The SN74HC595N is a simple 8-bit shift register IC. Simply put, this shift register is a device that allows additional inputs or outputs to be added to a microcontroller by converting data between parallel and serial formats. Your chosen microprocessor...

Your power supply problems just got SUPER SOLVED! This 3.3V Buck Converter Breakout board is great for supplying power to low voltage circuits from a single Li-Ion cell battery or USB power.  This chip provides up to 600-mA...

PowerBoost is the perfect power supply for your portable project! This little DC/DC boost converter module can run from 1.8V batteries or higher, and convert that voltage to 5.2V DC for running your 5V projects. Like our popular 5V 1A USB wall...

The SparkFun Sound Detector is a small and very easy to use audio sensing board with three different outputs. The Sound Detector not only provides an audio output, but also a binary indication of the presence of sound, and an analog representation of its...

We have no idea what USB device you are hooking up to, but if you want to access the microUSB port on something, you might want this. We broke out all 5 pins with a vertical microUSB connector for your prototyping needs. Documents: Schematic Eagle Files...

Resistors are a good thing, in fact, they're actually crucial in a lot of circuit designs. The only problem seems to be that resistors disappear into thin air. The only way to be sure that you're gonna have the resistor you need when you need it is to...

A stepper motor to satisfy all your robotics needs! This 4-wire bipolar stepper has 1.8° per step for smooth motion and a nice holding torque. The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit...

Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center of the coil. This makes the solenoid able to pull (from...

Add Internet to your next project with an adorable, bite-sized WiFi microcontroller, at a price you like! The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) and TCP/IP stack with...

The SparkFun Large Digit Driver is a chainable controller backpack that can be soldered directly to the back of a large 6.5" 7-segment displays. Large numerical displays are a great addition to any project where you want to be able to see information at...

This is an open sourced ISP (In-System Programming) programmer available from http://www.fischl.de/usbasp/.This is provided as an accessory to MicroHOPE due to several reasons. If you want to develop programs that uses the UART of Atmega32, you need to...

This rotary encoder is the best of the best, its a high quality 24-pulse encoder, with detents and a nice feel. It is panel mountable for placement in a box, or you can plug it into a breadboard (just cut/bend the two mechanical side tabs.) We also...

Spring terminal blocks will simplify your wiring and make your project more rugged. Instead of soldering wires to your perf board, solder in these 0.1" pitch terminal blocks. There's a little spring contact so you can pull back on the plastic bit and...

An IC (Integrated Circuit) socket allows you to insert and remove chips easily from an assembled kit or project This item contains 3 of the 8 pin 0.3" wide version. Best used with chips that have 8 pins (2x4) and have 0.3" pin spacing. These are often...

Non-invasive current transformer, use this sensor clip to build your own Personal Energy Monitor . Model: T17－05 Note:Color might change due to different batchs.  

These chrome-plated metal buttons are rugged and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you can fit these in place, there's even a rubber gasket to keep water out of the enclosure. On the front of...

An IC (Integrated Circuit) socket allows you to insert and remove chips easily from an assembled kit or project This item contains 3 of the 28 pin 0.6" wide version. Best used with chips that have 28 pins (2x14) and have 0.6" pin spacing. We also have 0...

The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple...

Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire...

Make your own USB connections without slicing apart a USB cable and soldering those thin wires inside. These DIY "USB shells" are available in USB A plug, micro B, mini B and USB A socket. Each shell comes with a two-part snap plastic shell and a proper...