Now since we know how an Arduino works let us have some fun with the board. For those of you who are new kindly have a look at the link given below. http://sudolearn.blogspot.com/2017/05/getting-started-with-arduino.html Let us first design a smart led blinking system which will blink how we want it to, sounds fun right. So let’s begin Components Required Resistor 1No. 330ohms (Standard Red LED and 5V Input) Led 1No. Arduino UNO 1No. Few Connecting wires Breadboard Follow the below video for circuit connection reference: Now since we have made the circuit let us do the coding part // declare the pin to which LED is connected: int led = 5; //The below is the setup block the part which we want to run only once we declare them in this block void setup() // initialize the digital pin as an output. { pinMode(led, OUTPUT); } void loop() //The code we write inside void loop