Hello everyone,
I'm trying to learn how to create a GUI with processing G4A & G4A tools for my arduino code. And I didn't find much threads about it though I know a lot of people are using Processing to create a GUI. So if someone could show me some basic drills I can figure out the rest.
In this particular case, say, we use arduino motor shield to drive a DC motor, very simple.
The arduino code:
void setup() {
pinMode(12, OUTPUT); //Initiates Motor Channel A pin
pinMode(9, OUTPUT); //Initiates Brake Channel A pin
}
void loop(){
digitalWrite(12, HIGH); //orward direction
digitalWrite(9, LOW); //Disengage the Brake
analogWrite(3, 255); //full speed
delay(3000);
analogWrite(3, 0); //stop
}
And I'd like to build a window in processing in which there're a text field and a button (picture in the attachment). What I wanted to do is you insert a number (1-255) in the text field, then press the button to make the motor rotate.
The Processing code (just the interface):
// Need G4P library
import g4p_controls.*;
public void setup(){
size(480, 320, JAVA2D);
createGUI();
customGUI();
// Place your setup code here
}
public void draw(){
background(230);
}
// Use this method to add additional statements
// to customise the GUI controls
public void customGUI(){
}
public void button1_click1(GButton source, GEvent event) { //_CODE_:button1:728997:
println("button1 - GButton event occured " + System.currentTimeMillis()%10000000 );
} //_CODE_:button1:728997:
public void textfield1_change1(GTextField source, GEvent event) { //_CODE_:textfield1:846020:
println("textfield1 - GTextField event occured " + System.currentTimeMillis()%10000000 );
} //_CODE_:textfield1:846020:
// Create all the GUI controls.
// autogenerated do not edit
public void createGUI(){
G4P.messagesEnabled(false);
G4P.setGlobalColorScheme(GCScheme.BLUE_SCHEME);
G4P.setCursor(ARROW);
if(frame != null)
frame.setTitle("Sketch Window");
button1 = new GButton(this, 130, 184, 80, 30);
button1.setText("Go");
button1.addEventHandler(this, "button1_click1");
textfield1 = new GTextField(this, 98, 128, 160, 30, G4P.SCROLLBARS_NONE);
textfield1.setText("Speed here");
textfield1.setOpaque(true);
textfield1.addEventHandler(this, "textfield1_change1");
}
// Variable declarations
// autogenerated do not edit
GButton button1;
GTextField textfield1;
So how can I link my arduino program to the processing program? Do I need to rewrite the arduino code in processing? if so what should we do with functions like digitalWrite, delay, that are built-in in the arduino.h?
And what if there're 2 motors?
I'm really a newbie in this and any advice is greatly appreciated. Many thanks!
