Arduino UNO R3 CH340G development board is a low cost but equivalent version of the popular Uno R3 board which had Atmega16U2 chip whereas, this one has the latest version of CH340 USB to Serial converter chip.

Specification:-

• Model name : UNO R3 SMD

• Chip name : ATMEGA328

• Operating voltage : 5V

• Recommended voltage range : 5V to 12V

• Digital input/output pins : 14 (out of which 6 provide PWM output).

• Analog input/output pins : 6

• Clock frequency : 16Mhz

Features:

• 32k Flash Memory

• 16MHz Clock Speed

• All SMD Construction

• R3 Shield Compatible

• 14 Digital I/O Pins (6 PWM outputs)