Simple Demo of Led RGB

Simple Demo of Led RGB

Demonstration

• Hardware Simulation

Introduction

See Introduction of Internet of the Things in previous article.

Objective

Demonstrate how to use an RGB led. That is all!

Software

• Hardware Simulation
  • Tinkercad

Hardware

• Arduino UNO

  

• Breadboard mini

  

• Led RGB

  

• Resistances

  

Code

• Simple_Demo_of_Led_RGB

  /*
  led_rgb.c 
  v0.0.1 - 2019-02-20 - nelbren.com
  */ 
  int ledRed =   13;
  int ledBlue =  12;
  int ledGreen = 11;
  
  void setup(void){
    Serial.begin(9600);
    Serial.println("");
      
    pinMode(ledGreen, OUTPUT);
    digitalWrite(ledGreen, HIGH);
  
    pinMode(ledBlue, OUTPUT);
    digitalWrite(ledBlue, HIGH);
  
    pinMode(ledRed, OUTPUT);
    digitalWrite(ledRed, HIGH);
  }
  
  void red(void) {
    digitalWrite(ledRed, HIGH);
    digitalWrite(ledGreen, LOW);
    digitalWrite(ledBlue, LOW);
    Serial.println("  -> RED!");
  }
  
  void green(void) {
    digitalWrite(ledGreen, HIGH);
    digitalWrite(ledRed, LOW);
    digitalWrite(ledBlue, LOW);
    Serial.println("  -> GREEN!");
  }
  
  void yellow(void) {
    digitalWrite(ledRed, HIGH);
    digitalWrite(ledGreen, HIGH);
    digitalWrite(ledBlue, LOW);
    Serial.println("  -> YELLOW!");
  }
  
  void blue(void) {
    digitalWrite(ledBlue, HIGH);
    digitalWrite(ledRed, LOW);
    digitalWrite(ledGreen, LOW);
    Serial.println("  -> BLUE!");
  }
  
  void white(void) {
    digitalWrite(ledBlue, HIGH);
    digitalWrite(ledRed, HIGH);
    digitalWrite(ledGreen, HIGH);  
    Serial.println("  -> WHITE!");
  }
  
  void black(void) {
    digitalWrite(ledRed, LOW);
    digitalWrite(ledGreen, LOW);
    digitalWrite(ledBlue, LOW);
    Serial.println("  -> BLACK!");
  }
  
  void demo(void) {
    Serial.println("DEMO:");
    for(int i = 0; i < 6; i++) {
      switch (i) {
        case 0: red(); break;
        case 1: green(); break;
        case 2: yellow(); break;
        case 3: blue(); break;
        case 4: white(); break;
        case 5: black(); break;
      }
      delay(1000);
    }
    Serial.println("");
  }
  
  void loop(void){
    demo();
  }