Components

Single Supply Logic Level Converter Hookup Guide

August 9, 2018

The Single Supply Logic Converter allows you to bi-directionally translate signals from a 5V or 3.3V microcontroller without the need for a second power supply! The board provides an output for both 5V and 3.3V to power your sensors. It is equipped with a PTH resistor footprint for the option to adjust the voltage regulator on the low side of the TXB0104 for 2.5V or 1.8V devices.

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 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.

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!

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.

Hobby Servo Tutorial

May 26, 2016

Servos are motors that allow you to accurately control the rotation of the output shaft, opening up all kinds of possibilities for robotics and other projects.

Reed Switch Hookup Guide

May 5, 2016

Magnetically-actuated reed switches are the perfect component for non-contact proximity sensors. This tutorial provides a quick overview and example hook up.

Piezo Vibration Sensor Hookup Guide

May 5, 2016

How to combine a piezo sensor, high-value resistor, and an Arduino to create a vibration sensor.

Force Sensitive Resistor Hookup Guide

May 5, 2016

How to hook a force-sensitive resistor up to an Arduino to measure pressure variances.

Flex Sensor Hookup Guide

May 5, 2016

An overview of the flex sensor - a bendable variable resistor. Plus, example circuits and Arduino code to get you started!

Photocell Hookup Guide

May 5, 2016

Hook a light-sensing photocell up to an Arduino to create an ambient light monitor.

SoftPot Hookup Guide

May 5, 2016

Equip your Arduino project with a sliding soft potentiometer to monitor position or adding linear control to your project.

QRD1114 Optical Detector Hookup Guide

May 5, 2016

Use this IR LED/phototransistor fusion to sense objects in close proximity or even the color of a surface!

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!

PicoBuck Hookup Guide V12

February 18, 2016

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

Discrete Semiconductor Kit Identification Guide

November 19, 2015

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

SX1509 I/O Expander Breakout Hookup Guide

September 24, 2015

Learn how you can use the SX1509 to control 16 LEDs or up to 64 buttons with just two pins.

Rotary Switch Potentiometer Hookup Guide

April 30, 2015

How to use the Rotary Switch Potentiometer breakout board, with some sample applications.

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.

Customizing LilyPad LED Colors

May 19, 2014

A short guide to creating a rainbow of new LilyPad LED colors at home!

USB Type A Female Breakout Hookup Guide

February 13, 2014

An above-and-beyond example using the USB Type A Female Breakout board.

PCA9306 Level Translator Hookup Guide

October 31, 2013

A quick primer to get you going with the PCA9306 Logic Level Converter.

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.

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.