Question

How is the Arduino UNO ATmega328P:

a).Able to communicate with a computer via USB for programming and serial communications w/o native USB interface?

b).As well as describe the func of Analog Pins A0-A5, state if pins are analog signal input only, analog signal output only, or both analog signal input and output?

Answer 1

(A) The Arduino Uno is an open-source micro-controller board dependent on the Microchip ATmega328P micro-controller and created by Arduino.cc. ... The ATmega328 on the board comes prearranged with a bootloader that permits transferring new code to it without the utilization of an outer equipment software engineer.

(B) The simple pins let you read/compose simple qualities - essentially, rather than giving out a voltage of 0 or 5 (similarly as with advanced), they can give a scope of voltages somewhere in the range of 0 and 5 (both as information and yield). Note that the voltage during simple yield is just the watched voltage with a multi-meter. Yes the pins are both analog signal input and output.