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), …

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…

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

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…

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

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

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

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

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

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

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

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

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

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

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

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

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…

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

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

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

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

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

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

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

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…

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…

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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