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Mini Load Cell - 100g, Straight Bar (TAL221)
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Price: $17.12
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Sparkfun Item #: SEN-14727 -

"This miniature straight bar load cell (sometimes called a strain gauge) can translate up to 100g of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the bar. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring...

Mini Load Cell - 500g, Straight Bar (TAL221)
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Price: $20.76
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Sparkfun Item #: SEN-14728 -

"This miniature straight bar load cell (sometimes called a strain gauge) can translate up to 500g of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the bar. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring...

Mini Photocell
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Price: $2.61
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Sparkfun Item #: SEN-09088 -

"This is a very small light sensor. A photocell changes (also called a photodetector, photo resistor, CdS or photoconductive cell) resistance depending on the amount of light it is exposed to. These little sensors make great ambient light triggers (when light in the room turns on, do something). Features: Light resistance : ~1k Ohm Dark resistance : ~10k Ohm Max voltage : 150V Max power: 100mW Dimensions: 2 x 4 x 5mm 4mm between pins 31mm lead length Documents: Datasheet Hookup Guide Bildr...

MiniMoto - DRV8830 Breakout
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Sparkfun Item #: BOB-11890 -

MiniMoto - DRV8830 Breakout Description: The MiniMoto is a great little breakout for the DRV8830 I2C DC motor driver. The MiniMoto is great for driving most small robotics. With an operating voltage range of 2.7V to 6.8V and a current limit of 1A the DRV8830 is a versatile little driver.  In addition to the benefit of being controlled via I2C, which frees up data lines and processing on the CPU to be used for other tasks, the MiniMoto has the lowest voltage output capability...

MQ5 Gas Sensor
Price: $5.81
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Elecrow Item #: EL-SEN13650M -

    The MQ5 Gas Sensor module is useful for gas leakage detecting. It can detect LPG, i-butane, methane, alcohol, Hydrogen, smoke and so on. The sensitivity can be adjusted using the on-board potentiometer, and you'd use this sensor by reading the analog pin to which it is connected. Please use these sensors only in controlled experiments! Combustible gases and fumes are very dangerous! Here are details for some MQ gas sensor. SysmbolMQ-2MQ-3MQ-5MQ-9Detect GasCombustible...

MyoWare Cable Shield
Price: $6.87
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Sparkfun Item #: DEV-13687 -

"The MyoWare Muscle Sensor is now designed to be wearable allowing you to attach biomedical sensor pads directly to the board itself. However, there still may be cases where you want to mount the sensor pads away from the other hardware, this is where the MyoWare Cable Shield comes in. This shield provides a 3.5mm jack where you can attach a three electrode sensor cable allowing you to test and use the MyoWare Muscle Sensor without actually attaching it to your person. The MyoWare Cable Shield...

MyoWare Cable Shield
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Price: $8.61
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Sparkfun Item #: DEV-14109 -

"The MyoWare Muscle Sensor is now designed to be wearable, allowing you to attach biomedical sensor pads directly to the board itself. However, there still may be cases where you want to mount the sensor pads away from the other hardware; this is where the MyoWare Cable Shield comes in. This shield provides a 3.5mm jack where you can attach a three-electrode sensor cable, allowing you to test and use the MyoWare Muscle Sensor without actually attaching it to your person. The MyoWare Cable...

MyoWare LED Shield
Price: $46.87
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Sparkfun Item #: DEV-13688 -

"The MyoWare LED Shield is designed to pair with the MyoWare Muscle Sensor. The blue 10-segment bar graph shows the magnitude of the measured signal. The more muscle activation measured, the higher up the board the lit LEDs will go. With this shield you will be provided with a visual representation of the signals provided by the MyoWare Muscle Sensor and an on-board lithium polymer (LiPo) power source. This shield is likely to be the top board in a stack, so solder on some 1x3 male headers and...

MyoWare Muscle Sensor
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Price: $72.59
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Sparkfun Item #: SEN-13723 -

"Using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull levers, move joysticks… but what if we could take the buttons, levers and joysticks out of the equation? This is the MyoWare Muscle Sensor, an Arduino-powered, all-in-one electromyography (EMG) sensor from Advancer Technologies. The MyoWare board acts by measuring the filtered and rectified electrical activity of a muscle; outputting 0-Vs Volts depending the amount of...

MyoWare Muscle Sensor Development Kit
Price: $139.03
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Sparkfun Item #: KIT-13772 -

"Using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull levers, move joysticks … but what if we could take the buttons, levers and joysticks out of the equation? This is the MyoWare Muscle Sensor Development Kit, an Arduino-powered, electromyography (EMG) sensor kit that provides you with a MyoWare Muscle Sensor, each shield developed here at SparkFun, and everything you need to connect them all together. The MyoWare board,...

MyoWare Muscle Sensor Development Kit
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Price: $144.25
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Sparkfun Item #: KIT-14409 -

"Using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull levers, move joysticks…but what if we could take the buttons, levers and joysticks out of the equation? This is the MyoWare Muscle Sensor Development Kit, an Arduino-powered, electromyography (EMG) sensor kit that provides you with a MyoWare Muscle Sensor, each MyoWare shield developed here at SparkFun, and everything you need to connect them all together. The MyoWare board...

MyoWare Power Shield
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Price: $7.83
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Sparkfun Item #: DEV-13684 -

"The MyoWare Power Shield is designed to take two standard CR2032 coin cell batteries to power the MyoWare Muscle Sensor. We have made this board in a way that the coin cell batteries are connected in parallel for extended capacity at a nominal 3.0V. Connecting the MyoWare Muscle Sensor to battery power allows for a cleaner signal while also eliminating the possibility of creating a dangerous current path to the power grid. One thing to note is that due to the size of the batteries, the remote...

MyoWare Proto Shield
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Price: $5.13
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Sparkfun Item #: BOB-13709 -

"This is the MyoWare Proto Shield, a simple proto-board for your MyoWare Muscle Sensor. With this shield you will be able to use the area provided to solder on whatever custom circuitry you can come up with. This shield provides 8 x 15 solderable through holes on a standard 0.1" grid. The MyoWare Proto Shield is equipped with two rows of 3-pin plated through holes on each end of the board. This allows for standard 0.1" headers to be used to stack the shield with other MyoWare boards. The...

NeuroSky MindWave Mobile 2
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Price: $208.58
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Sparkfun Item #: SEN-14758 -

"This is the MindWave Mobile 2 from NeuroSky, an EEG headset that safely measures and transfers the power spectrum (alpha waves, beta waves, etc.) data via Bluetooth Low Energy (BLE) or Bluetooth Classic to wirelessly communicate with your computer, iOS, or Android device. Simply slip this headset on to see your brainwaves change in real time! With the MindWave Mobile 2 you can monitor your levels of attention and relaxation — and even learn about how your brain responds to your favorite...

NeuroSky MindWave Mobile+
Price: $208.58
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Sparkfun Item #: SEN-14455 -

"This is the MindWave Mobile+ from NeuroSky, an EEG headset that safely measures and transfers the power spectrum (alpha waves, beta waves, etc.) data via Bluetooth Low Energy (BLE) to wirelessly communicate with your computer, iOS or Android device. Simply slip this headset on to see your brainwaves change in real time! With the MindWave Mobile+ you can monitor your levels of attention and relaxation — and even learn about how your brain responds to your favorite music. This headset is...

NFC-RFID Expansion Board for Onion Omega
Price: $38.26
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Sparkfun Item #: DEV-14634 -

"The NFC-RFID Expansion Board will bring a new world of exciting functionality and application to your Omega2 module. As with other expansions, it will plug into your Onion Expansion, Arduino or Power Dock, and provide you with both NFC and RFID communication. This board makes use of the PN532 controller chip and is embedded in most smart phones and devices that support NFC. It can read and write to tags and cards, communicate with phones (for example payment processing), and ‘act’...

Non-Invasive Current Sensor - 30A
Price: $17.30
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Sparkfun Item #: SEN-11005 -

"This non-invasive current sensor (also known as a “split core current transformer”) can be clamped around the supply line of an electrical load to tell you how much current is passing through it. It does this by acting as an inductor and responding to the magnetic field around a current-carrying conductor. By reading the amount of current being produced by the coil, you can calculate how much current is passing through the conductor. This particular current sensor will measure a...

One Wire Digital Temperature Sensor - DS18B20
Price: $6.87
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Sparkfun Item #: SEN-00245 -

"This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each sensor has a unique 64-Bit Serial number etched into it - allows for a huge number of sensors to be used on one data bus. This is a wonderful part that is the corner stone of many data-logging and temperature control projects. Features: Unique 1-Wire® interface requires only one port pin for communication Each device has a unique 64-bit...

One-Wire Ambient Temperature Sensor - MAX31820
Price: $3.39
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Sparkfun Item #: SEN-14049 -

"The MAX31820 ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy. The device communicates over a one-wire bus that, by definition, requires only one data line (and ground) for communication with a central microprocessor. In addition, the device can derive power directly from the...

OpenMV M7 Camera
Price: $124.34
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Sparkfun Item #: SEN-14186 -

"The OpenMV M7 Camera is a small, low-power microcontroller board that allows you to easily implement applications using machine vision in the real world. The best part about the OpenMV is that it is not only capable of image capture, but also face detection, color tracking, QR code reading and plenty more. If you are looking for an economical camera module boasting multiple high-end features, look no further than the OpenMV M7! The OpenMV can be programmed in high-level Python scripts...

OpenMV M7 Camera
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Price: $124.34
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Sparkfun Item #: SEN-14632 -

"The OpenMV M7 Camera is a small, low-power microcontroller board that allows you to easily implement applications using machine vision in the real world. The best part about the OpenMV is that it is not only capable of image capture, but also face detection, color tracking, QR code reading and plenty more. If you are looking for an economical camera module boasting multiple high-end features, look no further than the OpenMV M7! The OpenMV can be programmed in high-level Python scripts...

Optical Detector / Phototransistor - QRD1114
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Price: $1.65
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Sparkfun Item #: SEN-00246 -

"This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared signal. Ideal for sensing black-to-white transitions or can be used to detect nearby objects (.5-1cm). Documents: Datasheet Hookup Guide Bildr Tutorial " ...

Optical Dust Sensor - GP2Y1010AU0F
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Price: $20.78
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Sparkfun Item #: COM-09689 -

"Sharp’s GP2Y1010AU0F is an optical air quality sensor, designed to sense dust particles. An infrared emitting diode and a phototransistor are diagonally arranged into this device, to allow it to detect the reflected light of dust in air. It is especially effective in detecting very fine particles like cigarette smoke, and is commonly used in air purifier systems. The sensor has a very low current consumption (20mA max, 11mA typical), and can be powered with up to 7VDC. The output of the...

ORP Kit
Price: $365.09
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Sparkfun Item #: SEN-14090 -

"This is the ORP Kit, a large sensor kit that measures the ability of a solution to act as an oxidizing or reducing agent. Inside the kit you will find everything you need to get started, including an ORP (Oxidation Reduction Potential) probe, an EZO™ ORP board, two bottles of solution and a BNC connector board. The ORP probe in this kit is a passive device that detects a current generated from the oxidation reduction of water. This current (which can be positive or negative) is very...

pH Sensor Kit
Price: $286.84
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Sparkfun Item #: SEN-10972 -

"Need to measure precise pH? This kit includes everything you need including buffer solutions for calibration, pH probe, and even a board to connect directly to your favorite microcontroller. This is laboratory-grade equipment and not just a toy or educational kit. All you need to do is follow the included instructions for calibrating the probe and connect it to the included pH Circuit. The pH Circuit outputs data from the probe over serial, so it couldn’t be much easier to use....

Photo Electric Counter
Price: $3.31
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Elecrow Item #: EL-SMS38491S -

This photoelectric counter uses a groove IR Optocoupler to detect if there is anything between the IR emiter and IR receiver. With this method, this module can detect the number of obstruction in a given time thus to detect the speed of the rotation. 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, adjust the potentiometer can adjust the sensitivity of the sensor.FeaturesWorking...

Photo Interrupter - GP1A57HRJ00F
Price: $4.35
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Sparkfun Item #: SEN-09299 -

"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 including optical limit switches, pellet dispensing, general object detection, etc. Gap width = 10mm A breakout board is available. Documents: Datasheet " ...

Photo Reflective Sensor - ST188
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Elecrow Item #: EL-SLS01014S -

    This is a reflective sensor combines a GaA1As infrared light emitting diode with a high sensitive Darlington phototransistor in a mini package. Specification                ...

Pi Tin for the Raspberry Pi - Black
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Sparkfun Item #: PRT-11980 -

Pi Tin for the Raspberry Pi - Black Description: The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These cases protect the Raspberry Pi from things like rogue wires that might short it out while still allowing full access to the board! Simply snap the RPi into the bottom half of the enclosure, then snap the two sides together. As you may have noticed,...

Pi Tin for the Raspberry Pi - Blue
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Sparkfun Item #: PRT-11981 -

Pi Tin for the Raspberry Pi - Blue Description: The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These cases protect the Raspberry Pi from things like rogue wires that might short it out while still allowing full access to the board! Simply snap the RPi into the bottom half of the enclosure, then snap the two sides together. As you may have noticed,...

Pi Tin for the Raspberry Pi - Green
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Sparkfun Item #: PRT-11901 -

Pi Tin for the Raspberry Pi - Green Description: The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These cases protect the Raspberry Pi from things like rogue wires that might short it out while still allowing full access to the board! Simply snap the RPi into the bottom half of the enclosure, then snap the two sides together. As you may have noticed,...

Piezo Vibration Sensor - Large
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Price: $5.13
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Sparkfun Item #: SEN-09196 -

"This basic piezo sensor from Measurement Specialties is often used for flex, touch, vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solderable crimp pins. Features: Flexible PVDF Piezo Polymer Film Wide dynamic range Laminated for higher voltage output 0.1" breadboard friendly leads...

Piezo Vibration Sensor - Small Horizontal
Price: $5.13
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Sparkfun Item #: SEN-09198 -

"The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and ‘tap’ inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with machine pins that allows for horizontal...

Piezo Vibration Sensor - Small Vertical
Price: $5.64
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Sparkfun Item #: SEN-09199 -

"The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and ‘tap’ inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solder pins that allows for vertical mounting....

PIR Motion Sensor (JST)
Price: $17.30
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Sparkfun Item #: SEN-13285 -

"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. If anything moves after that period, the ‘alarm’ pin will go low. This unit works great from 5 to 12V (datasheet shows 12V). You can also install a jumper wire past the 5V regulator on board to make this unit work at 3.3V. Sensor uses 1.6mA@3.3V. The alarm pin is an open collector meaning you will need a pull up resistor on the alarm pin. The open drain setup...

Pixy CMUcam5
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Price: $133.81
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Sparkfun Item #: SEN-14392 -

"The Pixy CMUcam5 is a remarkably fast image sensor that is able to be taught to find objects of various shapes, sizes, and colors. With the capability of tracking hundreds of objects simultaneously, the Pixy can be used in robotics, home automation, color coding, and more all the while only providing you with the information that you actually want. Pixy really is a fast and easy-to-use vision system equipped with a dedicated NXP LPC4330 processor making it capable of handling large loads of...

Pixy CMUcam5 Image Sensor
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Price: $120.58
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DFRobot Item #: SEN0182 -

Do you want to add a pair of eyes to your robot? This image sensor can do it.Pixy is a smart vision sensor you can quickly "teach" your robot to find objects. It saves your time by only outputting the object data you're interested in. Pixy is flexible - use it with the microcontroller of your choice. It connects directly to Arduino with the included cable, and fully supports Raspberry Pi and BeagleBone Black with included software libraries. It comes with mounting hardware to attach to your...

Pixy2 CMUcam5
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Price: $125.10
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Sparkfun Item #: SEN-14678 -

"The Pixy2 CMUcam5 is smaller, faster and more capable than the original Pixy. Like its predecessor, the Pixy2 can learn to detect objects that you teach it, just by pressing a button. Additionally, the Pixy2 has new algorithms that detect and track lines for use with line-following robots. With these new algorithms, you can detect intersections and “road signs” as well. The road signs can tell your robot what to do, such as turn left, turn right, slow down, etc. The best part is...

Pocket Geiger Radiation Sensor - Type 5
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Price: $121.64
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Sparkfun Item #: SEN-14209 -

"The Type 5 Pocket Geiger Radiation Sensor from Radiation Watch is a highly sensitive radiation sensor designed for the embedded systems market. Capable of detecting Gamma and Beta radiation, this sensor has a simple pulsed output that can be used with any microcontroller. Radiation Watch has a handful of documents and example Arduino code to get you up and running. They have also written a Windows example program in C# (source included!) to output graphs to a computer using an Arduino as the...

Polar Heart Rate Monitor Interface
Price: $104.25
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Sparkfun Item #: SEN-08661 -

"This is a wonderful evaluation board cooperatively designed by danjuliodesigns and SparkFun. The Heart Rate Monitor Interface (HRMI) is an intelligent peripheral device that converts the ECG signal from the Polar Heart Rate Monitor (HRM) into easy-to-use heart rate data. It implements a sophisticated algorithm for computing an average heart rate even with noisy or intermittent data from the transmitter. Note: This product is a collaboration with Dan Julio. A portion of each sales goes back to...

Programmable IR Receiver - SIS-2
Price: $17.30
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Sparkfun Item #: SEN-08753 -

"The SIS-2 monitors an IR receiver, and when a certain remote code is detected, an output pin will toggle. Two outputs are available and any code on any remote can be taught to the SIS-2. This makes it simple to implement an infrared (IR) remote controllable switching solution for a wide variety of applications. When used with an inexpensive IR receiver module, the SIS-2 recognizes IR signals from 2 independent IR remote control sources, and provides 2 modes of switching for your application....

Proto Pedal Enclosure
Price: $41.63
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Sparkfun Item #: PRT-13967 -

"The name of this part pretty much says it all! This is the Proto Pedal Enclosure, a custom-machined aluminum case designed specifically for the SparkFun Proto Pedal. This enclosure was designed to take a beating even under the hardest jam sessions. Paint it, sand it, or do whatever you want with it – the Proto Pedal Enclosure can take it. Go ahead, step on it too hard with ROCK POWER! Get Started with the Proto Pedal Assembly Guide Documents: Assembly & Theory Guide Analog Equalizer...

Pulse Sensor
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Sparkfun Item #: SEN-11574 -

"Heart rate data can be really useful whether you’re designing an exercise routine, studying your activity or anxiety levels or just want your shirt to blink with your heart beat. The problem is that heart rate can be difficult to measure. Luckily, the Pulse Sensor Amped can solve that problem! The Pulse Sensor Amped is a plug-and-play heart-rate sensor for Arduino. It can be used by students, artists, athletes, makers, and game & mobile developers who want to easily incorporate live...

PureThermal 2 - FLIR Lepton Smart I/O Board
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Price: $208.66
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Sparkfun Item #: DEV-14670 -

"The PureThermal 2 Smart I/O Board is a hackable thermal USB webcam breakout for the FLIR Lepton® thermal imaging camera core. Each PureThermal 2 ships pre-configured to operate as a plug-and-play UVC 1.0 USB thermal webcam that will work with a standard webcam and video apps on all major platforms. For developers, its reference firmware, viewer software, and hardware schematic are all open source! Each PureThermal 2 is equipped with the reliable STM32F412 ARM microprocessor capable of...

Rain/Steam Sensor
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Elecrow Item #: EL-SPM01021S -

    This water sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sens traces. The sensor board has a demension of 5.0 x 4.0cm. There is also a on-board potentiometer to adjust the sensitivity, you can get the amount of water induced contact between the grounded and sensor traces.With the comparator LM393, users can get both the analog signal and digital signal.     Connect this sensor...

Raspberry Pi 3 + Camera Enclosure - Clear
Price: $13.83
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Sparkfun Item #: PRT-14025 -

"The Raspberry Pi is THE new favorite of development platforms, so the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy clear plastic enclosures? These clear cases protect the Raspberry Pi 3, RPi2, and Model B+ from things like rogue wires that might short it out while still allowing full access to the board as well as proper airflow to keep your new toy cool! Simply snap the RPi into the bottom half of the enclosure, then snap...

Reed Switch (5pcs pack)
Price: $2.47
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Elecrow Item #: EL-SPM02102S -

    The reed switch is an electrical switch operated by an applied magnetic field. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. It consists of a pair of contacts on ferrous metal reeds in a hermetically sealed glass envelope. An example of a reed switch's application is to...

RFID Button - 16mm (125kHz)
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Price: $6.87
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Sparkfun Item #: SEN-09417 -

"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 this tag is 125kHz, so it works great with our ID-2, ID-12 and ID-20 RFID readers. We tested this RFID tag with one of our ID-12 readers and measured a maximum read distance of about 32mm. Features:...