Hardik Rathod
Published © GPL3+

Control Arduino Using GUI (Arduino + Processing)

Very easy and interesting project to create GUI (i.e. Buttons, Sliders, Knobs and many more) to control Arduino

BeginnerFull instructions provided30 minutes89,530
Control Arduino Using GUI (Arduino + Processing)

Things used in this project

Hardware components

Arduino
×1
Breadboard (generic)
Breadboard (generic)
×1
LED
×3
100 Ohm Resistor
×1
Jumper wires
×4

Software apps and online services

Arduino IDE
Processing

Story

Read more

Schematics

Circuit

Code

Arduino Sketch

Arduino
void setup() {

  pinMode(10, OUTPUT);   //set pin as output , blue led
  pinMode(11, OUTPUT);   //set pin as output , red led
  pinMode(12, OUTPUT);   //set pin as output , yellow led

  Serial.begin(9600);    //start serial communication @9600 bps
  }

void loop(){
  
  if(Serial.available()){  //id data is available to read

    char val = Serial.read();

    if(val == 'r'){       //if r received
      digitalWrite(11, HIGH); //turn on red led
      }
    if(val == 'b'){       //if b received
      digitalWrite(10, HIGH); //turn on blue led
      }
    if(val == 'y'){       //if y received
      digitalWrite(12, HIGH); //turn on yellow led
      }
    if(val == 'f'){       //if f received
      digitalWrite(11, LOW); //turn off all led
      digitalWrite(12, LOW);
      digitalWrite(10, LOW);
      }      
    }
  }

Processing sketch

Processing
import controlP5.*; //import ControlP5 library
import processing.serial.*;

Serial port;

ControlP5 cp5; //create ControlP5 object
PFont font;

void setup(){ //same as arduino program

  size(300, 450);    //window size, (width, height)
  
  printArray(Serial.list());   //prints all available serial ports
  
  port = new Serial(this, "COM3", 9600);  //i have connected arduino to com3, it would be different in linux and mac os
  
  //lets add buton to empty window
  
  cp5 = new ControlP5(this);
  font = createFont("calibri light bold", 20);    // custom fonts for buttons and title
  
  cp5.addButton("red")     //"red" is the name of button
    .setPosition(100, 50)  //x and y coordinates of upper left corner of button
    .setSize(120, 70)      //(width, height)
    .setFont(font)
  ;   

  cp5.addButton("yellow")     //"yellow" is the name of button
    .setPosition(100, 150)  //x and y coordinates of upper left corner of button
    .setSize(120, 70)      //(width, height)
    .setFont(font)
  ;

  cp5.addButton("blue")     //"blue" is the name of button
    .setPosition(100, 250)  //x and y coordinates of upper left corner of button
    .setSize(120, 70)      //(width, height)
    .setFont(font)
  ;
  
  cp5.addButton("alloff")     //"alloff" is the name of button
    .setPosition(100, 350)  //x and y coordinates of upper left corner of button
    .setSize(120, 70)      //(width, height)
    .setFont(font)
  ;
}

void draw(){  //same as loop in arduino

  background(150, 0 , 150); // background color of window (r, g, b) or (0 to 255)
  
  //lets give title to our window
  fill(0, 255, 0);               //text color (r, g, b)
  textFont(font);
  text("LED CONTROL", 80, 30);  // ("text", x coordinate, y coordinat)
}

//lets add some functions to our buttons
//so whe you press any button, it sends perticular char over serial port

void red(){
  port.write('r');
}

void yellow(){
  port.write('y');
}

void blue(){
  port.write('b');
}

void alloff(){
  port.write('f');
}

Credits

Hardik Rathod

Hardik Rathod

1 project • 33 followers

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