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2-Channels Opto Sensor
Price: $9.68
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Elecrow Item #: EL-SPS21211S -

Description This 2-Channels Opto Sensor is consist of 3 parts: 2 opto-emitters and receivers, one PCBA to adjust the sensitivity and map out the signal. With this sensor, you can measure if there are the objects in the measuring range, eapacilly useful in applications that you need to monitor the inputs&outputs of a system. When the opto sensor didn't covered , the D0 output logic LOW, the signal indicate LED light, when the opto sensor covered, the D0 output logic HIGH and the LED off,...

2D Barcode Scanner Module - DE2120
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Price: $67.26
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Sparkfun Item #: SPX-16410 -

The DYScan DE2120 is one of the coolest little barcode scanners we've ever seen. This tiny "scan engine" will read 20 different barcode symbologies — both 1D and 2D! This is achieved by using a camera coupled with on-board image processing to identify and decode everything from UPC codes to QR codes. The module also features two LEDs: one for illumination and one to project the red line that you're used to seeing from laser-based scanners. On a hardware level, this bare module is a little...

3 Axis Gyro-L3G4200D
Price: $22.71
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Elecrow Item #: EL-SMS34200D -

    This is a breakout board for the L3G4200D. the L3G4200D is a low-power three-axis angular rate sensor able to provide unprecedented stablility of zero rate level and sensitivity over temperature and time. It includes a sensing element and an IC interface capable of providing the measured angular rate to the external world through a digital interface (I2C/SPI).     The L3G4200D has a full scale of +/-250 / +/-500 / +/-2000 dps and is capable of...

3W mini audio stereo amplifier
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Price: $10.17
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DFRobot Item #: DFR0119 -

This is a mini stereo amplifier. It is a fully functional, two-channel audio amplifier, with an integrated sleep mode function. You can disable it on your sketch if you are not using it or not needed by connecting the sleep pin on your board. It&;lsquo;s specially good for some DIY project.|Specification| Power Supply: DC 3.6-5.5V (DO NOT apply over 5.5V, it damage the chip presently) Output power: 3w+3w (4 ohms) Efficiency: &;gt;90% Size: 15.5*24mm (0.6*0.94&;#39;&;#39;)|Documents| Wiki Doc...

4 Channels IR Reflective Sensor
Price: $7.52
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Elecrow Item #: EL-SPS40201S -

Description This 4 channels IR reflective sensor includes 4 IR sensors and mainboard to handle all the signals. Each IR reflective sensor is composed of an IR emitter and a receiver, if something is in the measuring range, the sensor would outputs related signal. There are also 4 potentiometers on the mainboard so that the measuring range can be adjusted as you wish. Application Idea Smart car; Line and edge following; omni-directional detecting; On-board indicator; Specification Supply...

4MM Inductive Metal Proximity Sensor
Price: $9.35
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Elecrow Item #: EL-SPM0409IP -

        Metal Proximity Sensor, which is also called non-contact proximity switch, it is composed of generator and shaping amplifier oscillator vibration in the switch after induction head, and produces an alternating magnetic field when the metal body detected.         This Inductive Proximity Sensor has high sensitivity, fast frequency response, high repeat positioning accuracy and also stability and reliable, it can detects metal components in 0~4mm...

50gm Polymorph Moldable Plastic
Price: $5.75
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MK-Misc Item #: polymorph -

50gm Polymorph Moldable Plastic Polymorph is a plastic that melts at around 60 degrees Celsius and becomes mouldable and easily shaped. All you need to do is pop some of the granules into hot water or heat them with a hair dryer and once they reach 60 degree you can shape them easily with your hands or put it into a mould ready to make complex shapes. If you make a mistake just put it back into the water and start again. This stuff really changed the way we tinkered and has been a life saver...

6 DOF Sensor - MPU6050
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Price: $17.07
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DFRobot Item #: SEN0142 -

At the beginning, the inertial measurement unit is an electronic device that measures and reports on a craft's velocity, orientation, and gravitational forces, using a combination of accelerators, gyroscopes, and magnetometers. Now IMUs are commonly used in the Human-computer interaction(HCI), navigational purposes and balancing technology used in the Segway Personal Transporter as we all known. The MPU-6000/MPU-6050 family of parts are the world’s first and only 6-axis MotionTracking...

6xAA  Battery Holder(double layer)
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Price: $2.15
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DFRobot Item #: FIT0078 -

This battery holder can hold 6 AA battery which can make 7.2 V rechargeable battery pack from NiMH / NiCd cells or 9V battery pack from alkaline cells.It comes with a 6" Red & Black Wires with side by side & stack connection. |Specification| Cell Quantity: 6 Battery type: AA Storage temperature: 25&;#39;C (77F, RoomTemperature) Max Operate temperature: 80&;#39;C (176F)|ShippingList| 6xAA battery holder (double layer) x1 ...

9 Degrees of Freedom - MPU-9150 Breakout
Price: $60.78
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Sparkfun Item #: SEN-11486 -

9 Degrees of Freedom - MPU-9150 Breakout Description: The MPU-9150 is the world’s first 9-axis MotionTracking device designed for the low power, low cost, and high performance requirements of consumer electronics equipment including smartphones, tablets and wearable sensors. And guess what? You get to play with it. This breakout board makes it easy to prototype with the InvenSense MPU-9150 by breaking out all the pins you need to standard 0.1" spaced headers. The board...

9V to Barrel Jack Adapter
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Price: $2.59
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DFRobot Item #: FIT0131 -

This simple cable has so many uses! Plug a 9V battery into one end and connect the other end to anything with a 5.5x2.1mm, center-positive barrel jack.Use this cable to battery-power any device that needs 9V and has an on-board barrel jack - it works great for Arduinos, development boards, evaluation boards, and more!|ShippingList| ?9V to Barrel Jack Adapter x1

Adjustable Infrared Sensor Switch 3 - 50cm
Price: $10.82
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Elecrow Item #: EL-SOD00350S -

    This is an infrared distance switch. It has an adjustable detection ranging from 3cm to 50cm. It is small, easy to use/assemble, and inexpensive. Useful for robotics, interactive media, industrial assembly line, etc. Specification Power supply: 5VCurrent: 100mARange: 3-50cm adjustable Red: +5V Yellow: Signal Green: GNDWire length: 45cm ...

Adjustable Infrared Sensor Switch 3 - 80cm
Price: $11.49
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Elecrow Item #: EL-SOD00380S -

    This is an infrared distance switch. It has an adjustable detection ranging from 3cm to 80cm. It is small, easy to use/assemble, and inexpensive. Useful for robotics, interactive media, industrial assembly line, etc. Specification Power supply: 5V Current: 100mA Range: 3-80cm adjustable Red: +5V Yellow: Signal Black: GND Wire length: 20cm Wiki & External links Manual/Wiki ...

Alcohol Gas Sensor - MQ-3
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Price: $8.89
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Sparkfun Item #: SEN-08880 -

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor. A simple interface could be a 0-3.3V ADC. This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; all you...

Amped RF WiFi Camera Module - WFV3918
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Price: $78.60
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Sparkfun Item #: WRL-15124 -

The WFV3918 from Amp'ed is a small footprint, low cost RF video module, supporting 720p video resolution, both live streaming and SD card storage, with up to 300m range line-of-sight (5Ghz band). Easily accessible via the VLC mobile app, the WFV3918 can be used to transmit video and audio remotely from your next project! This module combines an HD camera sensor with the ACC1340, Amp'ed's fully integrated WiFi Radio single chip solution, and the AK3918E HD IP Camera SoC. It also includes a MEMS...

Analog Gas Sensor
Price: $17.23
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DFRobot Item #: DFR0049 -

Analog Gas Sensor Introduction The gas sensor detects smoke, methane, carbon dioxide and other gases. It is able to give alarms when the smoke/gas leaks.  You can adjust the sensitivity with the potentiometer. Specification Type: Analog Detector: QM-NG1 Power supply needs: 5V Current: 100mA Pin Definition:  1-Output  2-GND  3-PWR  Document Datasheet Manual Shipping List Sensor (1 unit) Analog Sensor Cable (1 unit) (SKU:FIT0031) ...

AttoPilot Voltage and Current Sense Breakout - 45A
Price: $38.16
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Sparkfun Item #: SEN-10643 -

"This is a small voltage and current sense PCB. DC current is determined by measuring a voltage drop across a pair of parallel shunt resistors, then converted to a final analog voltage output by the TI INA-169. Voltage sense is accomplished by scaling to 3.3V ADC range by a precision resistor divider. The PCB is supplied without leads or connectors. The pad sizes are large enough to accommodate 12 gauge heavy duty leads (see datasheet) but care must be exercised in soldering. Smaller gauge...

Bare Conductive Printed Sensors (3 pack)
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Price: $29.19
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Sparkfun Item #: SEN-14696 -

Save time with ready-to-use touch and distance sensors, printed with a unique pattern. Bare Conductive has created intricate patterns on this three-pack of Printed Sensors for you to use in touch and proximity sensing projects. They’re perfect for testing your ideas quickly, without needing time to design your own pattern, or waiting for Electric Paint to dry! Just like other conductive paint tools and accessories, you will be able to customize and hack the printed sensors to make them fit...

Bare Conductive Touch Board Pro Kit
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Price: $359.32
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Sparkfun Item #: KIT-15055 -

No longer do you need to worry about what supplies to purchase to prepare for your next electric paint project. The Touch Board Pro Kit from Bare Conductive includes the tools you need to prototype and make everything from interactive wallpaper and talking murals to innovative musical instruments. Bare Conductive’s Electric Paint is just like any other water-based paint...except that it’s electrically conductive! This means that you can actually paint wires onto things like models, clothes,...

Barometer Sensor
Price: $24.89
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Elecrow Item #: EL-STH01002S -

    This Barometer Sensor has a Bosch BMP085 which is a high-accuracy chip to detect barometric pressure and temperature. It can widely measure pressure ranging from 300hPa to 1100hPa, AKA +9000m to -500m above sea level, with a super high accuracy of 0.03hPa(0.25m) in ultra-high resolution mode. This Barometer sensor compatible with 3.3V and 5V, so it can be used in Arduinos without moditdfication. Features Wide pressure range Arduino/Crowduino compatible interface (3.3V...

Barometric Pressure Sensor - BMP085 Breakout
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Price: $17.93
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Sparkfun Item #: SEN-11282 -

Barometric Pressure Sensor - BMP085 Breakout Description: This is a breakout board for the Bosch BMP085 high-precision, low-power digital barometer. The BMP085 offers a measuring range of 300 to 1100 hPa with an accuracy down to 0.2 hPa in ultra-high resolution mode. It's based on piezo-resistive technology for high accuracy, ruggedness and long term stability. These come factory-calibrated, with the calibration coefficients already stored in ROM. Writing your own code for it requires...

Bend Labs Digital Flex Sensor - 1-Axis, 4 Inch
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Price: $110.04
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Sparkfun Item #: SEN-15244 -

The Bend Labs Digital Flex Sensors are an innovative solution for measuring motion, providing a unique alternative to existing sensor technologies for measuring a highly accurate and drift-free angular displacement in a soft form factor while maintaining extremely low power consumption. Constructed using highly durable, medical grade silicone elastomers, this is a single axis bidirectional flex sensor which measures one angle for 2D orientation. Its low-power, integrated analog front end, with...

Bend Labs Digital Flex Sensor - 2-Axis, 4 Inch
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Price: $289.70
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Sparkfun Item #: SEN-15245 -

The Bend Labs Digital Flex Sensors are an innovative solution for measuring motion, providing a unique alternative to existing sensor technologies for measuring a highly accurate and drift-free angular displacement in a soft form factor while maintaining extremely low power consumption. Constructed using highly durable, medical grade silicone elastomers, this is a two axis bidirectional sensor which measures two angles in orthogonal planes for 3D orientation. Where previous flex sensors...

Biomedical Sensor Pad (10 pack)
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Price: $14.28
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Sparkfun Item #: SEN-12969 -

This is a 10 pack of Biomedical Sensor Pads, disposable electrodes that can be used to measure EEG, ECG and EMG levels. these little pads are perfect for short-term monitoring of Neurofeedback and Biofeedback purposes. They are to be used once and are very handy because of integrated, latex-free gel. Each pad adheres very well to the skin and the snap connector can be pushed on or removed from the electrode lead with no issue. Note: This product is NOT a medical device and is not intended to...

BITalino (r)evolution Board Kit
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Price: $426.69
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Sparkfun Item #: DEV-14022 -

This is the BITalino ( r )evolution Board Kit, a (comparatively) low-cost biomedical data acquisition dev board that allows you to create projects using physiological sensors and tools. Each BITalino is presented in a "ProtoSnap style," enabling it to be programmed as a whole board or snapped apart for use in future projects. This dev board also has no shortage of programming APIs, which include Arduino, Python, Java, Android, iOS and more. The BITalino is equipped with 14 removable "blocks,"...

Board Mount Hall Effect / Magnetic Sensor
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Price: $13.43
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Sparkfun Item #: SEN-16037 -

This is a cost-effective and highly functional hall-effect sensor. The Melexis 90217 is designed to be used with a bias magnet south facing the back (non-marked) side of the IC. With a single Hall plate, this sensor is immune to common rotary alignment problems. Very easy to interface with all microcontrollers. Features: Short circuit protection Rotary position gear tooth sensing ability No rotary orientation concerns High speed operation No chopper delay Zero speed detection On-chip 10 bit...

Bone Conduction Kit
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Price: $42.23
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DFRobot Item #: KIT0126 -

Bone conduction is a way of sound transmission. The sound is converted into different frequencies of mechanical vibration, and transmitted through human skull, bone labyrinth, inner ear lymphatic transmission, helix, auditory nerve, auditory center.Bone conduction headphonesThis kit is composed by a bone conduction speaker, a speaker driver board and other kinds of accessories. This kit is intended to help understand the principles of bone conduction technology, making hearing aids or bone...

Breadboard Power Supply 5V/3.3V
Price: $7.84
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DFRobot Item #: DFR0140 -

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard. It can be either powered from 6-12 DC2.1 power jack or from USB power.  The maximum current it can provide is 500mA.  Specification Input voltage: 6-12V (Power Jack) 5V (USB) Output voltage:3.3V/5V Output current:500mA On/Off switch Power status LED Pin Head 5/3.3V output Central positive DC2.1 power...

Breakout Board for SC16IS750 I2C-SPI-to-UART IC
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Sparkfun Item #: BOB-09981 -

Breakout Board for SC16IS750 I2C/SPI-to-UART IC Description: This is a breakout board for the SC16IS750, a handy chip used to convert I2C or SPI serial signals to a single-channel, high-performance UART. As an application example: we use this chip on our WiFly Shield to allow an Arduino to communicate with the WiFly RN-131G module - which is normally controlled via a UART - using an SPI interface. This allows for greater communication speeds and frees up the Arduino's UART for...

British Telecom Connector - BTA (female)
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Price: $3.50
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Sparkfun Item #: PRT-12753 -

These analog (RH) British Telecom connectors are primarily used by our English friends across the pond but here at SparkFun we like to use them for Vernier sensors. These 6-pin connectors are very similar to the RJ11s we use here in North America except instead of a bottom-mounted hook lock, the BTA uses a side-mounted lock. These BTA connectors are perfect for educators or other users who need to set up a Custom Vernier analog sensor which produces a voltage that changes from high to low or...

British Telecom Connector - BTD (Female)
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Sparkfun Item #: PRT-12754 -

These digital (LH) British Telecom connectors are primarily used by our English friends across the pond but here at SparkFun we like to use them for Vernier sensors. These 6-pin connectors are very similar to the RJ11s we use here in North America except instead of a bottom-mounted hook lock, the BTD uses a side-mounted lock. These BTD connectors are perfect for educators or other users who need to set up a Custom Vernier digital sensor which produces a voltage that needs to be measured like...

Bus Pirate
Price: $52.08
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Sparkfun Item #: TOL-09544 -

Bus Pirate Description: The Bus Pirate, created by Ian Lesnet and featured on Hack a Day, is a troubleshooting tool that communicates between a PC and any embedded device over most standard serial protocols, which include I2C, SPI, and asynchronous serial - all at voltages from 0-5.5VDC. This product eliminates a ton of early prototyping effort when working with new or unknown chips. Working with the Bus Pirate is simple and effective - type commands into a terminal on your computer, those...

Cable for Shiftout
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Price: $4.48
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DFRobot Item #: FIT0077 -

This cable is especially designed for Interface shield,shift out module, SPI Led and SPI LCD module. It is has a female 2&;times;3 IDC connector on each end that is designed to plug into a 0.100" (2.54 mm) 2&;times;3 shrouded box header. |Specification| Length:20cm (7.9&;#39;&;#39;) Female/Femal, IDC 2x3 Connector|ShippingList| Cable for Shiftout x1

Capacitive Fingerprint Scanner - UART (AD-013)
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Sparkfun Item #: SEN-15338 -

Fingerprint scanners have been easily available at a consumer level for a number of years now, so it is only logical that they would continue to grow and evolve as time moves on. That's what bring us to this Capacitive Fingerprint Scanner from ADH-Tech. The AD-013 fingerprint sensor module is a combination fingerprint scanner and MCU and provides a UART interface port for easy functionality. The AD-013 sets itself apart from other finger print scanners with the ability to read a fingerprint's...

Capacitive Touch Kit For Arduino
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Price: $33.62
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DFRobot Item #: DFR0129 -

Now, it is time to add a more fancy interactive way to your project. This DFRobot touch kit comes with three types touch sensors. An ipod styple wheel touch, a keypad touch which supports backlit and a grid touch pad which can recoginze something unique. This kit utilizes the not very "latest" capactive touch technology which make the sensing very sensitive. The kit is designed to be compatible with Arduino. Get Started with Capacitive Touch Kit Tutorial|Specification| Operation Voltage:5V...

Carbon Monoxide Sensor - MQ-7
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Price: $8.89
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Sparkfun Item #: SEN-09403 -

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 10 to 500ppm. This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC. This sensor comes in a package similar to our MQ-3 alcohol sensor, and can...

CMOS Camera Module - 728x488
Price: $55.56
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Sparkfun Item #: SEN-11745 -

"This is a high-quality color CMOS camera module. Power the CM-32 module, hook up any display, monitor, or LCD screen with an RCA input and get vivid color video at 728x488 resolution. Module is easily mountable and has a wide operating voltage (6V to 20V). Comes with high quality optics, all the on board circuitry to output RCA signal, and cable harness. Features: 728 x 488 Resolution 6V to 20V input 50mA (at 12V) Documents: Datasheet " ...

CMOS Camera Module - 976x592
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Price: $62.79
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Sparkfun Item #: SEN-15906 -

This is a high-quality color CMOS camera module. Power the CM-32 module, hook up any display, monitor, or LCD screen with an RCA input and get vivid color video at 976x592 resolution. Module is easily mountable and has a wide operating voltage (6V to 26V). Comes with high quality optics, all the on board circuitry to output RCA signal, and cable harness. Features: 976 x 592 Resolution 6V to 26V input 60mA (at 12V) Documents: Datasheet ...

CO2 Humidity and Temperature Sensor - SCD30
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Price: $123.52
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Sparkfun Item #: SEN-15112 -

The SCD30 from Sensirion is a high quality Nondispersive Infrared (NDIR) based CO₂ sensor capable of detecting 400 to 10000ppm with an accuracy of ±(30ppm+3%). In order to improve accuracy the SCD30 has temperature and humidity sensing built-in, as well as commands to set the current altitude. For additional accuracy the SCD30 also accepts ambient pressure readings! We've written an Arduino library to make reading the CO₂, humidity, and temperature very easy. It can be downloaded through the...

Crazyflie Flow V2 Deck
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Price: $112.73
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Sparkfun Item #: SEN-15788 -

Optical navigation: enable positioning in the air with optical motion detection. The Flow deck gives the Crazyflie 2.X the ability to understand when it’s moving in any direction. The VL53L1x ToF sensor measures the distance to the ground with high precision and the PMW3901 optical flow sensor measures movements in relation to the ground. This creates a flying 3D robot that can be pre-programmed to fly distances in any direction or act as an aid for beginners where it creates a very stable...

Devicter Sensor Node V4 (ATmega 328)
Price: $36.89
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Elecrow Item #: EL-CDD13497DD -

    devDuino Sensor Node v4 is a compact Arduino-compatible microcontroller and is designed to build wireless networks based on transceiver nRF24L01+. You can easily connect other sensors or actuators to this platform, to build your remote monitoring or controlling system. Unlike the version 1,2,3 is on board built-in sensor temperature and humidity. Features Built on Arduino-compatible architecture Clock frequency - 16MHz (may be reduced to reduce energy consumption by up...

DHT11 Temperature and Humidity Sensor
Price: $8.96
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DFRobot Item #: DFR0067 -

DHT11 Temperature and Humidity Sensor This DHT11 Temperature and Humidity Sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit microcontroller is connected. This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance...

DHT22 Temperature and Humidity Sensor
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Price: $16.38
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DFRobot Item #: SEN0137 -

DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability.The sensor includes a capacitive sensor wet components and a high-precision temperature measurement...

Digital Light Sensor - BH1750FVI
Price: $5.01
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Elecrow Item #: EL-SLS01011S -

    This is a BH1750FVI light intensity sensor module with built-in a 16 bit AD converter generating digital signal. The data from this module is light intensity in lx (lux meter). It communicate with micro-controller board through I2C bus. Features working Voltage: 3.3V~6V I2C bus Interface with 2 alternative address (f/s Mode Support) Spectral responsibility is approximately human eye response Wide range and High resolution (1 ~ 65535 lx) Light source dependency is...

Digital Temperature &; humidity sensor (With Stainless Steel Probe)
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Price: $50.85
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DFRobot Item #: SEN0148 -

This is an anti-rust, robust and precise SHT10 sensor, which can master enterprise-class and industrial-level applications. It can be applied in various fields: telepoint base stations, electronic control cabinet, production site, storehouse, machine rooms, greenhouses, animal farming, medicine stock and etc. Metallic package enables it to deal with the very dusty or other severe circumstance. the wall-hanging style makes it easy to install. The metallic mesh covering the sensor adopts method...

Dot Laser Emitter
Price: $4.62
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Elecrow Item #: EL-TEL2565L -

Such a little Laser emitter module is popular used in teaching, horizontal measurement and so on, the laser effective transmission distance can be upto 1km when drive current is 20 mA There are also laser emitters with cross spot or line sport.SpecificationDiameter: 9mmWavelength: 650nm Max power: 50 mW Life: >1,000 hCurrent&Voltage: 20mA@3VSpot: Dot , Φ10mm~Φ15 mm @ 15M ...

Dust Sensor Adapter
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Price: $6.72
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DFRobot Item #: DFR0280 -

Sharp GP2Y1010AU Dust Sensor requires some wiring on the breadboard and a list of components to make it Arduino compatible. This has turned down several people due to the thin wires of the sharp sensor making it yet another addition to the drawer. We've listened your requests and created this adapter so you can get started right away on your project. If you are planning to assemble several sensors for your air station and need to have it working soon, this adapter will save time on circuit...

Electret Microphone
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Price: $1.71
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Sparkfun Item #: COM-08635 -

Small electret microphone. Useful in acoustic and audio applications. Documents: Datasheet Example Audio LED control project by Adam Greig