Alligator clips (or Crocodile clips, if you prefer) are likely to be the most useful thing on your workbench besides the workbench itself. Whether you’re just trying to make a few quick connections to test your circuit or having trouble...

This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor’s resistance. Pressing lightly, the resistance changes from infinite to ~300k. The sensor itself is thin and flexible, but the resistance does...

The SparkFun Mini GPS Shield equips your Arduino Mini with access to a GPS module, µSD memory card socket and all of the other peripherals you’ll need to turn your Arduino into a position-tracking, speed-monitoring, altitude-observing...

The SparkFun Serial Controlled Motor Driver (SCMD) is a DC motor driver that’s been designed to drive small DC motors with ease. The SCMD is designed to emulate a typical register-based device in operation. It can be commanded by UART, I...

This is an interface cable for the Bus Pirate , designed to connect to its 2x5 I/O header. The cable’s connector is composed of two rows of five 0.1" spaced pins; it’s also polarized, as is the mating connector on-board the Bus Pirate,...

The Bus Pirate v3.6a, created by Ian Lesnet , is a troubleshooting tool that communicates between a PC and any embedded device over 1-wire, 2-wire, 3-wire, UART, I 2 C, SPI, and HD44780 LCD protocols - all at voltages from 0-5.5VDC. This...

Need range? 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. This antenna mates nicely with the Reverse Polarized SMA Connector. Dimensions: 0.5x7.7"

At SparkFun we use many Arduinos and we’re always looking for the simplest, most stable one. Each board is a bit different and no one board has everything we want, so we decided to make our own version that combines all our favorite...

A simple flex sensor 4.5" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the original Nintendo Power Glove . I love the...

The SparkFun Photon Weather Shield is an easy-to-use add-on board that grants you access to barometric pressure, relative humidity, and temperature. There are also connections on this shield to optional sensors such as wind speed,...

This is a 12 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that...

The CY7C65213 USB to UART serial breakout is designed to provide users with a means to access all available I/O pins on the IC, and to provide a 6-pin UART header that is compatible with other SparkFun breakout boards. This breakout has...