Arduino header debugging... Help!

Projects Programming
1

Hey everyone I am looking for some input in my header file for my arduino touchscreen. I currently I have the code in my sketch and I am trying to improve efficiency by placing the homescreen initialization in a header file.

Here is my header

#ifdef Homescreen_h
#define Homescreen_h

#include "Arduino.h"

class Homescreen
{
public
homescreen(void);
buttons(void);
boxes(void);
text(void);
};

#endif

and here is my cpp.

#include <LGDP4535.h>
#include<Arduino.h>
#include<Homescreen.h>
#include<Adafruit_GFX.h>

//Define colors pallate available
//16bit
#define Black 0x0000
#define Navy 0x000F
#define DarkGreen 0x03E0
#define LightGrey 0xC618
#define White 0xFFFF

LGDP4535 tft;

Homescreen::Homescreen()
{
//HomeScreen

void Homescreen::boxes()
{
//Initialize screen boxes
tft.fillRoundRect(0, 0, 210, 25, 5, Blue);
tft.fillRoundRect(0, 30, 220, 40, 5, LightGrey);
tft.fillRoundRect(0, 75, 160, 25, 5, Blue);
tft.fillRoundRect(0, 105, 220, 40, 5, LightGrey);
tft.fillRoundRect(0, 150, 240, 42, 5, LightGrey);
}
void Homescreen::text()
{
//Screen Text
tft.setCursor(10,5);
tft.setTextSize (3);
tft.setTextColor (White);
tft.print("Temperature");
tft.setCursor(10,80);
tft.setTextSize (3);
tft.setTextColor (White);
tft.print("Humidity");
}
void Homescreen::buttons()
{
//Initialize buttons
tft.fillCircle(295, 25, 30, Navy);
tft.drawChar(283, 5, 49, White, Navy, 5);

tft.fillCircle(295, 83, 30, Navy);
tft.drawChar(283, 65, 50, White, Navy, 5);

tft.fillCircle(295, 138, 30, Navy);
tft.drawChar(283, 121, 51, White, Navy, 5);

// tft.fillCircle(295, 193, 30, Navy);
// tft.drawChar(283, 178, 52 ,White, Navy, 5);

//Page select
tft.drawChar(292, 200, 175 ,White, Navy, 5);
tft.drawChar(0, 200, 174 ,White, Navy, 5);
}

Its not quite working out for me. lol and input would be awesome!!

2

Is it possibly because I haven't declared any of the unsigned int's used for my locations?

3

First, open this link and scroll down to #7 (put your code inside code brackets).

Second,

Jimmyb907:
Its not quite working out for me. lol and input would be awesome!!

What errors are you getting? Post the message(s) here.

4 
class Homescreen
{
  public
    homescreen(void);
    buttons(void);
    boxes(void);
    text(void);
};

I can't believe that compiles - no return types and a missing colon.

5

thats what I was wondering.... haha needs some debugging. Its something I threw together, but I am really curious if I can use the syntax like I did in this instance. --> Calling other library's functions while creating a new library. If so .. how can I initialize these functions I have created, i'm guessing just make a instance of the class and use that to reference either the button function or the boxes function.

6

The constructor name MUST be EXACTLY the same as the class name. Homescreen and homescreen are NOT.

7

Well right of the bat its telling me that homescreen does not name a type in my .cpp file

8

Here is my header

#ifdef Homescreen_h
#define Homescreen_h

The first line of your header should be "#ifndef Homescreen_h"
"If I haven't already included the definitions, then define a bunch of stuff, including a variable that means I've already included them."

9

/home/james/Arduino/libraries/Homescreen/Homescreen.h:9:20: error: return type specification for constructor invalid
void Homescreen();

would this be because I am declaring it void??

here is a update of my code

.cpp :

#include <LGDP4535.h>
#include<Arduino.h>
#include<Homescreen.h>
#include<Adafruit_GFX.h>

//Define colors pallate available
//16bit
#define Black 0x0000
#define Navy 0x000F
#define DarkGreen 0x03E0
#define DarkCyan 0x03EF
#define Maroon 0x7800
#define Purple 0x780F
#define Olive 0x7BE0
#define LightGrey 0xC618
#define DarkGrey 0x7BEF
#define Blue 0x001F
#define Green 0x07E0
#define Cyan 0x07FF
#define Red 0xF800
#define Magenta 0xF81F
#define Yellow 0xFFE0
#define White 0xFFFF
#define Orange 0xFD20
#define GreenYellow 0xAFE5

LGDP4535 tft;

Homescreen::Homescreen()
{
//HomeScreen
}

void Homescreen::boxes()
{
//Initialize screen boxes
tft.fillRoundRect(0, 0, 210, 25, 5, Blue);
tft.fillRoundRect(0, 30, 220, 40, 5, LightGrey);
tft.fillRoundRect(0, 75, 160, 25, 5, Blue);
tft.fillRoundRect(0, 105, 220, 40, 5, LightGrey);
tft.fillRoundRect(0, 150, 240, 42, 5, LightGrey);
}
void Homescreen::text()
{
//Screen Text
tft.setCursor(10,5);
tft.setTextSize (3);
tft.setTextColor (White);
tft.print("Temperature");
tft.setCursor(10,80);
tft.setTextSize (3);
tft.setTextColor (White);
tft.print("Humidity");
}
void Homescreen::buttons()
{
//Initialize buttons
tft.fillCircle(295, 25, 30, Navy);
tft.drawChar(283, 5, 49, White, Navy, 5);

tft.fillCircle(295, 83, 30, Navy);
tft.drawChar(283, 65, 50, White, Navy, 5);

tft.fillCircle(295, 138, 30, Navy);
tft.drawChar(283, 121, 51, White, Navy, 5);

// tft.fillCircle(295, 193, 30, Navy);
// tft.drawChar(283, 178, 52 ,White, Navy, 5);

//Page select
tft.drawChar(292, 200, 175 ,White, Navy, 5);
tft.drawChar(0, 200, 174 ,White, Navy, 5);
}

.h :

#ifndef Homescreen_h
#define Homescreen_h

#include "Arduino.h"

class Homescreen
{
public:
void Homescreen();
void buttons();
void boxes();
void text();

};

#endif

10

Awesome it works :slight_smile: :slight_smile: :slight_smile: .

Thanks