#include <avr/io.h>
#include <stdio.h>
#include "i2cmaster.h"

#define hih9131  0x27

void THSense(void);

int main(void)
{
	i2c_init();                             // initialize I2C library
	THSense();
}


void THSense(void) {
	unsigned char ret;

	// write 0x75 to EEPROM address 5 (Byte Write)
	i2c_start_wait(hih9131+I2C_WRITE);     // set device address and write mode
	i2c_write(0x05);                        // write address = 5
	i2c_write(0x75);                        // write value 0x75 to EEPROM
	i2c_stop();                             // set stop conditon = release bus


	// read previously written value back from EEPROM address 5
	i2c_start_wait(hih9131+I2C_WRITE);     // set device address and write mode

	i2c_write(0x05);                        // write address = 5
	i2c_rep_start(hih9131+I2C_READ);       // set device address and read mode

	ret = i2c_readNak();                    // read one byte from EEPROM
	i2c_stop();
}