max7219.h

Go to the documentation of this file.

/******************************************************************/
#ifndef MAX7219_H
#define MAX7219_H

#include <Arduino.h>


typedef struct
{
    uint8_t device_number;
    uint8_t decode_mode;
    uint8_t intensity;
    uint8_t scan_limit;
}max7219_configuration_t;


class Max7219
{
    public:
    
    typedef enum
    {
        MAX7219_NO_OP = 0,
        MAX7219_DIGIT_0,
        MAX7219_DIGIT_1,
        MAX7219_DIGIT_2,
        MAX7219_DIGIT_3,
        MAX7219_DIGIT_4,
        MAX7219_DIGIT_5,
        MAX7219_DIGIT_6,
        MAX7219_DIGIT_7,
        MAX7219_DECODE_MODE,
        MAX7219_INTENSITY,
        MAX7219_SCAN_LIMIT,
        MAX7219_SHUTDOWN,
        MAX7219_DISPLAY_TEST = 15
    }max7219_register_e;
    
    
    typedef enum
    {
        MAX7219_INTENSITY_0 = 0,
        MAX7219_INTENSITY_1,
        MAX7219_INTENSITY_2,
        MAX7219_INTENSITY_3,
        MAX7219_INTENSITY_4,
        MAX7219_INTENSITY_5,
        MAX7219_INTENSITY_6,
        MAX7219_INTENSITY_7,
        MAX7219_INTENSITY_8,
        MAX7219_INTENSITY_9,
        MAX7219_INTENSITY_A,
        MAX7219_INTENSITY_B,
        MAX7219_INTENSITY_C,
        MAX7219_INTENSITY_D,
        MAX7219_INTENSITY_E,
        MAX7219_INTENSITY_F
    }max7219_intensity_e;
    
    
    typedef enum
    {
        MAX7219_SCAN_1 = 0,
        MAX7219_SCAN_2,
        MAX7219_SCAN_3,
        MAX7219_SCAN_4,
        MAX7219_SCAN_5,
        MAX7219_SCAN_6,
        MAX7219_SCAN_7,
        MAX7219_SCAN_8
    }max7219_scan_limit_e;
        
    
    /**********************************************************/
    Max7219();
    
    
    /**********************************************************/
    void begin(uint8_t mosi, uint8_t sclk, uint8_t cs);
    
    
    /**********************************************************/
    void end();
    
    
    /**********************************************************/
    uint8_t set_num_devices(uint8_t num_devices);
    
    
    /**********************************************************/
    void set_display_test(void);
    
    
    /**********************************************************/
    void clear_display_test(void);
    
    
    /**********************************************************/
    uint8_t init_device(max7219_configuration_t config);
    
    
    /**********************************************************/
    void init_display(max7219_configuration_t config);
    
    
    /**********************************************************/
    uint8_t enable_device(uint8_t device_number);
    
    
    /**********************************************************/
    void enable_display(void);
    
    
    /**********************************************************/
    uint8_t disable_device(uint8_t device_number);
    
    
    /**********************************************************/
    void disable_display(void);
    
    
    /**********************************************************/
    uint8_t write_digit(uint8_t device_number, uint8_t digit, uint8_t data);
    
    
    /**********************************************************/
    uint8_t clear_digit(uint8_t device_number, uint8_t digit);
    
    
    /**********************************************************/
    uint8_t device_all_on(uint8_t device_number);
    
    
    /**********************************************************/
    uint8_t device_all_off(uint8_t device_number);
    
    
    /**********************************************************/
    void display_all_on(void);
    
    
    /**********************************************************/
    void display_all_off(void);
    
      
    private:

    uint8_t _mosi;
    uint8_t _sclk;
    uint8_t _cs;
    uint8_t _num_devices; 
   
};
#endif /* MAX7219_H*/