Components

This ball caster is an improved version of our original Pololu Ball Caster with 1″ Plastic Ball; we recommend this new version over the older versi...

These terminal blocks have terminals that hold and release wires through the simple adjustment of a screw, allowing you to easily make temporary co...

Never get frustrated with 2mm-pitch modules again! Each one of these 40-pin break-apart header packs contains 5 pieces of 40-pin, 2mm pitch headers...

Surface mount device , SMD, resistors are the most widely used electronic component. They're designed to have small metal tabs that could be dir...

These are small rare earth magnets - 3/16" rings. Composed of Neodymium/Iron/Boron (NdFeB), these magnets are curiously strong and make for a great...

Make some beautiful colors with these diffused rectangular 2.5mm x 5mm RGB LEDs with separate red, green and blue LED chips inside! They make nice ...

These are 8mm (0.31") ball bearings. They will fit on 8mm (0.31") rods.​ SPECIFICATIONS Model:688zz Inner diameter:8mm (0....

Surface mount 3-way switch. These switches are commonly found on handheld devices like MP3 players. This switch allows the user to navigate using u...

These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictures to get an idea of the...

1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 1.0M resistors make excellent pull-ups, pull-dow...

2500mAh 1.2V Nickel Metal Hydride rechargeable ‘AA’ batteries. NiMH technology provides all the benefits of NiCads without the toxic ingredients an...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds ...

These are standard 0.1" spaced header pins that can be surface mounted for applications where through-hole pins won’t work. The surface mount si...

The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different ch...

Standard HD44780 LCDs are useful for creating standalone projects. 20 characters wide, 4 rows White text on blue background Connection port is 0.1"...

These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. Simply apply 5VDC to the ...

This 10W super bright LED can be used as a flash searchlight for your robot projects. It consists of 9 separate LEDs and has a luminance o...

This connector is a single-row, 8-pin, straight female header strip designed to match 0.1" male headers. The order quantity must be a multiple of ...

Put your project in stealth mode with these silent Soft Tactile Switch Buttons.  Tactile switches are standard input "buttons" on electronic pro...

This is an IC Test Clip for 8-pin small outline integrated circuits (SOIC). This test clip assures a secure connection to all chip leads on an 8-pi...

This plastic knob accepts a 6mm shaft and has a 15mm outer diameter. They simple press-fit onto a shaft. These are clear so that they can be used w...

Female header is like the duct tape of electronics. Its great for connecting things together, soldering to perf-boards, sockets for wires or bre...

These digital (LH) British Telecom connectors are primarily used by our English friends across the pond but here at SparkFun we like to use them...

If you want to make a kit you'll need some solder. This 0.1 lb (about 50 grams) spool is a good amount, not too much (like 1 lb spools) and not too...