Power

This tutorial will go over how to safely charge, connect, disconnect, reinforcing the cables, and handle single cell LiPo batteries.

Monitor your LiPo battery with the LiPo fuel gauge! In this tutorial, we will be using the MAX17043 and MAX17048 to monitor a single cell, LiPo battery over the Arduino Serial Monitor. We will also connect a display to view the output without the need to connect the microcontroller to a computer.

Delve into the functionality-rich world of the IoT RedBoard ESP32 Development Board!

This tutorial shows you how to hook up and use the SparkFun Thing Plus Dual-Port Logging Shield.

The MyoWare® 2.0 Muscle Sensor, an Arduino-compatible, all-in-one electromyography (EMG) sensor from Advancer Technologies. In this tutorial, we will go over the features and related shields to connect the sensor to a muscle group.

Add Ethernet and PoE capabilities to your MicroMod project using the Ethernet Function Board - W5500.

Small in size, small on current draw. It's a smôl world! This guide will get you up and running with the smôl Power Board AAA.

Small in size, small on current draw. It's a smôl world! This guide will get you up and running with the smôl Power Board LiPo.

Add WiFi to your project with this hookup guide for our Dialog's Ultra Low Power DA16200 R3 shield!

Get started with SparkFun's newest Buck Regulator Boards - the BabyBuck and the Buck!

Learn how to use the enclosed RTK Express product to achieve millimeter level geospatial coordinates.

Learn how to use the enclosed RTK Surveyor product to achieve millimeter level geospatial coordinates.

A Hookup Guide to get you started with the SparkFun Qwiic Dual Solid State Relay.

A Hookup Guide to get you started with the SparkFun Qwiic Quad Solid State Relay Kit (say that five times fast!).

Discussing what thermal resistance is, how it’s used for thermal management, and how to maximize the life of your project.

Learn how to hook up your Qwiic Thermocouple Amplifier.

This guide will go over how to use the USB Type-C Power Delivery Board.

Did you know that most garage doors are at risk of a roll jam attack? Here we make a DIY garage door remote-control system that is much more secure than most commercial-ready products using the latest in ECC cryptography.

Do you need to power a project with 12V and 5V from one wall adapter? The ATX power connector breaks out the standard 4-pin computer peripheral port for your 12V and 5V devices!

Protect your project by adding a fuse in your circuit to save it from molten destruction.

Get started with the RedBoard Artemis ATP - all the functionality of the SparkFun Artemis module wrapped in the Mega Arduino Footprint

Get started with the RedBoard Artemis - all the functionality of the SparkFun Artemis module wrapped in the familiar Uno R3 footprint

Get started with the powerful RedBoard Artemis Nano

The TPL5110 Nano Power Timer is ideal for applications that require low power, and especially those projects that are running off of a LiPo battery. The Nano Power Timer will turn on your project after the set amount of time, continuously.

This tutorial shows you how to hook up and use the SparkFun LiPo Charger Plus board.

This tutorial shows you how to hook up and use the SparkFun Buck-Boost board.

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!

The LuMini 8x8 Matrix (APA102-2020) are the highest resolution LED matrix available.

The LumiDrive LED Driver is SparkFun’s foray into all things Python on micro-controllers. With the SparkFun LumiDrive you will be able to control and personalize a whole strand of APA102s directly from the board itself.

The LuMini Rings (APA102-2020) are the highest resolution LED rings available.

SparkFun’s Qwiic Quad Relay is a product designed for switching not one but four high powered devices from your Arduino or other low powered microcontroller using I2C.

Get started switching those higher power loads around with the Qwiic Single Relay.

The TSH82 Configurable OpAmp board offers the designer a great balance of performance and flexibility. We'll show you how to get the very best out of your board!

Learn the options for powering your LilyPad projects, LiPo battery safety and care, and how to calculate and consider power constraints on your projects.

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.

In this tutorial, we will be connecting a Mean Well LED switching power supply to an addressable LED strip controlled by an Arduino.

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

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

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

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

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.

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

This tutorial shows you how to get started with the ESP32 Thing Power Control Shield.

A hookup guide for the SparkFun Wireless Joystick Kit.

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

The SparkFun ESP8266 Thing Dev Board is a powerful development platform that lets you connect your hardware projects to the Internet. In this guide, we show you how to combine some simple components to remotely log temperature data, send yourself texts and control lights from afar.

A tutorial about different ways to reduce the current draw for your next Arduino project the easy way.

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

Learn how to build a remote water level sensor for a water storage tank and how to automate a pump based off the readings!

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

Learn how to build a wireless controller to kill power when things go... sentient.

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.

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.

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

A series of Blynk projects you can set up on the Blynk Board without ever re-programming it.

Learn how Nick Poole built a WiFi controlled fire-cannon using the ESP8266 Thing Dev Board!

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

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

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.

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.

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.

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

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

How to hookup the Sunny Buddy: a solar-powered, MPPT (peak-power tracking), LiPo battery charger.

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

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

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

Learn how to assemble and use the TL431 in the Uh-Oh Battery Level Indicator Kit.

How to interface with the INA169 Breakout Board to measure current.

Learn the differences between AC and DC, the history, different ways to generate AC and DC, and examples of applications.

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!

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

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

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.