thermal glues or pastes because the thickness is even across the area. A perfect match for our range of small heat sinks, either in aluminum or copper. Comes in a square of 25mm x 25mm (1" square) - but can be cut into any shape or size. For more information about 3M's 8810...

Explore new microcontroller worlds with an ST-Link Programmer & Emulator / Debugging dongle. This little USB stick contains a microcontroller with the code for ST's classic programmer/emulator for STM8 and STM32 bit processors. Since STM's are so common, this tool will come in handy whenever you encounter them. You can even get 5V and regulated 3.3V power! Comes with one USB stick and a couple pieces of female-female jumpers. You may...

Looking for the best heat sink for your Raspberry Pi 3? Check out this nice and tall 15x15x15mm Heat Sink! This heat sink is made from high quality aluminum and will work perfectly with any Raspberry Pi  but is best paired with a Raspberry Pi 3 since it can run a little hot. It comes with thermal adhesive already applied to the back making installation super easy. Clean the surface of the chip of any dust or grease then peel off the...

Looking for a nice way to cool down your  Raspberry Pi 3? Check out this  14x14x8 Heat Sink! This heat sink is made from high quality aluminum and will work perfectly with any  Raspberry Pi  but is best paired with a Raspberry Pi 3 since it can run a little hot. It comes with thermal adhesive already applied to the back making installation super easy. Clean the surface of the chip of any dust or grease then peel off the...

Doing some serious development on any ARM-based platform, and tired of 'printf' plus an LED to debug? A proper JTAG/SWD HW debugger can make debugging more of a pleasure and less of a pain. It allows you to program your devices at the click of a button, read or write memory addresses or registers on a live system, temporarily halt program execution at a given location or condition, and much more. Essentially, it's a direct window...

The SEGGER J-Link EDU is identical to the more expensive J-Link BASE model except for the terms of use . If you're going to use your debugger strictly for personal, non-commercial projects, such as publishing open source designs that you're not selling, then you should get this EDU version! It's the same but significantly cheaper. On the other hand if you're making money, or plan to make money off your project, go and pick up the...

EL Wire, also known as Electroluminescent wire is a stiff wire core coated with phosphor and then covered with a protective PVC sheath. When an AC signal is applied to it, it glows an aqua (blue green) color. You can make it look different colors by changing the coating, for example this is a vivid pink. It looks a little like thin neon. Very bendable, it keeps its shape and you can curl it around your finger. Its an easy way to add some glow to...

Experiment with paper electronics with this silver conductive ink pen that will let you draw traces! We like the make of this pen, it has a nice liquid silver ink that flows easily, and it works great. In just 3 minutes from opening the packaging, we made the image above, a coin cell holder with an LED. There are two 'tips' available - standard and micro. The microtip allows for finer control but is a little harder to use (because it...

The SEGGER J-Link BASE is identical to the cheaper J-Link EDU model except for the terms of use . If you're going to use your debugger strictly for personal, non-commercial projects, such as publishing open source designs that you're not selling, then you should get the EDU version! It's the same but significantly cheaper. On the other hand if you're making money, or plan to make money off your project, then you're...

  There are two 'tips' available - standard and micro. The microtip allows for finer control but is a little harder to use (because it doesn't deposit as much silver at once).The CW2200STP (standard tip pen) has an orifice size of 1 mm and will draw traces that will average 2.0 mm in width. The CW2200MTP (micro-tip pen) has an orifice size of 0.7 mm and will draw traces that average 1.5 mm in width. See the image above with a...

Note:  This product is currently undergoing a revision and will be available again soon! We are excited to add another product to our growing Adafruit Bluefruit line, this time it's the Bluefruit EZ-Link Shield: the best Bluetooth Serial shield ever made. Like you, we have purchased all sorts of Bluetooth shields with high expectations - we just wanted something that worked! But nothing ever did exactly what we wanted: there was always...

Note:  This product is currently undergoing a revision and will be available again soon! We are excited to add another product to our growing Adafruit Bluefruit line, this time it's the Bluefruit EZ-Link: the best Bluetooth Serial Link device ever made. Like you, we have purchased all sorts of Bluetooth serial link modules, with high expectations - we just wanted something that worked! But nothing ever did exactly what we wanted: there...

Looking for an ultra-thin heat sink for your  Raspberry Pi 3? Check out this nice and slim 13x13x3mm Heat Sink! This heat sink is made from high quality aluminum and will work perfectly with any  Raspberry Pi  but is best paired with a Raspberry Pi 3 since it can run a little hot. It comes with thermal adhesive already applied to the back making installation super easy. Clean the surface of the chip of any dust or grease then peel...

If you want to heat sink a SoC, motor driver, linear regulator, FET or other surface-mount package part, you might find yourself struggling to find a good heat sink. These little extra-small mini heat sinks are easy to use and give you an extra thermal boost. They're also a great deal, you get a pack of 10 in each order! The heat sink is a 0.25" x 0.25" (6.5mm x 6.5mm) square with 9 little 'fins' sticking out the top. The...

If you want to heat sink a SoC, motor driver, or other surface-mount package part, you might find yourself struggling to find a good heat sink. These sinks from Cool Innovations are beloved by our favorite engineers for their low cost, ease of use and low thermal resistance! The heat sink is a 0.27" x 0.27" (6.7mm x 6.7mm) square with four round 'fins' sticking out the top. The total height is 0.3" (7.6mm) but you can easily file it down if you...

If you want to heat sink a SoC, motor driver, linear regulator, FET or other surface-mount package part, you might find yourself struggling to find a good heat sink. These extra-tall extra-small mini heat sinks are easy to use and give you an extra thermal boost. The heat sink is a 0.26" x 0.26" (6.75mm x 6.75mm) square with 3 tall 'fins' sticking out the top. The total height is 0.39" (10mm) but you can easily file...

If you want to heat sink a SoC, motor driver, or other surface-mount package part, you might find yourself struggling to find a good heat sink. These sinks from Cool Innovations are beloved by our favorite engineers for their low cost, ease of use and low thermal resistance! The heat sink is a 0.4" x 0.4" (10mm x 10mm) square with nine round 'fins' sticking out the top. The total height is 0.3" (7.6mm) but you can easily...

If you want to heat sink a SoC, motor driver, or other surface-mount package part, you might find yourself struggling to find a good heat sink. These sinks from Cool Innovations are beloved by our favorite engineers for their low cost, ease of use and low thermal resistance! The heat sink is a 0.5" x 0.5" (12.5mm x 12.5mm) square with nine round 'fins' sticking out the top. The total height is 0.4" (10mm) but you can...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for many projects. Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. You can make the LEDs fade and twinkle by using the PWM (a.k.a. analogWrite)...

A button is a button, and a switch is a switch, but these translucent arcade buttons are in a class of their own. They're the same size as common arcade controls (often referred to as 30mm diameter) but have some nice things going for them that justify the extra dollar. First, they look fantastic, all 6 colors have a crystal translucent glossy look. Although they do not have LEDs built in, we're confident that sticking a diffused LED...

A little bundle to get you started! This project pack contains: 2.5 meters (over 8 ft) of high-brightness, long-life EL wire in Pink. 2.5 meters is the maximum amount for the pocket driver - it is cut and soldered so it's ready to go! Pocket EL inverter runs on 2 AA Alkaline or rechargeable batteries (not included) 2 inches of heat shink, both 1/8" and 1/4" for protecting the EL wire after soldering if you end up wanting to change...

Now that we have The Single Greatest Raspberry Pi Model A+ Case Ever - we decided to make it even better by adding  COLORS!!!!!  Mix and match snap-on lids and bases to form your favorite combinations.  Buy one base then match different colored lids to your room or outfit.  Or buy all of them so that you can adjust your Pi A+'s case based on your mood, your favorite sports team, or even your aura....

Looking beyond ABS? Tired of PLA? Open a world of possibilities, limited only by your imagination. NinjaFlex, a cutting-edge filament for 3D printers, is a specially formulated thermoplastic elastomer (TPE) that produces flexible prints with elastic properties. Patent pending technology allows for smooth feeding and clean, high-quality printed parts. NinjaFlex's unique flexibility and smooth feeding characteristics enable you to create in...

Now that we have The Single Greatest Raspberry Pi Model A+ Case Ever - we decided to make it even better by adding  COLORS!!!!!  Mix and match snap-on lids and bases to form your favorite combinations.  Buy one base then match different colored lids to your room or outfit.  Or buy all of them so that you can adjust your Pi A+'s case based on your mood, your favorite sports team, or even your aura....

Now that we have The Single Greatest Raspberry Pi Model B+ / Pi 2 Case Ever - we decided to make it even better by adding  COLORS!!!!!  Mix and match snap-on lids and bases to form your favorite combinations.  Buy one base then match different colored lids to your room or outfit.  Or buy all of them so that you can adjust your Pi B+'s case based on your mood, your favorite sports team, or even...

Resistor. Super detailed resistors and capacitors oh my! How can you resist? Impress any nerdy guy or girl: computer scientist, programmer, electrician, engineer or maker. Is dad, grandpa, boyfriend or husband a tinkerer with solder and blinky things? Perfect for groomsmen and brides boys of the geeky persuasion. Nerd power! Circuit board necktie "Resistor" - Black with silver ink, narrow. 100% Polyester microfiber necktie. We're...

Now that we have The Single Greatest Raspberry Pi Model B+ / Pi 2 Case Ever - we decided to make it even better by adding  COLORS!!!!!  Mix and match snap-on lids and bases to form your favorite combinations.  Buy one base then match different colored lids to your room or outfit.  Or buy all of them so that you can adjust your Pi B+'s case based on your mood, your favorite sports team, or...

The cable is easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. Inside the big USB plug is a USB<->Serial conversion chip and at the end of the 36" cable are four wire - red power, black ground, white RX into USB port, and green TX out of the USB port. The power pin provides the 5V @ 500mA direct from the USB port and the RX/TX pins are 3.3V level for interfacing with the most common 3.3V...

When you need to switch a lot of power, N channel MOSFETs are best for the job. These FETs can switch over 60A and 30V and are TO-220 package so they fit nicely into any breadboard or perfboard. Heat sinking is easy with TO-220's, but because of the very low Rds(on) of down to 0.009 ohms (depending on the Vgs - check the datasheet) you can get away with no heatsinking for pretty high loads! The threshhold voltage is also very low, less than 2.5V...

Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. When something passes between the two, and its not transparent to IR, then the 'beam is broken' and the receiver will let you know. Compared to PIR sensors, breakbeams are faster and allow better control of where you...

Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects). These are ultra bright 150mcd! You can drive these with less current to get the same brightness to save power, or crank them up to...

This is a great first stepper motor, good for small projects and experimenting with steppers. This uni-polar motor has a built in mounting plate with two mounting holes. There are only 32 step (11.25 degree) per revolution, and inside is a 1/16 reduction gear set. (Actually its 1/16.032 but for most purposes 1/16 is a good enough approximation) What this means is that there are really 32*16.032 steps per revolution = 513 steps! The shaft is...

Is this not the cutest little display for the Raspberry Pi? It features a 2.8" display with 320x240 16-bit color pixels and a resistive touch overlay. The plate uses the high speed SPI interface on the Pi and can use the mini display as a console, X window port, displaying images or video etc. Best of all it plugs right in on top! This updated design fits perfectly onto the Pi Zero, Pi 3, Pi 2 or Model A+, B+! (Any Pi with a 2x20...

The first 'official' Pi Zero case from the Raspberry Pi Foundation is here in Raspberry Pi's sleek pink and white! While we've had our own classic Pi Zero case for a little while now, the Pi Foundation celebrates the release of the Pi Zero W with this impressive, well-designed effort that is definitely what we've come to expect from the folks who made the Raspberry Pi. The case comes in four parts – a pink...

Your power supply problems just got SOLVED! 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) UBEC stands for "universal battery eliminator circuit" and this UBEC is designed to replace a 5V supply in RC planes and 'copters but its also great for any kind of...

Is this not the cutest little display for the Raspberry Pi? It features a 2.8" display with 320x240 16-bit color pixels and a resistive touch overlay. The plate uses the high speed SPI interface on the Pi and can use the mini display as a console, X window port, displaying images or video etc. Best of all it plugs right in on top! It's designed to fit nicely onto the Pi 1 Model A or B but also works OK with the Pi Zero, Pi 3, Pi 2 or Pi...

Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects). These are ultra bright 165mcd! You can drive these with less current to get the same brightness to save power, or crank them up to...

This adapter board is designed to make it easier to use ARM dev boards that use slimmer 2x5 (0.05"/1.27mm pitch) SWD cables for programming.  It's helpful for using products like the JTAGulator, STLink or SEGGER J-Link with tiny boards that use the 10-pin SWD programming connector, often Cortex M0 or M3's. This board comes with no cables.  It's really just the breakout board and some header if you need it - but is super helpful...

NOTE: This product is only designed for use with solar panels sold at the Adafruit store. We cannot guarantee this will work with solar panels purchased elsewhere. Please purchase this kit and panels from Adafruit to ensure optimized functionality! A 2.1mm adapter cable is also required to adapt a solar panel to the DC power jack. Make your projects to go green this summer with our specialized USB/Solar Lithium Ion Polymer Battery charger! This...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for many projects. Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. You can make the LEDs fade and twinkle by using the PWM (a.k.a. analogWrite)...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming UNTIL...

This adapter board is designed for adapting a 'classic' 2x10 (0.1"/2.54mm pitch) JTAG cable to a slimmer 2x5 (0.05"/1.27mm pitch) SWD Cable.  It's helpful for using products like the JTAGulator or SEGGER J-Link with tiny boards that use the 10-pin SWD programming connector. This board comes with no cables.  It's really just the adapter - but is super helpful when you want to use JTAG debugging on boards that can't support 2x10...

Pump up the volume with this 20W stereo amplifier! This slim little board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each. Power it with 5-12VDC using the onboard DC power jack and plug stereo line level into the 3.5mm stereo headphone jack and jam out with ease. Since it's class D, its completely cool-running, no heat sinks are required and it's extremely efficient - up to 93%...

Ah the venerable 7805, who amongst us has not used this popular linear regulator? This big chunky regulator will help you get your 7-35V battery or wall adapter down to a nice clean 5.0V with 2% regulation. Perfect for just about all electronics!  This is the TO-220 version, with up to 1.5A current capability, and has internal current limiting + thermal shut-down protection which makes it sturdy and pretty much indestructible - at least...

This is a fancy upgrade to standard 16x2 LCDs, instead of just having blue and white, or red and black, this LCD has full color RGB characters on a dark/black background! That means you can change the character display colors to anything you want - red, green, blue, pink, white, purple yellow, teal, salmon, chartreuse. This LCD looks strikingly good in person We had these custom made to our specification so that you can use them in existing LCD...

Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects). These are ultra bright 125mcd! You can drive these with less current to get the same brightness to save power, or crank them up to...

Ah the esteemed LD1117, who amongst us has not used this popular low drop voltage regulator? This big chunky regulator will help you get your 4-15V battery or wall adapter down to a nice clean 3.3V with 1% regulation. Perfect for just about all electronics!  This is the TO-220 version, with up to 800mA current capability, and has internal current limiting + thermal shut-down protection which makes it sturdy and pretty much...

This is a fancy upgrade to standard 16x2 LCDs, instead of just having blue and white, or red and black, this LCD has black characters on a full color RGB-backlight background! That means you can change the background color to anything you want - red, green, blue, pink, white, purple yellow, teal, salmon, chartreuse, or just leave it off for a neutral background. This LCD is the most daylight readable character LCD we have and is very beautiful...

These Simple RF receivers are the easiest way possible to add wireless control, painlessly! There's no programming, configuring or addressing - simply power the receiver with ~5 VDC and press the buttons on our matching RF keyfob remote. When the A button is pressed, it activates the first pin, when the B button is pressed, it activates the second one, and so forth for all four buttons. There's no microcontroller required, its just a...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for many projects. Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. You can make the LEDs fade and twinkle by using the PWM (a.k.a. analogWrite)...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for many projects. Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. You can make the LEDs fade and twinkle by using the PWM (a.k.a. analogWrite)...

Get the most out of your regulators, transistors and other TO-220 packaged chips by clipping on a heat-sink. Your transistor or regulator may advertise it can handle high currents but when multiplied by the drop voltage, the Wattage may be too high for the bare chip! Most TO-220's can disipate about 2W's worth without a sink. This basic, and easy-to-use 23°C/W sink will let you burn about 4 Watts of power through a TO-220 (assuming...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for many projects. Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. You can make the LEDs fade and twinkle by using the PWM (a.k.a. analogWrite)...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be very small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any...

Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. When something passes between the two, and its not transparent to IR, then the 'beam is broken' and the receiver will let you know. Compared to PIR sensors, breakbeams are faster and allow better control of where you...

Is your house haunted? Or, rather, are you convinced that your house is haunted but have never been able to prove it since you've never had a camera that integrated with your Raspberry Pi Zero but was still small enough that the ghosts wouldn't notice it? Luckily, the Zero   Spy Camera for Raspberry Pi Zero is smaller than a thumbnail with a high enough resolution to see people, or ghosts, or whatever it is you're looking...

Interested in learning how Bluetooth Low Energy works down to the packet level? Debugging your own BLE hardware, and trying to spot where something is going wrong? Or maybe you're writing a custom application for your phone or tablet that needs to talk to existing BLE hardware, but you don't know how it works beneath the surface? We have the perfect tool for you! This Bluefruit LE Friend is programmed with a special firmware image that...

This is a great first stepper motor, good for small projects and experimenting with steppers. This uni-polar motor has a built in mounting plate with two mounting holes. There are only 32 step (11.25 degree) per revolution, and inside is a 1/16 reduction gear set. (Actually its 1/16.032 but for most purposes 1/16 is a good enough approximation) What this means is that there are really 32*16.032 steps per revolution = 513 steps! The shaft is...

We love all our Feathers equally, but this Feather is very special. It's our first Feather that is  specifically  designed for use with CircuitPython! CircuitPython is our beginner-oriented flavor of MicroPython - and as the name hints at, its a small but full-featured version of the popular Python programming language specifically for use with circuitry and electronics. Please note ,   CircuitPython does not come preloaded....

If you've ever been curious about software defined radio (SDR), this USB stick is the easiest way possible to have fun with a powerful, configurable receiver. Packed with the powerful RTL2832U and R820T tuner, it can tune into signals from 24MHz to 1850MHz. That means you can use a computer (with Windows, Mac, or Linux) to tune into: FM Radio, AM signals (but not AM radio), CW (morse code!), unencrypted radio signals (such as those used by...

"You see, wire telegraph is a kind of a very, very long cat.  You pull his tail in New York and his head is meowing in Los Angeles.  Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there.  The only difference is that there is no cat." Sending data over long distances is like magic, and now you can be a magician with this range of powerful and easy-to-use radio...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for many projects. Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. You can make the LEDs fade and twinkle by using the PWM (a.k.a. analogWrite)...

The world's first and only open-source hardware charger: The MintyBoost®! New version! Works with the new iPhone 4 & 5 and more! Please review the Minty Boost project page(s) before purchase and assembly!, some phones require different modifications to the kit to charge properly! Some phones such as the *iPhone 3gs are very sensitive to charging via USB and may not work in all environments or configurations. Make your own...

The Adafruit Feather nRF52 Pro is another Bluetooth Low Energy board for advanced projects and users who want to use a fully open source Bluetooth Low Energy 5.0 stack . It has a native-Bluetooth chip, the nRF52832, as well as built in USB Serial and battery charging!  We have other boards in the Feather family, check'em out here. This is a special Feather - unlike the rest of the Feather family, this board is not...

Adding a character display to your project or computer has never been easier with the new Adafruit USB or TTL serial backpack! This custom-designed PCB can connect to the back of any 16x2 or 20x4 character LCD and does everything you could want: printing text, automatic scrolling, setting the backlight, adjusting contrast, making custom characters, turning on and off the cursor, etc. It can even handle our RGB backlight LCDs with full 8-bit PWM...

Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects). These are ultra bright 125mcd! You can drive these with less current to get the same brightness to save power, or crank them up to...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be very small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any...

Make your Internet of Things device cable-free by adding WiFi. Take advantage of the Raspberry Pi and Beagle Bone's USB port to add a low cost, but high-reliability wireless link. We tried half a dozen modules to find one that works well with the Pi and Bone without the need of recompiling any kernels: its supported by the Bone's Angstrom/Debian installation that comes with each Bone as well as Raspbian and just about any other modern Pi...

I like big seven-segment displays and I cannot lie! Design a clock, timer or counter into your next project using our pretty, candy-bar sized 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments there is a top right dot (perhaps useful as a degrees symbol) and two sets of colon-dots (good for time-based projects). These are ultra bright 400mcd per segment! Each segment is made...

Hydro dipping is a fun, hands-on way of adding printed designs to any surface! This process can be done on any material that can hold the base coat and can be submerged into water. Works really well with any 3D printed project, but molded and cast parts also benefit. You've probably seen cool videos of motorcycle helmets and ceramic statues being dipped - when done right you can cover an entire shape with colorful ink. Start...

Need a nice little 3.3V regulator? We rather like the very-low-dropout L4931 from ST! This little guy will help you get your 4-20V battery or wall adapter down to a nice clean 3.3V with 2% regulation. Perfect for just about all electronics!  This is a TO-92 package version, with up to 250mA current capability, and has internal current limiting + thermal shut-down protection which makes it sturdy and pretty much indestructible - at least...

Make your Internet of Things device cable-free by adding super WiFi. Take advantage of the Raspberry Pi and Beagle Bone's USB port to add a low cost, but high-reliability wireless link. We tried half a dozen modules to find ones that work well with the Pi and Bone without the need of recompiling any kernels: its supported by the Bone's Angstrom installation that comes with each Bone as well as the Adafruit Occidentalis distribution....

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, or input with a pullup. There's even the ability to get an interrupt via an external pin when any of the inputs change so you don't have to keep polling the chip. Use this chip from...

Is your house haunted? Or, rather, are you convinced that your house is haunted but have never been able to prove it since you've never had a camera that integrated with your raspberry pi but was still small enough that the ghosts wouldn't notice it? Luckily, the Spy Camera for Raspberry Pi is smaller than a thumbnail with a high enough resolution to see people, or ghosts, or whatever it is you're looking for. It's about the size...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming...

Our Adafruit Bluefruit LE (Bluetooth Smart, Bluetooth Low Energy, Bluetooth 4.0) nRF8001 Breakout allows you to establish an easy to use wireless link between your Arduino and any compatible iOS or Android (4.3+) device. It works by simulating a UART device beneath the surface, sending ASCII data back and forth between the devices, letting you decide what data to send and what to do with it on either end of the connection. Unlike classic...

The first 'official' case from the Raspberry Pi Foundation is here in Raspberry Pi's sleek pink and white! While we've had our own set of cases for awhile now, the Pi foundation's first foray into the case world is an impressive, well-designed effort and definitely what we've come to expect from the folks who made the Raspberry Pi. The case comes in five parts so you can snap in sides or tops according to how...

Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects). These are ultra bright 145mcd! You can drive these with less current to get the same brightness to save power, or crank them up to...

Feather is the new development board from Adafruit, and like its 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 with Headers - 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! We have...

Punch in your secret key into this numeric matrix keypad. This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad. Check the tutorials tab for links to an Arduino library...

Add a mini printer to any microcontroller project with this very cute thermal printer. Thermal printers are also known as receipt printers, they're what you get when you go to the ATM or grocery store. Now you can embed a little printer of your own into an enclosure. This printer is ideal for interfacing with a microcontroller, you simply need a 3.3V-5V TTL serial output from your microcontroller to print text, barcodes, bitmap graphics,...

Metro is our series of microcontroller boards for use with the Arduino IDE. This new Metro M0 Express board looks a whole lot like our original Metro 328, but with a huge upgrade. Instead of the ATmega328, this Metro features a ATSAMD21G18 chip, an ARM Cortex M0+. It's our first Metro that is designed for use with CircuitPython! CircuitPython is our beginner-oriented flavor of MicroPython - and as the name hints at, its a small but...

For storing small parts (especially SMT/SMD components), these little modular boxes are ideal. They have individual clear pop-open covers so you can keep only the ones you want open - less risk of mixing up parts or having a spill. The brilliance of these boxes is that they also snap together, in any configuration you want. You can mix all the sizes to make the ideal box for your needs, and add on more containers as necessary. There's a...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming UNTIL...

This is a fancy upgrade to standard 20x4 LCDs, instead of just having blue and white, or red and black, this LCD has full color RGB characters on a dark/black background! That means you can change the character display colors to anything you want - red, green, blue, pink, white, purple yellow, teal, salmon, chartreuse. This LCD looks strikingly good in person One nice thing about these LCDs is that they are an elegant upgrade, but you can use...

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. So far we've carried the very nice MAX31855 which is an SPI interface thermocouple amplifier. The '855 is great but if you have a lot of thermocouples to measure it isn't terribly easy to use. That's why we are also carrying the new '850 model from Maxim - it's a "1-Wire" thermocouple amp which can have any number of...

"You see, wire telegraph is a kind of a very, very long cat.  You pull his tail in New York and his head is meowing in Los Angeles.  Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there.  The only difference is that there is no cat." Sending data over long distances is like magic, and now you can be a magician with this range of powerful and easy-to-use radio...

Electronics and water don't usually mix - which is why liquid level sensing projects can be a little challenging. You can DIY a sensor but keeping it clean and un-oxidized can be a pain. The Optomax Digital liquid level switches are a clever solution for when you need a small sensor to detect liquid/water: super easy to use and very durable too! Inside the plastic sensor casing is an infrared (IR) LED and matching photo transistor. When in...

When Bunnie showed up at Adafruit with the prototype for his Chibitronics Circuit Stickers we were all like "How on earth does that work?" and he was all like "Z-Axis tape - Its amazing!" And we agreed, so we decided to get some in our Materials section since its so cool. Z-axis tape is made by 3M, and is used to bond two conductive surfaces together and allow a small (we'd say keep it under 100mA) current to flow through...

A Feather board without ambition is a Feather board without FeatherWings! This is the Non-Latching Mini Relay FeatherWing . It gives you power to control, and control over power. Put simply, you can now turn on and off lamps, fans, solenoids, and other small appliances that run on up to 250VAC or DC power using any Feather board. Using our Feather Stacking Headers or Feather Female Headers you can connect a...

The awesome new Teensy 3.6 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.6 brings a low-cost 32-bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.6 is an upgrade over 3.2 and 3.5, for when you need even more power ! Version 3.6 features a 32 bit 180 MHz ARM Cortex-M4 processor...

Need a nice little 5V regulator? We rather like the very-low-dropout L4931 from ST! This little guy will help you get your 5.5-20V battery or wall adapter down to a nice clean 5V with 2% regulation. Perfect for just about all electronics!  This is a TO-92 package version, with up to 300mA current capability, and has internal current limiting + thermal shut-down protection which makes it sturdy and pretty much indestructible - at least...