keyestudio Uno R3 is a microcontroller board based on the ATmega328 (datasheet).
13cm X 2cm X 19cm40g
Development board for Arduino & Scratch.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. 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.