Tutorial 3 - Manage Several LEDs simultaneously

To carry out this simple tutorial 3, below are the items you need alongside your computer with an arduino program already installed.  Arduino UNO board  Breadboard  Male-male connection cables  Four 330 Ω resistor (orange, orange, brown)  Two red LED  Two green LED Below is the program for this tutorial, copy and paste on Arduino program: //Declaración de constantes #define RED1 2 #define RED2 7 #define GREEN1 4 #define GREEN2 12 #define DELAYTIME 2000 void setup() { // put your setup code here, to run once: pinMode (RED1, OUTPUT); pinMode (RED2, OUTPUT); pinMode (GREEN1, OUTPUT); pinMode (GREEN2, OUTPUT); digitalWrite (RED1, LOW); digitalWrite (RED2, LOW); digitalWrite (GREEN1, LOW); digitalWrite (GREEN2, LOW); } void loop() { // put your main code here, to run repeatedly: digitalWrite (GREEN1, HIGH); digitalWrite (GREEN2, HIGH); digitalWrite (RED1, LOW); digitalWrite (RED2, LOW); delay(DELAYTIME); digitalWrite (GREEN1, LOW); digitalWrite (GREEN2, LOW); digitalWrite (RED1, HIGH); digitalWrite (RED2, HIGH); delay(DELAYTIME); } Enjoy and subscribe!!