cards & micros

Need to put your finger on the pulse of the Earth? Did I just blow your mind? A geophone works by translating ground movement into voltage, which ...

The SparkFun 8-Pin SOIC to DIP Adapter is a small PCB that lets you adapt SOIC packages into a DIP footprint. These tiny boards are useful for mod...

MOSFETs are awesome. They're like a switch that you flip electronically! This MOSFET Power Controller makes it easy to switch a battery supply on ...

The TLC5940 is a 16 channel PWM unit with 12 bit duty cycle control (0-4095), 6 bit current limit control (0-63), and a daisy chainable serial i...

The SparkFun MP3 Player Shield is an awesome MP3 decoder with the capabilities of storing music files onto a run-of-the-mill microSD card, thus gi...

This small breakout board pairs an Electret microphone (100Hz–10kHz) with a 60x mic preamplifier to amplify the sounds of voice, claps, door knocks...

This buzzer is an add-on for your RedBot that gives your robot the ability to make awesome beep-boop noises or alerts when something interesting (...

The SparkFun Multiplexer Breakout provides access to all pins and features of the 74HC4051, an 8-channel analog multiplexer/demultiplexer. The 74H...

You don't have the power? Well, there's no need to ask Scotty – the SparkFun Benchtop Power Board Kit has your back. This board will let you take ...

This is the SparkFun RJ11 Breakout, two simple breakout boards for the common 6-pin RJ11 connector. These little boards can easily have one of our ...

This 3KHz Piezo Alarm is a great option for when you need a loud audible alarm (or are just looking for a way to prank your friends). This alarm pr...

This board allows you to interface with your car's OBD-II bus. It provides you a serial interface using the ELM327 command set and supports all ma...

The SparkFun Serial Basic Breakout is an easy-to-use USB-to-Serial adapter based on the CH340G IC from WCH. It works with 5V and 3.3V systems and s...

This is SparkFun Beefy 3 FTDI Basic Breakout for the FTDI FT231X USB to serial IC. The pinout of this board matches the FTDI cable to work with off...

This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only for harvesting piezo...

This is the SparkFun Rotary Switch Breakout, a very simple board designed to easily provide you access to each pin on our 10-position rotary switc...

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for...

We all know the BeagleBone Black is pretty great, but wouldn't it be nice to create personal capes based on your needs? The BeagleBone Black Proto...

The FTDI SmartBasic is a variation on our classic FTDI Basic board which allows you to connect a second device to the hardware serial port on an Ar...

The Logomatic v2 takes everything we learned with multiple logging projects over the years and boils it down to an easy to use device, that is now ...

The SparkFun Big Red Box Proto Board is a large, custom made PCB that has been specifically designed to be used with and installed into our Big Re...

The ATMega 32U4 is an 8-bit AVR microcontroller featuring 32KB self-programming flash program memory, 2.5KB SRAM, 1KB EEPROM and a 12-channel 10-bi...

This is a more universal GPS breakout board that uses a vertical SMD connector which is perfect for the GP-635T GPS receiver that we sell. It featu...

The SparkFun Rotary Switch Potentiometer Breakout is a small board that allows you to add resistors to a 10-position rotary switch, turning it into...