UNO Expansion Board + ATmega328P Nano V3 Improved Version With USB For Arduino

UNO Expansion Board + ATmega328P Nano V3 Improved Version With USB For Arduino Description: UNO Expansion Board The extension board specifically for the arduino NANO welding on two rows of pins, can be used in the arduino duemilanove 2009, UNO R1 ATmega328P Nano V3 Improved Version Change the USB chip, improve the download speed and stability of WIN7/WIN8 Note: Need to install CH341SER driver, here is the link: http://wch.cn/download/CH341SER_ZIP.html Microcontroller Atmel ATmega328 Operating Voltage (logic level): 5V Input Voltage (recommended): 7V ~ 12V Input Voltage (limits): 6V ~ 20 V Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current per I/O Pin: 40mA Flash Memory: 32KB (ATmega328) (of which 2 KB used by bootloader) SRAM: 2KB (ATmega328) EEPROM: 1KB (ATmega328) Clock Speed: 16MHz Package included: 1 x 328P Multifunction Expansion Board V3.0 1 x Arduino Compatible Improved Version Nano V3.0 with USB cable