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.
The LM73100 Ideal Diode Power Protection Module is a high-efficiency solution for controlling current flow in DC power systems. Designed to replace traditional diodes, this module allows current to flow in one direction while minimizing voltage drop and power loss. Instead of the large forward voltage drop found in standard diodes, the LM73100 uses...
The STM32 NUCLEO-L476RG is a feature-rich development board based on the STM32L476RGT6 microcontroller, equipped with an ARM Cortex-M4 core running at 80 MHz. With 1 MB Flash memory and 128 KB SRAM, this board provides the power and flexibility needed for advanced embedded projects, while also offering ultra-low power performance.
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The UNIHIKER K10 AI coding board is designed for K12 STEM education and beginners, combining vision AI, voice control, and TinyML machine learning in one compact device. This AI learning coding board features a 2.8-inch color display, dual wireless connectivity (Wi-Fi/Bluetooth), and a comprehensive sensor suite including a 2MP camera, microphone,...
18650 Single Battery Cell Spacer/Holder for assembling cylindrical Li-ion battery packs. Made from flame-retardant ABS/PC plastic with excellent heat and impact resistance. Interlocking edge design allows flexible battery pack configurations. Ensures safe, stable, and vibration-resistant battery pack assembly. Perfect for eBike, power tool, and DIY...
Female to female threaded for secure PCB and machine board mounting Hex head design allows for easy tightening with a wrench Ideal for creating space between circuit boards Brass construction offers durability and corrosion resistance Available in 30mm length with M3 threads
Automatic PC restart on blue screen, crash, or system freeze Double-relay version with program, website, and video card monitoring Supports scheduled restarts and forced power-off restarts Ideal for mining rigs, servers, gaming PCs, and monitoring systems Easy driver installation with customizable watchdog software Run log query and auto power-on after...
The CJMCU-2557 is a nano-power energy harvesting power management module based on the Texas Instruments BQ25570 IC. It is designed to efficiently collect, store, and regulate energy from ultra-low-power sources such as solar cells and thermoelectric generators. This module enables long-term operation of battery-powered or capacitor-powered devices where...
High-performance microcontroller board with AI capabilities, image processing, WiFi, Bluetooth, and rich interfaces. Ideal for smart home and multimedia applications.DFRobot SKU: DFR1172
The STM32 NUCLEO-F303RE is a versatile development board powered by the STM32F303RET6 microcontroller, featuring an ARM Cortex-M4 core running at 72 MHz, with 512 KB Flash and 80 KB SRAM. Designed for flexibility, it is Arduino Uno Rev3 compatible and works seamlessly with popular development platforms such as mbed.org, Keil, IAR, and GCC-based toolchains.
Female to female threaded for secure PCB and machine board mounting Hex head design allows for easy tightening with a wrench Ideal for creating space between circuit boards Brass construction offers durability and corrosion resistance Available in 35mm length with M3 threads
Dual-channel digital isolator module with iCoupler® technology Provides safe, reliable electrical isolation like an optocoupler Supports bidirectional logic level conversion between 3.3V and 5V systems High-speed data transmission with low power consumption Compact design ideal for embedded, industrial, and communication systems Excellent for...
940nm laser classified as class 1 under operation condition by IEC 60825-1:2014-3rd edition Small ceramic package(20×13.2×2.0mm) Long range absolute range measurement up to 1.8m within 5% accuracy at indoor
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Durable plastic body 6-AA battery holder included two brushed DC motors with 210 mA free run and 2.4 A stall current at 7.2 V maximum speed of 6 in/s (15 cm/s) at 7.2 V
The LM66200 Ideal Dual Diodes Breakout Module is a compact and efficient solution for intelligent power-path selection in systems that require automatic or controlled switching between two power sources. It is ideal for applications such as dual power supply selection, USB OTG power switching, battery backup systems, and load sharing.
A compact IoT board with a RISC-V processor supports Wi-Fi 6, Bluetooth 5, Zigbee, and Thread, ideal for smart home applications and wearable devices.DFRobot SKU: DFR1117
The STM32 NUCLEO-L432KC is a compact and powerful development board based on the STM32L432KCU6 microcontroller, featuring an ARM Cortex-M4 core running at 80 MHz. With 256 KB of Flash memory, 64 KB of SRAM, and built-in protection mechanisms, it provides an excellent platform for low-power and high-performance embedded applications.
2S Round Lithium Battery Charging Protection Board for 7.4V battery packs Supports up to 5A continuous discharge current Built-in overcharge, over-discharge & short-circuit protection Integrated balanced charging function (up to 60mA per cell) Compact round design ideal for space-constrained battery packs Suitable for Li-ion and Li-Po 2S battery...
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Output Temperature: 200-480 degree Celsius Output Power:25W - 60W This product is available in Yellow/Blue or Black. The color will be selected randomly for your order.
XH-W1219 digital temperature controller for heating & cooling applications Dual 3-digit displays show real-time temperature and trigger point simultaneously Wide temperature sensing range: -30°C to +110°C with 0.1°C accuracy Adjustable settings: trigger temperature, hysteresis, delay, correction & alarm Relay supports 120VAC @ 10A or 14VDC @ 10A...
Practical OP AMP tester board for single & dual operational amplifier ICs Supports popular ICs: LM741, LM358, NE5532, TL071, OP07, and more Compact PCB with onboard passive components for accurate testing Quickly evaluate gain, frequency response, and signal behavior Ideal for engineers, students, and hobbyists for prototyping & learning Easy...
The WeAct Studio Mini PD Adjustable Power Supply V1 is a compact, high-precision USB-PD / QC programmable buck (step-down) power module, designed for developers, engineers, and electronics enthusiasts. It supports DC input up to 24V, USB-PD 20V, and QC 12V, delivering a stable and adjustable output suitable for testing, prototyping, and embedded system...
The M5StickC Plus2 is a compact and powerful IoT development board built around the ESP32-PICO-V3-02 dual-core processor. Designed for creativity and portability, it integrates Wi-Fi and Bluetooth connectivity, a 1.14-inch TFT LCD display, microphone, RTC, IMU sensor, and built-in rechargeable battery—all within a pocket-sized enclosure. The M5StickC...
The STM32 NUCLEO-F103RB is a versatile development board based on the STM32F103RBT6 microcontroller, featuring a 32-bit ARM Cortex-M3 core running at 72 MHz. With 128 KB Flash memory and 20 KB SRAM, this board delivers solid performance for a wide range of embedded applications.
The WeAct STM32G431CBU6 is a powerful and compact development board built around the STM32G431 series microcontroller from STMicroelectronics. Featuring the ARM Cortex-M4 core running at up to 170MHz, this board offers exceptional performance and a rich set of peripherals, making it a perfect platform for embedded systems learning, prototyping, and...
