Sparkfun

Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until...

Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until they turn clear and then kneading them together and shaping by hand. When it cools it becomes a nylon-like white plastic. Polymorph can be re-used by simply re-heating and re-shaping. Plastic beads are supplied in a re-usable plastic container. So what do you do with it? Robotics, small-parts...

This DC power jack/connector is just like the other one that we carry except that it's terminated with breadboard-friendly pins instead of wide solder terminals. These are also compatible with our...

This DC power jack/connector is just like the other one that we carry except that it's terminated with breadboard-friendly pins instead of wide solder terminals. These are also compatible with our DC wall supplies and have a 5.5mm jack, with a 2.1mm center pole diameter. Documents: Dimensional Drawing

It's not the heat but the humidity that gets you, at least that's what they say. Really, both are important, what you need is a sensor that combines humidity and temperature readings. How about this...

It's not the heat but the humidity that gets you, at least that's what they say. Really, both are important, what you need is a sensor that combines humidity and temperature readings. How about this Honeywell HumidIcon Digital Humidity/Temperature Sensor? The HIH6130 is a digital output-type relative humidity (RH) and temperature sensor combined in the same package. This allows the RH measurement to be temperature compensated and provides a second, standalone temperature sensor output. This...

This low-cost (LC) Teensy Prop Shield is meant for making light and sound effects on small, handheld props and wearable costumes. This shield features a 2W audio amp, high-speed 5V buffers for...

This low-cost (LC) Teensy Prop Shield is meant for making light and sound effects on small, handheld props and wearable costumes. This shield features a 2W audio amp, high-speed 5V buffers for driving APA102 LEDs, and an 8MB flash memory. This economical board is approximately the size of a Teensy, just slightly longer to allow space for mounting holes and connections for power, speaker and LEDs. This lower-cost Prop Shield is identical to the standard Prop Shield, except the motion sensors...

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straightforward to use. The two large, exposed...

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straightforward to use. The two large, exposed pads function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be, resulting in a lower resistance and a higher SIG out. This version of the Soil Moisture Sensor includes a 3-pin screw pin...

The SparkFun Inventor's Kit (SIK) is a great way to get started with programming and hardware interaction with the Arduino programming language. The SIK includes everything you need to complete five...

The SparkFun Inventor's Kit (SIK) is a great way to get started with programming and hardware interaction with the Arduino programming language. The SIK includes everything you need to complete five overarching projects consisting of 16 interconnected circuits that teach everything from blinking an LED to reading sensors. The culminating project is your very own autonomous robot! No previous programming or electronics experience is required to use this kit. The full-color, spiral-bound SIK...

A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects. Features: Small Size Power rating: 0.5W Impedance: 8Ω 50mm diameter, 16mm high,...

A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects. Features: Small Size Power rating: 0.5W Impedance: 8Ω 50mm diameter, 16mm high, 28mm base diameter

These panel-mounting rocker switches have built-in indicator lights to let you know when your switch is engaged. They mount into a 20.2mm diameter hole and are rated up to 16A @ 12v. These simple...

These panel-mounting rocker switches have built-in indicator lights to let you know when your switch is engaged. They mount into a 20.2mm diameter hole and are rated up to 16A @ 12v. These simple SPST on-off switches have three terminals, the two that you would normally see plus a ground tab for the blue LED lamp inside. Although these are rated for 12v, the LED works with as little as 5V. Features: Blue LED Indicator SPST on-off Rated up to 16A @ 12v 20.2mm Diameter Mounting Hole Videos ...

This is a breakout board for the Texas Instruments TXB0104 module. The TXB0104 is a 4-bit bidirectional voltage-level translator with automatic direction sensing. This 4-bit noninverting translator...

This is a breakout board for the Texas Instruments TXB0104 module. The TXB0104 is a 4-bit bidirectional voltage-level translator with automatic direction sensing. This 4-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation...

The SparkFun Weather Shield is an easy-to-use Arduino shield that grants you access to barometric pressure, relative humidity, luminosity and temperature. There are also connections on this shield...

The SparkFun Weather Shield is an easy-to-use Arduino shield that grants you access to barometric pressure, relative humidity, luminosity and temperature. There are also connections on this shield to optional sensors such as wind speed, direction, rain gauge and GPS for location and super accurate timing. The Weather Shield utilizes the Si7021 humidity/temperature sensor, the MPL3115A2 barometric pressure sensor and the ALS-PT19 light sensor. The shield relies on the Si7021 and MPL3115A2...

This is a 10-pin socket with 2mm pitch that mates with the popular XBee radio from Digi. Use this small part to avoid having to solder your precious radio to a PCB. You'll need two of these sockets...

This is a 10-pin socket with 2mm pitch that mates with the popular XBee radio from Digi. Use this small part to avoid having to solder your precious radio to a PCB. You'll need two of these sockets to connect to all 20 pins on the XBee. These headers can also be cut to work with the RFID breakout board. Please Note: This item is sold singly, not in pairs. Documents: Datasheet ...

This shield allows you to use a computer power supply (or other power source) to use your Arduino to switch high current. With RFP30N06LE MOSFETS, you can easily control a lot of current directly...

This shield allows you to use a computer power supply (or other power source) to use your Arduino to switch high current. With RFP30N06LE MOSFETS, you can easily control a lot of current directly from your Arduino. The board provides 6 PWM outputs via screw terminals. Check the datasheet for the MOSFET below for full specifications on how much current this board can handle.This board is a very easy way to start using MOSFETS for your next high current project. A protection diode has been added...

This blue Mini Breadboard is a great way to prototype your small projects! With 170 tie points there's just enough room to build and test simple circuits; They're also great for breaking out DIP...

This blue Mini Breadboard is a great way to prototype your small projects! With 170 tie points there's just enough room to build and test simple circuits; They're also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board. It has a peel and stick adhesive backing as well as two mounting holes for M2 screws so you can anchor it down. Note: These will not connect securely with...

The SparkFun TeensyView brings you an easy way to add a small, white-on-black OLED to your Teensy development board. The 128x32 monochrome display is controlled with the popular SSD1306 IC, and is a...

The SparkFun TeensyView brings you an easy way to add a small, white-on-black OLED to your Teensy development board. The 128x32 monochrome display is controlled with the popular SSD1306 IC, and is a great way to display debug information and to visualize data without the need for a serial terminal. The board matches the Teensy 3 form factor perfectly, and was designed from the ground up to be as flexible as possible while still being able to nest down into a low-profile addition for the...

The TB6612FNG Motor Driver can control up to two DC motors at a constant current of 1.2A (3.2A peak). Two input signals (IN1 and IN2) can be used to control the motor in one of four function modes:...

The TB6612FNG Motor Driver can control up to two DC motors at a constant current of 1.2A (3.2A peak). Two input signals (IN1 and IN2) can be used to control the motor in one of four function modes: CW, CCW, short-brake and stop. The two motor outputs (A and B) can be separately controlled, and the speed of each motor is controlled via a PWM input signal with a frequency up to 100kHz. The STBY pin should be pulled high to take the motor out of standby mode. Due to popular demand, this version...

These are simple 2-position screw terminals with 2.54mm pitch pins. Rated up to 150V @ 6A, this terminal can accept 30 to 18AWG wire. The 2.54mm pitch will line up with standard 0.1" perf boards....

These are simple 2-position screw terminals with 2.54mm pitch pins. Rated up to 150V @ 6A, this terminal can accept 30 to 18AWG wire. The 2.54mm pitch will line up with standard 0.1" perf boards. Documents: Datasheet

There are a couple must-have boards that every engineer and hobbyist should have on their desk, and this PCA9306 dual, bidirectional voltage-level translator breakout is one of them! Because...

There are a couple must-have boards that every engineer and hobbyist should have on their desk, and this PCA9306 dual, bidirectional voltage-level translator breakout is one of them! Because different parts sometimes use different voltage levels to communicate, voltage level translators can be the key to making different parts play nice. The PCA9306 is a dual bidirectional I2C-bus and SMBus voltage-level translator that's operational on the low side from 1.2V to 3.3V and on the high side from...

We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of 25 LEDs all conveniently packaged in a nice reusable ESD safe bag. Make that next project...

We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of 25 LEDs all conveniently packaged in a nice reusable ESD safe bag. Make that next project shine! Features: 25 super bright red LEDs 9,000mcd brightness Standard size - T1 3/4 5mm 2.4V forward drop Max current 20mA Documents: Info Sheet Datasheet LED Tutorial ...

Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together...

Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is backed by a conductive adhesive, is 5mm wide and comes in rolls of 50 feet. Perfect for more precise projects. Documents: Datasheet [MSDS](https://cdn.sparkfun.com/datasheets/Prototyping/Copper foil tape MSDS-EN.pdf) ...

The LilyPad Arduino 328 Main Board is an Arduino-programmed microcontroller designed to be easily integrated into e-textiles and wearable projects. It offers the same functionality you find in other...

The LilyPad Arduino 328 Main Board is an Arduino-programmed microcontroller designed to be easily integrated into e-textiles and wearable projects. It offers the same functionality you find in other Arduino boards, in a lightweight, round package designed to minimize snagging and profile, with wide tabs that can be sewn down and connected with conductive thread. The LilyPad Arduino consists of an ATmega328 with the Arduino bootloader and a minimum number of external components to keep it as...

The SparkFun Extended Qwiic Shield for Teensy provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Teensy boards. This shield is sized to work with the footprint...

The SparkFun Extended Qwiic Shield for Teensy provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Teensy boards. This shield is sized to work with the footprint of Teensy 4.1, Teensy 3.6, and Teensy 3.5. This shield connects the I2C bus (GND, 3.3V, SDA, and SCL) on your Teensy to four SparkFun Qwiic connectors (two horizontally and two vertically mounted). The Qwiic ecosystem allows for easy daisy chaining so, as long as your devices are on different...

This is a heavy duty SPST toggle switch - your basic on/off toggle. Rated for 2A at 250V or 4A at 125V. Includes a face plate and two threaded nuts for mounting. Works great with our missile switch...

This is a heavy duty SPST toggle switch - your basic on/off toggle. Rated for 2A at 250V or 4A at 125V. Includes a face plate and two threaded nuts for mounting. Works great with our missile switch cover. Features: 0.5 x 0.55 x 1.45" Documents: Dimensional Drawing

Transceiver nRF2401A Module Trace AntennaDescription: Miniature RF (MiRF) 2.4GHz transceiver modules with built in antenna designed around the Nordic Semiconductor nRF2401A with high sensitivity and...

Transceiver nRF2401A Module Trace AntennaDescription: Miniature RF (MiRF) 2.4GHz transceiver modules with built in antenna designed around the Nordic Semiconductor nRF2401A with high sensitivity and good range. These units are a SparkFun exclusive; small in stature, big on performance, all wrapped up in a user friendly package. Units come with an empty 0.1" spaced footprint ready for a straight header, right angle header (recommended), or your own wires/umbilical cable.The...

These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables come in red/black pairs. Features: 36" long ...

These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables come in red/black pairs. Features: 36" long

Open Logic Sniffer - Probe Cable Kit Description: This is the probe cable for Open workbench Logic sniffer. It has a 1×9 connector and 9 leads with tweezer-style test clips. Each cable...

Open Logic Sniffer - Probe Cable Kit Description: This is the probe cable for Open workbench Logic sniffer. It has a 1×9 connector and 9 leads with tweezer-style test clips. Each cable connects 8 of the 16 buffered input channels, plus ground.

This is a 8-pin female header, with extra long legs -- great for stacking Arduino shields. Pins are spaced by 0.1". Documents: Datasheet ...

This is a 8-pin female header, with extra long legs -- great for stacking Arduino shields. Pins are spaced by 0.1". Documents: Datasheet

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It's the next...

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It's the next version of the popular Easy Driver board. Each Big Easy Driver can drive up to a max of 2A per phase of a bi-polar stepper motor. It is a chopper microstepping driver which defaults to 16 step microstepping mode. It can take a maximum motor drive voltage of around 30V, and includes on-board 5V/3.3V...

The MyoWare® 2.0 Reference Cable is meant as an extension for the MyoWare 2.0 Muscle Sensor's reference pin. You will just need to insert the pin into its housing and place a biomedical sensor pad...

The MyoWare® 2.0 Reference Cable is meant as an extension for the MyoWare 2.0 Muscle Sensor's reference pin. You will just need to insert the pin into its housing and place a biomedical sensor pad into the electrode snap. When ready, stick the reference cable's snap pin to a separate section of the body such as a bony portion of the elbow or a nonadjacent muscle near a targeted muscle where the MyoWare 2.0 Muscle Sensor's built-in reference pin is unable to reach. Note: The reference electrode...

Serial Connector - Ribbon Cable (Female, 9-pin) Description: DB9 connectors are a great way to make a tight connection on your project or to plug into existing serial lines. Now you can make...

Serial Connector - Ribbon Cable (Female, 9-pin) Description: DB9 connectors are a great way to make a tight connection on your project or to plug into existing serial lines. Now you can make your own DB9 cables the easy way with these crimp-on ribbon cable connectors. These work great with our 10-wire ribbon cable, you just need to peel back the one unneeded wire. Matching male connectors are available and can be found in the related items below. Includes: Male DB9 connector body Rear...

These headers are made to work with the Arduino Main Board, Arduino Pro, and the Arduino Mega. They are the perfect height for clearing the USB-B connector and great for stacking multiple shields....

These headers are made to work with the Arduino Main Board, Arduino Pro, and the Arduino Mega. They are the perfect height for clearing the USB-B connector and great for stacking multiple shields. This kit includes 4 headers (2 8-pin and 2 6-pin), enough to connect a shield to an Arduino Main Board. These are the same headers we use in our tutorials and with our own shields. Note: If you have a board that uses the Arduino R3 architecture which include the OREF, SCL, and SDA pins they can be...

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral...

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for a pack of 20 individual crimp pins. We regularly use a pair of needle nose pliers and a soldering iron to attach these pins. No special tools required. Be sure to order the mating header and housing! Get Started with the How to Crimp an Electrical Connector Hookup Guide...

We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of basic red, yellow, blue and green 5mm LEDs (5 of each) all conveniently packaged in a nice...

We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of basic red, yellow, blue and green 5mm LEDs (5 of each) all conveniently packaged in a nice reusable ESD safe bag. Includes: 5x - Basic Red 5x - Basic Yellow 5x - Basic Blue 5x - Basic Green Documents: Info Sheet LED Tutorial All About LEDs ...

Metal short standoffs: 3/8" long x 1/4"OD. Used to get your proto board up off the table. #4-40 thread. Fits all development boards with available holes. Don't forget the screws! Related below. Set...

Metal short standoffs: 3/8" long x 1/4"OD. Used to get your proto board up off the table. #4-40 thread. Fits all development boards with available holes. Don't forget the screws! Related below. Set of ten

These are good quality IC test hooks with a male connection wire. Instead of a single hook, these have two hooks that are capable of grabbing very small points (like SOIC IC legs). Comes in a bag of...

These are good quality IC test hooks with a male connection wire. Instead of a single hook, these have two hooks that are capable of grabbing very small points (like SOIC IC legs). Comes in a bag of five IC hooks of different colors (black, red, white, blue, and green). We use them with the Bus Pirate logic analyzer harnesses but are very cool on their own. Wire length is 2.5" long. Male pin easily inserts into breadboard or other standard 0.1" connector.

This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This chip is like a rotary switch - it internally routes the common pin (COM in the...

This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This chip is like a rotary switch - it internally routes the common pin (COM in the schematic, SIG on the board) to one of 16 channel pins (CHANxx). It works with both digital and analog signals (the voltage can't be higher than VCC), and the connections function in either direction. To control it, connect 4 digital outputs to the chip's address select pins (S0-S3), and send it the...

The TLC5940 is a 16 channel PWM unit with 12 bit duty cycle control (0-4095), 6 bit current limit control (0-63), and a daisy chainable serial interface. This breakout board is a good way to take...

The TLC5940 is a 16 channel PWM unit with 12 bit duty cycle control (0-4095), 6 bit current limit control (0-63), and a daisy chainable serial interface. This breakout board is a good way to take full advantage of this useful IC. All 16 PWM channels are broken out to standard 0.1" headers, which run alongside convenient voltage and ground rails. Also, because the TLC5940 can be daisy-chained, the breakout is designed to support that feature. On the left-hand side of the board all serial inputs...

What should every hacker have available to them? That's right, a screwdriver (you have to get into those cases somehow). What makes screwdrivers even better is when there are a variety of...

What should every hacker have available to them? That's right, a screwdriver (you have to get into those cases somehow). What makes screwdrivers even better is when there are a variety of interchangeable bits to use in different situations as you need them. This Pocket Screwdriver Set provides you with just that service in a small, portable package. Each Pocket Screwdriver Set offers 7 different chrome vanadium bits, four flathead options and three Phillips head options, that fit snuggly in...

This is a simple pack of five White LilyPad LEDs that are still attached to one another, letting you snap the LEDs apart at your leisure to sew into clothing or whatever else you can dream up....

This is a simple pack of five White LilyPad LEDs that are still attached to one another, letting you snap the LEDs apart at your leisure to sew into clothing or whatever else you can dream up. LilyPad is a wearable e-textile technology developed by Dr. Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad piece was creatively designed with large sew tabs to allow them to be sewn into fabric. Various input, output, power and sensor boards are available. They're even...

Standard 22 AWG solid Yellow hook up wire. Use this with your bread board or any project in which you need sturdy wire. Comes in small spools of 25'.

Standard 22 AWG solid Yellow hook up wire. Use this with your bread board or any project in which you need sturdy wire. Comes in small spools of 25'.

These are nice, cross-locking, straight tweezers, unlike traditional models the tips on these tweezers will remain closed until squeezed open. They have a very fine tip which allows you to pick up...

These are nice, cross-locking, straight tweezers, unlike traditional models the tips on these tweezers will remain closed until squeezed open. They have a very fine tip which allows you to pick up very small parts with precision. This is a great tool to have if you're working with surface mount components or anything with very small parts. The ESD-safe coating will also help prevent electro-static damage to sensitive electronic components. Documents: Product Video ...

1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 1.0M resistors make excellent pull-ups, pull-downs, and current limiters. Note: Although these come in...

1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 1.0M resistors make excellent pull-ups, pull-downs, and current limiters. Note: Although these come in bags marked with a quantity of 25, they don't always contain 25. So we'd rather call it 20 and hope that you get extras. Documents: Breadboard Lecture Sensor Interfacing Voltage Dividers ...

The SparkFun Inventor’s Kit for RedBot is a great way to get started with two motor robotics and sensor integration using the Arduino programming language. The SIK for RedBot includes everything you...

The SparkFun Inventor’s Kit for RedBot is a great way to get started with two motor robotics and sensor integration using the Arduino programming language. The SIK for RedBot includes everything you need to complete nine circuits that will teach you how to drive your RedBot, have it follow lines, control it remotely, and more. This kit doesn't require previous programming or electronics experience but it is recommended that you possess an understanding of or desire to learn about robotics. The...

"The MG2639 SparkFun Cellular Shield is a perfect addition to any Arduino project that requires connectivity when there’s no WiFi or Ethernet access nearby. The ZTE MG2639 module, which this...

"The MG2639 SparkFun Cellular Shield is a perfect addition to any Arduino project that requires connectivity when there’s no WiFi or Ethernet access nearby. The ZTE MG2639 module, which this shield is built around, supports SMS, TCP, UDP, and can even be used to make or receive phone calls! That means you can send and receive text messages, or use it to remotely connect your Arduino to the Internet. To top it off, it has an integrated GPS receiver, to help it from getting lost. All the...

Need range? 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. This antenna mates nicely with the Reverse Polarized...

Need range? 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. This antenna mates nicely with the Reverse Polarized SMA Connector. Features: 0.5x7.7" Documents: Datasheet

Here, for all your mechatronic needs, is a simple, high quality continuous rotation servo motor. This servo is able to take in 6 volts and deliver 30.6 oz-in. of maximum torque at 0.14 sec/60° A...

Here, for all your mechatronic needs, is a simple, high quality continuous rotation servo motor. This servo is able to take in 6 volts and deliver 30.6 oz-in. of maximum torque at 0.14 sec/60° A standard 3-pin power and control cable is attached and all hardware listed below is included. Includes: 1x SM-S3317S Full Rotation Servo 1x Single Arm Horn 1x Double Arm Horn 1x Four Point Horn 4x Rubber Grommets 4x 2x15mm Phillips Screw 4x Brass Eyelets Features: Voltage: 4.8-6.0 Volts Torque:...

"The Arduino Industrial 101 is a WiFi evaluation board for the Arduino 101 LGA module based on a MIPS Linux processor. With the Industrial 101 you will possess a fantastic addition to the Arduino...

"The Arduino Industrial 101 is a WiFi evaluation board for the Arduino 101 LGA module based on a MIPS Linux processor. With the Industrial 101 you will possess a fantastic addition to the Arduino family and be able to easily create IoT projects without the need for multiple shields. Similar to the Arduino Yun (in a small form-factor), the Industrial 101 integrates an ATmega32U4 and the Atheros AR9331 SoC to make a dependable evaluation resource! The onboard ATmega32u4 microcontroller has been...

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil is rated up to 12V, with a minimum switching...

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil is rated up to 12V, with a minimum switching voltage of 5V. The contacts are rated up to 5A (@250VAC, 30VDC). Note: In the Datasheet below there is a pin layout listed as "Bottom View." Be aware, this pin layout is actually the top-down view NOT bottom-up. Features: 5V DC SPDT Relay Rated up to 5A Fully Sealed Documents: Datasheet ...

Uh-oh Battery Level Indicator Kit Description: Under-powering a digital device can sometimes have pretty nasty consequences. Brown-out conditions can cause memory to get written or overwritten in...

Uh-oh Battery Level Indicator Kit Description: Under-powering a digital device can sometimes have pretty nasty consequences. Brown-out conditions can cause memory to get written or overwritten in odd ways, can cause unexpected behavior in connected systems and just generally screw up your day. One way to avoid this is to keep an eye on your battery voltage and turn off the system before it gets too low (or plug it in). We've whipped up a little board to help you out with this...

This is a simple 3 pin female PTH header. This header is in a configuration that makes it ideal to be used with the MyoWare Muscle Sensor line. Each pin has a spacing of 0.1" in between each other....

This is a simple 3 pin female PTH header. This header is in a configuration that makes it ideal to be used with the MyoWare Muscle Sensor line. Each pin has a spacing of 0.1" in between each other. Documents: Datasheet

These are a pair of hobby gearmotors from DAGU. These gearmotors are the same ones recommended for use in the Shadow Chassis and offer a cheap and easy-to-use setup to get your wheels turning. Each...

These are a pair of hobby gearmotors from DAGU. These gearmotors are the same ones recommended for use in the Shadow Chassis and offer a cheap and easy-to-use setup to get your wheels turning. Each Hobby Gearmotor also possess a 9mm long output on a straight axis. These gearmotors require a voltage of 4.5V with a no load current of 190mA while possessing a gearbox ratio of 48:1 and a wheel speed of 140 RPM unloaded. Every motor order is sold in packs of two. Note: The RPM listed in the...

This is a simple four wire cable. Great for jumping from board to board or just about anything else. There is a 4-pin JST RE connector on both ends. These are simple jumper wires used on standard...

This is a simple four wire cable. Great for jumping from board to board or just about anything else. There is a 4-pin JST RE connector on both ends. These are simple jumper wires used on standard 0.1" breakaway headers. Features: 4" length Documents: Drawing

"The SparkFun H2OhNo! is a water sensor alarm kit that you build yourself. When water is detected across the sense pins an alarm goes off and an LED starts blinking. If you’ve ever had a water...

"The SparkFun H2OhNo! is a water sensor alarm kit that you build yourself. When water is detected across the sense pins an alarm goes off and an LED starts blinking. If you’ve ever had a water heater explode or tried to create submersible electronics you know how important it is to be able to detect when water is around! Underneath the default function of H2OhNo! is a small but powerful development board for the ATtiny85 microcontroller. The board includes a buzzer, LED, a coin cell...

This is a 4 pack of wires that are pre-terminated with an alligator clip on one end and a hookup pigtail on the other. Alligator clips are a staple part for any workbench and with these cables you...

This is a 4 pack of wires that are pre-terminated with an alligator clip on one end and a hookup pigtail on the other. Alligator clips are a staple part for any workbench and with these cables you will be able to easily incorporate those clips into a breadboard, development platform, or anything else that you would normally be able to attach a hookup wire to. Each Alligator Clip with Pigtail cable has a wire length of 30cm (that's a little less than 1ft) and a male pin that easily inserts into...

Miniature surface mount momentary button. These are great, low-profile momentary switches. Perfect as a tactile reset switch. Rated up to 50mA. Documents: Dimensional Drawing ...

Miniature surface mount momentary button. These are great, low-profile momentary switches. Perfect as a tactile reset switch. Rated up to 50mA. Documents: Dimensional Drawing

The LilyTwinkle is a tiny little LilyPad board designed to add some twinkle to your project. Even though it's as small as some of the LilyPad sensors, this board actually has an ATtiny...

The LilyTwinkle is a tiny little LilyPad board designed to add some twinkle to your project. Even though it's as small as some of the LilyPad sensors, this board actually has an ATtiny microcontroller on it so it's actually pretty smart! Simply sew on 4 LEDs and connect a battery and the LEDs will twinkle-fade (a lot like fireflies... or lightning bugs, if that's what you call them). LilyTwinkle is a quick and easy way to add twinkling lights to a project without any programming or a bulky...

Humidity and Temperature Sensor - SHT15 BreakoutThis is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor is fully...

Humidity and Temperature Sensor - SHT15 BreakoutThis is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor is fully calibrated and offers high precision and excellent long-term stability at low cost. The digital CMOSens Technology integrates two sensors and readout circuitry on one single chip. These sensors are really impressive! Very sensitive and straight forward to use. Board comes assembled and tested with the...

"For a long time we’ve had small 7-segment displays and huge 7-segment displays, but now we finally have something in between. These 20mm 4-digit 7-segment displays are big enough to see from...

"For a long time we’ve had small 7-segment displays and huge 7-segment displays, but now we finally have something in between. These 20mm 4-digit 7-segment displays are big enough to see from a distance but not so big that you’d have trouble finding an enclosure for them. These common-cathode displays feature 4 x 7-segment digits and one decimal point per digit. The LEDs have a forward voltage of 2.3VDC and a max forward current of 30mA. Dimensions: 71.6 x 25.7mm Documents:...

These are 6" long jumper wires terminated as male to female. Use these to jumper from any male or female header on any board. Multiple jumpers can be connected next to one another on a 0.1" header....

These are 6" long jumper wires terminated as male to female. Use these to jumper from any male or female header on any board. Multiple jumpers can be connected next to one another on a 0.1" header. Comes in one pack of 20 jumpers (colors shown). Each group of jumpers are connected to each other and can either be pulled apart in any quantity (from 1-20, of course) or kept whole based on you needs. These jumper wires can be used for pretty much everything! They work great with breadboards,...

This is a low-cost, basic SOIC breakout boards. This custom PCB will interface a standard SOIC package IC to 0.1" headers, which are easier to work with and integrate well with breadboards. There is...

This is a low-cost, basic SOIC breakout boards. This custom PCB will interface a standard SOIC package IC to 0.1" headers, which are easier to work with and integrate well with breadboards. There is DIP-standard 0.6" spacing between the two rows of pins. 40 Pin break-away headers are perfect for use with these custom PCBs. Machine pin headers may be a better option for IC sockets. Features: 0.7x1.1" Documents: Schematic Eagle Files GitHub (Design Files) ...

Do you have some liquids that you need to move? This fluid pump will move 350 gallons per hour! The SEAFLO mini water pump has a heavy duty 12V, 1.5Amp motor and a tough thermoplastic body. It's...

Do you have some liquids that you need to move? This fluid pump will move 350 gallons per hour! The SEAFLO mini water pump has a heavy duty 12V, 1.5Amp motor and a tough thermoplastic body. It's totally submersible and water-cooled (but it won't burn out if run dry). Use this pump to make a fountain or waterfall, even water your plants! The 3/4" connection will accept a 19mm ID hose. It comes pre-terminated with heavy gauge unterminated 3ft long wire leads. Features: 12V operation 350 GPH 1.5A...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these standard connectors. These Female quick-disconnects are about ¼" wide and can be crimped onto 16-14 AWG wire. Mating connectors can be found in the related items. Documents: Datasheet " ...

The Solder Vacuum, a great (and sometimes under appreciated) little tool for solder rework. It allows you to pull the molten solder out of a connection or via with ease. To use it you simply depress...

The Solder Vacuum, a great (and sometimes under appreciated) little tool for solder rework. It allows you to pull the molten solder out of a connection or via with ease. To use it you simply depress the plunger, heat up your solder, place the nozzle over the solder you want to remove and finally just push the button. The piston pops up and the solder disappears! This solder vacuum has a black metal body with a hard plastic nozzle and buttons.

It's blue! It's thin! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. This is a 3.3V Arduino running the 8MHz bootloader. Arduino Pro Mini does not come with connectors...

It's blue! It's thin! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. This is a 3.3V Arduino running the 8MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Uno R3. It's a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage...

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 6mm (+/- 0.3mm) shaft. The knob slides onto the potentiometer and...

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 6mm (+/- 0.3mm) shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. The main body of these knobs is metal with a plastic insert. The outside is knurled for precise adjustment. Features: 14mm high 24mm diameter Documents: Dimensional Drawing ...