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Share a USB 3 device between two hosts or switch between two devices on one host. The bidirectional USB 3 Mux allows either a single USB device (or multiple devices when using a USB hub) to be...

The SparkFun Beginner Parts Kit is a small container of parts frequently used by beginning (or even experienced) hobbyists that gives you all of the essential through-hole components you will need to...

Looking for another way to keep your Raspberry Pi cool? Hook up this 5V Mini Cooling Fan and prevent your hard-working Pi from overheating! Of course, it's also great for use with any small computer...

This device is compatible with any 5v microcontroller. The buzzer can be installed as an alarm for any system you want and only requires three wires to get this unit up and running. When holding the...

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...

This thumbstick is an analog joystick - more accurate and sensitive than just 'directional' joysticks - with a 'press in to select' button. Since it's analog (potentiometers), you'll need two...

Nothing makes a project harder to maintain than a lot of loose wiring. That's why we like to use terminal blocks whenever making PCB-to-Wire connections. These particular 3.5mm terminal blocks are...

Connect this to that without soldering using these handy mini alligator clip test leads. 15" cables with alligator clip on each end, color coded. You get 12 pieces in 6 colors. Strong and grippy,...

Hey want to hear a really loud noise? Apply 3V to 5V to this buzzer module and you'll be rewarded with a loud 2KHz BEEEEEEEEEEEEEEEEEP. Unlike a plain piezo, this buzzer does not need an AC signal...

This Passive Buzzer provides an easy way to add sound to your electronics projects. Breadboard-friendly with a 7 mm pin pitch, it generates tones when driven with a signal. Useful for alerts,...

Continuous beep - Breadboard friendly!

This is hot! Literally! Apply 5-12VDC and the stainless steel fibers in this heating fabric will warm up, creating a little heating pad. On one hand, it's just a gigantic resistor. On the other hand,...

Listen up! This 1.1" (~30mm) diameter speaker is the perfect addition to any breadboard-based audio project where you need 8 Ohm impedance, and have 0.2W or less of power. The two pins are 15mm / 0...

Looking for another way to keep your Raspberry Pi cool? Hook up this 5V Mini Cooling Fan and prevent your hard-working Pi from overheating! Of course, it's also great for use with any small computer...