SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!
We’ve been meaning to write this interfacing tutorial for many years now. It’s a simple breakdown of the various ways to interface 3.3V logic devices to 5V logic devices. It’s not too tricky! We hope it helps you avoid burning out your lower voltage sensors and devices.