Sensors are the eyes and ears of electronics, they monitor external stimuli such as sound, light, pressure, and heat, and convert them into signals for your microcontroller to process.
We've got all kinds of sensors available for your project, so make sure that you pick the correct one for your hardware. If you get stuck, be sure to reach out to us via our forum.
Take a look at some of our sensor tutorials:
- Kits
- Accelerometers
- Audio & Sound
- Biometric
- Camera
- Capacitive
- Current
- Distance
- Encoders
- Flex
- Force
- Gas & Smoke
- GPS and Location
- IMU
- Infrared
- Light & Colour
- Liquid & Flow
- Magnetic
- Money & Coin
- pH
- Radiation & Geiger
- Reflectance
- Soft Potentiometers
- Soil Moisture
- Stretch
- Temperature
- Vibration
- Voice Recognition
- Weather
Kits
If you're starting out, or just looking to experiment with new tech, a kit can be the way to go and it allows you to try out heaps of different sensors.
PiicoDev Starter Kit for Raspberry Pi PicoSKU: CE08256 Brand: PiicoDevGet started coding high-tech sensors and modules with the PiicoDev® Starter Kit - BYO Pico$90.95 AUD, inc GSTDelivered by Dec 31st- Gravity: Analog pH Sensor/Meter Kit V2SKU: SEN0161-V2 Brand: DFRobotDFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various...
- Basic Sensor Set For ArduinoSKU: DFR0018 Brand: DFRobotDFRobot sensor set. Made up of light sensor, touch sensor, temperature sensor, magnetic sensor, vibration sensor, tilt sensor, big button, LED lighting module and Grayscale
- Advance Sensor Set for ArduinoSKU: KIT0011 Brand: DFRobotIf you want to start playing with sensors, this kit will be the perfect choice for you to get started.
- Gravity: Analog pH Sensor / Meter Pro Kit V2SKU: SEN0169-V2 Brand: DFRobotDFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in...
Accelerometers
Accelerometers are the basis of all motion control. They allow you to sense both static and dynamic acceleration and are easy to integrate into your project.
Some important factors to take into account when buying an accelerometer for your project:
- Sensitivity (some have variable options)
- Resolution
- Communication method (eg. I2C or SPI)
- PiicoDev 3-Axis Accelerometer LIS3DH
Measure tilt-angle, linear acceleration. Detect tapping and shaking.
- ADXL345 Triple Axis Accelerometer (GY-291)SKU: 018-GY-291 Brand: Core ElectronicsIf your project is need of an accelerometer, take a look at this module. On-board is an ADXL345 triple axes accelerometer with high resolution (13-bit) up to ±16 g. The digital output data is formatted as 16-bit twos complement and accessible through either a SPI or I2C.
- ADXL335 Triple Axis Accelerometer (GY-61)SKU: CE06578 Brand: Core ElectronicsIf you need a low-power, low-cost accelerometer with analogue output, take a look at this module. powered by the triple-axis ADXL335 accelerometer with a measurement range of up to ±3.6 g.
- Adafruit MPU-6050 6-DoF Accel and Gyro Sensor - STEMMA QT QwiicSKU: ADA3886 Brand: AdafruitI mew, you mew Adafruit all mew for IMU! The MPU-6050 is what Adafruit call "an oldie but goodie" - this popular triple axis accelerometer plus gyro combo has been a staple...
- Adafruit LIS3DH Triple-Axis Accelerometer (+-2g/4g/8g/16g)SKU: ADA2809 Brand: AdafruitThe LIS3DH is a very popular low power triple-axis accelerometer. It's low-cost, but has just about every 'extra' you'd want in an accelerometer: Three axis sensing...
Audio & Sound
Sound is all around us, and whether you just need a sound trigger, or a miniature microphone, we've got sensors for every project.
- Sound detection Sensor ModuleSKU: CE05184 Brand: Core ElectronicsDetects sound that is greater than the ambient noise (adjustable sensitivity). Can operate from 3.3V to 5V.
- Mini USB MicrophoneSKU: ADA3367 Brand: AdafruitHey, listen up! It's the world's smallest USB microphone! OK maybe it's not in the Guinness Record Book, but it is pretty darn small! This plug-and-play Mini USB...
- Electret Microphone Amplifier - MAX4466 with Adjustable GainSKU: ADA1063 Brand: AdafruitAdd an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone...$13.75 AUD, inc GSTAs low as $12.79 AUD, inc GST
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- Electret MicrophoneSKU: COM-08635 Brand: SparkfunSmall electret microphone. Useful in acoustic and audio applications.
Biometric
Biometric data is all about capturing information about our bodies and we've got heart rate monitors, fingerprint scanners, muscle sensors, and more.
- mmWave Radar - Human Presence DetectionThis 24GHz millimeter-wave radar sensor employs FMCW, CW multi-mode modulation, and separate transmitter and receiver antenna structure. In working, the sensor first...
- Basic Fingerprint Sensor With Socket Header CableSecure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. It's easy to use and more affordable than ever!
- Sensor Cable - Electrode Pads (3 connector)SKU: CAB-12970 Brand: SparkfunThis is your simple three conductor sensor cable with electrode pad leads. These cables are 24" long and feature a 3.5mm audio jack connector on one end with snap style receptacles for biomedical sensor pads. Each cable comes in a red/blue/black set.
- Pulse SensorSKU: SEN-11574 Brand: SparkfunHeart 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!
Camera
Capture the world around you with our range of camera sensors. Whether it's for a Raspberry Pi, or simple surveillance system, we've got you covered.
- Raspberry Pi Camera Module 3
Capture high-quality images and videos with your Raspberry Pi.
$48.50 AUD, inc GSTDelivered by Dec 31st - ArduCam Mega 5MP CameraSKU: AC-B0401 Brand: Arducam
The most versatile camera made for microcontrollers.
- VGA OV7670 Camera Module I2C 640X480SKU: 018-DB-OV7670 Brand: Core ElectronicsA VGA Camera Module designed to easily interface with microcontrollers.
- Arducam 64MP Pi Hawk-eye Camera ModuleSKU: AC-B0399 Brand: Arducam
The same form factor as the official Raspberry Pi Cameras with 64 MP!
- Raspberry Pi Camera MountSKU: CE04431 Brand: PimoroniA stylish, small, and adjustable mount for your Pi Camera.
- Raspberry Pi Camera Board - Night Vision & Adjustable-Focus Lens (5MP)This Raspberry Pi Camera can use 2 x 3W high-intensity IR LED spotlights for night time recording. It also has an adjustable 3.6mm focal length and…
- Adafruit MLX90640 24x32 IR Thermal Camera Breakout - 110 Degree FoVSKU: ADA4469 Brand: AdafruitYou can now add affordable heat-vision to your project and with an Adafruit MLX90640 Thermal Camera Breakout. This sensor contains a 24x32 array of IR thermal sensors...
- Arducam 64MP OwlSight Auto-Focus Camera Module for Raspberry PiSKU: AC-B0483 Brand: ArducamA huge 64MP sensor with 10x Digital Zoom
- Arduino Nicla VisionSKU: ABX00051 Brand: Arduino
Deploy computer vision at the edge faster than ever, with our ready-to-use, standalone intelligent camera.
- Raspberry Pi NoIR Camera Board v2 - 8 MegapixelsIf you thought the standard Raspberry Pi Camera Module was great, then you'll love the NoIR. It features an 8 megapixel Sony IMX219 sensor and a supporting PCB designed with the Raspberry Pi in mind.
- Raspberry Pi Camera Board v2 - 8 MegapixelsThe Raspberry Pi Camera Module v2 is a high quality 8 megapixel, Sony camera module featuring a fixed focus lens designed for the Raspberry Pi. It's capable of 3280 x 2464 pixel static images, and also supports 1080p30, 720p60 and 640x480p60/90 video.
Capacitive
When a standard switch or resistive touch button doesn't cut it, capacitive touch is the slicker, easier to use option, from a single button to a multichannel array.
- PiicoDev Capacitive Touch SensorAdd user control to your project with three touch pad inputs.
- Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121SKU: ADA1982 Brand: AdafruitAdd lots of touch sensors to your next microcontroller project with this easy-to-use 12-channel capacitive touch sensor breakout board, starring the MPR121. This...
- CAP1188 - 8-Key Capacitive Touch Sensor Breakout - I2C or SPISKU: ADA1602 Brand: AdafruitAdd lots of touch sensors to your next microcontroller project with this easy-to-use 8-channel capacitive touch sensor breakout board, starring the CAP1188. This...
- Standalone Momentary Capacitive Touch Sensor Breakout - AT42QT1010SKU: ADA1374 Brand: AdafruitThis breakout board is the simplest way to create a project with a single "momentary" capacitive touch sensor. No microcontroller is required here - just power with...
Current
Finding out how much current your project is drawing can be incredibly important whether it's a wearable, portable project, or just to watch the power consumption.
- Non-Invasive Current Sensor - 30ASKU: SEN-11005 Brand: SparkfunThis 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.
- SparkFun Current Sensor Breakout - ACS723 (Low Current)SKU: SEN-14544 Brand: SparkfunThe low current version of the SparkFun Current Sensor Breakout is a high accuracy board that utilizes the ACS723 for low to moderate AC and DC current sensing applications...
Distance
Detecting distances is a foundation of autonomous and guided robotics. It doesn't matter how smart your robot is if he keeps running into things!
We've got two different technologies of distance sensors; Infrared and Ultrasonic. Both have their advantages and we've got options for both.
- PiicoDev Laser Distance Sensor VL53L1XThe PiicoDev® Distance Sensor is a long-distance laser-ranging sensor that uses Time-of-Flight (ToF) to accurately measure distances up to 4m.
- PiicoDev Ultrasonic Rangefinder
Use echolocation to measure distance
- HC-SR04 Ultrasonic Module Distance Measuring SensorThe HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent range accuracy and stable readings in an easy-to-use package.
- Gravity: Digital Adjustable Infrared Proximity SensorSKU: SEN0019 Brand: DFRobotThis is an infrared distance switch. It has an adjustable detection range, 3cm - 80cm. It is small, easy to use/assemble, and inexpensive. Useful for robotics, interactive media, industrial assembly line, etc.
- Ultrasonic Distance Sensor (RCWL-1601) - 3 to 5VSKU: CE09432 Brand: Core ElectronicsEnhance your project with the Ultrasonic Distance Sensor (RCWL-1601). Pin and software compatible with the HC-SR04 sensor, it uses echolocation to detect objects within a range of 2 to 450 cm. Now compatible with both 3.3V and 5V power supplies.
Encoders
Encoders allow you to track rotation speed and measure wheel position using optical or magnetic sensors, and they're easy to use with your project.
- Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V (HPCB compatible)SKU: POLOLU-3081 Brand: PololuAdd quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit.
- Magnetic Encoder Pair Kit with Side-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18VSKU: POLOLU-4761 Brand: PololuAdd quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit
- Magnetic Encoder Pair Kit with Top-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18VSKU: POLOLU-4760 Brand: PololuAdd quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit.
- Wheel Encoders for DFRobot 3PA and 4WD RoversSKU: SEN0038 Brand: DFRobotThese encoders are designed for DFRobot 3PA and AWD Rovers. They can give you the rotation degree of the wheels. Encoder use a non-contact method to convert the angular displacement signals. Best fit with Micro DC Geared Motor.
Flex
Perhaps you're inspired by flex-sensing wearables? Either way, flex sensors can bring life to your project.
- Flex Sensor 2.2"SKU: SEN-10264 Brand: SparkfunA simple flex sensor 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the original Nintendo Power Glove. I love the Nintendo Power Glove. It’s so bad!
- Conductive Rubber Cord Stretch Sensor + extras!SKU: ADA519 Brand: AdafruitMeasuring stretch forces isn't easy - unless you have some conductive rubber cord! This cord is 2mm diameter, and 1 meter long, made of carbon-black impregnated...
Force
Measure and detect force, pressure, and weight with precision using our range of force sensors, load cells, and tactile sensors for various applications.
- Makerverse Load Cell Amplifier
Reads weight or force from a load cell with 18-bit precision
- 3kg Beam Load CellSKU: CE08423 Brand: Core Electronics
A 3kg bar load cell, perfect for weighing small objects!
- Calibration Weight - 50.00gSKU: CE08490 Brand: Core ElectronicsA precise calibration weight is useful for calibrating small scales.
- SparkFun Load Cell Amplifier - HX711SKU: SEN-13879 Brand: SparkfunThe SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell, and with some calibration you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control or simple presence detection.
- Force Sensitive Resistor 0.5"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 be larger than 1MΩ. This FSR can sense applied force anywhere in the range of 100g-10kg.
- 20kg Beam Load CellSKU: CE08687 Brand: Core Electronics
A 20kg bar load cell, perfect for weighing heavy objects!
- Load Sensor - 50kgSKU: SEN-10245 Brand: SparkfunThis load sensor is the same one found in digital bathroom scales (you know, the ones you use in January for your New Year’s resolutions, and then forget about a month later). This sensor can measure up to about 110 pounds. Check the video below for a simple explanation on how these work and how to use them.
- 1kg Beam Load CellSKU: CE08685 Brand: Core ElectronicsA 1kg bar load cell, perfect for weighing very light objects!
- 10kg Beam Load CellSKU: CE08686 Brand: Core Electronics
A 10kg bar load cell, perfect for weighing heavier objects!
Gas & Smoke
Whether it's detecting flammable gas, alcohol, or just small particles such as dust or smoke, our gas & smoke sensors are easy to get started with.
We've got pre-soldered modules, or sensors by themselves with a breakout board for easy integration with your project.
- PiicoDev Air Quality Sensor ENS160
Measure indoor air-quality - sensitive to fumes, cooking smells, humans.
- Adafruit SGP30 Air Quality Sensor Breakout - VOC and eCO2 - STEMMA QT / QwiicSKU: ADA3709 Brand: AdafruitBreathe easy with the SGP30 Multi-Pixel Gas Sensor, a fully integrated MOX gas sensor. This is a very fine air quality sensor from the sensor experts at Sensirion...
- Adafruit SCD-30 - NDIR CO2 Temperature and Humidity Sensor - STEMMA QT / QwiicSKU: ADA4867 Brand: AdafruitTake a deep breath in...now slowly breathe out. Mmm isn't it wonderful? All that air around us, which we bring into our lungs, extracts oxygen from, and then breathe out carbon dioxide. CO2 is essential for life on this planet we call Earth - we and plants take turns using and emitting CO2 in an elegant symbiosis. But it's important to keep that CO2 balanced - you don't want too much around, not good for humans and not good for our planet.
- Adafruit PMSA003I Air Quality Breakout - STEMMA QT / QwiicSKU: ADA4632 Brand: AdafruitBreathe easy, knowing that you can track and sense the quality of the air around you with this Adafruit PMSA003I Air Quality Breakout. This sensor is great for monitoring air quality, in a compact plug-in format.
- Gravity: I2C Oxygen SensorSKU: SEN0322 Brand: DFRobotThe Gravity: I2C Oxygen Sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently. With high anti-interference...
GPS and Location
Figure out where your project is on the Earth with a GPS module.
- U-blox NEO-6M Compatible GPS ModuleSKU: CE05949 Brand: Core ElectronicsThis GPS module is well known amongst the community and is often used with the ArduCopter gear. At the core is a U-blox Neo-6 GPS receiver which has advanced power management and anti-jamming technology. The module takes care of all the hardware requirements leaving only 4 connections to your micro/external application (Vcc RX TX Gnd).
IMU
IMUs (Inertial Measurement Unit) combine multiple sensors such as an accelerometer, gyroscope, and compass sensor to provide multi-axis motion tracking.
- PiicoDev 3-Axis Accelerometer LIS3DH
Measure tilt-angle, linear acceleration. Detect tapping and shaking.
- MPU-6050 Module 3 Axis Gyroscope + AccelerometerA 3-axis gyroscope and 3-axis accelerometer housed on a development board ready for prototyping.
- Adafruit 9-DOF Absolute Orientation IMU Fusion Breakout - BNO055If you've ever ordered and wire up a 9-DOF sensor, chances are you've also realized the challenge of turning the sensor data from an accelerometer, gyroscope and...
- Adafruit 9-DOF Absolute Orientation IMU Fusion Breakout - BNO055 - STEMMA QT / QwiicSKU: ADA4646 Brand: AdafruitIf you've ever ordered and wire up a 9-DOF sensor, chances are you've also realized the challenge of turning the sensor data from an accelerometer, gyroscope, and magnetometer into actual "3D space orientation"! Orientation is a hard problem to solve. The sensor fusion algorithms (the secret sauce that blends accelerometer, magnetometer, and gyroscope data into stable three-axis orientation output) can be mind-numbingly difficult to get right and implement on low-cost real-time systems.
Infrared
It's light that you can't see, but is all around you! Infrared technology is used in thermometers, distance sensors, remote controls, and heaps more.
- PIR Infrared Motion Sensor (HC-SR501)PIR sensors often referred to as, "Passive Infrared" or "IR motion" sensors, enable you to sense motion
- IR Receiver Diode - TSOP38238SKU: SEN-10266 Brand: SparkfunUse 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.
- IR Break Beam Sensor - 3mm LEDsInfrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a...
- PIR (motion) sensorSKU: ADA189 Brand: AdafruitPIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before...
- Adafruit MLX90640 24x32 IR Thermal Camera Breakout - 110 Degree FoVSKU: ADA4469 Brand: AdafruitYou can now add affordable heat-vision to your project and with an Adafruit MLX90640 Thermal Camera Breakout. This sensor contains a 24x32 array of IR thermal sensors...
- Makerverse IR Line SensorSKU: CE08493 Brand: Makerverse
Detect lines with the spare analog channels on your microcontroller!
Light & Colour
Light sensors can be used for all kinds of applications from ambient levels and colour sensing, to proximity control and basic make/break circuits.
- PiicoDev Ambient Light Sensor VEML6030Measure the brightness of ambient light with a 16-bit sensor.
- PiicoDev Colour Sensor VEML6040Experiment with light! Differentiate colour hues and classify objects based on their colour.
- BH1750FVI Digital Light intensity Sensor Module (GY-30)SKU: CE05173 Brand: Core ElectronicsBH1750FVI is a digital Ambient Light Sensor IC for I2 Cbus interface. This IC is the suitable for obtaining the ambient light data for adjusting LCD and Keypad backlight power of Mobile phone. It is possible to detect wide range at high resolution.
- BH1750FVI Digital Light intensity Sensor Module (GY-302)SKU: CE05153 Brand: Core ElectronicsBH1750 is a digital Ambient Light Sensor IC with an I2C bus interface. The module does all of the hard work, providing a simple digital value via I2C that represents luminance (Lux).
- Light Dependent Resistor (LDR)SKU: CE09439 Brand: Core Electronics
Easily measure light levels with a a photoresistor!
Liquid & Flow
For projects such as aquariums, hydroponics, fountains, and more, being able to measure the water level, or flow rate can be incredibly valuable.
- Gravity: Analog Water Pressure Sensor (1MPa)SKU: SEN0257 Brand: DFRobotThis is a water pressure sensor adopts DFRobot Gravity 3-pin interface. It supports standard 5V voltage input and 0.5~4.5V linear voltage output. It is compatible...
- Gravity: Analog pH Sensor/Meter Kit V2SKU: SEN0161-V2 Brand: DFRobotDFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various...
- Gravity: Throw-in Type Liquid Level TransmitterSKU: KIT0139 Brand: DFRobotThis throw-in type liquid level transmitter adopts high-performance pressure sensing chip, with advanced circuit processing and temperature compensation technology...
- Water Flow Sensor - 1/2"SKU: SEN0217 Brand: DFRobotThe Water Flow sensor measures the rate of a liquid flowing through it. The YF-S201 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse width signal. Connect it to a microcontroller and you can monitor multiple devices such as your coffee maker, sprinkler or anything else, and control the water flow rate to suit your needs!
Magnetic
Magnetic fields are equal parts fun and useful. We've got compass sensors, hall-effect sensors, and reed switches to integrate with your next project.
- PiicoDev Magnetometer QMC6310Measures invisible magnetic fields - use as a compass or to detect nearby magnets.
- Hall effect sensor (analog,threshold)SKU: CE09441 Brand: Core Electronics
Sense invisible magnetic fields around you! Use the adjustable digital output to set a threshold or the analog output to get a gauge of the distance.
- A3213 Hall Effect SensorSKU: 014-A3213EUA-TUnlike other Hall-effect switches, either a north or south pole of sufficient strength will turn the output on; in the absence of a magnetic field, the output is off.
- A1102 Hall Effect SensorSKU: CE05296The A1101 Hall-effect switches include the following on a single silicon chip: voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage regulator permits operation from 3.8 to 24 V.
- Hall-Effect Sensor - AH1815 (Non-Latching)SKU: SEN-14709 Brand: SparkfunThe AH1815 is an integrated Hall-Effect non-latched sensor. That’s nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle...
- Hall Effect Sensor - US1881SKU: COM-09312 Brand: SparkfunThe US1881 is an integrated Hall effect latched sensor. That’s nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robust presence sensor. A reed sensor also works nicely, but can be limited by the glass encapsulation and size. A hall effect sensor is much smaller, but can handle less current than a reed switch.
Money & Coin
Build your own coin-based machines using coin acceptor units. They can read different coins and accept or reject them based on programmable profiles.
- Coin Acceptor - Programmable (3 coin types)SKU: COM-11719 Brand: SparkfunAre you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three different kinds of coin! Whether you’re building your own arcade cabinet or just charging admission to your house, this programmable coin acceptor makes it easy to monetize your next project.
- Coin Acceptor - Programmable (6 coin types)SKU: COM-11636 Brand: SparkfunAre you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take up to 6 different kinds of coin! Whether you’re building your own arcade cabinet or just charging admission to your house, this programmable coin acceptor makes it easy to monetize your next project.
pH
Accurately measure and monitor the acidity or alkalinity of your solutions with our range of pH sensors, perfect for scientific, industrial, and hobbyist applications.
- Gravity: Analog pH Sensor/Meter Kit V2SKU: SEN0161-V2 Brand: DFRobotDFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various...
- Gravity: Analog pH Sensor / Meter Pro Kit V2SKU: SEN0169-V2 Brand: DFRobotDFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in...
- Industrial pH Electrode - Armor CasingSKU: FIT0348 Brand: DFRobotThis pH combination electrode is made of sensitive glass membrane with low impedance.It can be used in a variety of PH measurements with fast response, good thermal stability.It has the good reproducibility, difficult to hydrolysis, and basically eliminate the alkali error .In 0 to 14pH range,the output voltage of the electrode is linear.The reference system which consist of the Ag/AgCl gel electrolyte salt bridge has a stable half-cell potential and excellent anti-pollution performance.The ring PTFE membrane is not easy to be clogged, so the electrode is suitable for long-term online detection.
Radiation & Geiger
Whilst strictly for educational use only, Geiger counters can used to measure the radiation from simple household items, such as a smoke detector.
- Geiger Counter Kit - Radiation SensorSKU: ADA483 Brand: AdafruitDetect particles and/or make a cool random number generator with this handsome Geiger counter kit. This easy-to-make pack of parts turns a simple Geiger-Muller tube...
Reflectance
Reflectance sensors are essential for projects involving line following, obstacle detection, and surface detection, providing accurate readings for robotics and automation.
- QTR-1A Reflectance Sensor (2-Pack)SKU: POLOLU-2458 Brand: PololuThe QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following. The reflectance measurement is output as an analog voltage. This sensor is sold in packs of two units.
- QTR-8A Reflectance Sensor ArraySKU: POLOLU-960 Brand: PololuThis sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate analog voltage output.
Soft Potentiometers
Soft potentiometers are versatile, flexible sensors that provide variable resistance based on touch or pressure, perfect for creating innovative, responsive interfaces.
- SoftPot Membrane Potentiometer - 50mmSKU: SEN-08680 Brand: SparkfunThese are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications.
Soil Moisture
Keep your plants happy and healthy with soil moisture sensors that provide accurate readings for optimal watering and irrigation control.
- Kitronik Prong Soil Moisture Sensor for BBC micro:bitSKU: CE06251 Brand: KitronikThe Kitronik Prong soil moisture sensor for BBC microbit is a sensor board that can be directly mounted to a BBC micro:bit to monitor moisture present in soil.
- SparkFun Soil Moisture SensorSKU: SEN-13322 Brand: SparkfunThe SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two large exposed pads function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
Stretch
Stretch sensors are versatile components that measure deformation and elongation, making them ideal for wearable tech, robotics, and flexible electronics projects.
- Conductive Rubber Cord Stretch Sensor + extras!SKU: ADA519 Brand: AdafruitMeasuring stretch forces isn't easy - unless you have some conductive rubber cord! This cord is 2mm diameter, and 1 meter long, made of carbon-black impregnated...
- Conductive Rubber Sheet / Stretch Sensor- 200mm x 200mm x 1mmSKU: ADA5463 Brand: AdafruitThis rubber sheet is made of the same carbon-black impregnated rubber material that our conductive rubber cord uses. Traditionally it would be used for...
Temperature
Accurate temperature measurement is crucial for a variety of projects, and our range of sensors ensures you get precise readings every time.
- PiicoDev Precision Temperature Sensor TMP117Accurate to ±0.1°C (across -20°C to +50°C) with no calibration required.
- Temperature Sensor - Waterproof (DS18B20)SKU: SEN-11050 Brand: SparkfunThis sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor.
Vibration
Detect and measure vibrations with precision using our range of vibration sensors, perfect for monitoring, analysis, and data collection in various applications.
- Piezo ElementSKU: SEN-10293 Brand: SparkfunPiezo 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.
- Digital Vibration SensorSKU: DFR0027 Brand: DFRobot
This vibration sensor, as its name suggests, is capable of detecting weak vibration signals.
Voice Recognition
Unlock the power of voice with our voice recognition sensors and modules, perfect for adding hands-free control and voice commands to your projects.
- EasyVR 3 Plus Shield for ArduinoSKU: COM-15453 Brand: SparkfunDo you make time to talk to your Arduino? Maybe you should! The EasyVR 3 Plus Shield is a voice recognition shield for Arduino boards integrating an EasyVR module...$98.90 AUD, inc GSTAs low as $93.96 AUD, inc GST
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Weather
How's the weather? Well, you may never know without some sensors for your next project, and we've got both analog and digital options covered.
- PiicoDev Pressure Sensor MS5637Measure barometric pressure or infer altitude-change from air pressure.
- PiicoDev Atmospheric Sensor BME280
Measure temperature, humidity, and barometric pressure. Use it to build your own weather station or perform experiments.
- DHT22 Module (Temperature and Humidity)SKU: CE09581 Brand: Core ElectronicsAccurately measure temperature and humidity with the DHT22 module. Ideal for DIY weather stations or automatic plant watering systems. Only one pin required for temperature and humidity readings.
- DHT22 Temperature and Relative Humidity Sensor ModuleThe DHT22 is a step up from the older DHT11 and has some improved features.
- DHT11 Temperature and Relative Humidity Sensor ModuleThe module can detect surrounding environment of the humidity and temperature.
- GY-68 BMP180 Digital Pressure Sensor Module (Replaces BMP085)SKU: 018-GY-68 Brand: Core ElectronicsThe BMP180 is the BMP085's successor and brings to the table more accuracy, better energy consumption and smaller form size. There are plenty of example tutorials and guides for the BMP180; help by the fact it's a drop-in replacement for the BMP085.
- Temperature Sensor - Waterproof (DS18B20)SKU: SEN-11050 Brand: SparkfunThis sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor.
- Adafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor - STEMMA QTSKU: ADA2652 Brand: AdafruitBosch has stepped up their game with their new BME280 sensor, an environmental sensor with temperature, barometric pressure and humidity! This sensor is great for...
- Weather Meter KitSKU: SEN-15901 Brand: SparkfunWhether you're an agriculturalist, a professional meteorologist or a weather hobbyist, building your own weather station can be a really rewarding project. When...
- Anemometer Wind Speed Sensor w/Analog Voltage OutputSKU: ADA1733 Brand: AdafruitAn anemometer is a device used for measuring wind speed, and is a common weather station instrument. This well made anemometer is designed to sit outside and measure...
- Adafruit BMP280 I2C or SPI Barometric Pressure & Altitude Sensor - STEMMA QTSKU: ADA2651 Brand: AdafruitBosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to...
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