/* Example code of using htu21d.h
   Israel Herrera
   20/03/2025
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//Aditional librarys
#include <errno.h>
#include <fcntl.h> 
#include "htu21d.h"

#define I2C_PATH "/dev/i2c-%d"
#define I2C_PORT 2
int main(){
	char filePath[20];
	snprintf(filePath, sizeof(filePath), I2C_PATH, I2C_PORT );
	int fd = open(filePath, O_RDWR);

	if(fd<0){
		fprintf(stderr, "Error: Unable to access HTU21D sensor: %s",strerror(errno));
		exit(-1);
	}
	//measurements
	double temperature=0;
	double humidity=0;
	if((getTemp(fd, &temperature)<0)||(getHum(fd, &humidity)<0)){
		fprintf(stderr,"Error -404: Measurments not read");
		exit(-1);
	}

	
	//printf("HTU21D Module \n");
	//printf("%5.2fC \n", temperature);
	//printf("%5.2fC \n", humidity);
	printf("{");
	printf("\"temperature\": %5.2f,", temperature);
	printf("\"humidity\": %5.2f", humidity);
	printf("}");
	return 0;

}