SparkFun is an online retail store that sells the bits and pieces to make your electronics projects possible. No matter what your vision is, our products and resources are designed to make the world of electronics more accessible to the average person. In addition to products, SparkFun, through our Department of Education, offers classes and online tutorials designed to help educate individuals in the wonderful world of embedded electronics. Our ever-growing product catalog boasts over 2,000 components and widgets designed to help you unleash your inner inventor.
Dual-channel IR reflective sensor module using TCRT5000 for line tracking Operating voltage 3.5V–5V with onboard LM393 comparator Adjustable sensitivity via onboard potentiometer Detects black/white surfaces, obstacles, and pulse data sampling Compact and lightweight design for robotics and automation projects Ideal for line-following robots, object...
Windows Hello Facial Recognition: Enjoy secure and hands-free login using facial recognition. Enhanced Security: Eliminates the need for traditional passwords, reducing vulnerability to hacking. Lightning-Fast Login: Unlock your Windows 10/11 device in just 0.5 seconds. Universal Compatibility: Fits most laptops, tablets, and computers with adjustable...
Programmable battery charger module for 6V–60V DC batteries up to 30A Compatible with lithium, lead-acid, and multi-cell battery packs (2S–14S) LCD display with real-time voltage, capacity, and status monitoring Built-in 30A relay for safe, automatic charge and discharge control Adjustable charging parameters with precise 0.1V accuracy Compact design with...
Original DHT11 digital temperature & humidity sensor with calibrated output Measures 0–50°C temperature and 20–90% RH humidity with reliable accuracy Digital single-wire interface for easy integration with microcontrollers Long transmission distance up to 20 meters for flexible applications Ultra-low power consumption (<2.5mA) for efficient...
Analog air humidity sensor with resistance-based measurement Wide detection range: 10%–95% relative humidity (RH) High accuracy of ±3% RH at 25°C for reliable monitoring Compact size: only 10 × 5 × 0.65 mm (no case version) Operates across -20°C to +85°C for diverse environments Ideal for flexible integration into DIY and professional projects
Compact IR reflection sensor module based on QRE1113 Digital output, no ADC required – ideal for microcontrollers Operates at both 3.3V and 5V for wide compatibility Accurate surface detection at ~3mm optimal distance Perfect for line-following robots and surface detection projects Easy 3-pin header connection with onboard mounting hole
High-precision PT100 RTD temperature sensor with 3-wire configuration Wide measuring range from -200°C to +420°C for industrial applications Durable 200mm stainless steel probe with 7mm diameter and M12 thread Waterproof design for reliable use in harsh environments Resistance-based analog output (100Ω at 0°C) for accurate readings 150cm long cable for...
Compact digital sensor for accurate temperature and humidity measurement Measures 0°C to 50°C (±2°C) and 20% to 80% RH (±5% RH) Simple single-wire serial interface for easy integration Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers Low-cost, low-power sensor ideal for IoT and automation projects Perfect for weather stations,...
Magnetic reed contact sensor for door and window position detection Default open-circuit design, closes when magnet is nearby Supports working voltage up to 40V and max current of 0.1A Detection range up to 25mm for reliable triggering Easy integration with Arduino, microcontrollers, and alarm systems Compact 20 × 64mm housing with mounting holes for...
Compact magnetic reed switch sensor for door/window position detection Normally open (NO) design closes circuit when magnet is nearby Simple to integrate with Arduino, microcontrollers, and alarm systems Small form factor: reed switch 11 × 16 mm, magnet 11 × 15 mm Includes ~35 cm cable for flexible installation Ideal for security systems, smart homes, and...
Flexible thin force sensing resistor (FSR) with 30mm circular sensing area Detects applied force from 150g up to 20kg Resistance decreases as applied force increases (analog output) Ultra-thin design (0.45mm) with peel-and-stick backing for easy mounting Compatible with Arduino, Raspberry Pi, and microcontrollers via ADC Durable, cost-effective solution...
Flexible thin force sensing resistor (FSR) with 18.3mm circular sensing area Detects applied force from 20g up to 6kg Resistance decreases as applied force increases (analog output) Ultra-thin 0.45mm design with peel-and-stick backing for easy mounting Breadboard-friendly 0.1″ pitch 2-pin interface Durable, cost-effective solution with up to 10 million...
Flexible thin force sensing resistor (FSR) with 5mm circular sensing area Detects applied force from 20g up to 1kg Ultra-thin (0.45mm) and lightweight with peel-and-stick backing Resistance decreases as applied force increases (analog output) Breadboard-friendly 0.1″ pitch 2-pin interface for easy prototyping Supports up to 10 million actuations, durable...
Multi-Sensor Support: Works with various sensors like NTC thermistors, TCRT5000 line followers, and force sensors. Precise Control: Dual potentiometers for fine-tuning sensor thresholds. Wide Voltage Compatibility: LM393 chip ensures adaptability to diverse power sources. Compact & Durable Design: Integrates seamlessly into projects with a robust build.
A sensor that allows you to measure your pulse with your finger using a phototransistor. The red LED lights up each time it detects a pulse. Powered by 5 V.
940nm IR transmitter module designed for wireless infrared communication projects Operates on 5V supply voltage with digital output signal Compact design: 25 × 12 mm, lightweight at only 4g Comes with a 3-pin connection cable for easy integration Ideal for remote control systems, robotics, and DIY IR communication Reliable and efficient IR LED for stable...
40kHz ultrasonic sensor pair (TCT40-16T/R) for distance measurement and object detection Includes transmitter (T) and receiver (R) with 16mm aluminum housing Detects objects within a 0.2m to 18m range with high sensitivity Provides non-contact measurement for water levels, robotics, and automation Fast response time, durable build, and easy installation...
WiFi-enabled IoT sensor node powered by ESP8266 ESP-01/ESP-01S Integrated DHT11 sensor for temperature and humidity monitoring Supports 3.7V–12V DC power supply (including 3.7V Li-ion battery) Uploads real-time environmental data to a server via WiFi Compact, low-cost, and easy-to-integrate design for smart projects Perfect for IoT, smart home automation,...
EMG muscle sensor V3.0 with cable and electrodes Measures the electrical activity of muscles High signal quality for accurate and reliable measurement Adjustable gain and filtering for signal conditioning Compatible with various types of microcontrollers and data acquisition systems Comes with reusable electrodes and a 3.5mm jack cable for easy connection
NPK soil nutrient measurement RS485 MODBUS-RTU output 5–30V input, Arduino compatible IP68 waterproof, anti-corrosion probe Fast, accurate, stable readings For agriculture, irrigation, researchIf you're looking to work with an NPK sensor, you'll quickly notice that most options come with either Chinese-only documentation or limited support, making them...
Updated Grove Light Sensor V1.2 for accurate light intensity detection Uses GL5528 LDR + LM358 dual OP-AMP for reliable analog output High sensitivity in low-light conditions, wide spectrum detection Simple analog output signal (ADC compatible) for easy integration Plug-and-play Grove interface, perfect for beginners & prototyping Ideal for...
Non-contact liquid level detection for non-metallic containers Wide compatibility with water, toxic, acidic, and alkaline liquids 5–12V input voltage with low current consumption (5mA max) High sensitivity & stability, unaffected by wall thickness or impurities Easy external installation, no drilling required in airtight containers Durable design for...
Non-contact liquid level sensor for non-metallic airtight containers 24V NPN output for industrial automation and controller integration Detects toxic, acidic, alkaline, and high-pressure liquids safely High stability & sensitivity, unaffected by container wall thickness Fast 500ms response time with low 5mA power consumption Durable ABS housing, IP65...
Non-contact liquid level sensor for airtight non-metallic containers Wide voltage input (5–24V) for flexible usage PNP output with 1–100mA current capability Fast 500ms response time with high stability & sensitivity Detects water, acids, alkalis, toxic & high-pressure liquids safely Easy external installation, no drilling or direct liquid contact...
High-precision stainless steel pressure transducer with G1/4" interface Wide pressure range (0–1.2MPa), max applied pressure up to 2.4MPa High accuracy (±1.5%FS) with fast <2ms response time Output: 0.5–4.5VDC @ 5V input, low current consumption <10mA Durable stainless steel body, IP65 protection for long-term reliability Ideal for oil, gas, liquid...
Stainless steel pressure transducer with G1/4" threaded interface Pressure range up to 3MPa, ideal for high-pressure applications High accuracy (±1.5%FS) with <2ms fast response time Output: 0.5–4.5VDC @ 5V input, low power <10mA consumption Durable, surge-protected design, IP65 waterproof rating Perfect for oil, gas, and liquid tanks in industrial...
Stainless steel pressure transducer with G1/4" threaded interface Pressure range up to 0.8MPa, suitable for low-to-medium pressure system High accuracy (±1.5%FS) with <2ms fast response time Output: 0.5–4.5VDC @ 5V input, low power <10mA consumption Durable stainless steel body with surge protection and IP65 waterproof rating Ideal for oil, gas, and...
Stainless steel pressure transducer with G1/4" threaded interface Pressure range up to 5MPa, ideal for high-pressure monitoring High accuracy (±1.5%FS) with <2ms response time Output: 0.5–4.5VDC @ 5V input, low power <10mA consumption IP65-rated waterproof & surge-protected stainless steel body Suitable for oil, gas, hydraulic, and industrial...
Stainless steel pressure transducer with G1/4" threaded interface Pressure range up to 1.2MPa, suitable for medium-pressure systems High accuracy (±1.5%FS) with <2ms response time Output: 0.5–4.5VDC @ 5V input, low power <10mA consumption IP65-rated waterproof body with surge voltage protection Ideal for oil, gas, hydraulic, and industrial...
0.2MPa stainless steel pressure transducer with G1/4" threaded interface Designed for low-pressure measurement applications High accuracy (±1.5%FS) with <2ms fast response time Analog voltage output: 0.5–4.5VDC @ 5V input Stainless steel IP65-rated body ensures durability and water resistance Ideal for gas, oil, liquid, and industrial low-pressure...
