Electrical Engineering

These tutorials help form some of the fundamentals you would learn in an Electrical Engineering course of study.

New!

Multiplexer Breakout Hookup Guide

August 18, 2016

How to use the 74HC4051 multiplexer breakout to drive eight LEDs, read eight button inputs, or monitor eight potentiometers.

Measuring Internal Resistance of Batteries

May 5, 2016

Classroom STEM activity that has students build a battery from a lemon, measure the open and closed circuit voltages, and determine the battery's internal resistance.

What is a Battery?

May 3, 2016

An overview of the inner workings of a battery and how it was invented.

Boss Alarm

March 30, 2016

Build a Boss Alarm that alerts you of anyone walking into your office and automatically changes your computer screen.

RedStick Hookup Guide

January 28, 2016

Learn about the SparkFun RedStick, a USB thumb drive-sized Arduino-compatible development platform.

Discrete Semiconductor Kit Identification Guide

November 19, 2015

Get to know the contents of the SparkFun Discrete Semiconductor Kit.

8-Pin SOIC to DIP Adapter Hookup Guide

August 13, 2015

Assembly and application of the 8-pin SOIC-to-DIP adapter.

microSD Sniffer Hookup Guide

August 4, 2015

A basic introduction to working with the microSD Sniffer.

How to Use a Multimeter

January 9, 2015

Learn the basics of using a multimeter to measure continuity, voltage, resistance and current.

General Guide to SparkFun Blocks for Intel® Edison

January 5, 2015

A general guide for using SparkFun Blocks for Intel® Edison in your next project!

SparkPunk Sequencer Hookup Guide

August 14, 2014

How to assemble and use the SparkPunk Sequencer kit.

SparkPunk Sequencer Theory and Applications Guide

August 14, 2014

Examine the inner workings of the SparkPunk Sequencer, then explore some modifications and alternate applications.

Transistors

July 1, 2014

A crash course in bi-polar junction transistors. Learn how transistors work and in which circuits we use them.

Soil moisture-sensing by hacking a solar light

June 19, 2014

How to take a solar powered pathway light from a hardware store and make it into a crude soil moisture sensor.

SparkPunk Hookup Guide

June 12, 2014

How to assemble and modify the SparkPunk Sound Generator kit.

Uh-Oh Battery Level Indicator Hookup Guide

April 9, 2014

Learn how to assemble and use the Uh-Oh Battery Level Indicator Kit.

LogicBlocks Experiment Guide

March 31, 2014

Experiments guide for the LogicBlocks kit. Build oscillators, latches, multiplexers and more with the LogicBlocks.

LogicBlocks & Digital Logic Introduction

March 31, 2014

Introducing fundamental digital logic concepts and LogicBlocks

Make Your Own Fritzing Parts

March 18, 2014

Learn how to create your own Fritzing part so you can make amazing looking wiring diagrams, learn about schematics and PCB design, and get your design fabbed into a real PCB with Fritzing's PCB manufacturing service.

How to Use an Oscilloscope

February 25, 2014

How to work the dials and buttons on an oscilloscope, and a glossary of the o-scope lexicon.

Recreating Classic Electronics Kits

January 13, 2014

100-in-1? 500-in-1? It's up to you when you build your own Science Fair style experiment board!

Constant Innovation in Quality Control

December 11, 2013

In this article, we share our recent advancements in quality control. Every new product we design and manufacture here at SparkFun gets a custom testing apparatus that is designed and built in house. Along with making our tests more thorough, we have also made them more efficient and robust.

Digital Logic

October 3, 2013

A primer on digital logic concepts in hardware and software.

Old Tutorials

Looking for the old, archived tutorials? Head on over to the archived tutorials on the main SparkFun site.
Please be aware that the tutorials you find there are no longer actively maintained.