Difference between revisions of "Various Display of Led Lights"

Objective

This tutorial will control 8 LEDs via Processing.

Equipment

• Microduino-Core
• Microduino-FT232R

• Other equipment
  • USB cable one
  • LED one
  • 330Ω resistor one
  • Bread one
  • Breadboard Jumper one box

Schematic

Program

https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Processing/sketch_8LEDs

Note: Don't drop the picture in program

Debug

Step 1: Set up hardware system, as follows:

Step 2: Explain the code:

There are two code files in this example:

LED object:

//Define the variable in object

 int xpos;
 int ypos;
 int w = 50;
 int h = 50;
 
 PImage LEDState=loadImage("LEDOFF.png");
 int ledPin;
 boolean button = false;

//Constructor function

 LED(int xpos_, int ypos_, int ledPin_) {
   xpos = xpos_;
   ypos = ypos_;
   ledPin=ledPin_;
 }

//Display function

 void display() {
   if(button) {
     LEDState=loadImage("LEDON.png");
   } else {
     LEDState=loadImage("LEDOFF.png");
   }
   image(LEDState,xpos,ypos);
 }

sketch_8LEDs: Main function

//Mouse click function, identify which LED was clicked, then change the button state and LED state after click.

 void mousePressed() {
   for (int i = 0; i < leds.length; i ++ ) {
     x=leds[i].xpos;
     y=leds[i].ypos;
     w=leds[i].w;
     h=leds[i].h;
     if (mouseX > x && mouseX < x+w && mouseY > y && mouseY < y+h) {
       leds[i].button = !leds[i].button;
     }
   }
 }

Step 3: Compile the code and download it.

Step 4: Click several LED randomly, observe the result.

Result

8 LED will be displayed in screen, you can control them.

Video