tm_stm32f4_hcsr04.h

#ifndef TM_HCSR04_H
#define TM_HCSR04_H 200

#include "stm32f4xx.h"
#include "defines.h"
#include "tm_stm32f4_delay.h"
#include "tm_stm32f4_gpio.h"

/* Default timeout pulses */
#ifndef HCSR04_TIMEOUT
#define HCSR04_TIMEOUT          1000000
#endif

#define HCSR04_NUMBER           ((float)0.0171821)

typedef struct {
    float Distance;              
    GPIO_TypeDef* ECHO_GPIOx;    
    uint16_t ECHO_GPIO_Pin;      
    GPIO_TypeDef* TRIGGER_GPIOx; 
    uint16_t TRIGGER_GPIO_Pin;   
} TM_HCSR04_t;

uint8_t TM_HCSR04_Init(TM_HCSR04_t* HCSR04, GPIO_TypeDef* ECHO_GPIOx, uint16_t ECHO_GPIO_Pin, GPIO_TypeDef* TRIGGER_GPIOx, uint16_t TRIGGER_GPIO_Pin);

float TM_HCSR04_Read(TM_HCSR04_t* HCSR04);

/* C++ detection */
#ifdef __cplusplus
}
#endif

#endif