Is there anything an Arduino can’t do? Well, for one, most of them can’t be powered directly from a 3.7V LiPo battery; much less charge and monitor that battery. The SparkFun LiPower Shield takes care of this by combining the functionality of two of our favorite battery power boards: the Power Cell and the Fuel Gauge.

The LiPower Shield allows you to connect a 3.7V single cell Lithium polymer battery which it will boost up to 5V and connect to the Arduino board’s 5V pin. The on-board MAX17043G+U IC is connected to the I2C lines (A4 and A5) so that your project can monitor it’s own power supply. The configurable alert interrupt pin on the MAX17043G+U IC is broken out to D2 which will activate when the LiPo gets to 32% or lower.

The charging circuit is configured to charge the LiPo at 100mA but by adding a resistor to the supplied through-holes you can boost this to 500mA. There is a mini-USB port on the shield which allows you to charge the battery from a USB power source or you can supply a separate regulated 5V source on the “charge” header.

Brand new and better than ever, we've replaced our Adafruit GPS shield kit with this assembled shield that comes with an Ultimate GPS module. This GPS shield works great with either UNO or Leonardo Arduinos and is designed to log data to an SD card. Or you can leave the SD card out and use the GPS for a geocaching project, or maybe a music player that changes tunes depending on where you are in the city. 

-165 dBm sensitivity, 10 Hz updates, 66 channels

Low power module - only 20mA current draw, half of most GPS's

Assembled & tested shield for Arduino Uno/Duemilanove/Diecimila/Leonardo (not for use with Mega/ADK/Due)

MicroSD card slot for datalogging onto a removable card

RTC battery included, for up to 7 years backup

Built-in datalogging to flash

PPS output on fix

Internal patch antenna + u.FL connector for external active antenna

Power, Pin #13 and Fix status LED

Big prototyping area

Each order comes with one assembled and tested shield, a stick of 0.1" male header and a 12mm coin cell. Some light soldering is required to attach the header to the shield in order to plug it into your Arduino. if you want to stack a shield on top, be sure to pick up a set of stacking headers to use instead. MicroSD card not included either, but we do stock them in the shop!If your project is going to be inside an enclosure, you'll love this shield as it has external antenna support. Simply connect an external active GPS antenna via a uFL/SMA cable to the shield and the module will automatically switch over to use the antenna. You can then place the antenna wherever you wish.We think this is the Ultimate GPS shield and we also think you'll agree! For more details, tutorials and example code check out our comprehensive tutorial

Adafruit Ultimate GPS Logger Shield - Includes GPS Module (0:55)

Snap the Pimoroni Unicorn Hat on top of a Raspberry Pi model A+ or a model B+ for a fun 8x8 RGB LED matrix powered directly from the Pi.

Unicorn HAT provides a wash of controllable color that is ideal for mood-lighting, 8x8 pixel art, persistence of vision effects, status indications, or just blasting colour into your surroundings.

64 RGB LEDs (WS2812B) each wtih 24-bit RGB color

Python API (NeoPixel compatible!)

EEPROM with Raspberry Pi HAT configuration details

LED data driven via DMA over PWM Pin #18

We sure love the ATmega328 here at Adafruit, and we use them a lot for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we need to go small, we use a Pro Trinket 3V or 5V, but when size isn't as much of a concern, and a USB-serial converter is required, we reach for an Adafruit METRO.

METRO is the culmination of years of playing with AVRs: we wanted to make a development board that is easy to use and is hacker friendly.

ATmega328 brains - This popular chip has 32KB of flash (1/2 K is reserved for the bootloader), 2KB of RAM, clocked at 16MHz

Power the METRO with 7-9V polarity protected DC or the micro USB connector to any 5V USB source. The 2.1mm DC jack has an on/off switch next to it so you can turn off your setup easily. The METRO will automagically switch between USB and DC.

METRO has 20 GPIO pins, 6 of which are Analog in as well, and 2 of which are reserved for the USB-serial converter. There's also 6 PWMs available on 3 timers (1 x 16-bit, 2 x 8-bit). There's a hardware SPI port, hardware I2C port and hardware UART to USB.

GPIO Logic level is 5V but by cutting and soldering closed a jumper, you can easily convert it to 3.3V logic

USB to Serial converter, there's a hardware USB to Serial converter that can be used by any computer to listen/send data to the METRO, and can also be used to launch and update code via the bootloader

Four indicator LEDs, on the front edge of the PCB, for easy debugging. One green power LED, two RX/TX LEDs for the UART, and a red LED connected to pin PB5

Easy reprogramming, comes pre-loaded with the Optiboot bootloader, which is supported by avrdude and only uses 512 bytes.

Beautiful styling by PaintYourDragon and Bruce Yan, in Adafruit Black with gold plated pads.

Works with all Adafruit designed shields!

This version of the METRO 328 comes as a fully assembled and tested development board but without any headers attached. We do include some through-hole headers that you can solder on if you like, or you can solder wires or header directly to the breakout pads. We also include 4 rubber bumpers to keep it from slipping off your desk.

Mac & Windows People! Don't forget to grab & install the FTDI VCP drivers from FTDI to make the COM/Serial port show up right! The default drivers may not support this FTDI chip!

Using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull levers, move joysticks… but what if we could take the buttons, levers and joysticks out of the equation? This is the MyoWare Muscle Sensor, an Arduino-powered, all-in-one electromyography (EMG) sensor from Advancer Technologies. The MyoWare board acts by measuring the filtered and rectified electrical activity of a muscle; outputting 0-Vs Volts depending the amount of activity in the selected muscle, where Vs signifies the voltage of the power source. It’s that easy: stick on a few electrodes (not included), read the voltage out and flex some muscles!

The MyoWare Muscle Sensor is the latest revision of the Muscle Sensor of old, now with a new wearable design that allows you to attach biomedical sensor pads directly to the board itself getting rid of those pesky cables. This new board also includes a slew of other new features including, single-supply voltage of +3.1V to +5V, RAW EMG output, polarity protected power pins, indicator LEDs, and (finally) an On/Off switch. Additionally, we have developed a few shields (Cable, Power, and Proto) that can attach to the Myoware Muscle Sensor to help increase its versatility and functionality!

Measuring muscle activity by detecting its electric potential, referred to as electromyography (EMG), has traditionally been used for medical research. However, with the advent of ever shrinking yet more powerful microcontrollers and integrated circuits, EMG circuits and sensors have found their way into all kinds of control systems.

Note: Biomedical sensor pads can be found in the Recommended Products section below to be purchased separately.

Get Started with the MyoWare Muscle Sensor Guide

Features

Wearable Design

Single Supply

+2.9V to +5.7V

Polarity reversal protection

+2.9V to +5.7V

Polarity reversal protection

Two Output Modes

EMG Envelope

Raw EMG

EMG Envelope

Raw EMG

Expandable via Shields

LED Indicators

Specially Designed For Microcontrollers

Adjustable Gain

0.82" x 2.06"

Locate your stuff! The Asset Tracker Kit from Particle contains all of the pieces you need to build a GSM + GPS location tracker for your most prized possessions. In addition to a GPS Shield, the Asset Tracker Kit comes with a weatherproof enclosure, so it’ll keep your electronics safe from the dust, dirt, and moisture of the great outdoors. Keep your bicycle, baby, and backpack safe--satellite lock onto this bargain project kit today!

The Asset Tracker Kit comes with a Particle SIM card with service in more than 100 countries worldwide, and includes 3 months of Particle's 1MB monthly data plan for IoT devices. All Electrons also include Particle's development tools, access to a cloud platform with messaging, and a SIM dashboard for managing and updating your new connected hardware.

The Electron is a GSM-only device, and does not support CDMA networks. Some US carriers are planning to sunset their 2G networks beginning in 2017, so the Electron 3G (Americas) is recommended for customers in the US.

This is the 2G Global version. Particle also offers two types of Electron 3G Kits—the aforementioned one for North and South America (850/1900 MHz) and one for Europe/Asia/Africa (900/1800 MHz). Check the full list of compatible countries for the location in which your product will be deployed.

Contents:

Electron

USB Micro B Cable

Particle SIM Card

Cellular Antenna

2000mAh LiPo Battery

Particle Sticker

Resistor 220-Ohm

Breadboard

Photoresistor

Bright LED - White

Basic Data Charges*:

Particle's 1MB monthly data plan: - 3 months included with kit- $2.99/month for 1MB (thousands of messages) - No contracts, cancel anytime

$0.99/each additional MB

3G Global and 3G Americas/Aus versions also available.

*Data rates vary by country and by data usage, see here for full pricing and bulk discounts.

** Continent compatibility is simplified and exceptions exist. Please be sure to check the full list of compatible countries for the location in which your product will be deployed.

The new and improved Programmer Shield is essentially a USB-JTAG converter that gives advanced users complete access to the Photon's memory space. It supports openOCD and the WICED SDK, and is built around the FT2232H high speed USB FIFO.

Unlike the previous Programmer Shield, it is fully standalone and requires no third-party programmers.

In addition to providing a JTAG interface, this shield can also act as a USB to Serial converter. You can also use this shield as a generic JTAG programmer for your other projects!

Designed for use with the Photon, backwards compatible with the Core.

The Particle Power Shield is the best way to—you guessed it—provide power to your mobile Particle projects. Based around the MCP73871 battery management controller, this shield allows you to simultaneously power a Photon and charge a connected Li-Ion or Li-Po battery. You'll also be able to monitor battery levels using the Photon itself, which makes the Power Shield the best way to untether your wireless project.

Besides the on-board USB port, you can also use an external DC power supply or solar-cell to charge the battery.

This shield ships with a 3.7V, 2000mAh Li-Po battery and headers. Plug & Play - No soldering required!

Designed for use with the Photon, backwards compatible with the Core.

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 sketches included with the SmartMatrix Library will get you started quickly displaying graphics, patterns, or even animated GIFs from a microSD card on your panel.

Features

Shield is fully assembled, no soldering required (besides adding pins to the Teensy)

HUB75 pinout, connects to panel directly or using panel's ribbon cable

5V level shifters for better compatibility with 5V panels

Support for driving Dotstar/APA102 LEDs in parallel with the LED panel, connects directly to 4-pin JST SM cable on Dotstar LEDs, or use the included cable

Expansion rows for main Teensy pins, making signals available for prototyping

Teensy is easily removed from the shield

Note: compared to previous versions of the SmartMatrix Shield, the microSD card slot was removed, as it is redundant when combined with the Teensy 3.5/3.6

The shield brings the 13 I/O signals needed to drive the panel out to a connector that matches the pinout on the panel, and brings the rest of the I/O signals out to convenient expansion headers.  The board includes pre-soldered 5V level shifters.

It's a great board for easily expanding your Teensy's capabilities. You'll also need to program in your Teensy with the SmartMatrix code available on the project website.

Do you make time to talk to your Arduino? Maybe you should! The EasyVR Shield 3.0 is a voice recognition shield for Arduino boards integrating an EasyVR module. It includes all of the features of the EasyVR module in a shield form factor that simplifies connection to the Arduino main board and PC.

EasyVR 3.0 is a multi-purpose speech recognition module designed to add versatile, robust and cost effective speech and voice recognition capabilities to virtually any application. EasyVR is the third generation version of the successful VRbot module and builds on the features and functionality of its predecessor. In addition to the EasyVR 3.0 features like up to 32 user-defined Speaker Dependent (SD) commands and 26 built-in speaker independent (SI) commands for ready to run basic controls, the shield has an additional audio line-out/headphone jack, and access to the I/O pins of the EasyVR module.

Note: Unlike V2.0, the EasyVR Shield 3.0 does not come preassembled and will require some soldering and assebly before operation.

Features

A selection of 26 built-in Speaker Independent (SI) commands (available in US English, Italian, Japanese, German, Spanish, and French) for ready to run basic controls.

Supports up to 32 user-defined Speaker Dependent (SD) triggers or commands (any language) as well as Voice Passwords.

With the optional Quick T2SI Lite license you can add up to 28 Speaker Independent (SI) Vocabularies, each one with up to 12 SI different commands. Therefore an overall number of up to 336 additional SI commands!

SonicNet to control one or more EasyVR 3.0s wirelesly with sound tokens generated by the module or other sound source

DTMF tone generation

Easy-to-use and simple Graphical User Interface to program Voice Commands to your robot.

Compatible with Arduino boards that have the 1.0 Shield interface (UNO R3) and legacy boards including:

Arduino Duemilanove

Arduino Uno

Arduino Mega

Arduino Leonardo

Arduino Due

Arduino Duemilanove

Arduino Uno

Arduino Mega

Arduino Leonardo

Arduino Due

Module can be used with any host with an UART interface (powered at 3.3V - 5V).

Supports direct connection to the PC on main boards with a separate USB/Serial chip and a special software-driven “bridge” mode on boards with only native USB interface, for easy access by the EasyVR Commander.

Simple and robust serial protocol to access and program the module through the host board.

Make your own sound tables using Sensory QuickSynthesis4 tool.

Supports remapping of serial pins used by the Shield (in SW mode).

The new EasyVR GUI includes a command to process and download custom sound tables to the module (overwriting existing sound table)

Provides a 3.5mm audio output jack suitable for headphones or as a line out

8 ohm speaker output

Access to EasyVR I/O pins

LED to show feedback during recognition tasks

Live message recording and Fast SD/SV recognition

Arduino Libraries provided

The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer. Powered by the Intel® Atom™ SoC dual-core CPU and including an integrated WiFi, Bluetooth LE, and a 70-pin connector to attach a veritable slew of shield-like “Blocks” which can be stacked on top of each other. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics!

The GPIO Block is a simple breakout board to bring the GPIO from the Intel® Edison to the user. Bread board friendly, the GPIO Block provides access to all basic GPIO, PWM, and UART2 pins. All GPIO is level shifted to a selectable 3.3v or VSYS. The GPIO add-on also provides access to all three power rails found on the Intel® Edison. 3.3v, 1.8v, VSYS, and GND are accessible for bread board prototyping. Note: Since the level shifting is accomplished through a auto direction sensing translator, driving high current components (Such as Relays, Motors, and high power LED’s) will require an external switch. See the Hookup Guide to learn more.

If you are looking to add a little more stability to your Intel® Edison stack, check out this Hardware Pack. It will provide you with increased mechanical strength for stacking Blocks on your Edison!

The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer. Powered by the Intel® Atom™ SoC dual-core CPU and including an integrated WiFi, Bluetooth LE, and a 70-pin connector to attach a veritable slew of shield-like “Blocks” which can be stacked on top of each other. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics!

The Base Block serves as add-on for the Intel® Edison by allowing you to attach different peripherals like a key board, mouse, or thumb drive. Basically anything that can plug into a USB can now connect to your Edison! Equipped with a micro AB USB backed by USB OTG and FT231X respectively, you should have no issues attaching external hardware to your Edison.

If you are looking to add a little more stability to your Intel® Edison stack, check out this Hardware Pack. It will provide you with increased mechanical strength for stacking Blocks on your Edison!

The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer. Powered by the Intel® Atom™ SoC dual-core CPU and including an integrated WiFi, Bluetooth LE, and a 70-pin connector to attach a veritable slew of shield-like “Blocks” which can be stacked on top of each other. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics!

The 9 Degrees of Freedom Block for the Intel® Edison uses the LSM9DS0 9DOF IMU for full-range motion sensing. This chip combines a 3-axis accelerometer, a 3-axis gyroscope, and a 3-axis magnetometer. By default, the IMU is connected to the Edison through the I2C bus. Each sensor in the LSM9DS0 supports a wide range of, well, ranges: the accelerometer’s scale can be set to ± 2, 4, 6, 8, or 16 g, the gyroscope supports ± 245, 500, and 2000 °/s, and the magnetometer has full-scale ranges of ± 2, 4, 8, or 12 gauss. Additionally, the LSM9DS0 includes an I2C serial bus interface supporting standard and fast mode (100 kHz and 400 kHz) and an SPI serial standard interface.

If you are looking to add a little more stability to your Intel® Edison stack, check out this Hardware Pack. It will provide you with increased mechanical strength for stacking Blocks on your Edison!

Note: We are currently working on a Hookup Guide for this kit. Check back later for more updates.

Note: While there are jumpers for SPI, it is not supported.

The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer. Powered by the Intel® Atom™ SoC dual-core CPU and including an integrated WiFi, Bluetooth LE, and a 70-pin connector to attach a veritable slew of shield-like “Blocks” which can be stacked on top of each other. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics!

This Block adds ADC functionality to the Edison’s I2C bus. The ADS1015 ADC from TI provides a single 12-bit delta-sigma convertor with an analog multiplexer. It can be configured as a four-channel single-ended device or as a two-channel differential device.

The ADC Block has jumpers to allow selection of the I2C slave address among four different options, allowing up to four of these cards to be stacked under one Edison. The sampling rate is not sufficient for audio capture, at 2.2kHz, but it should be adequate for most control applications.

If you are looking to add a little more stability to your Intel® Edison stack, check out this Hardware Pack. It will provide you with increased mechanical strength for stacking Blocks on your Edison!

The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer. Powered by the Intel® Atom™ SoC dual-core CPU and including an integrated WiFi, Bluetooth LE, and a 70-pin connector to attach a veritable slew of shield-like “Blocks” which can be stacked on top of each other. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics!

Since the Edison offers a large number of GPIO and communication bus pins, these pins can be mapped to the exact same footprint as the Raspberry Pi B’s GPIO header. The Pi Block lets you use your existing Raspberry Pi B peripherals and expansion boards with your Edison while still providing level-shifted access to basic GPIO, PWM, UART, I2C, and SPI communication! This block combines the functionality of the GPIO Block and I2C Block with additional features to streamline development.

The Intel® Edison is an ultra small computing platform that will change the way you look at embedded electronics. Each Edison is packed with a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single board computer. Powered by the Intel® Atom™ SoC dual-core CPU and including an integrated WiFi, Bluetooth LE, and a 70-pin connector to attach a veritable slew of shield-like “Blocks” which can be stacked on top of each other. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics!

This I2C Block simply breaks out an I2C bus on the Intel® Edison while level shifting it from 1.8V to your sensors voltage. This a simple board that can snap into your Edison and be used right away.

If you are looking to add a little more stability to your Intel® Edison stack, check out this Hardware Pack. It will provide you with increased mechanical strength for stacking Blocks on your Edison!

The SparkFun MP3 Player Shield is an awesome MP3 decoder with the capabilities of storing music files onto a run-of-the-mill microSD card, thus giving you the ability toadd music or sound effects to any project. With this board you can pull MP3 files from an microSD card and play them using only one shield, effectively turning any Arduino into a fully functional stand-alone MP3 player! The MP3 Shield utilizes the VS1053B MP3 audio decoder IC to decode audio files. The VS1053 is also capable of decoding Ogg Vorbis/MP3/AAC/WMA/MIDI audio and encoding IMA ADPCM and user-loadable Ogg Vorbis.

The VS1053 receives its input bitstream through a serial input bus (SPI). After the stream has been decoded by the IC, the audio is sent out to both a 3.5mm stereo headphone jack, as well as a 2-pin 0.1" pitch header.

This shield comes populated with all components as shown in the images and schematic; but it does not come with headers installed. We recommend the Arduino R3 Stackable Header Kit.

Features

3.5mm audio out jack

0.1" spaced header for speaker out

microSD card slot

The SparkFun MIDI Shield board gives your Arduino-based device access to the antiquated, but still widely used and well supported MIDI communication protocol, so you can control synthesizers, sequencers, and other musical devices. The MIDI protocol shares many similarities with standard asynchronous serial interfaces, so you can use the UART pins of your Arduino to send and receive MIDI’s event messages.

The SparkFun MIDI Shield provides an opto-isolated MIDI-IN port as well as a MIDI-OUT port. The MIDI Shield can be mounted directly on top of an Arduino, connecting the MIDI-IN to the Arduino’s hardware RX pin and the MIDI-OUT to TX. Potentiometers are connected to analog pins 1 and 2, and can be used to control volume, pitch, tone or anything else you’d like. The shield also comes with three momentary push buttons, a reset button, and green and red stat LEDs. The RUN/PROG switch allows you to program the Arduino over serial without having to remove the shield.

This revision of the SparkFun MIDI Shield also adds several configurable features, such as converting the MIDI output to a MIDI thru, and the option to use a software serial port for MIDI, leaving the hardware serial for programming and debugging. It also buffers the output, making it compatible with the Arduino Pro without needing to circumvent the protection resistors on the serial TX and RX lines.

Note: The MIDI Shield does not come with all parts soldered on. Two MIDI connectors, two trimpots, and three pushbuttons are included with the product and will need to be attached by the end user.

Includes

SparkFun MIDI Shield PCB

2x 5-pin DIN conectors

2x 10K rotary potentiometer

3x 12mm tactile pushbutton switches