Sparkfun

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25\" shaft with a...

An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND...

These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essent...

These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essent...

These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essent...

We all know that you can never get too many LEDs. Don\'t worry, we\'ve got you covered. This is a pack of 25 LEDs all conveniently packaged in a ni...

We all know that you can never get too many LEDs. Don\'t worry, we\'ve got you covered. This is a pack of 25 LEDs all conveniently packaged in a ni...

We all know that you can never get too many LEDs. Don\'t worry, we\'ve got you covered. This is a pack of 25 LEDs all conveniently packaged in a ni...

There are lots of trimpots out there. Some are very large, some so small they require a screwdriver. Here at SparkFun, we just needed a simple one ...

This is a 5mm PTH fuse clip intended to be used with our Glass Fuses. **Note: **These are sold in single units. If you intend to secure a fuse usi...

This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 125VAC, up to 5A. Fuses are pretty simple, if more ...

Sharp\'s GP2Y1010AU0F is an optical air quality sensor, designed to sense dust particles. An infrared emitting diode and a phototransistor are diag...

We all know that you can never get too many LEDs. Don\'t worry, we\'ve got you covered. This is a pack of 25 LEDs all conveniently packaged in a ni...

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very standa...

This is a simple SPDT slide switch - great for use as an ON/OFF button, or just as a general control switch. The pins are spaced by 0.1\", however ...

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very basi...

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very basi...

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very basi...

The STA540 from STMicro is a 4-channel, [class AB](http://en.wikipedia.org/wiki/Electronic_amplifier#Class_B_and_AB) audio amplifier designed for h...

The QRE1113 is a small IR reflectance sensor. This sensor is often used in line following robots because, if it can sense if a surface is white or ...

This is a 3-terminal microswitch, with a small push-button. This switch has a great \'clicky\' sound to it, and a nice tactile feel. **Features:**...

This is a basic, 4-digit 7-segment display - red in color. It has a common anode. The display features one decimal point per digit, and individuall...

This is a basic, 4-digit 7-segment display - green in color. It has a common anode. The display features one decimal point per digit, and individua...

This is a basic, 4-digit 7-segment display - blue in color. It has a common anode. The display features one decimal point per digit, and individual...