Introduction to Arduino Project (The Best User Guide for Beginner)

Description

What is Arduino good for?
Firstly, it’s awesome for learning electronics.
Secondly, Arduino is wonderful when you want to compile a program for it, attach a battery or a power connector and put it somewhere to run, and play around with sensors and some other really cool stuffs that interface with the real world. For instance, you could use an Arduino to power your self-watering plants or track the temperature outside, or power some other home automation stuff.

Arduino was specially designed to be a learning device ab initio. This simple fact explains why the original Arduino Core team incorporated several design choices in the programme.
The most important success factor of Arduino is that it is completely Open Source, and is one of the first to do so too. Both the hardware and software are open source.

Arduino does not have its own operating system, and it simply runs a single program at a time. So, you don’t have to worry about anything since there is nothing else than your program running on the Arduino.

In fact, most Arduino boards do not even have network connection, out of the box! Although some do, like the Arduino Uno WiFi rev 2 or the Arduino MKR WiFi 1010.
Once you load a program, it boots any time the Arduino is powered, either via USB or via the power port via a AC-to-DC power cable or a battery.
By inference, once you have loaded the program, you can put the Arduino on a mountain with a solar panel and a battery, and it will keep running until there’s power.

in the Arduino Language, which is C++ with some suitable features that make it easy for beginners to start with.