DHT.h

#ifndef __DHT_H__
#define __DHT_H__

/*
 * DHT Sensor for AVR-GCC Family
 *
 * Author      : David Feng
 * Updated     : June 26th, 2018
 * Description : DHT Sensor Library for AVR-GCC compiler
 * Usage       : Use library with AVR-GCC for Atmega family of microcontrollers (tested with Atmega 1284)
 */

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

//Port where DHT sensor is connected
#define DHT_DDR DDRD
#define DHT_PORT PORTD
#define DHT_PIN PIND
#define DHT_INPUTPIN 2

//Define sensor type
#define DHT_DHT11 0
#define DHT_DHT22 1
#define DHT_TYPE DHT_DHT22

//timeout retries
#define DHT_TIMEOUT 200

//functions
#if DHT_TYPE == 1
extern int8_t dht_GetTempUtil(uint16_t *temperature, uint16_t *humidity);
#elif DHT_TYPE == 0
extern int8_t dht_GetTempUtil(int8_t *temperature, int8_t *humidity);
#endif

#endif