Sunday, June 13, 2021

What is a Microcontroller

What is a Microcontroller 

Wikipedia says:

A micro-controller is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals

The important part for us is that a micro-controller contains the processor (which

all computers have) and memory, and some input/output pins that you can control. (often called GPIO - General Purpose Input Output Pins).

Arduino Uno Microcontroller Boards

Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, 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. "Uno" means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases.

The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards.




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