Live Everyday as if It's ur Last Day: ARDUINO BASICS 01

Almost every application which we use today needs a microcontroller. And to make a perfectly working application we need to program a microcontroller properly so that it works perfectly as we need it to work.

One such microcontroller platformthat is widely used and which is fully open sourced is the arduino.

ARDUINO UNO

So in this post and following posts we are going to learn about programming in arduino.

Lets first start with the basics.

There are two main functions which is a must in arduino coding. These two functions mst be included in every code. -

void setup() - As the name suggests, this loop is a setup for functions -

Setting up baud rate. Baud rate is the speed at which the computer/display device talks with the arduino board.
Setting up I/O ports. Letting the mic-controller know which are the ports on which it is going to give outputs and the ones for inputs.
This function is always executed only once, on the start of execution of the code or each time the arduino is resetted.

void loop() - This function is the one resposible more the performance of the mic-controller.

We know that the mic-controller loops a function again and again infinite times. That is the difference between a mic-controller and a mic-processor.
A function which is to be executed continuously is written in void loop().
A void loop can never be empty.

Other functions which are written outside the loop function must have a returning function to the loop. Because the loop is executed every time once the mic-controller is started.

BASIC SYNTAX -

Arduino coding is completely c++ and java based. So almost all syntaxes of java and c++ are used.

For displaying data -

serial.println("//data");
serial.print("//data");

For initializing variables -

int variable ; // eg - int a;
#define variable value ; // eg - #define a 10;

After each statement, a semicolon (;) is used. Except in conditions and loop initialization.
For comments, double hash (//) is used.
To include a library -