LD5161B.h

#include <PCF8574.h>

class LD5161B {
  private:
    PCF8574 expander;

    /**
     * Shows number "0".
     * 
     * @return void
     */
    void displayZero();

    /**
     * Shows number "1".
     * 
     * @return void
     */
    void displayOne();

    /**
     * Shows number "2".
     * 
     * @return void
     */
    void displayTwo();

    /**
     * Shows number "3".
     * 
     * @return void
     */
    void displayThree();

    /**
     * Shows number "4".
     * 
     * @return void
     */
    void displayFour();

    /**
     * Shows number "5".
     * 
     * @return void
     */
    void displayFive();

    /**
     * Shows number "6".
     * 
     * @return void
     */
    void displaySix();

    /**
     * Shows number "7".
     * 
     * @return void
     */
    void displaySeven();

    /**
     * Shows number "8".
     * 
     * @return void
     */
    void displayEight();

    /**
     * Shows number "9".
     * 
     * @return void
     */
    void displayNine();

  public:
    /**
     * The default constructor. Allows creating an empty array with
     * LD5161B objects.
     * 
     * @constructor
     */
    LD5161B();

    /**
     * @param uint8_t deviceAddress Address to the expander.
     */
    LD5161B(const uint8_t deviceAddress);


    /**
     * Turns off all the LEDs.
     * 
     * @return void
     */
    void off();

    /**
     * Shows given number on 7. segment display.
     * 
     * @param unsigned short number Number to display.
     * @return void
     */
    void show(const unsigned short number);
};