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#ifndef _ANALOG_H_

#define _ANALOG_H_

#define LWHITE     0

#define LGREY      1

#define LBLACK     2

#define CENTER     3

#define NOLINE   -42

#define LINELOST  -1

#define NOBARCODE     -2

#define INTERSECTION -25

#define FULL_LINE    -26

#define ADC_HEIGHT 0

#define ADC_LINE   1

void analog_init(void);

int analog_read(int which);

int line_read_pos(void);

void line_set_threshold_high(uint8_t threshhold);

void line_set_threshold_low(uint8_t threshhold);

#endif