OLIMEX© 2014
AVR-T32U4 user's manual
CHAPTER 1 OVERVIEW
1. Introduction to the chapter
Thank you for choosing the AVR-T32U4 development board from Olimex! This document provides
a User’s Guide for the Olimex AVR-T32U4 development board. As an overview, this chapter gives
the scope of this document and lists the board’s features. The document’s organization is then
detailed.
The AVR-T32U4 development board enables code development of applications running on the
ATMega32U4 microcontroller, manufactured by Microchip technology.
1.1 Features
Some of the features of the board are listed below:
•
ATMEGA32U4 microcontroller, all in one USB communication no need for external FTDI
chip.
•
Input power supply taken from mini USB
•
Feeds power to the breadboard bus
•
Works both on 3.3V and 5V
•
UEXT connector which allow many existing modules like RF, ZIGBEE, GSM, GPS to be
connected
•
The LEDs and the BUTTONs are on the edge of the board so there is easy access even if the
boards have shields on them
•
Mini USB connector is used which is common and used in most cell phones, so you do not
have to buy other cables
1.2 Similar boards
AVR-T32U4 is ARDUINO-LEONARDO-like breadboard with ATMega32U4.
It is a powerful board considering its low price but yet a starter board for the Arduino family.
The more powerful Arduino boards we have in the range are OLIMEXINO-32U4 again based on
Leonardo and OLIMEXINO-328 – based on Arduino Duenomilanove. Both differ from AVR-
T32U4 in having the standard Arduino shield connectors and additional features. OLIMEXINO-328
has a more sophisticated supply circuit, USB OTG connector and there are more Arduino projects
available for it.
1.3 Organization
Each section in this document covers a separate topic, organized as follow:
–
Chapter 1 is an overview of the board usage and features
–
Chapter 2 has a short introduction to Arduino platform and its derivatives Pinguino and
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