Components

Reading and Writing Serial EEPROMs

August 11, 2017

EEPROM is a great way to add extra memory to your microcontroller project. Wait 'til you see how easy it is to use!

Qwiic EEPROM Hookup Guide

July 29, 2021

Running out of memory? Don't forget to check out the Qwiic EEPROM!

Qwiic MUX Hookup Guide

July 19, 2018

Have a bunch of sensors with the same I2C address? Put them on the Qwiic MUX (TCA9548A) to get them all talking on the same bus!

Qwiic MultiPort Hookup Guide

April 1, 2021

The SparkFun Qwiic MultiPort adds additional ports to boards that have only one Qwiic port on their I2C bus. Once added, you can use it as a hub to add as many I2C devices to the bus as you need! You can also use the board as an alternative to a daisy chained configuration.

Qwiic 12-Bit ADC Hookup Guide

May 23, 2019

Need to add more analog inputs for your project? Check out the Qwiic 12-bit ADC.

Integrated Circuits

July 15, 2013

An introduction to integrated circuits (ICs). Electronics' ubiquitous black chips. Includes a focus on the variety of IC packages.

Light-Emitting Diodes (LEDs)

August 12, 2013

Learn the basics about LEDs as well as some more advanced topics to help you calculate requirements for projects containing many LEDs.

Qwiic Differential I2C Bus Extender (PCA9615) Hookup Guide

May 31, 2018

Learn how to extend the range of your I2C communication bus with the Qwiic differential I2C bus extender (PCA9615 ) breakout board.

Button and 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.

SparkFun ProDriver Hookup Guide

September 3, 2020

The SparkFun ProDriver utilizes Toshiba's TC78H670FTG stepper motor driver and with the latch pin connections, this new board is easier to get started with than the "Easy" Drivers. To get started, follow this hookup guide and you will be spinning stepper motors, in no time.

Beginner Parts Kit Identification Guide

March 22, 2019

The essential parts for beginning (or even experienced) hobbyists that gives you all of the basic through-hole components you will need to get started playing with embedded projects. We'll identify a few parts in the kit and provide a few basic circuits to get started!

Connector Basics

January 18, 2013

Connectors are a major source of confusion for people just beginning electronics. The number of different options, terms, and names of connectors can make selecting one, or finding the one you need, daunting. This article will help you get a jump on the world of connectors.

Cherry MX Switch Breakout Hookup Guide

April 21, 2016

How to assemble and use the Cherry MX Switch Breakout, allowing you to turn a matrix of mechanical switches into a full-size keyboard!

Battery Technologies

February 6, 2013

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

MCP4725 Digital to Analog Converter Hookup Guide

September 11, 2014

This is a quick hookup to help you get started with the MCP4725 DAC breakout board. This device allows you to send analog signal from a digital source, like the I2C interface on the Arduino microcontroller.

SparkFun Clock Generator 5P49V60 (Qwiic) Hookup Guide

February 28, 2020

The SparkFun Clock Generator 5P49V60 (Qwiic) breakout board offers a wide range of customizable frequencies in a wide range of different signal types using a single reference clock. This hookup guide will go over all of the many available functions and gives the hardware rundown on what exactly is on this board.

MiniGen Hookup Guide

May 22, 2014

Using the MiniGen, SparkFun's Arduino Pro Mini signal generator shield

Bi-Directional Logic Level Converter Hookup Guide

October 25, 2013

An overview of the Bi-Directional Logic Level Converter, and some example circuits to show how it works.

Transistors

July 1, 2014

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

Diodes

May 9, 2013

A diode primer! Diode properties, types of diodes, and diode applications.

FemtoBuck Constant Current LED Driver Hookup Guide V12

December 10, 2015

The FemtoBuck board is a high-efficiency, single-channel constant-current LED driver.

PicoBuck Hookup Guide V12

February 18, 2016

The PicoBuck board is a high-efficiency three-channel constant-current LED driver.

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.

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.