ultrasonic.h

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#ifndef ULTRASONIC_H // Include guard.
#define ULTRASONIC_H
 
// Definitions
// -----------------------------------------------------------------------------
//
 
#define ULTRASONIC_TIMEOUT 26100
#define ULTRASONIC_TRIG_PULSE_US 10 // End of ultrasonic_constants group.
 
#define ULTRASONIC_PULSE_TO_CM(x) (x / 29. / 2.)
 
#define ULTRASONIC_PULSE_TO_IN(x) (x / 74. / 2.)
 // End of ultrasonic_macros group.
 
// Function prototypes
// -----------------------------------------------------------------------------
//
 
void     ultrasonic_init_pins(uint trig_pin, uint echo_pin);
uint64_t ultrasonic_get_cm(uint trig_pin, uint echo_pin);
uint64_t ultrasonic_get_in(uint trig_pin, uint echo_pin);
 
#endif // ULTRASONIC_H
 
// End of file driver/ultrasonic/ultrasonic.h.