Electrical Engineering

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

Switch Basics

May 7, 2013

A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.

Resistors

April 1, 2013

A tutorial on all things resistors. What is a resistor, how do they behave in parallel/series, decoding the resistor color codes, and resistor applications.

Pulse Width Modulation

February 27, 2013

An introduction to the concept of Pulse Width Modulation.

Voltage Dividers

February 8, 2013

Turn a large voltage into a smaller one with voltage dividers.

Working with Wire

February 8, 2013

How to strip, crimp and work with wire.

Analog to Digital Conversion

February 7, 2013

The world is analog. Use analog to digital conversion to help digital devices interpret the world.

How to Power a Project

February 7, 2013

A tutorial to help figure out the power requirements of your project.

What is a Circuit?

February 6, 2013

Every electrical project starts with a circuit. Don't know what a circuit is? We're here to help.

Battery Technologies

February 6, 2013

The basics behind the batteries used in portable electronic devices: LiPo, NiMH, coin cells, and alkaline.

Voltage, Current, Resistance, and Ohm's Law

February 6, 2013

Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.

Pull-up Resistors

February 1, 2013

A quick introduction to pull-up resistors - whey they're important, and how/when to use them.

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Please be aware that the tutorials you find there are no longer actively maintained.