Power

New!

Current Sensor Breakout (ACS723) Hookup Guide

June 21, 2018

Learn how to measure the current consumption of your project using the ACS723 Current Sensor.
New!

Nuclear Battery Assembly Guide

June 8, 2018

How to put together your BYOT (Bring Your Own Tritium) Nuclear Battery Kit!

IoT Power Relay

May 21, 2018

Using the ESP32 to make a web-configured timed relay.

12V/5V Power Supply Hookup Guide

May 10, 2018

In this tutorial, we will replace the 12V/5V (2A) power supply's molex connector with two male barrel jacks adapters.

SparkFun 5V/1A LiPo Charger/Booster Hookup Guide

September 28, 2017

This tutorial shows you how to hook up and use the SparkFun 5V/1A LiPo Charger/Booster circuit.

Adjustable LiPo Charger Hookup Guide

September 28, 2017

The SparkFun Adjustable LiPo Charger is a single-cell lithium polymer (LiPo) and lithium ion battery charger. Because it’s adjustable, this charger will be able to safely charge all of our singe-cell batteries.

Powering LilyPad LED Projects

December 17, 2016

Learn how to calculate how many LEDs your LilyPad project can power and how long it will last.

Battery Babysitter Hookup Guide

June 23, 2016

An introduction and getting started guide for the Battery Babysitter - a flexible LiPo battery charger and monitor.

Beefcake Relay Control Hookup Guide

June 2, 2016

This is a guide for assembling and basic use of the Beefcake Relay Control board

What is a Battery?

May 3, 2016

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

PicoBuck Hookup Guide V12

February 18, 2016

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

FemtoBuck Constant Current LED Driver Hookup Guide V12

December 10, 2015

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

Adding a Timed Button to a Project

July 29, 2015

This tutorial will walk you through making a timed power controller for interactive projects. You will learn how to add an on button that will provide power to your project for an amount of time and then turn off again.

Photon Battery Shield Hookup Guide

July 2, 2015

The Photon Battery Shield has everything your Photon needs to run off, charge, and monitor a LiPo battery. Read through this hookup guide to get started using it.

Wake-on-Shake Hookup Guide

March 13, 2015

A basic hookup guide for getting started with the SparkFun Wake-on-Shake. The board gives you the ability to put your project into hibernation until bumped or shaken awake using the ADXL362 accelerometer. This means you can design projects meant to stay inert for long periods of time, possibly even several years, depending on the battery type used to power the project.

LilyPad Simple Power Hookup Guide

January 15, 2015

A basic guide for getting started using the LilyPad Simple Power.

Benchtop Power Board Kit Hookup Guide

November 3, 2014

Need more power? This Benchtop ATX Power Supply Kit should help give you the boost you need to power those energy hungry projects.

LTC4150 Coulomb Counter Hookup Guide

September 18, 2014

A "Coulomb Counter" is like a gas gauge for your battery. Here's how to use it.

How Lithium Polymer Batteries are Made

May 28, 2014

We got the opportunity to tour the Great Power Battery factory. Checkout how LiPos are made!

LiPo USB Charger Hookup Guide

May 1, 2014

How to charge your LiPo batteries with the USB LiPo charger. Plus how to modify your charger to set the charge current.

Electric Power

June 26, 2013

An overview of electric power, the rate of energy transfer. We'll talk definition of power, watts, equations, and power ratings. 1.21 gigawatts of tutorial fun!

How to Power a Project

February 7, 2013

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

Battery Technologies

February 6, 2013

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

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.