Header File Problem

[LeonCorleone]

Hello guys
I want to create a new header with Wire.h header , but I have an error.
If somebody could help me , please.
Name of my new header is I2CH.h ,My code is the same as below :
-------------------------------------------------------------------------------
//I2CH.h
#ifndef I2CH_H
#define I2CH_H
#include "Arduino.h"
#include "Wire.h"
class I2CH
{
public:
void I2CBegin();
};
#endif
----------------------------------------------------------------------------------
//I2CH.cpp
#include "I2CH.h"
void I2CH::I2CBegin()
{
Wire.begin(); // join i2c bus (address optional for master)
}
----------------------------------------------------------------------------------------
//Main.ino
#include <I2CH.h>
#include <Wire.h>

I2CH I2C;

void setup() {
I2C.I2CBegin();
}

void loop() {
}
----------------------------------------------------------------------------------------
//Compile error
C:\Users\Leon\AppData\Local\Temp\build6400254520694862223.tmp\aa.cpp.o: In function `setup':
C:\Program Files (x86)\Arduino/aa.ino:7: undefined reference to `I2CH::I2CBegin()'
collect2.exe: error: ld returned 1 exit status. Error compiling.

[Thorsten Pferdekämper]

Hi,
where did you put these files?
Regards,
Thorsten

[rkuehle]

It compiles without any errors when the folder for the .ccp and .h files is named "I2CH" under the libraries - folder.
One rule ist, that name of the class, foldername and filenames must be exactly the same (also upper-/lowercase of the names).
Regards

[LeonCorleone]

Thanks to answer me, I've considered all these things and I put this header in file , the same name with class and in this direction: C:\Users\Leon\Documents\Arduino\libraries\I2CH
But I still have problem.
Actually when I want to use I2C.I2CBegin(); in void setup , compiler has that error.
Thanks again.

[Thorsten Pferdekämper]

Have you restarted the IDE since putting the files into the libraries directory?

[LeonCorleone]

yes I'vd done but nothing.

[rkuehle]

Take a look at this:
All files - except the sketch - should be saved in the libraries\I2CH - folder
The sketch:

Code:

#include <I2CH.h>
#include <Wire.h>
I2CH I2CH;
void setup()
{
  I2CH.Begin();
}
void loop()
{
}

The .h file:

Code:

// File I2CH.h
#ifndef I2CH_h
#define I2CH_h
#include "Arduino.h"
#include "Wire.h"
class I2CH
{
public:
    I2CH();
    void Begin();
private:
};
#endif

The .cpp file:

Code:

//File I2CH.cpp
#include "Arduino.h"
#include "I2CH.h"
I2CH::I2CH(){};
void I2CH::Begin()
{
Wire.begin(); // join i2c bus (address optional for master)
}

The keywords file:

Code:

// File keywords.txt
// Words per line sparated with tabs
I2CH    KEYWORD1
Begin KEYWORD2

Hope it helps!
Regards Ricardo

[LeonCorleone]

Thank you all of you guys.
Finally I've got solved problem.
Problem was extension of cpp file . It is I2CH.cpp .but I'd written I2CH.Cpp
Thanks again