Specifications of Uno R3
Technical Specification:
Microcontroller board based on the Atmega328P
14 digital input/output pins
6 can be used as PWM outputs
6 analog inputs
A 16 MHz quartz crystal
A USB connection
A power jack
An ICSP header
A reset button
Operating Voltage: 5V.
Input Voltage: 7-12V
Input Voltage (limit): 6-20V
DC Current per I/O Pin: 20 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB.
SRAM: 2 KB.
EEPROM: 1 KB
Features:
It is an easy USB interface. This allows interface with USB as this is like a serial device.
The chip on the board plugs straight into your USB port and supports on your computer as a virtual serial port.
It is easy-to-find the microcontroller brain which is the ATmega328 chip.
It has more number of hardware features like timers, external and internal interrupts, PWM pins and multiple sleep modes.
It is an open source design which makes it easy to help in debugging projects.
It is a 16 MHz clock which is fast enough for most applications and does not speeds up the microcontroller.
It is very convenient to manage power inside it and it had a feature of built-in voltage regulation. This can also be powered directly off a USB port without any external power. You can connect an external power source of upto 12v and this regulates it to both 5v and 3.3v.
13 digital pins and 6 analog pins. This sort of pins allows you to connect hardware to your Arduino Uno board externally. Simply plug your electronic devices and sensors into the sockets that correspond to each of these pins and you are good to go.
This has an ICSP connector for bypassing the USB port and interfacing the Arduino directly as a serial device. It has a 32 KB of flash memory for storing your code.
An on-board LED is attached to digital pin 13 to make fast the debugging of code and to make the debug process easy.
Finally, it has a button to reset the program on the chip.
Pin Description:
Applications
Arduino Uno is used in Do-it-Yourself projects prototyping.
In developing projects based on code-based control
Development of Automation System
Designing of basic circuit designs.