family
The Arduino UNO Rev3 is a part of the Arduino family of open source hardware development controllers. It is based on the ATmega328P microcontroller, and it is a small, breadboard-friendly board with support for a wide range of shield boards. It includes 20 digital input/output pins, 6 analog inputs, a USB connection, a 16 MHz crystal oscillator, a power jack, an ICSP header, and a reset button. It measures approximately 25 x 18 x 4mm, making it easy to integrate into projects. It supports communication protocols such as UART, SPI, I2C, and USB, which allows it to be used in a wide variety of applications. Its small size, rich features, and ease of use make it an ideal choice for entry-level programming projects.