Infrared proximity sensor made by Sharp. Part # GP2Y0A41SK0F has an analog output that varies from 3.1V at 4cm to 0.3V at …

The 9DOF Razor IMU incorporates three sensors - an ITG-3200 (MEMS triple-axis gyro), ADXL345 (triple-axis accelerometer), …

Introducing the BITalino, a (comparatively) low cost biomedical data acquisition dev board that allows you to create proje…

The 9DOF MPU-9150 is the world’s first 9-axis MotionTracking MEMS device designed for the low power, low cost, and h…

Whether you're an agriculturalist, a professional meteorologist or a weather hobbyist, building your own weather stati…

The 9DOF Sensor stick is a very small sensor board with 9 degrees of freedom. It includes the ADXL345 accelerometer, the H…

The MPU-6050 is a serious little piece of motion processing tech! By combining a MEMS 3-axis gyroscope and a 3-axis accele…

This is the Mindwave Mobile from NeuroSky, an EEG headset that safely measures and transfers the power spectrum (alpha wav…

 This is the LSM9DS0, a versatile motion-sensing system-in-a-chip that houses a 3-axis accelerometer, 3-axis …

This is a simple breakout for the ADXL345 accelerometer and the ITG-3200 MEMS gyro. With this board, you get a full 6 degr…

 The Weather Shield is an easy to use Arduino shield that grants you access to barometric pressure, relative humidity,…

 RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for …

Breakout board for the 3 axis ADXL335 from Analog Devices. This is the latest in a long, proven line of analog sensors - t…

Granted, using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull …

This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire int…

A simple flex sensor 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. Patented te…

This new version adds 2 standoff holes as well as an extra decoupling capacitor. The ADXL345 is a small, thin, low power, …

The RHT03 (also known by DHT-22) is a low cost humidity and temperature sensor with a single wire digital interface. The s…

This kit includes everything you need to get started with RFID. It includes a USB RFID board, ID-12LA RFID reader, and 2 R…

Infrared proximity sensor made by Sharp. Part # GP2Y0A21YK has an analog output that varies from 3.1V at 10cm to 0.4V at 8…

A simple flex sensor 4.5" in length. As the sensor is flexed, the resistance across the sensor increases. Patented te…

 The Sound Detector is a small and very easy to use audio sensing board with three different outputs. The Sound Detector n…

This breakout board makes it easy to use the tiny MMA8452Q accelerometer in your project. The MMA8452Q is a smart low-powe…

This is a breakout board for the Bosch BMP180 high-precision, low-power digital barometer. The BMP180 offers a pressure mea…

This is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature…

This is a force sensitive resistor with a round, 0.5" diameter, sensing area. This FSR will vary its resistance depen…

Ready to add audio to your next project? This small breakout board couples a small electret microphone with a 100x opamp t…

Infrared proximity sensor made by Sharp. Part # GP2Y0A02YK0F has an analog output that varies from 2.8V at 15cm to 0.4V at…

This is a breakout board for Honeywell's HMC5883L, a 3-axis digital compass. Communication with the HMC5883L is simple…

This is a very simple breakout board for the popular HMC6352. Remember the KISS mantra? We really enjoy the simplicity and…

RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for the p…

This is a force sensitive resistor with a square, 1.75x1.5", sensing area. This FSR will vary its resistance dependin…

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room…

Are you a super spy trying to spot ninja assassins in the dark? Or maybe you're just trying to figure out who's be…

Life has its ups and downs, so why not measure them? The MPL3115A2 is a MEMS pressure sensor that provides Altitude data t…

 Knowing where your robot is can be very important! The RedBot Wheel Encoder allows you to track the number of revolut…

Do you make time to talk to your Arduino? Maybe you should! The EasyVR Shield 2.0 is a voice recognition shield for Arduin…

Heart rate data can be really useful whether you're designing an exercise routine, studying your activity or anxiety l…

This is a very small light sensor. A photocell changes (also called a photodetector, photo resistor, CdS or photoconductiv…

This non-invasive current sensor (also known as a "split core current transformer") can be clamped around the su…

 The ML8511 breakout is an easy to use ultraviolet light sensor. The MP8511 UV (ultraviolet) Senso…

It's not the heat but the humidity that gets you, at least that's what they say. Really, both are important, what y…

This is a breakout board for Freescale's MMA7361L three-axis analog MEMS accelerometer. The sensor requires a very low…

 The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal…

This is the same temperature sensor that is included in our SparkFun Inventor's Kit. The TMP36 is a low voltage, preci…

This is a small force sensitive resistor. It has a 0.16" (4 mm) diameter active sensing area. This FSR from Interlink …

This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of u…

This is a breakout board for Freescale's MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2…

This load sensor is the same one found in digital bathroom scales (you know, the ones you use in January for your New Year…

Fingerprint scanners are awesome. Why use a key when you have one right at the tip of your finger? Unfortunately, they'…

This tiny breakout board features the ADMP401 MEMs microphone. One of the key advantages to this breakout and microphone is…

You talked, we listened, and we've revised our Geiger Counter board to address some of the most pressing concerns. Thi…

The LSM303DLMTR is a triple axis accelerometer combined with a triple axis magnetic sensor. This arrangement allows for th…

This is a wonderful evaluation board cooperatively designed by danjuliodesigns and SparkFun. The Heart Rate Monitor Interf…

Melexis' MLX90614ESF-BAA is an infrared thermometer designed for non-contact temperature sensing. An internal 17-bit A…

This is a breakout board for the incredibly small TMP102 digital temperature sensor. The TMP102 is a digital sensor (I2C a.…

The RFID USB Reader is a simple to use, USB to serial base unit for the ID-3LA, ID-12LA, and ID-20LA readers. Simply plug …

This is a breakout board for InvenSense's ITG-3200, a groundbreaking triple-axis, digital output MEMS gyroscope. The IT…

This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor's resistance. Pressing …

Capturing high-definition video is a challenge for any project, but a great way to see where you're project has been, …

We've been using and selling Analog Devices' ADXL accelerometers for a good while now, and now we've found ano…

The ArduIMU+ V3 is the latest and greatest version of DIYDrones' smart IMU. This time they've made it smaller and …

Side-looking Infrared Emitters and IR Detectors. These simple devices operate at 940nm and work well for generic IR systems…

Don't leave your next physical computing project stranded in a world of black and white! This color sensor module can …

This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -…

This is a breakout board for Honeywell's HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and d…

This is a breakout board for the L3G4200D low-power three-axis angular rate sensor. The L3G4200D is a MEMS motion sensor a…

This is a breakout board for the fully integrated Hall Effect based linear ACS712 current sensor. The sensor gives precise…

This is a breakout board for the ST's dual-axis LPY503AL gyro.  The LPY503AL is a MEMS motion sensor that measures angula…

Freescale’s MAG3110 is a small, low-power, digital 3-axis magnetometer. The device can be used in conjunction with a…

This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of u…

This current sensor gives precise current measurement for both AC and DC signals. These are good sensors for metering and …

Need to measure precise pH? This kit includes everything you need including buffer solutions for calibration, pH probe, an…

Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pret…

 Our UAV Development Board is back! The UDB5 (UAV Development Board version 5) comes populated with a dsPIC33FJ25…

Three pin JST connector with red, black, and yellow colors. 5 inch wire outs. This cable comes fully assembled as shown an…

 The TSL2561 Luminosity Sensor Breakout is a sophisticated light sensor which has a flat response across most of the v…

This version of the QRE1113 breakout board features an easy-to-use analog output, which will vary depending on the amount o…

This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor's resistance. Pressing …

This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor's resistance. Pressing …

 This is the T5403 breakout board, a fully calibrated barometric pressure sensor with an I2C interface. The T5403 sens…

This is an evaluation board for the MLX90614 IR Thermometer. The sensor is connected to an ATmega328 running at 3.3V with …

This basic piezo sensor from Measurement Specialties is often used for flex, touch, vibration and shock measurements. A sma…

Now mounted on a breakout board, the MPL115A1 is a digital barometer that uses MEMs technology to give accurate pressure me…

Sharp's GP2Y1010AU0F is an optical air quality sensor, designed to sense dust particles. An infrared emitting diode an…

This is a breakout board for the ultra low-power LIS331HH three axis linear accelerometer. The device has a digital I2C/SP…

This is a high-quality color CMOS camera module. Power the CM-32 module, hook up any display, monitor, or LCD screen with …

This is a small voltage and current sense PCB. DC current is determined by measuring a voltage drop across a pair of paral…

Basic breakout board for the TEMT6000 Ambient Light Sensor. Only what you need, nothing you don't. Sensor acts like a …

Fingerprint scanners are awesome. Why use a key when you have one right at the tip of your finger? Unfortunately, they'…

This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of u…

Use this simple IR receiver for infrared remote control of your next project. With low power consumption and an easy to us…

Need to put your finger on the pulse of the Earth? Did I just blow your mind? A geophone works by translating ground moveme…

This AT407 basic tilt switch can easily be used to detect orientation. Inside the can are a pair of balls that make contac…

The H2OhNo! is a water sensor alarm kit that you build yourself. When water is detected across the sense pins an alar…

DescriptionThis is a Arduino-compatible autopilot board designed by Chris Anderson and Jordi Muñoz of DIY Drones us…

The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The X…

 If you need to add user input without using a button, then a capacitive touch interface might be the answer. The …

In physical computing it's sometimes nice to know how physically close you are to an object. In other words, you may n…

You might know RFID as the technology that Big Brother uses to track your every move. Quickly, don the tinfoil hats!! …

This is a very small infrared receiver based on the TSOP85 receiver from Vishay. This receiver has all the filtering and 3…

The eTape Liquid Level Sensor from Milone Technologies is a great way to measure the level of a liquid. It has a resistive…

Breakout board for the low power, single axis ADXL193 MEMS accelerometer. The ADXL193 is a high-g sensor with a full scale…

This is a small voltage and current sense PCB. DC current is determined by measuring a voltage drop across a pair of paral…

These easy-to-use ultrasonic rangefinders from Maxbotix work the same way as the EZ line that you know and love, but this …

This is a simple, thumbnail-size RFID tag. These tags are great for sensing presence, identification, etc., and they'r…

This outdoor sensor provides very short to long distance detection and ranging in a compact, robust PVC housing. The ultras…

The MPR121 capacitive keypad uses the MPR121 and 12 touch sensitive pads to give you a simple 'keypad' with an I2C…

This is a glass, cylindrical RFID tag; it's very similar to those implanted into pets for identification purposes. But…

This is not your typical temperature sensor. The TMP006 Breakout can measure the temperature of an object without making c…

The US1881 is an integrated Hall effect latched sensor. That's nice but what does it do? Holding a magnet near the sen…

The SMB130 is a 28 pin DIP module that includes all necessary components for a 13.56 MHz RFID Mifare, aside from a PCB ant…

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It…

The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The X…

This board is an evaluation platform for the SM130 RFID module. It includes an XBee header, PCB trace antenna, and has the …

The Line Follower sensor is an add-on for your RedBot that gives your robot the ability to detect lines or nearby objects.…

This version of the QRE1113 breakout board features a digital output, using a capacitor discharge circuit to measure the am…

This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor's resistance. Pressing …

This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of u…

The IMU 3000 breakout features a 3-axis MEMS digital gyro with programmable ranges from +-250 to +-2000 degrees/sec. In ad…

 RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for …

Atlas Scientific is on a mission to make high-quality sensors for environmental monitoring available to everyday hackers a…

This very long force sensitive resistor - over 2 feet - has a sensing area of 0.25x24". This FSR from Interlink Electr…

These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly chang…

36" high temperature Type-K Thermocouple with glass braid insulation. Features: Type-K Thermocouple (Ni-Cr…

 This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared…

This is a simple-to-use compressed natural gas (CNG) sensor, suitable for sensing  natural gas (composed of mostly Me…

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detec…

Atlas Scientific is on a mission to make high-quality sensors for environmental monitoring available to everyday hackers a…

Atlas Scientific is on a mission to make high-quality sensors for environmental monitoring available to everyday hackers a…

 The INA169 is a “high-side current monitor,” which means that you place a resistor (a “shunt resist…

These simple switches are the Mechanical Bumper sensor for the SparkFun RedBot, giving you the ability to detect a co…

10K thermistor with a negative temperature coefficient.  Good choice for temp-sensing aplications. Vishay part #: …

This basic piezo sensor from Measurement Specialties is often used for flex, touch, vibration and shock measurements. A sma…

This is a Arduino-compatible autopilot board designed by Chris Anderson and Jordi Muñoz of DIY Drones using the new …

These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly chang…

This sensor is composed of an infrared emitter on one upright and a shielded infrared detector on the other. By emitting a…

This is a small voltage and current sense PCB. DC current is determined by measuring a voltage drop across a pair of paral…

This is an evaluation board for the ADXL345 three-axis MEMS accelerometer. The ADXL345 is an awesome little accelerometer, …

Sale: We've released a new rev of this RedBot Accelerometer with pre-soldered headers and reduced the price of this ol…

This is a super easy to use laser Bar Code Scanner. Simply plug the device into USB and it enumerates as a Human Interface…

Do you ever wonder what your autonomous robots do all day? Or have you ever wanted to put yourself in the driver's sea…

The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The X…

This is a simple three track magnetic card reader with serial output. This reader connects to your computer with a DB9 for…

These easy-to-use ultrasonic rangefinders from Maxbotix work the same way as the EZ line that you know and love, but this …

The MPR121 IC is a great way to build simple capacitive touch interfaces, and now it's even easier to incorporate into…

These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly chang…

Note: The High-Resolution version of this sensor is now available so this one is being discontinued. We're now selling…

The IMU 3000 breakout features a 3-axis MEMS digital gyro with programmable ranges from +-250 to +-2000 degrees/sec. In ad…

The TSL235R light-to-frequency converter outputs a square wave (50% duty cycle) with frequency directly proportional to li…

These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly chang…

This is a simple-to-use hydrogen gas sensor, suitable for sensing hydrogen concentrations in the air. The MQ-8 can detect …

 The Accelerometer sensor is an add-on for your RedBot that provides bump and motion detection. The sensor works …

This is a simple-to-use liquefied petroleum gas (LPG) sensor, suitable for sensing  LPG (composed of mostly propane a…

A simple breakout PCB for the GP1A57HR photo interrupter. This PCB has three connections for PWR, GND, and Signal. Whe…

These easy-to-use ultrasonic rangefinders from Maxbotix work the same way as the EZ line that you know and love, but this …

The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The X…

This new version adds 2 standoff holes as well as an extra decoupling capacitor. Breakout board for the Analog Device ADXL…

Simple breakout board for the MQ - 3, MQ - 4 and MQ - 6 gas sensors.  All you need is VCC at 5V, GND, and a resistor …

The HH10D relative humidity sensor module is comprised of a capacitive type humidity sensor, a CMOS capacitor to frequency…

 The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to off…

Small electret microphone. Useful in acoustic and audio applications. Documents: Datasheet Example Audi…

The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer hig…

This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of u…

This is a simple USB Webcam that can be plugged into your computer or dev board and start capturing video right away. The …

The Serial Accelerometer Dongle is a 3 axis accelerometer up to +/-6g with a simple serial interface. The Serial Accelerom…

The MPU-6050 is a serious little piece of motion processing tech! By combining a MEMS 3-axis gyroscope and a 3-axis accele…

This is a basic RFID tag that functions within the MIFARE Classic 1K guidelines. You can use these for all sorts of identi…

These are very thin variable potentiometers. By pressing down on various parts of the rotary dial, the resistance linearly…

The SIS-2 monitors an IR receiver, and when a certain remote code is detected, an output pin will toggle. Two outputs are …

This is a basic RFID tag that functions within the MIFARE Classic 1K guidelines. You can use these for all sorts of identi…

This is a simple breakout board for our RFID readers. This board will bring the 2mm spaced pins out to two 0.1" space…

This is a basic RFID tag that functions within the MIFARE Classic 1K guidelines. You can use these for all sorts of identi…

This analog panel meter measures DC current from 0-20mA with 5% accuracy. It has a clear and easy to read scale and an adju…

Need to test for nuclear fallout? Geiger tubes are the sensing elements of Geiger counters, which are used to measure ioni…

We can't tell what metallic salmon looks like, but this very small sensor can! The ADJD-S311-CR999 is a 4 channel digi…

The MPR121 IC is a great way to build simple capacitive touch interfaces, and now it's even easier to incorporate into…

Atlas Scientific is on a mission to make high-quality sensors for environmental monitoring available to everyday hackers a…

The ADXL345 is a small, thin, low power, three-axis MEMS accelerometer with high resolution (13-bit) measurement up to &plu…

This is a basic RFID tag that functions within the MIFARE Classic 1K guidelines. You can use these for all sorts of identi…

When you need to track movement in a volatile environment, HotPot provides a thin and sealed form-factor with operating te…

Compact USB 125kHz RFID Reader. Dimensions: 50x20x5mm (2.0x0.8x0.2") Features: USB plug in module, w…

There seem to be a lot of situations where simple wireless control is the one part of your project that just doesn't pa…

This tilt sensor can be used to detect multiple orientations. Inside the sensor are infrared emitters which are either ref…

The ADMP401 is a high quality, low cost analog output bottom ported omnidirectional MEMS microphone. That was a mouthful! A…

When you need to track movement in a volatile environment, HotPot provides a thin and sealed form-factor with operating te…

This is a small wiper/actuator that is used to provide adequate and even pressure on the surfaces of the potentiometers. U…

The MPR121QR2 is an I2C driven capacitive touch sensor controller, capable of managing up to twelve electrodes. The chip al…

The MMA8452Q is a smart low-power, three-axis, capacitive MEMS accelerometer with 12 bits of resolution. This acceleromete…

This cable can interface to a fingerprint scanners 6 pin connector. Comes terminated as a MLX 1.25mm male connector to six…

The LIS331HH is an ultra low-power full-scale three axis linear MEMS accelerometer. It has a digital I2C/SPI serial interf…

This is a high quality, 30mil standard card with a low coercivity magnetic stripe. The stripe can contain up to 3 tracks o…