This is improved Arduino Uno R3 is one of the latest version of Arduino Uno with an on-board CH340 usb - serial converter chip. This provides you a cheaper opportunitiy to get started with Arduino boards. The microcontroller model of this board is the same as the original one (Atmega328). The only difference between microcontrollers is ther package. Original one has a DIP package but the clone one has SMD package microcontroller. Its more powerfull as compare to dip version.
ATmega328-AU microcontroller with UNO Bootloader Installed.
USB Programming Facilitated by the CH340G.
USB-B Connector and cable included.
Input voltage - 7-15V.
0-5V outputs with 3.3V compatible inputs.
14 Digital I/O Pins (6 PWM outputs).
6 Analog Inputs.
32k Flash Memor.y
16MHz Clock Speed.
All SMD Construction.
R3 Shield Compatible
Main Changes from the older version:
Add two rows of the holes for the pins. So it can be connected with normal Dubond line.
Add 3 rows of the holes for wiring.
Change the in-line package of ATMEGA328P to flat package.
CH340G Replace ATmega16U2
Plug UNO development board, the driver will be automatically installed.
select the board UNO inside the die.
Select the COM port, this can be in my computer queries, just inside your uno port development board
You'd better to choose arduino own routine procedures, burn into the board