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$2.50  
4 pc(s)
This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive female barrel jack. If you have a power supply with a barrel jack and want to plug it into a breadboard, this might be the simple solution.

$0.50  
1 pc(s)
Screw Terminals with 3.5mm pitch pins. Comes in 2 or 3 positions and have the really cool feature of slide-locking together to form any size you need (4, 5, up to 20 without problems). Rated up to 125V @ 6A. Terminal can accept 30 to 20AWG wire. 3.5mm/138mil pin pitch will not fit standard...

$2.80  
13 pc(s)
These pins can be crimped on 22-28AWG wires and snapped into our crimp connector housings to create custom cables that are compatible with standard 0.1"-pitch headers and solderless breadboards. These female pins are sold in packs of 20.

$2.80  
6 pc(s)
These pins can be crimped on 22-28AWG wires and snapped into our crimp connector housings to create custom cables that are compatible with standard 0.1"-pitch headers and solderless breadboards. These male pins are sold in packs of 20.

$2.20  
13 pc(s)
These headers are made to work with the Arduino Uno R3 and new Arduino boards going forward. They are the perfect height for clearing the USB-B connector and great for stacking multiple shields. This kit includes 4 headers, enough to connect a R3 shield to an Arduino Uno R3....

$12.50 $13.95  
1 pc(s)
This is your basic spool of lead free solder with a water soluble resin core. 0.031" gauge and 100 grams. This is a good spool for more advanced users that should last 6-12 months depending on how often you solder. If you are just beginning to solder, we recommend you order the...

$5.90  
5 pc(s)
This is you basic tube of unleaded (Pb-free) solder with a 60/40 no clean, water soluble resin core. 0.031" gauge and 15 grams. Mix: 96.5% tin / 3.0% silver / 0.5% copper

$0.80  
6 pc(s)
This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you don't want the battery just hanging. It also has three mounting holes so you can attach it securely to your enclosure. It is terminated with a 150mm leads

$27.50 $55.00  
1 pc(s)
This is a simple breakout for the Roving Networks Bluetooth module. All pertinent pins are broken out and labeled. This new version's headers are unpopulated. Check below for appropriate headers. The module from Roving Networks is powerful, small, and very easy to use. This...

$0.90 $1.80  
75 pc(s)
This 9V Snap to 2.1mm Barrel Jack Adapter provides the ability to conveniently use a 9V battery to power many common boards and modules such as the popular Arduino and compatible microcontrollers. This plug is a common barrel type with an outside diameter of 5.5mm and an inside diameter of...

$0.50  
94 pc(s)
Classis 9V snap connectors with color-coded wire leads. Great for replacements or projects. Length: ~ 15cm

$2.90  
2 pc(s)
Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer. Documents: Datasheet...

$9.50  
1 pc(s)
This pan/tilt bracket consists of two brackets and all the hardware you need to attach them to make a pan/tilt mechanism using two servo motors. This pan/tilt bracket works with our small servo motor . Documents: Dimensional Drawing Assembly Guide

$6.80  
3 pc(s)
Mini Pliers. These are great little pliers! A must have for any hobbyist or electrical engineer. Crucial for inserting devices into bread boards and bending pins. 4" long.

$3.45  
15 pc(s)
HC-SR04 ultrasonic sensor provides a very low-cost and easy method of distance measurement. This sensor measures distance using sonar. An ultrasonic (well above human hearing) pulse is transmitted from the unit and distance-to-target is determined by measuring the time required for the...

$3.95  
3 pc(s)
This product is the second generation of the popular HC-SR04 Low Cost Ultrasonic Sensor. Unlike the first generation HC-SR04 that can only operate between 4.8V to 5V DC, this new version has much wider input voltage range, allow it to work with controller operates on 3.3V. HC-SR04...

$58.50  
2 pc(s)
Parallax's PING)))™ ultrasonic sensor provides a very low-cost and easy method of distance measurement. This sensor is perfect for any number of applications that require you to perform measurements between moving or stationary objects. Naturally, robotics applications are very popular but...

$2.20 $3.20  
12 pc(s)
This basic tilt switch can easily be used to detect orientation. Inside the can are a pair of balls that make contact with the pins when the case is upright. Tilt the case over and the balls don't touch, thus not making a connection. There are numerous uses for these basic sensors,...

$0.95  
2 pc(s)
These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. All lenses are clear. Features: Standard size - T1 3/4 5mm 6,000mcd brightness 3.2V forward drop Forward current 20mA Documents:...

$0.95  
127 pc(s)
These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. All lenses are clear. Features: Standard size - T1 3/4 5mm 7,000mcd brightness 2.0V forward drop Forward current 20mA Documents:...

$0.95  
51 pc(s)
These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. All lenses are clear. Features: Standard size - T1 3/4 5mm 18,000mcd brightness 3.2V forward drop Forward current 20mA Documents:...

$0.95  
54 pc(s)
These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. All lenses are clear. Features: Standard size - T1 3/4 5mm 22,000mcd brightness 3.2V forward drop Forward current 20mA View angle 15 Deg...

$0.95  
6 pc(s)
These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. All lenses are clear. Features: Standard size - T1 3/4 5mm 8,000mcd brightness 2.0V forward drop Forward current 20mA Documents:...

$14.95  
8 pc(s)
The  GP2Y0D805  and  GP2Y0D810  are Sharp’s smallest and fastest distance sensors. With a sample rate of almost 400 Hz and a sensing distance to 5 cm or 10 cm, respectively, these sensors provides attractive alternatives to shorter-range ...

$3.00  
33 pc(s)
Use this simple IR receiver for infrared remote control of your next project. With low power consumption and an easy to use package, it mates well with embedded electronics and can be used with common IR remotes. The TSOP38238 is a miniaturized receiver for infrared remote control...

$0.70  
49 pc(s)
1/4 Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 330Ohm resistors make excellent LED current limiters and are great for general use.

$0.70  
46 pc(s)
1k Ohm, 1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards.

$0.70  
46 pc(s)
1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 10K resistors make excellent pull-ups, pull-downs, and current limiters.

$1.00 $2.00  
1218 pc(s)
A row of right angle headers - break to fit. 40 pins that can be cut to any size. Used with custom PCBs or general custom headers.

$0.95 $1.35  
587 pc(s)
There are lots of potentiometer out there. Some are very large, some so small they require a screwdriver. This 10K potentiometer has a small knob built right in and it's breadboard friendly to boot! Perfect for your next LCD contrast adjuster, opamp setting, or volume level. This model # is...

$23.95 $26.85  
3 pc(s)
This is a basic breakout board for the FTDI FT232RL USB to serial IC. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 3.3V Arduino boards. It can also be used for general serial applications. The major difference with this board is that it brings out...

$12.80 $16.00  
1 pc(s)
This tiny breakout board features the ADMP401 MEMs microphone. One of the key advantages to this breakout and microphone is the bottom ported input. This means the microphone's input can fit flush against the enclosure of your project. Plus you will not have to deal with trying to solder the...

$0.95  
205 pc(s)
Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color and a common cathode. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors!...

$19.95 $24.95  
1 pc(s)
Xbee radios are an awesome way to add wireless capability to your Arduino project and now it's even easier with the XBee Shield. The shield form-factor mates directly with any dev board that has an Arduino standard footprint and equips it with wireless communication capabilities using the...

$0.95  
63 pc(s)
Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins: one for each color and a common anode. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors! Note: The datasheet below is for the...

$4.75 $9.50  
1 pc(s)
This is a large board for prototyping through hole components with the LilyPad system. There are an array of pins all shorted together with 10mil traces. This allows for quick and easy prototyping - all you have to do is cut the traces between holes you don't want connected! Standard 0.1"...

$2.95 $3.95  
2 pc(s)
This is a simple slide switch for the LilyPad. Use it as a simple ON/OFF switch, or to control LEDs, buzzers, sensors, etc. LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to...

$6.30 $9.00  
61 pc(s)
This is a small force sensitive resistor. It has a 0.16" (4 mm) diameter active sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR,...

$0.50  
2030 pc(s)
This is a small 12mm round passive buzzer that operates around the audible 2kHz range. We drove it directly from a 3v to 5V Arduino or micro:bit to generate simple melody. Note : This passive buzzer requires a square wave (PWM) signal to make a sound or to play melodies. The frequency...

$0.50 $0.75  
53 pc(s)
Screw Terminals with 5mm pitch pins. Comes in 2 positions and have the really cool feature of slide-locking together to form any size you need (4, 6, up to 20 without problems). Rated up to 300V @ 8A. Terminal can accept 26 to 14AWG wire. 5mm/197mil pin pitch will line up well with standard...

$26.60  
3 pc(s)
This is a breakout board for Honeywell's HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and delivers it as an analog output voltage. You can connect the output of the sensor directly to an ADC on a microcontroller; and, thanks to the sensor's near linear voltage...

$0.17 $0.35  
230 pc(s)
This is a standard 12mm square momentary button. What we really like is the large button head and good tactile feel (it 'clicks' really well). This button is great for user input on a PCB or a good, big reset button on a breadboard. Breadboard friendly!

$0.60  
29 pc(s)
This is a 8-pin female header, with extra long legs -- great for stacking Arduino shields. Pins are spaced by 0.1". Documents: Datasheet

$0.60  
17 pc(s)
This is a 6-pin female header, with extra long legs -- great for stacking Arduino shields. Pins are spaced by 0.1". Documents: Datasheet

$0.60  
15 pc(s)
This is a 10-pin female header, with extra long legs -- great for stacking R3-compatible Arduino shields. Pins are spaced by 0.1".

$6.50  
4 pc(s)
This is a simple, thumbnail-size RFID tag. These tags are great for sensing presence, identification, etc., and they're small, so they can be easily sewn into clothing or inserted into enclosures. Each tag comes with a unique 32-bit ID code and is not reprogrammable. The carrier frequency of...

$6.50 $8.85  
2 pc(s)
This is a small buzzer for the LilyPad system. Use 2 I/O pins on the LilyPad main board and create different noises based on the different frequency of I/O toggling. Loud enough to hear inside a pocket but not obtrusively loud. Please note: This is an inductive buzzer meaning that is will act...

$5.50 $7.95  
3 pc(s)
Blink any color you need! Use the LilyPad RGB LED board as a simple indicator, or by pulsing the red, green, and blue channels, you can produce a broad variety of colors. Each of the colors in the RGB LED are connected to one of the sew tabs on the board labeled R, G, and B. The color...

$3.50  
6 pc(s)
These are 12" long jumper wires terminated as female to female. Use these to jumper from any male header on any board. Multiple jumpers can be connected next to one another on a 0.1" header. Comes in one package of ten jumpers (colors shown). We use these wires for everything! They work great...

$5.95 $7.50  
1 pc(s)
This is a simple-to-use liquefied petroleum gas (LPG) sensor, suitable for sensing  LPG (composed of mostly propane and butane) concentrations in the air. The MQ-6 can detect gas concentrations anywhere from 200 to 10000ppm. This sensor has a high sensitivity and fast response...

$2.90  
375 pc(s)
The TMP36 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (centigrade) temperature. The TMP36 do not require any external calibration to provide typical accuracies of ±1°C at +25°C and ±2°C over the −40°C...

$3.50  
17 pc(s)
These are 12" 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 ten jumpers (colors shown). We use these wires for everything! They work...

$3.50  
2 pc(s)
These are 12" long jumper wires terminated as male to male. Use these to jumper from any female header on any board. Multiple jumpers can be connected next to one another on a 0.1" header. Comes in one pack of ten jumpers (colors shown). We use these wires for everything! They work great with...

$3.45 $6.95  
4 pc(s)
This connector cable interfaces UFL RF connectors to RP-SMA antennas. Use it to attach any standard RP-SMA 2.4GHz antenna to the DPAC 802.11 modules. Dimensions: 4" Length

$15.50  
4 pc(s)
This is a force sensitive resistor with a square, 1.75x1.5", sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be...

$15.50  
3 pc(s)
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. Documents: Datasheet Dimensions: 0.5x7.7"

$12.60  
7 pc(s)
2.4GHz Duck Antenna 2.2dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. 4" long. The FCC is moving towards Part 15 compliance. All this means is that all the SMA RF connectors are changing gender. Really annoying for those of...

$9.90  
1 pc(s)
This is a force sensitive resistor with a round, 0.5" diameter, sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will...

$23.00 $24.50  
2 pc(s)
The smallest and easiest to use serial conversion circuit on the market! This board has one purpose in life - to convert RS232 to TTL and vice versa (TX and RX). This will allow a microcontroller to communicate with a computer. Shifter SMD is powered from the target application and can run at...

$2.35  
4 pc(s)
A simple breakout PCB for the GP1A57HR photo interrupter. This PCB has three connections for PWR, GND, and Signal. When the gate is clear, SIG will be high (>4.9V). When the gate is blocked by a finger, writing utensil, food pellet, or anything else - SIG will go low (<0.4V)....

$4.00 $5.55  
3 pc(s)
This sensor is composed of an infrared emitter on one upright and a shielded infrared detector on the other. By emitting a beam of infrared light from one upright to the other, the sensor can detect when an object passes between the uprights, breaking the beam. Used for many applications...

$69.95  
1 pc(s)
Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing / Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash,...

$2.95  
1 pc(s)
These are 155mm long jumpers with male connectors on both ends. Use these to jumper from any female header on any board, to any other female header. Combine these with our female to female jumpers to create a male to female jumper. Multiple jumpers can be installed next to one another on a 0.1"...
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