Arduino UNO R3 SMD (Compatible)

In general, the parameters and functions of this CH340 board is the same with arduino’s official UNO except for the input voltage.

Parameters:
Microcontroller:ATmega328P
Operating Voltage:5V
Digital I/O Pins 14 (of which 6 provide PWM output)
PWM Digital I/O Pins:6
Analog Input Pins:6
DC Current per I/O Pin:20 mA
DC Current for 3.3V Pin:50 mA
Flash Memory: 32 KB (ATmega328P), of which 0.5 KB used by bootloader
SRAM:2 KB (ATmega328P)
EEPROM: 1 KB (ATmega328P)
Clock Speed:16 MHz