Getting Acquainted with the Magical Arduino Leonardo

The Arduino Leonardo was the first Arduino to use Atmel’s ATmegaXU4 series chip with built-in USB. This change is big, and it has big benefits. In addition to

SparkFun Tutorials

Arduino Leonardo with Headers — Arduino Official Store

Display Your Photo on OLED Display : 10 Steps (with Pictures) - Instructables

Difficulty uploading with a Leonardo - IDE 1.x - Arduino Forum

Elevating Chemistry Research with a Modern Electronics Toolkit

Advanced View Arduino Projects List - Use Arduino for Projects (3).pdf

Help with first project - Project Guidance - Arduino Forum

Lesson 3: Entering the World of Arduino and Coding — SunFounder GalaxyRVR Kit for Arduino 1.0 documentation

Microcontroller Electronics