Specifications of Arduino Uno R3 SMD with ATmega328-AU Microcontroller Development Board:

• ATmega328-AU microcontroller with pre-installed UNO Bootloader.
• CH340G for facilitating USB programming.
• USB-B Connector and cable included.
• Input voltage range: 7-15V.
• Outputs ranging from 0-5V, compatible with 3.3V inputs.
• 14 Digital I/O Pins (including 6 PWM outputs).
• 6 Analog Inputs.
• ISP Header for programming.
• 32k Flash Memory.
• Clock Speed: 16MHz.
• All SMD Construction.
• Compatible with R3 Shields.

Features of Arduino Uno R3 SMD Programming Board Module:

• Added two rows of pin holes for easy connection using standard Dupont wires.
• Added 3 rows of holes for convenient wiring.
• Replaced the in-line package of ATmega328P with a flat package.
• Replaced ATmega16U2 with CH340G.
• Plug-and-play functionality with automatic driver installation upon connecting the UNO development board.
• Select the UNO board option from the list of available boards.
• Choose the appropriate COM port, which can be found by querying the connected UNO port on your computer.
• It is recommended to use Arduino’s official software and burn their provided routines into the board.