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edit approved Sep 5, 2015 at 15:24

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#ifndef RGBDigit_h
#define RGBDigit_h

#include <Arduino.h>
#include "Wire.h"
#include "../Adafruit_NeoPixel/Adafruit_NeoPixel.h"
#include "../IRremote/IRremote.h"
#include "../DS3231/DS3231.h"

class RGBDigit : public Adafruit_NeoPixel {
    public:
        RGBDigit(int nDigits);
        ~RGBDigit();
    private:
        int _nDigits;
        DS3231 _clock;
        IRrecv* _ir;
};

#endif

#ifndef RGBDigit_h
#define RGBDigit_h

#include <Arduino.h>
#include "Wire.h"
#include "../Adafruit_NeoPixel/Adafruit_NeoPixel.h"
#include "../IRremote/IRremote.h"
#include "../DS3231/DS3231.h"

class RGBDigit : public Adafruit_NeoPixel {
    public:
        RGBDigit(int nDigits);
        ~RGBDigit();
    private:
        int _nDigits;
        DS3231 _clock;
        IRrecv* _ir;
};

#endif

#include "RGBDigit.h"


RGBDigit::RGBDigit(int nDigits)
    : Adafruit_NeoPixel(8 * nDigits, 12, NEO_GRB + NEO_KHZ800),
    _nDigits(nDigits)
{
    _ir = new IRrecv(10);
    _ir->enableIRIn(); // Start the receiver
    Adafruit_NeoPixel::begin();
}

RGBDigit::~RGBDigit()
{
    delete _ir;
}

#include "RGBDigit.h"


RGBDigit::RGBDigit(int nDigits)
    : Adafruit_NeoPixel(8 * nDigits, 12, NEO_GRB + NEO_KHZ800),
    _nDigits(nDigits)
{
    _ir = new IRrecv(10);
    _ir->enableIRIn(); // Start the receiver
    Adafruit_NeoPixel::begin();
}

RGBDigit::~RGBDigit()
{
    delete _ir;
}

#include <Wire.h>
#include <RGBDigit.h>

RGBDigit display = RGBDigit(4);

void setup() {
    // put your setup code here, to run once:

}

void loop() {
    // put your main code here, to run repeatedly:

}

#include <Wire.h>
#include <RGBDigit.h>

RGBDigit display = RGBDigit(4);

void setup() {
    // put your setup code here, to run once:

}

void loop() {
    // put your main code here, to run repeatedly:

}

#ifndef RGBDigit_h
#define RGBDigit_h

#include <Arduino.h>
#include "Wire.h"
#include "../Adafruit_NeoPixel/Adafruit_NeoPixel.h"
#include "../IRremote/IRremote.h"
#include "../DS3231/DS3231.h"

class RGBDigit : public Adafruit_NeoPixel {
    public:
        RGBDigit(int nDigits);
        ~RGBDigit();
    private:
        int _nDigits;
        DS3231 _clock;
        IRrecv* _ir;
};

#endif

#include "RGBDigit.h"


RGBDigit::RGBDigit(int nDigits)
    : Adafruit_NeoPixel(8 * nDigits, 12, NEO_GRB + NEO_KHZ800),
    _nDigits(nDigits)
{
    _ir = new IRrecv(10);
    _ir->enableIRIn(); // Start the receiver
    Adafruit_NeoPixel::begin();
}

RGBDigit::~RGBDigit()
{
    delete _ir;
}

#include <Wire.h>
#include <RGBDigit.h>

RGBDigit display = RGBDigit(4);

void setup() {
    // put your setup code here, to run once:

}

void loop() {
    // put your main code here, to run repeatedly:

}

#ifndef RGBDigit_h
#define RGBDigit_h

#include <Arduino.h>
#include "Wire.h"
#include "../Adafruit_NeoPixel/Adafruit_NeoPixel.h"
#include "../IRremote/IRremote.h"
#include "../DS3231/DS3231.h"

class RGBDigit : public Adafruit_NeoPixel {
    public:
        RGBDigit(int nDigits);
        ~RGBDigit();
    private:
        int _nDigits;
        DS3231 _clock;
        IRrecv* _ir;
};

#endif

#include "RGBDigit.h"


RGBDigit::RGBDigit(int nDigits)
    : Adafruit_NeoPixel(8 * nDigits, 12, NEO_GRB + NEO_KHZ800),
    _nDigits(nDigits)
{
    _ir = new IRrecv(10);
    _ir->enableIRIn(); // Start the receiver
    Adafruit_NeoPixel::begin();
}

RGBDigit::~RGBDigit()
{
    delete _ir;
}

#include <Wire.h>
#include <RGBDigit.h>

RGBDigit display = RGBDigit(4);

void setup() {
    // put your setup code here, to run once:

}

void loop() {
    // put your main code here, to run repeatedly:

}

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edited Sep 5, 2015 at 8:07

Ralph

3
3

And this is my Arduino sketch:

#include <Wire.h>
#include <RGBDigit.h>

RGBDigit display = RGBDigit(4);

void setup() {
    // put your setup code here, to run once:

}

void loop() {
    // put your main code here, to run repeatedly:

}

I get al lot of "undefined reference" errors:

And this is my Arduino sketch:

#include <Wire.h>
#include <RGBDigit.h>

RGBDigit display = RGBDigit(4);

void setup() {
    // put your setup code here, to run once:

}

void loop() {
    // put your main code here, to run repeatedly:

}

I get al lot of "undefined reference" errors:

Source Link

asked Sep 5, 2015 at 7:55

Ralph

3
3

Inheritance: error in calling the constructor of the base class?

I want to write a library for the RGBDigit shield (http://rgbdigit.com/), which essentially is an Adafruit Neopixel strip, packed as a 7 segment display. The shield also has a DS3231 clock and an IR receiver.

So my plan was to make a class RGBDigit, which inherits from the Adafruit_NeoPixel class and add private objects DS3231 and IRrecv.

This is my RGBDigit.h:

#ifndef RGBDigit_h
#define RGBDigit_h

#include <Arduino.h>
#include "Wire.h"
#include "../Adafruit_NeoPixel/Adafruit_NeoPixel.h"
#include "../IRremote/IRremote.h"
#include "../DS3231/DS3231.h"

class RGBDigit : public Adafruit_NeoPixel {
    public:
        RGBDigit(int nDigits);
        ~RGBDigit();
    private:
        int _nDigits;
        DS3231 _clock;
        IRrecv* _ir;
};

#endif

This is RGBDigit.cpp:

#include "RGBDigit.h"


RGBDigit::RGBDigit(int nDigits)
    : Adafruit_NeoPixel(8 * nDigits, 12, NEO_GRB + NEO_KHZ800),
    _nDigits(nDigits)
{
    _ir = new IRrecv(10);
    _ir->enableIRIn(); // Start the receiver
    Adafruit_NeoPixel::begin();
}

RGBDigit::~RGBDigit()
{
    delete _ir;
}

I get al lot of "undefined reference" errors:

RGBDigit/RGBDigit.cpp.o: In function `RGBDigit::RGBDigit(int)':
/home/ralph/Arduino/libraries/RGBDigit/RGBDigit.cpp:23: undefined reference to `Adafruit_NeoPixel::Adafruit_NeoPixel(unsigned int, unsigned char, unsigned char)'
/home/ralph/Arduino/libraries/RGBDigit/RGBDigit.cpp:23: undefined reference to `DS3231::DS3231()'
/home/ralph/Arduino/libraries/RGBDigit/RGBDigit.cpp:25: undefined reference to `IRrecv::IRrecv(int)'
/home/ralph/Arduino/libraries/RGBDigit/RGBDigit.cpp:26: undefined reference to `IRrecv::enableIRIn()'
/home/ralph/Arduino/libraries/RGBDigit/RGBDigit.cpp:27: undefined reference to `Adafruit_NeoPixel::begin()'
RGBDigit/RGBDigit.cpp.o: In function `RGBDigit::~RGBDigit()':
/home/ralph/Arduino/libraries/RGBDigit/RGBDigit.cpp:30: undefined reference to `Adafruit_NeoPixel::~Adafruit_NeoPixel()'
collect2: error: ld returned 1 exit status

But I don' t understand why. What am I doing wrong?

class

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Inheritance: error in calling the constructor of the base class?