Clear 5mm tri-color LEDs with separate red, green and blue LED chips inside! Nice indicator, and fun to color-swirl. 60 degree viewing angle.  These are Common-Anode type which means you connect one pin to 5V or so and then tie the other three legs...

The SparkFun SGP30 Air Quality Sensor provides information on the quality of the air in your room or house by monitoring the volatile organic compounds around the sensor. The SGP30 Air Quality Sensor can return valid indoor air quality (IAQ) readings...

RS232 Communication Board, SP3232 On Board, 3V-5.5V, ESD Enhanced, Hardware Flow Control Supported Overview The RS232 Board is used for establishing RS232 communication with devices powered from 3V - 5.5V. It contains SP3232 (RS-232...

16mm Metal Annular Push Button Switch - 3-6V - Momentary - Flat Head - Green LED Ring These chrome-plated metal buttons are rugged and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you can fit these...

A pack with seven Jumbo 10mm LEDs - Blue, white, red, orange, yellow, green & RGB (tri-color)

This gearmotor is a powerful 12V brushed DC motor with a 10:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 640 counts per...

This powerful synchronous switching step-down (or buck) regulator takes an input voltage of up to 50 V and efficiently reduces it to 5 V. The board measures only 1″ × 1″ yet delivers typical maximum continuous...

This compact expansion board plugs directly into the GPIO header on a Raspberry Pi and provides an easy and low-cost solution for driving a pair of small brushed DC motors. Its pair of integrated MAX14870 motor drivers allows it to operate from 4.5 V to...

This small digital distance sensor detects objects between 0.5 cm and 15 cm (0.2″ and 6″) away. With its quick response time, small size, low current draw, and short minimum sensing distance, this sensor is a good choice...

This discrete MOSFET H-bridge motor driver enables bidirectional control of one high-power DC brushed motor. The small 1.3″ × 0.8″ board supports a wide 6.5 V to 40 V voltage range and is efficient enough...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show a single color and they don't have digital control, but that makes them smaller easier to use for...

Our popular Raspberry Pi Ultimate Kits include an assortment of components for circuit building. These are very handy components, so we've made them available as a separate item :) Included Components 2 x RGB LED 2 x Red LEDs 2 x Green LEDs 2 x...

Split core current transformer are sensors that are used for measuring alternating current. They are particularly useful for measuring whole building electricity consumption (or generation for that matter). This Split core current transformer is...

This is the BC337, an NPN silicon BJT (Bipolar Junction Transistor). This little transistor can help in your project by being used to help drive large loads or amplifying or switching applications. The BC337 is specifically rated at 50V and 800mA max...

This is a very common signal diode - 1N4148. Use this for signals up to 200mA of current. Documentation Datasheet

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil is rated up to 12V, with a minimum switching voltage of 5V. The contacts are rated up to 5A (@250VAC,...

What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed' - so to control all the seven-segment LEDs you need 14 pins...

Overview Protective Case for the 15.6inch FHD Monitor Features Dedicated protective case ONLY for use with our 15.6inch FHD Monitor Easy to install Whole body wrapped protection Folio cover stand, multi viewing angles Nice and...

An anemometer is a device used for measuring wind speed, and is a common weather station instrument. This well made anemometer is designed to sit outside and measure wind speed with ease. To use, connect the black wire to power and signal ground, the...

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straightforward to use. The two large, exposed pads function as probes for the sensor, together acting as...