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.
ESP32 Bluetooth Wi-Fi development board, support NodeMCU / Arduino DHT11 temperature and humidity sensor CP2104 communication chip USB TO TTL Micro USB port Soil probe (long) soil temperature and humidity detection module 18650 Lithium Battery Holder Powered (Battery is not included)
The ESP32C3-Pro Development Board with integrated OLED display is a compact yet powerful IoT platform built on the ESP32-C3FH4 RISC-V 32-bit processor. With 2.4 GHz WiFi (802.11 b/g/n), Bluetooth 5 (LE), and an onboard 0.96-inch OLED screen, this board is designed for advanced development, real-time data monitoring, and AIoT applications.
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The Wasing 18650 3.7V 2000mAh Lithium-ion Battery offers reliable and consistent power output for a wide range of electronic devices. Designed with safety and durability in mind, this rechargeable cell is ideal for high-drain applications such as flashlights, portable tools, DIY electronics, and battery packs.
This M3.0 Hex Brass Standoff Assortment Kit offers a comprehensive selection of single-head brass spacers, ideal for electronics, PCB prototyping, and motherboard installations. Made from high-quality brass, these standoffs provide excellent strength, corrosion resistance, and reliable electrical insulation, making them a staple in any maker or...
2.42-inch OLED display module with crisp 128×64 pixel resolution Driven by SSD1309 controller with 7-pin SPI interface Bright yellow monochrome OLED panel for high visibility Compatible with Arduino, Raspberry Pi, STM32, ESP32, Jetson Nano Ultra-narrow bezel design with onboard voltage translator at 3.3V Compact and reliable for IoT, embedded, and...
High Power MOSFET module for switching DC loads up to 15A Wide input voltage range: 5V to 36V for versatile applications Compatible with Arduino, ESP32, STM32, Raspberry Pi, and more Low Rds(on) N-channel MOSFET ensures minimal heat and power loss Built-in LED indicator for clear ON/OFF status monitoring Screw terminal connectors for secure and reliable...
The Mini RGB Bluetooth Controller is a small device that allows you to control the color and brightness of RGB LED strips via Bluetooth. It can work with DC voltage of 5V, 12V, and 24V and has a music sync feature that allows the lights to change color and brightness in sync with music. It can be used in a variety of settings such as home lighting,...
Original Espressif ESP32-DevKitC V4 development board with ESP32-WROOM-32UE Compact design with most I/O pins broken out for easy prototyping Supports Wi-Fi (802.11 b/g/n) and Bluetooth for wireless applications Operates on 3.3V to 5V, ideal for breadboards and jumper wire connections Wide temperature range: -40°C to +85°C, suitable for industrial...
This all-in-one Thread Pitch Measuring Gauge is a compact and highly practical tool designed for anyone working with fasteners. Made from durable PP (polypropylene) material, this tool is ideal for measuring the diameter, pitch, and length of most nuts, bolts, screws, and drill bits. Clearly marked with both imperial (inch) and metric (mm) scales, the...
Power your everyday electronics with confidence using Doublepow AAA 700mAh 1.2V Ni-MH Rechargeable Batteries. Designed for reliability and long-term use, these AAA-sized cells deliver stable voltage and consistent energy output for toys, remotes, digital devices, flashlights, and more. With genuine 700mAh capacity, they provide extended run times and are...
80-pin (2x40) female header strip with 2.54mm pitch spacing Double row design for compact and reliable PCB connections Can be easily cut or broken to required pin length Widely used in custom PCBs, prototyping, and Arduino projects Durable plastic and metal construction for stable connections Ideal for DIY electronics and embedded systems
2.42-inch OLED display module with sharp 128×64 resolution Powered by SSD1309 driver IC, communicates via I2C (4-pin) interface White monochrome OLED panel with 0.4 × 0.4 mm pixel size Ultra-narrow bezel design with compact 55.01 × 27.49 mm display area Compatible with Arduino, Raspberry Pi, STM32, ESP32, Jetson Nano Onboard voltage translator ensures...
High-speed CAN bus transceiver module based on TJA1050 IC Supports communication speeds up to 1 Mbps Provides reliable interface between microcontrollers and CAN bus Features short-circuit protection and strong EMC performance Compact design with screw terminals & pin headers for easy wiring Ideal for automotive, robotics, and industrial automation...
Dual-scale ruler for precise measurement in both centimeters and inches (20cm / 7 inch) Integrated PCB design tools including protractor and IC pin spacing tables Durable R-4 gold-plated metal construction ensures high wear resistance Ideal for PCB layout, component alignment, and circuit board repairs Compact, lightweight, and portable – fits perfectly...
Experience the next generation of battery convenience with the Doublepow AAA 1.5V 600mWh Rechargeable Li-ion Battery, engineered for superior performance and user-friendly charging. This high-efficiency lithium-ion cell comes equipped with a built-in USB Type-C port and smart LED indicator, allowing fast, direct charging without a separate charger....
80-pin (2x40) female header strip with 2.54mm pitch Right-angle (90°) double row design for compact PCB connections Can be cut or broken to the desired number of pins Ideal for space-saving layouts and side-entry connections Durable plastic + metal build for stable and long-lasting use Suitable for custom PCBs, Arduino, Raspberry Pi, and DIY electronics
1 Channel 12V 30A relay control board with optocoupler isolation for safe and reliable switching Supports both DC and AC control signals for wide application compatibility Capable of handling up to 220V AC loads, ideal for high-power appliances and automation projects Built-in high impedance controller pin with pull-down circuit to prevent malfunction...
Working Voltage: 5.0V Maximum Working Current: 100mA Data Interface Level: L＜0.8V, H>2.7V, maximum voltage level 3.3V Particle Measurement Range: 0.3 ~ 1.0μm; 1.0 ~ 2.5μm; 2.5 ~ 10μmNote: Please purchase this adapter board to use it with Arduino and Raspberry Pi.
Grove Vision AI V2 Kit – with Raspberry Pi OV5647 Camera & Seeed Studio XIAO Support | Dual-Core Cortex-M55 + Ethos-U55 | TensorFlow & PyTorch Compatible
Portable spot welder with OLED display and 80 adjustable speed/power levels for precision welding. Dual operation modes: automatic and manual for flexible use in various repair applications. Built-in 5000mAh lithium battery for extended operation and convenient portability. Supports nickel sheets 0.1–0.2mm thick, ideal for welding 18650, NiMH, and NiCd...
Create your own high-capacity power bank with this DIY case for 8 x 18650 batteries (not included). Dual USB outputs allow charging two devices simultaneously. Triple input ports provide flexibility for charging the power bank itself. Integrated LCD display shows charging status and battery level. Compact and portable design for convenient carrying.
