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.
AD7705 16-Bit ADC Module for high-precision analog signal conversion Dual-channel input supporting differential and single-ended measurements SPI communication interface for easy microcontroller integration Programmable gain, polarity, and update rate via software Integrated RC filter and voltage divider for stable signal acquisition Ideal for industrial...
Nebulizer Ultra Fine Mist Maker Humidifier USB Driver Board Circuit Generates 5µm ultra-fine mist with 740 spray holes for efficient humidification Low voltage (DC 5V), low power (2W), and high conversion efficiency design Oxidation-resistant silver-coated atomizing sheet for long lifespan Compact, lightweight, eco-friendly, and easy USB power operation...
Non-contact detection Suitable for liquids of various densities and forms Easy installation for all kinds of detection occasions Compatible with containers of various materials and thicknesses Reliable performance with anti-interference ability
1-Channel 12V Relay Module for switching high-voltage loads Selectable High or Low level trigger via onboard jumper Supports up to 10A at 250VAC / 30VDC load capacity Compatible with 3.3V and 5V logic systems Screw terminal block for secure load connection Built-in freewheeling diode and LED status indicator
Onboard precision microcurrent transformer. Onboard sampling resistor. The module can measure AC currents less than 5A, the corresponding analog output 5A/5mA. Rated input current: 5A Rated output current: 5mA Change: 1000: 1 The linear range: 0 ~ 10A (100 ohms) Linearity: 0.2%
This compact Feather-format development board is built around the RP2040 microcontroller and includes both a USB-C device port and a USB Type-A host port. The host port allows you to connect USB peripherals such as flash drives, keyboards, HID devices, or other microcontrollers, enabling advanced project possibilities in a small and efficient footprint....
XHM542 High Power Digital Audio Amplifier with TPA3116D2 chip for powerful mono output Delivers up to 100W output power for 2Ω–8Ω speakers Wide operating voltage range DC 12V–26V (24V recommended) High 100dB signal-to-oise ratio for crystal-clear sound Compact size (79mm × 54mm) ideal for DIY and space-limited projects High efficiency, low distortion...
ADS1232 24-Bit ADC Module for ultra-precise load cell and sensor measurement High-resolution 24-bit analog-to-digital conversion for accurate low-level signals Wide operating voltage 2.7V–5.3V for flexible system integration Integrated low-noise amplifier with programmable gain control Built-in internal oscillator – no external crystal required Low power...
Optical Endstop Switch with 1m cable for 3D printers and IR beam applications Detects travel limits, object presence, or beam interruptions reliably Integrated green LED indicator lights when beam is broken Compatible with both 3.3V and 5V logic systems 100cm 24AWG cable with 3-pin 2.54mm JST connectors for easy integration Ideal for 3D printers, security...
Visualize magnetic fields with ease using the field paper Large size of 100mm x 100mm for a clear and detailed view Micro-encapsulated film enables visualization of magnetic fields Suitable for use with any magnet Lightweight and compact for easy handling and storage
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High-power 250W DC-DC Buck Converter with XL4016 IC Adjustable output voltage: 1.25V to 36V (precise control) Continuous 5A current, peak up to 8A for short duration Built-in green digital voltmeter display for easy monitoring Input voltage range: 5V to 40V, wide compatibility for projects Overcurrent limiting & thermal protection for safe operation
Compact XL4015-based DC-DC buck converter with current & voltage control Built-in LED display for real-time voltage and current monitoring Adjustable output voltage (0.8V – 29V) and current limit setting Handles up to 5A with cooling (3A without cooling) Wide input voltage range: 5V – 30V, ideal for battery charging, LED driving, or lab supply use...
Photoelectric switch sensor DC 10-30V power supply Working current: 200mA Induction distance: 5-30cm Response time: 1ms Output form: DC three-wire normally open NPN NO Detection object: Transparent / opaque object
The NAU7802 24-bit ADC module is a high-resolution differential analog-to-digital converter designed for precise measurement applications. With built-in gain and calibration circuitry, it is especially well-suited for use with strain gauges, load cells, and Wheatstone bridge sensors.
High-efficiency LTC1871-based DC-DC boost converter module with display. Achieves up to 96.4% efficiency using advanced MOSFET on-resistance detection. Supports wide voltage operation, delivering up to 128W output power when input/output >20V. Built with low ESR capacitors for reduced ripple and stable performance. Features imported MOSFETs, Schottky...
34mm Mini Car N20 Motor Rubber Wheel with lightweight durable design Compatible with N20 Micro-Gear DC Motors (D-shaft 3mm) High-grip rubber tire ensures smooth and stable movement Compact and lightweight (only 3.2g) – perfect for mini robots 6.5mm tire width provides balance between traction and efficiency Ideal for DIY hobby projects, robotics kits, and...
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
6-channel PWM digital servo controller Supports a wide variety of PWM servos High-accuracy potentiometer for precise servo control Servo reset function 0.09° control accuracy 3-channel overcurrent protection Compact and lightweight design
The SIM800A Wireless Module is a compact, industrial-grade GSM/GPRS communication module that supports quad-band GSM900/1800MHz operation. It provides reliable GSM voice, SMS, and GPRS data transmission, making it ideal for a wide range of remote communication and IoT applications. This module is optimized with an efficient power design, ESD protection,...
5V DC electromagnet with strong 25Kg holding force Operates at 0.6A current draw, efficient and compact Approximate lifting capacity: 5Kg on flat ferromagnetic surfaces Instant magnetic control – turns on/off with power supply Ideal for robotics, automation, locks, and DIY projects Durable P40/20 size design with reliable performance
Based on the semiconductor LM35 temperature sensor Can be used to detect ambient air temperature Calibrated directly in °Celsius (Centigrade) Linear + 10 mV/°C Scale Factor 0.5°C Ensure accuracy (at +25°C) Low power consumption, less than 60uA Low output impedance, 1mA current through only 0.1Ω With screw holes for easy installation and fixed. Aperture...
Bluetooth v4.0 module. It works with voltage from 3.3 V to 5 V, it communicates over a serial UART interface (RX, TX pins), it supports the AT command. Maximum transmitter power is +6 dBm, the receiver sensitivity is -23 dBm. It has a built-in voltage converter so it can work in the standard of 3.3 V and 5 V.You can’t detect it using your phone’s regular...
Compact 5V DC electromagnet with 10Kg (22lb) holding force Easy to control: becomes magnetic when powered, demagnetizes when off Works best on flat ferromagnetic surfaces for strong grip Operates safely at 4–6V DC with ~0.6A current draw Ideal for DIY, robotics, locks, and automation projects Durable P30/22 form factor with reliable build for repeated use
