Introducing Arduino Uno

Most commonly used microcontroller board “Arduino Uno” is world famous among the Techology lovers. It’s based on Microchip ATmega328p microcontroller developed by Arduino.cc . We are also going to use this board in our projects.

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Arduino Uno board is having 16 digital I/O pins, 6 analog I/O pins and is programmable with Arduino IDE software, via a type-B USB cable. It can be powered by USB and a 9-volts battery.

There are different types of Arduino Boars for example:

• Arduino Uno (R3)
• Arduino Nano
• Arduino Micro
• Arduino Due
• LilyPad Arduino Board
• Arduino Bluetooth
• Arduino Diecimila
• RedBoard Arduino Board
• Arduino Mega (R3) Board
• Arduino Leonardo Board
• etc.

Each board is almost same with some more or less in-built features.

Arduino Uno pin configuration

Elements of Arduino:-

• 16 digital pins
• 6 analog pins
• 9-volt external power supply
• B-type USB port
• Reset button
• +5v & +3.3v output with GND
• I2C pinouts
• SDA & SCL pins
• SPI pins(SCK,SS/CS, MOSI & MISO pins)
• PWM output pins
• ATmega328 IC

History Of Arduino

This Uno board was the first in a series of USB-based Arduino Boards. The word “uno” means “one” in Italian. Arduino project started at the Interaction Design Institute Ivrea, Italy. The project goal was to create low-cost, simple tools for creating projects by non-engineers.

Early Arduino boars used a FTDI USB-to-Serial driver chip and an ATmega168.

Software For Programming

An offline software called Arduino IDE was created by Arduino.cc to program the Arduino board. But now they had also created a place to program Arduino online with Arduino Cloud.

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