Power

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

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

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

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.

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

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.

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

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.

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.

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

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!).

Learn how to hook up your Qwiic Thermocouple Amplifier.

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.

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

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

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.

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

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

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.