ARDUINO
What are the Arduino digital pins?
The Arduino project began in 2005 as a tool for students at the Interaction Design Institute Ivrea, Italy, aiming to provide a low-cost and easy way for novices and professionals to create devices that interact with their environment using sensors and actuators.
What can we connect on the digital pins of Arduino?
The digital inputs and outputs (digital I/O) on the Arduino are what allow you to connect the Arduino sensors, actuators, and other ICs. Learning how to use them will allow you to use the Arduino to do some really useful things, such as reading switch inputs, lighting indicators, and controlling relay outputs.
What programming language does the Arduino use?
C++ programming language Arduino uses a variant of the C++ programming language. The code is written in C++ with an addition of special methods and functions. Moreover, when you create a 'sketch' (the name given to code files in this language), it is processed and compiled to machine language
What is the void setup() section used for in Arduino programming?
Void setup and void loop
The code that you put inside void setup() will only run once, and that will be at the beginning of your program. One example is when you want to turn your robot on — that does not happen multiple times! In void loop(), your code will repeat over and over again.
What is the void loop() section used for in Arduino programming?
Loop: void loop() { }
This is where the bulk of your Arduino sketch is executed. The program starts directly after the opening curly bracket ( } ), runs until it sees the closing curly bracket ( } ), and jumps back up to the first line in loop() and starts all over.
What is the Arduino project?
Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino boards are able to read inputs - light on a sensor, a finger on a button, or a Twitter message - and turn it into an output - activating a motor, turning on an LED, publishing something online.
Example of a simple Arduino program.

example
What versions of the Arduino board are there?
Different Types Of Arduino Boards
Arduino Uno (R3)
Arduino Nano.
Arduino Micro.
Arduino Due.
LilyPad Arduino Board.
Arduino Bluetooth.
Arduino Diecimila.
RedBoard Arduino Board.
Parts of the Arduino board:
The major components of Arduino UNO board are as follows:
USB connector.
Power port.
Microcontroller.
Analog input pins.
Digital pins.
Reset switch.
Crystal oscillator.
USB interface chip.
What are the analog pins on the Arduino?
While the main function of the analog pins for most Arduino users is to read analog sensors, the analog pins also have all the functionality of general purpose input/output (GPIO) pins (the same as digital pins 0 - 13).
What can we connect to the analog pins of the Arduino?
While the main function of the analog pins for most Arduino users is to read analog sensors, the analog pins also have all the functionality of general purpose input/output (GPIO) pins (the same as digital pins 0 - 13).