Arduino UNO R3 Development Board Compatible is based 0n? ATmega328 .Arduino uno compatible board? has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.
It contains everything needed to support the microcontroller. simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
Its one of the? best boards to get started with electronics and coding.
PS: This is 100% Compatible clone model and not the original one