Rescue guide for your Adafruit ATmega32u4 breakout board

The ATmega32u4 breakout board is a beta product. The hardware is essentially perfect, but the firmware is wonky. At least once, I’ve convinced myself that mine was broken, but I eventually figured it out. Here’s how to get yours back in shape. Things required to get...

Bootloading an ATmega32u4 with Arduino

A month or two ago I ordered some of Atmel’s ATmega32u4 microcontrollers to play around with. I was excited to get them, but at the time I was really busy at work, so I quickly forgot about them. Last Friday I received some TQFP44 breakout boards and decided to spend...

Adafruit ATMega32u4 as Arduino

You can use the Adafruit ATMega32u4 breakout board  as an Arduino Leonardo by flashing the bootloader in Arduino 1.0.1 to the board. To follow this process, you use another Arduino, like the Arduino Duemilanove, as a programmer. Connect the Arduino Duemilanove to your...