Technical summary
The ViewTek MB0071 UNO R3 CH340 board is a control board optimized from the Arduino Uno R3 board.
It has two main advantages
1. Completely solves the compatibility and instability issues under Windows 7 and 8
2. Replace the 16Ué chip with the higher-performance and more economical CH340G chip.
Technical parameters:
ATmega328P-PU microcontroller
Operating voltage: 5V
Input voltage: 5-9V
Digital I/O: 14 (6 of which provide PWM output)
PWM digital I/O: 6
Analog input pins: 6
DC current per I/O pin: 20mA
DC current for the 3.3V pin: 50mA
Flash memory: 32KB (ATmega328P) of which 0.5KB used by
bootloader
SRAM: 2KB (ATmega328P)
EEPROM: 1KB (ATmega328P)
Clock speed: 16MHz
