Arduino controller - Uno

Arduino Uno is a controller designed on the ATmega328 processor, and contains 14 digital ports and 6 analog inputs and a USB port, and the circuit operates at a frequency of 16 MHz. This controller is distinguished by being one of the most common Arduino controllers, due to the many compatible accessories, and the variety of applications and projects. Technical specifications Microcontroller: ATmega328 Operating Voltage: 5V Input Voltage (recommended): 7-12V Input Voltage (limit): 6-20V Digital I/O Pins: 14 PWM Digital I/O Pins: 6 Analog Input Pins: 6 DC Current per I/O Pin: 40 mA DC Current for 3.3V Pin: 50 mA Flash Memory: 32 KB Flash Memory for Bootloader: 0.5 KB SRAM: 2 KB EEPROM: 1 KB Clock Speed: 16 MHz