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Showing 21-40 of 50 products · 10 unavailable products hidden
Magnet Wire Kit
A set of three common gauges of enameled magnet wire for winding transformers, chokes, motors, and electromagnet experiments. The thin enamel coating insulates each wire, allowing tight coil windings without short circuits. Includes 22, 26, and 30 AWG spools — giving you the right gauge for a ra...
4xAA battery holder (square)
A simple 4-cell AA battery holder in a square (2×2) configuration. Features 5-inch tinned leads for easy soldering into your project. Provides 6V nominal output with four AA alkaline batteries, or 4.8V with rechargeable NiMH cells. Specifications Battery Type – AA (LR6) Cell Count – 4 Config...
DFRobot SEN0713 RS485 Chlorophyll Water Quality Sensor
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This industrial-grade chlorophyll sensor measures chlorophyll concentration in water using the fluorescence principle, making it useful for algae monitoring in rivers, lakes, ponds, aquaculture systems and field research sites.The probe and housing are integrated into a single waterproof unit, wi...
4015 3-Phase BLDC Motor with AS5600 Encoder
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This compact 4015 BLDC motor combines a high-torque outer rotor motor with a factory-integrated AS5600 magnetic encoder, making it a neat motion-control package for robotics and precision motion projects.It is designed for Field-Oriented Control (FOC), also known as vector control, to support smo...
Gravity: Digital Hall Sensor
INTRODUCTION what's the best way to detect the magnet? Use anther magnet. But it's not sensitive enough. You have to feel it by youself.Right! This Hall sensor knows whether there is a magnetic object nearby or not. And it correctly tells you through ditigal output.See ...
Magnet Disk - 0.709
This is your standard fridge magnet, perfect for holding up quite a bit of weight. Grade C8, ceramic disk magnet. Magnetization is throughout the thickness of the magnet. We used this part with the SparkFun flame kits found at our various workshops. Attachable with double stick tape or hot-glue.D...
5K Spectrol 25 Turn Trimpot
This 5KΩ Spectrol trimpot is an industrial-quality sealed multi-turn trimmer potentiometer. With 25 turns of adjustment range, it provides precise resistance setting far beyond what a single-turn pot can achieve — ideal for calibration, offset trimming, and fine-tuning analogue circuits. Key Fea...
Resistor Grab Bag (pack of 580)
580 resistors (29 values, 20 pieces of each) go into this great starter pack (or refill!) with a wide range of useful values. The kit contains 20 each of:10Ω22Ω47Ω68Ω100Ω120Ω150Ω180Ω220Ω270Ω330Ω470Ω560Ω680Ω1kΩ1.2kΩ1.5kΩ1.8kΩ2.2kΩ2.7kΩ3.3kΩ4.7kΩ5.6kΩ6.8kΩ8.2kΩ10kΩ22kΩ47kΩ100kΩ Rated for&nb...
Gravity: I2C 4-20mA DAC Module (Arduino Compatible)
The Gravity I2C 4-20mA DAC Module outputs 0–25 mA of current controlled via I2C, with high-accuracy 4–20 mA output available after calibration (0.2% linearity error). Built around the GP8302 chip, it provides 12-bit resolution and is compatible with Arduino, enabling precise current-loop control ...
Enameled Copper Magnet Wire – 11 meters / 0.1mm diameter
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For winding custom coils, or very fine-pitch rework, we always reach for magnet wire. Magnet wire is very very thin (0.1mm diameter!) copper wire with a very thin layer of insulation. It's used for a range of electronics, hacking and making applications. Commonly these are used for winding tra...
Hall effect sensor [US5881LUA]
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Hall effect sensors detect whether a magnet is near. Useful for non-contact/waterproof type switches, position sensors, rotary/shaft encoders. I tried dozens of different hall effect sensors to see which one would work best for the SpokePOV kit (to determine the wheel location) and this one...
RS485 Wind Speed Transmitter
This wind speed sensor is a professional meteorological instrument used to measure horizontal wind speed within 0~32.4m/s. It integrates a hall sensor inside. The shell and wind cups are made of aluminum alloy material and use special mold precision die casting process, featuring small dimension ...
Alphabet LED Filament - Warm White Letter "D"
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A warm-white LED filament shaped as the letter "D", made from COB (chip on board) LEDs — the same technology found in Edison-style LED bulbs. Dozens of micro LED diodes are bonded onto a thin metal backing and coated in silicone, producing a bright, uniform glow from both sides. Lightweight and ...
RS485 Photosynthetically Active Radiation (PAR) Sensor (400-700nm)
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The RS485 PAR Sensor measures photosynthetically active radiation in the 400–700 nm wavelength range — the light spectrum that plants use for photosynthesis. It converts incident radiation into a signal proportional to light intensity, with cosine-corrected angular response for accurate readings ...
MicroMod STM32F405 Processor Board
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This compact MicroMod processor board adds an STM32F405 to a compatible MicroMod Carrier Board, giving your project an ARM® Cortex®-M4 32-bit RISC core in a small, swappable M.2 module.The bevelled edge connector keys into the MicroMod M.2 socket and is secured with the screw supplied with MicroM...
RS485 Ultraviolet (UV) Intensity Measure Sensor (290-390nm, UVA, UVB)
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An industrial-grade RS485 UV sensor that measures ultraviolet intensity (0–15 mW/cm²) and UV index (0–15) across the 290–390 nm wavelength range, covering both UVA and UVB bands. It communicates via the Modbus-RTU protocol over RS485, making it easy to integrate with Arduino and other microcontro...
Adafruit MPRLS Ported Pressure Sensor Breakout - 0 to 25 PSI
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The Adafruit MPRLS Ported Pressure Sensor Breakout measures absolute air pressure from 0 to 25 PSI (0–172 kPa) via a stainless steel port. Unlike typical barometric sensors, the metal port lets you attach tubing to measure pressure inside sealed spaces — ideal for DIY assistive technology, vacuum...
RS485 Temperature Humidity Sensor
This industrial-grade RS485 temperature and humidity sensor features a high-precision digital transducer in a rugged aluminium alloy housing. With a wide measurement range and Modbus RTU communication, it's designed for integration into building automation, HVAC systems, and environmental monitor...
20W Adjustable DC-DC Buck Converter with Digital Display
A 20W adjustable DC-DC buck converter module based on the LM2596 step-down regulator, featuring a built-in digital display that shows the output voltage in real time. Adjust the output from 1.25V to 37V using the onboard potentiometer — no multimeter needed. Wire terminals mean no soldering is re...
GNSS Multi-Band L1/L2/L5 Helical Antenna (SMA)
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The SPK-6E is a compact, lightweight tri-band helical GNSS antenna supporting L1, L2, and L5 frequencies across GPS, GLONASS, Galileo, and BeiDou constellations. Weighing just 18.1 g with a standard SMA connector, it's designed for aerial, portable, and clear-sky applications. The antenna includ...