Using clear, easy-to-follow examples, Programming Arduino: Getting Started with Sketches  - Second Edition reveals the software side of Arduino and explains how to write well-crafted sketches using the modified C language of Arduino. No prior programming experience is required! The downloadable sample programs featured in the book can be used as-is or modified to suit your purposes. Note: As of March 22nd 2017, we are now selling the Second...

No, this book doesn't have 472 pages of raspberry fruit pie recipes.  But it does teach you basic principles to help you use your Raspberry Pi with new, developing technologies.  It's a great addition to the Getting Started with Raspberry Pi book and is an excellent next step for your Raspberry Pi needs. The "recipes" in this book are all different tutorials on how to run your credit-card sized computer with Linux,...

Program your own Raspberry Pi projects! An updated guide to programming your own Raspberry Pi projects. Learn to create inventive programs and fun games on your powerful Raspberry Pi--with no programming experience required. This practical book has been revised to fully cover the new Raspberry Pi 2, including upgrades to the Raspbian operating system. Discover how to configure hardware and software, write Python scripts, create user-friendly...

Get your Particle (formally known as Spark) Photon moving with a PhoBot Robotics shield. No, this is not a robot that makes you a delicious bowl of Vietnamese soup.  Instead, it's a board from Simon Monk that's kind of like a Motorshield for your Spark Core or Particle Photon that makes controlling small robots easy! The board features bi-directional motor control using a TB6612 dual H-bridge, so it can control one...

These displays are small, only about 1.3" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its...

Listen up! This 2.8" x 1.2" speaker is a great addition to any audio project where you need 4 ohm impedance and 3W or less of power. We particularly like this speaker as it is small and enclosed for good audio volume and quality. It has a handy JST 2PH input cable to add audio to your displays and other projects (this connector is part of the JST-PH series which is ~2.0mm spacing). This...

These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its...

These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x32 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its...

These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x32 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its...

Listen up! This single  2.8" x 1.2" speaker is the perfect addition to any audio project where you need 4 ohm impedance and 3W or less of power. We particularly like these speakers as they are small and enclosed for good audio volume and quality. This speaker does not come with a connector on the end, it's just plain bare wires! Works peachy-keen with any of our audio amps as well, such as the MAX98306, TS2012 or...

If you've been diggin' our monochrome OLEDs but need something bigger, this display will delight you! These displays are 2.42" diagonal , and very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to...

If you've been diggin' our monochome OLEDs but need something bigger, this display will delight you. These displays are 2.7" diagonal, and very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is...

These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x32 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its...

Always be ready rock out or record with this 5-watt Guitar Amplifier, Portable Recorder, and USB Audio Interface from Monoprice. This handheld 5-watt amp delivers plenty of loudness and clarity for ad hoc al fresco performances. It has a built-in guitar distortion effect, so you can get great sound without needing external processors. In addition to the 1/4" guitar cable input, it features a 3.5mm microphone input, so you can add...

In collaboration with Google and Mongoose OS, Adafruit's releasing an IoT Core Pack based around our Feather HUZZAH32! This kit includes a pre-soldered  Adafruit Feather HUZZAH with ESP32 WiFi and some sensors and components to get you started on your IoT journey. Feather is a development board from Adafruit that, like its namesake, is thin, light and lets you fly.  We designed Feather to be a new standard for portable...

If you've been diggin' our monochome OLEDs but need something bigger, this display will delight you. These displays are 2.3" diagonal, and very readable due to the high contrast of an OLED display. This display is made of 128x32 individual blue OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why...

If you've been diggin' our monochrome OLEDs but need something bigger, this display will delight you! These displays are 1.54" diagonal , and very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to...

The Monoprice Inventor II 3D Printer Touchscreen with WiFi is a perfect entry-level 3D printer with small footprint and reliable performance. It comes equipped with WiFi so you don't need a cable tether and a lovely 3.5" color touchscreen for settings & feedback. The chassis housing is enclosed to keep your prints safe, and if you wanted to upgrade this printer for a heated bed, you'll be able to keep the build volume warm. This...

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we...

A long time ago we made a Pi into a WiFi gateway that also blocked ads but the Pi Hole project does a  way  better job! This kit will make your Pi Zero W act as a DNS ( Domain Name Server ) The kind of device that tells you that  adafruit.com  is known as IP address 104.20.38.240. Except, when Pi Hole DNS is installed, it will do a special trick, when it is asked for the IP address of ads.adserver.com (for example) it will...

Peep dis! Have you always wanted to have another pair of eyes on the back of your head? Or outfit your costume with big beautiful orbs? The MONSTER M4SK is like the Hallowing but twice as good, with two gorgeous 240x240 pixel IPS TFT displays, driven by a 120MHZ Cortex M4 processor that can pump out those pixels super fast. You'll get the same quality display as our Raspberry Pi Eyes kit but without needing to tote around a full Linux...

This item is just for the Trellis driver PCB assembly: LEDs and buttons not included. 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 4x4 elastomer keypad. Each Trellis PCB has 4x4 pads and 4x4 matching spots for 3mm LEDs. The circuitry on-board handles the background key-presses and LED...

If you're looking for the most compact li'l display for a Raspberry Pi (most likely a Pi Zero) project, this might be just the thing you need! The Adafruit 128x32 PiOLED is your little OLED pal, ready to snap onto any and all Raspberry Pi computers, to give you a little display. The PiOLED comes with a monochrome 128x32 OLED, with sharp white pixels. The OLED uses only the I2C pins so you have plenty of GPIO connections...

These displays were used in old Nokia 5110/3310 cell phones (before the smart-phone fad turned every cell phone into a TV). It's a 84x48 pixel monochrome LCD display. These displays are small, only about 1.5" diagonal, but very readable and come with a white backlight. This display is made of 84x48 individual pixels, so you can use it for graphics, text or bitmaps. These displays are inexpensive, easy to use, require only a few...

This cable is easy to understand - you get a 3.5mm mono audio plug on one end, and two alligator clips on the other. It's also really easy to use, perfect for clipping onto a micro:bit or Circuit Playground! It's also good for use with AT (accessibility technology) buttons as they use 3.5mm mono cables for interconnection. Black wire connects to sleeve, white wire connects to tip. Note: The alligator clips may be Black/White or...

This cable is easy to understand - you get a 3.5mm mono audio jack on one end, and two alligator clips on the other. It's also really easy to use, perfect for clipping onto a micro:bit or Circuit Playground! It's also good for use with AT (accessibility technology) buttons as they use 3.5mm mono cables for interconnection. Black wire connects to sleeve, white wire connects to tip.

Build your own ambient-light addition for a monitor or media PC television with the Adalight project pack! This project pack is for our "Adalight" project tutorial. By running the Processing code on your computer, the halo of LEDs will follow the screen colors to provide an awesome ambient light display that adds pop to TV shows, movies or games! Works using open source Processing and Arduino - so it'll run on Mac, Windows or Linux...

You've seen all the cool projects on Adafruit - building and making amazing electronics. You want to get started making, but... you don't know how to code! Now what, just give up? Never! You, yes you can learn how to code with the great tutorials from Codecademy. Best of all, you can learn to code while learning electronics at the same time! We’ve partnered with our friends at Codecademy to create a brand new course that will teach...

Easy e-paper finally comes to your Feather, with this breakout that's designed to make it a breeze to add a monochrome eInk display. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic electronic paper 'static' displays - that means the image stays on the display even when power is completely disconnected. The image is also high contrast and very daylight readable....

Woah, the cyber-future is here! Flexible E-Ink has been demo'd at high tech events for years but now you can actually get your paws on it. This display is true E-Ink / E-Paper, once an image is displayed it will stay even once you remove all power. The image is also high contrast and very daylight readable. It really does look just like printed paper! This flexible display sports a 2.13" monochrome (black and white) display ....

Easy e-paper finally comes to microcontrollers, with this breakout that's designed to make it a breeze to add a monochromatic eInk display. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic electronic paper 'static' displays - that means the image stays on the display even when power is completely disconnected. The image is also high contrast and very daylight...

Woah, the cyber-future is here! Flexible E-Ink has been demo'd at high tech events for years but now you can actually get your paws on it. This display is true E-Ink / E-Paper, once an image is displayed it will stay even once you remove all power. The image is also high contrast and very daylight readable. It really does look just like printed paper! This flexible display sports a 2.9" monochrome (black and white) display ....

Easy e-paper finally comes to microcontrollers, with this breakout that's designed to make it a breeze to add a eInk display. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic electronic paper 'static' displays - that means the image stays on the display even when power is completely disconnected. The image is also high contrast and very daylight readable. It really...

Here is the perfect kit for mounting convex lenses (glass  or  plastic) to your Monster M4sk! These acrylics has been laser-cut specifically for lenses with a lip-edge, so we can't guarantee it'll fit with any ol' convex lens. But it does work great with ours. And of course, the mounting hardware is included, so you can snap it right onto your M4SK. Takes less than five minutes to assemble, you just need a...

Pipe audio in or out of your project with this very handy breadboard-friendly audio jack. It's a mono jack with a disconnect pin so you'll get a ground sleeve pin, a left tip pin and a pin that will be disconnected when a jack is inserted. You can use any 3.5mm audio cable with this jack. The pins are on 0.1" spacing so it plugs very solidly ( and vertically! ) into a breadboard, perma-proto or perf-board. Works best if...

Add a glorious 2048x1536 retina-blasting, ultra-high pixel density, IPS display to any computer with a Thunderbolt/DisplayPort port. This product comes with a new 9.7" diagonal TFT display module (the same one used in the iPad 3 & 4), along with our custom made driver board, a stand-up monitor enclosure kit, 10' DisplayPort cable and 9V power adapter. The driver board is a work of art (it was designed by resident engineer KTOWN) -...

Pipe audio in or out of your project with this very handy panel mount audio jack. It's a mono jack with a disconnect pin so you'll get a ground sleeve pin, a left tip pin and a pin that will be disconnected when a jack is inserted. You can use any 3.5mm audio cable with this jack. Each jack comes with two solder eyelets and a panel mounting hex-nut. They made of all-metal construction with paper phenolic spacers. 3.5mm connectors...

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...

The VS1053 is a multi-format audio codec chip, loved by many for its simplicity and power. CODEC stands for "Coder & Decoder" and that's pretty much what this little chip does - it can decode digital audio files such as MP3, FLAC, AAC, OGG and WAV as well as encode audio into digital formats (right now only WAV and OGG are supported for encoding). For many small microcontrollers, the mathematical calculations for decoding MP3...

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,...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. They output 6V at 330 mA via 3.5mm x 1.1mm DC jack connector. The substrate is an aluminum / plastic composite, specifically designed to be strong and lightweight. They can easily stand up to typical outdoor use including being dropped and leaned on....

For all those who feared their Game Boy days would be but a memory, worry no more! The Game Boy may be dead, but with this pack you'll have a chance to revive it. We've collected all the right parts so you can assemble the guts of your very own DIY GameGRRL - a portable Raspberry Pi running MAME and NES emulators. This is version 2.0! We've updated this project for the Raspberry Pi 2 or 3 with more buttons (D-Pad,...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. They output 6V at 530 mA via 3.5mm x 1.1mm DC jack connector - a nice upgrade to the 2W panels we have been carrying. The substrate is an aluminum / plastic composite, specifically designed to be strong and lightweight. They can easily stand up to...

So you have a Teensy and a RGB LED Matrix Panel and you want an easy way to add graphics to your matrix without having to toss aside your Teensy or do too much soldering. Enter the SmartMatrix SmartLED Shield (V4) for Teensy 3.2, 3.5, or 3.6   (not the Teensy LC)! The SmartLED Shield gives you an easy way to connect up a Teensy 3.2, Teensy 3.5, or Teensy 3.6 to one of our RGB LED Matrix Panels. The example...

Wow, is this not the most useful thing you did not know existed or what? Its a switching wall adapter where you can easily change the voltage! It's like a benchtop supply you can take with you anywhere. 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. It comes with a range of tips, such...

These panels come to us from Voltaic Systems, makers of excellent solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. With a high efficiency monocrystalline cell, they output 6V at 180 mA via 3.5mm x 1.1mm DC jack connector. The substrate is an aluminum / plastic composite, specifically designed to be durable and lightweight. They can easily stand up to typical outdoor use including being dropped and...

Sugru! Soft-touch silicone rubber that molds and sets permanently. Sticks to aluminum, steel, ceramics, glass, wood and some fabrics + plastics! sugru is the incredible new air-curing rubber for hackers, makers, gadget lovers & anyone else who wants to make things or make their stuff work better. Self-adhesive to most other materials, and flexible when cured, sugru is a versatile tool for hackers and makers - Repair and strengthen damaged...

Some of us just can't make up our minds: just deciding what to have for dinner is a major decision process. We want it all! And now we can have it all, with this python-powered internet-of-things powerhouse. It's like getting to have pizza AND sushi AND tacos AND casserole AND a burger for dinner, wow! Imagine five networks in one perfectly-formed, same-small-foot-print-as-WiPy- LoPy-and SiPy, IoT development board. MicroPython...

The Pimoroni Speaker pHAT crams an I2S DAC and mono amplifier, a tiny 8Ω 2W speaker, and a 10 LED bar graph all onto one teeny little pHAT. It's the neatest way to add audio to your Pi project, and its beautiful artwork evokes an 80s boombox! Pimoroni isn't claiming audiophile sound quality, but it's perfect for fun little projects where you want to add sound output – speech, notification sounds, or light...

The M5StickV AI Camera  is a cute, tiny AI camera with capabilities spanning from facial recognition/detection, object detection/classification, shape recognition, detecting targets and sizes in real-time, among other video/audio features. The camera is powered by Kendryte K210, an edge computing system-on-chip with dual-core 64bit RISC-V CPU and state-of-art neural network processor.  This module comes with the...

If you have a computer or tablet or device with HDMI output but you want to connect it to a projector, monitor or display with VGA input, you have come to the right place! This nifty adapter cable has a classic HDMI plug connector at one end and at the other end a DB-15 VGA connector (it has hex nuts that you can remove if you are trying to mate it with a cable that also has hex nuts). There's also an audio jack on the side, this provides...

The  Pimoroni Picade Cabinet  is a stylish, retro, and fun arcade cabinet for your Raspberry Pi! The Picade Cabinet comes in kit form for you to build at home. All parts, panels, and components are included - you just need to supply the Raspberry Pi, micro SD card, and power adapter. We recommend using a Raspberry Pi 3 as the extra processing power gives great performance in many emulators. This is the 10" desktop arcade...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. They output 6V at 930 mA via 3.5mm x 1.1mm DC jack connector - a nice upgrade to the 2W or 3W panels we have been carrying. The substrate is an aluminum / plastic composite, specifically designed to be strong and lightweight. They can easily stand up...

The Pimoroni Picade Cabinet is a stylish, retro, and fun arcade cabinet for your Raspberry Pi! The Picade Cabinet comes in kit form for you to build at home. All parts, panels, and components are included - you just need to supply the Raspberry Pi and power adapter. We highly recommend using a Raspberry Pi 3 as the extra processing power gives great performance in many emulators. This is the desktop arcade cabinet version of the Pimoroni...

Pycom introduces the WiPy 3.0 –  a tiny MicroPython enabled WiFi & Bluetooth IoT development platform. With a 1KM WiFi range, state of the art Espressif ESP32 chipset and dual processor, the WiPy is all about taking the Internet of Things to the next level. Create and connect your things everywhere. Fast. Features Powerful CPU, BLE and state of the art WiFi radio1KM WiFi RangeMicroPython enabled, the Linux of IoT for fast...

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...

With WiFi, BLE and cellular LTE CAT M1/NB1, the Pycom GPy is a triple-bearer MicroPython enabled micro controller - the perfect enterprise grade IoT platform for your connected Things. Create and connect your things everywhere, fast.  Imagine three networks in one perfectly-formed, same-small-foot-print-as-WiPy-LoPy-FiPy-and-SiPy, IoT development board. MicroPython enabled. GPy includes  WiFi , Bluetooth LE and dual LTE-M (CAT M1 and...

Build your very own neighboor cam, desktop cam, or wildlife cam, or security cam, or...or... really any kind of camera! The Pimoroni   OctoCam kit has everything* you'll need, including a Pi Zero W, a super-small 5MP camera, a fun octopus acrylic mount with four suction cups, and a desk stand. It'll take around 30 minutes to put it all together (check out Pimoroni's assembly guide for details). Note:...

With so many connectivity options, Pycom's  LoPy4 is a lot like an amazing, multi-course brunch. You've got LoRa playing your favorite morning public access radio station, WiFi talking to your smart coffee maker, SigFox and cream cheese on a bagel, and a baker's dozen of Bluetooth muffins-- I mean, blueberry muffins! Boosted with the Espressif ESP32 chipset, the LoPy is one of the fanciest...

These 6 Volt, 9 Watt  panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. They are waterproof , scratch resistant , and UV resistant . Using a high efficiency monocrystalline cell and outputting 6V at ~1.5A via 3.5mm x 1.1mm DC jack connector, they are a nice upgrade to the 2W or 3W panels we have been carrying. The substrate is an aluminum / plastic composite, specifically designed to be...

Never be bored again with an adorable little arcade cabinet you can fit in your bag! This Raspberry Pi-powered kit combines our sharp PiTFT 2.8" display, mini thumbstick, mini arcade push buttons, and a whole bunch of components to create the most adorable arcade cabinet in the known universe . Comes as a big kit with lots of parts including all electronic components, the laser cut enclosure, and a blank SD card (you'll need to...

Stop noodling around with an LM317 and wall wart - you can wield all the power with the DP832 Triple Output 195 Watt Power Supply! If you're doing any kind of electronics past Arduino-type hacking, you've probably been in a position where you need reliable power and the ability to source, analyze, and coordinate it to best suit your needs. A motor that wants 12V @ 2A? 5V @ 3A? Current-limited power for testing out high-watt...

For all those who feared their Game Boy days would be but a memory, worry no more! The Game Boy may be dead, but with this pack you'll have a chance to revive it in style. We've collected all the right parts so you can assemble the guts of your very own DIY GameGRRL - a portable Raspberry Pi running MAME, NES, Atari2600 and other fine emulators (via RetroPie/EmulationStation) It's called the Pocket PiGRRL and it's...

We are now stocking Getting Started with Processing - Second Edition. A Quick, Hands-on Introduction By Casey Reas, Ben Fry. We get asked the following a lot from beginners "how do you learn how to program" and our answer is usually "try processing". It's open source, free to download, has a massive community and the things you learn will help you with learning Arduino, which is usually within the context we're...

If you didn't think that the Raspberry Pi Zero could possibly get any better, then boy do we have a pleasant surprise for you! The new Raspberry Pi Zero W offers all the benefits of the Pi Zero v1.3, but with one big difference – built-in WiFi! More specifically, this giant upgrade is the addition of a BCM43143 WiFi chip BUILT-IN to your Raspberry Pi Zero – just like the Pi 3! No more pesky WiFi adapters - this Pi is...

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...

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...

This is the Adafruit Feather M0 RFM95 LoRa Radio (900MHz) . We call these RadioFruits , our take on an microcontroller with a "Long Range (LoRa)" packet radio transceiver with built in USB and battery charging. Its an Adafruit Feather M0 with a 900MHz radio module cooked in! Great for making wireless networks that are more flexible than Bluetooth LE and without the high power requirements of WiFi. Feather is the new development board...

If you didn't think that the Raspberry Pi Zero W could possibly get any better, then boy do we have a pleasant surprise for you! The new Raspberry Pi Zero WH  offers all the benefits of the Pi Zero W, but with one big difference – a pre-soldered GPIO header! This upgrade is the addition of a BCM43143 WiFi chip BUILT-IN to your Raspberry Pi Zero – just like the Pi 3! No more pesky WiFi adapters - this Pi is WiFi...

PowerBoost 1000C is the perfect power supply for your portable project!  With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry project running even while recharging the battery!  This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects. If you dont need the 1A battery charger, smart...

If you've ever ordered and wire up a 9-DOF sensor, chances are you've also realized the challenge of turning the sensor data from an accelerometer, gyroscope and magnetometer into actual "3D space orientation"! Orientation is a hard problem to solve. The sensor fusion algorithms (the secret sauce that blends accelerometer, magnetometer and gyroscope data into stable three-axis orientation output) can...

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...

The Adafruit Feather nRF52840 Express is the new Feather family member with Bluetooth Low Energy and native USB support featuring the nRF52840!  It's our take on an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB plus battery charging. With native USB it's even ready to join the CircuitPython party. We have other boards in the Feather family, check'em out here. This chip has twice the flash, and...

This Mini Power Meter with Voltage, Current, Watts, mAh & mWh Display (whew that is a mouth-full) is a lot like the USB In-Line Voltage and Current Meter we carry but can  be used with a wide range of voltages (not just USB connections). Measure the working voltage and current output for any project with this really fancy power meter. This power meter has a small LCD display that shows off voltage, watts, amps, and mAH and...

The Adafruit Feather nRF52 Bluefruit is another easy-to-use all-in-one Bluetooth Low Energy board, with a native-Bluetooth chip, the nRF52832!  It's our take on an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging. We have other boards in the Feather family, check'em out here. This chip has twice the flash, SRAM and performance of the earlier nRF51-based Bluefruit modules. Best of...

Listen to this good news - we now have a breakout board for a super tiny I2S MEMS microphone. Just like 'classic' electret microphones, MEMS mics can detect sound and convert it to voltage, but they're way smaller and thinner. This microphone doesn't even have analog out, its purely digital. The I2S is a small, low cost MEMS mic with a range of about 50Hz - 15KHz, good for just about all general audio recording/detection. For...

After months of searching, we finally have what we consider to be the ultimate conductive thread. It's thin, strong, smooth, and made completely of 316L stainless steel. Once you start working with this thread you'll quickly agree its optimal for any wearables work! This thread is 2 ply, a little thicker than every day polyester or cotton thread but still thin enough to be sewn by hand in medium-eye needles or with a sewing machine that...

Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it. Please check out the Trinket M0. It has built-in USB, more capabilities, and is comparable in price! Trinket may be small, but do not be fooled by its size! It's a tiny...

With some development boards, low power usage is an afterthought. Especially when price and usability is the main selling point. So what should you do when it's time to turn around and make that project of yours run on a battery or solar? Sure you  could  try to hot-air that regulator off, or you could jerry-rig a relay. Or, use a 555? Ugh, the options aren't that great. The  Adafruit TPL5110 Power Timer  is a...

Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it. Please check out the Trinket M0. It has built-in USB, more capabilities, and is comparable in price! Trinket may be small, but do not be fooled by its size! It's a tiny...

Its a mini panel-mountable HDMI monitor! So small and simple, you can use this display with any computer that has HDMI output, and the shape makes it easy to attach to a case or rail. This backpack features the TFP401 for decoding video, and includes the attached display so its plug-n-play. The TFP401 is a beefy DVI/HDMI decoder from TI. It can take unencrypted video and pipe out the raw 24-bit color pixel data - HDCP not supported! The 5"...

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 M0 Bluefruit LE  - our take on an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging. It's an Adafruit Feather M0 with a BTLE module, ready to rock! We have...

Hear the good news! This wee speaker is a great addition to any audio project where you need 8 ohm impedance and 1W or less of power. We particularly like this speaker as it is small and comes with nice skinny wires with a connector on the end. It has a handy "Molex PicoBlade" 1.25mm pitch 2-pin cable, which makes plugging into a board easy. Or you can cut off the connector and just solder/clamp onto...

Keep your Raspberry Pi® 4 Model B computer safe and snug in this solid ABS acrylic enclosure. This case keeps your Pi secure, has labeled holes for connector access, and even comes with four little bumper feet. You can use all of the connectors on the edges of the Pi: microHDMI, USB-C power, Ethernet, and the USB ports.  This enclosure is not compatible with the Raspberry Pi Model 2, 3, A, B, or B+! Be sure to check...

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...

Throw out all those Mini and Micro B USB cables you have in a plastic bin - the next generation of USB connectors is here with USB C ! You will start to see these connectors pop up on all sorts of devices, as the industry moves from micro B or lightening to the new standard. Well, at least until the next standard comes out USB C features a symmetric/reversible connector, more data pins and higher current output capability. But, for most...

This is a screen for advanced hackers who like the look of the TFT screen we've put into the TFT Gizmo and Monster M4sk. The 1.54" display has 240x240 16-bit full color pixels and is an  IPS  display, so the color looks great up to 80 degrees off axis in any direction. The TFT driver (ST7789) is very similar to the popular ST7735, and our Arduino library supports it well. This is just the display module! No PCB is included!...

The long awaited BME680 from Bosch gives you  all the environmental sensing you want  in one small package. This little sensor contains  temperature ,  humidity ,  barometric pressure,  and  VOC gas  sensing capabilities. All over SPI or I2C at a great price! Like the BME280 & BMP280, this precision sensor from Bosch can measure humidity with ±3% accuracy, barometric pressure with ±1...

This breakout board will solve all your power-monitoring problems. Instead of struggling with two multimeters, you can just use the handy INA219B chip on this breakout to both measure both the high side voltage and DC current draw over I2C with 1% precision. Most current-measuring devices such as our current panel meter are only good for low side measuring. That means that unless you want to get a battery involved, you have to stick the...

You've got your PyGamer, and you're ready to start jammin' on your favorite arcade games. You gaze adoringly at the charming silkscreen designed by Ada-friend PaintYourDragon. The nostalgia is palpable! Cradling the PCB in your hands, you realize there's something missing . You feel an overwhelming need to protect this incredible gaming console.  Prevent monsters, gremlins, big level bosses, or accidentally-spilled...

PowerBoost 500C is the perfect power supply for your portable project! With a built-in battery charger circuit, you'll be able to keep your project running even while recharging the battery! This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects. If you need a 1A battery charger, smart load-sharing, and 1A iOS resistors, check out...

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 M0 Adalogger  - our take on an 'all-in-one' Cortex M0 datalogger (or data-reader) with built in USB and battery charging. Its an Adafruit Feather M0 with a microSD holder ready to rock! We have other boards in the...

What's a wearable project without LEDs? Our favorite part of the Flora platform is these tiny smart pixels. Designed specifically for wearables, these updated Flora NeoPixels have ultra-cool technology: these ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as you like. They're easy to sew, and the chainable design means no...

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: ...

Would you like to add powerful and easy-to-use Bluetooth Low Energy to your robot, art or other electronics project? Heck yeah! With BLE now included in modern smart phones and tablets, its fun to add wireless connectivity. So what you really need is the new Adafruit Bluefruit LE UART Friend! The Bluefruit LE UART Friend makes it easy to add Bluetooth Low Energy connectivity to anything with a hardware or software serial port. We even have nice...

After months of searching, we finally have what we consider to be the ultimate conductive thread. It's thin, strong, smooth, and made completely of 316L stainless steel. Once you start working with this thread you'll quickly agree its optimal for any wearables work! This thread is 3 ply, thicker than every day polyester or cotton thread but still thin enough to be sewn by hand in medium-eye needles. This may be sew-able by a sewing...

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  Feather M0 Basic Proto , it has a bunch of prototyping space built right in. We have other boards in the Feather family, check'em out here! At the Feather M0's heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and...

Listen to this good news - we now have an all in one digital audio amp breakout board that works incredibly well with the Raspberry Pi! If you're looking for an easy and low cost way to get your digital sound files bumpin' then the MAX98357 I2S Amp Breakout is for you. It takes standard I2S digital audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. Perfect for adding compact...

Breathe easy with the SGP30 Multi-Pixel Gas Sensor, a fully integrated MOX gas sensor. This is a very fine air quality sensor from the sensor experts at Sensirion, with I2C interfacing and fully calibrated output signals with a typical accuracy of 15% within measured values. The SGP combines multiple metal-oxide sensing elements on one chip to provide more detailed air quality signals. This is a gas sensor that can detect a wide range of...

A Feather board without ambition is a Feather board without FeatherWings! 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! These displays are small, only about 1" diagonal, but very readable due to the high contrast of an...