BUY ARDUINO UNO R3 https://www.utsource.net/itm/p/8647184.html

Description: The Arduino Uno R3 is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. Features: ATmega328P microcontroller 14 digital input/output pins (6 of which can be used as PWM outputs) 6 analog inputs 16 MHz ceramic resonator USB connection Power jack ICSP header Reset button Applications: The Arduino Uno R3 is a great choice for a wide range of applications such as robotics, interactive media, home automation, and much more. It is also a great choice for beginners who are just getting started with microcontroller programming. (For reference only)