Light is a useful tool for the electrical engineer. Understanding how light relates to electronics is a fundamental skill for many projects.
LiPo USB Charger Hookup Guide
How to charge your LiPo batteries with the USB LiPo charger. Plus how to modify your charger to set the charge current.
SIK Keyboard Instrument
We can use the parts and concepts in the SparkFun Invetor's Kit to make a primitive keyboard instrument.
MicroView Digital Compass
Build a portable digital compass using the SparkFun MicroView and the MAG3110 Magnetometer Breakout.
Light-Emitting Diodes (LEDs)
Learn the basics about LEDs as well as some more advanced topics to help you calculate requirements for projects containing many LEDs.
How LEDs are Made
We take a tour of a LED manufacturer and learn how PTH 5mm LEDs are made for SparkFun.
This tutorial explains how common IR communications works, as well as shows you how to set up a simple IR transmitter and receiver.
Sensor Kit Resource Hub
An overview of each component in the SparkFun Sensor Kit, plus links to tutorials and other resources you'll need to hook them up.
GPS Differential Vector Pointer
Use GPS to have two objects, a base and a target, point towards one another. This can be used to aim a directional antenna (or in the case of this project, a laser) from one object to the other object at a distance that is only limited by your ability to provide the base station with the target's GPS location.
ESP8266 Thing Hookup Guide
An overview of SparkFun's ESP8266 Thing - a development board for the Internet of...Things. This tutorial explains the circuitry driving the board, and how to get it up and running in an Arduino environment.