The Uno R3 DIP ATmega328P Development Board is the low-cost version of the popular UNO R3 Arduino.\ UNO is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, 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 an AC-to-DC adapter or battery to get started.
 
Features and Specifications:
 
Board Name : UNO R3 
Microcontroller : ATmega328P
USB-Serial IC : atmega
USB connector : USB-B 
Pins:
 
                     – Built-in LED Pin : 13
                     – Digital I/O Pins : 14
                     – Analog input pins : 6
                     – PWM pins : 6
 
Communication:
 
                    – UART : Yes
                    – I2C : yes
                    – SPI : Yes
 
Power:
 
                   – I/O Voltage: 5V
                   – Input voltage (nominal): 7-12V
                   – DC Current per I/O Pin: 20 mA
                  – Power Supply Connector: Barrel Plug
 
Clock speed:
 
                – Main Processor: ATmega328P 16 MHz 
 
Memory:
 
               – ATmega328P: 2KB SRAM, 32KB FLASH, 1KB EEPROM
               – Width: 53.34 mm
               – Length: 68.58 mm
 
Package Includes:
1 x Arduino UNO R3 Development Board