Week 5

Title of Activity
Research about Arduino (Hardware)

Objective

• Identify characteristic of Arduino Duemilanove.
• Ability and specification of Arduino Duemilanove.

Content/Procedure

Introduction

The Arduino Duemilanove has been created in year 2009 is a microcontroller board based on the ATmega168. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. 

Arduino Duemilanove

Specification

For schematic diagram : http://arduino.cc/en/uploads/Main/arduino-duemilanove-schematic.pdf

Power

The Arduino Duemilanove can be powered via the USB connection or with an external power supply. The power source is selected automatically. 

• VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.

• 5V. The regulated power supply used to power the microcontroller and other components on the board. This can come either from VIN via an on-board regulator, or be supplied by USB or another regulated 5V supply.

• 3V3. A 3.3 volt supply generated by the on-board FTDI chip. Maximum current draw is 50 mA.

• GND. Ground pins.   

Result/Analysis

The Duemilanove is the latest in a series of USB Arduino boards for a comparison with previous versions that should suitable for my project.