sys_sensors.h

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#ifndef __SYS_SENSORS_H__
#define __SYS_SENSORS_H__

#define SIZE_OF_SENSOR_DATA_IN_BYTE      8

//------------------------------- DATA & SCK -----------------------------------
#define SHT11_SDA_SET_TO_OUTPUT_PIN()   (SENSOR_SHT11_PORT(DIR) |=  BV(SENSOR_SHT11_SDA_PIN))   /* SDA Output=0 */
#define SHT11_SDA_SET_TO_INPUT_PIN()    (SENSOR_SHT11_PORT(DIR) &= ~BV(SENSOR_SHT11_SDA_PIN))   /* SDA Input */
#define SHT11_IS_SDA_HIGH               (SENSOR_SHT11_PORT(IN)  &   BV(SENSOR_SHT11_SDA_PIN))

#define SHT11_SCL_LOW()    (SENSOR_SHT11_PORT(OUT) &= ~BV(SENSOR_SHT11_SCL_PIN))        /* SCL Output=0 */
#define SHT11_SCL_HIGH()   (SENSOR_SHT11_PORT(OUT) |=  BV(SENSOR_SHT11_SCL_PIN))        /* SCL Output=1 */

// (n * 1ms) delay @ 12MHz
#define SHT11_TIMING_DELAY(n)  do{                                      \
    for(int z = 0 ; z < n ; z++){                                       \
        __delay_cycles(12000);                                          \
    }                                                                   \
}while(0)    

//----------------------------- SHT11 commands ---------------------------------
#define STATUS_REG_W   0x06     
#define STATUS_REG_R   0x07     
#define MEASURE_TEMP   0x03     
#define MEASURE_HUMI   0x05     
#define RESET          0x1E     

typedef struct{
    unsigned int uiTemperature;     // 2 bytes
    unsigned int uiHumidity;        // 2 bytes
    unsigned int uiLightTSR;        // 2 bytes
    unsigned int uiLightPAR;        // 2 bytes
}sensors_s;     // 8 bytes

typedef union{
    sensors_s       stSensors;          // 8 bytes
    unsigned char   ucSingleByte[8];    // 8 bytes
}cleon_sensor_data_u;   // 8 bytes

void         SYS_SENSORS_Init(void);
void         SYS_SENSORS_SHT11_Init(void);
void         SYS_SENSORS_SHT11_On(void);
void         SYS_SENSORS_SHT11_Off(void);
unsigned int SYS_SENSORS_SHT11_ReadTemperature(void);
unsigned int SYS_SENSORS_SHT11_ReadHumidity(void);
unsigned int SYS_SENSORS_SHT11_Command(unsigned char ucCommand);

void         SYS_SENSORS_S1087_Init(void);
unsigned int SYS_SENSORS_S1087_Read(void);

void         SYS_SENSORS_S108701_Init(void);
unsigned int SYS_SENSORS_S108701_Read(void);


#endif