#ifndef __SIM900A_H
#define __SIM900A_H			  	 


#include "delay.h"
#include "key.h"
#include "sys.h"
#include "usart.h"
#include "string.h"
#include <wchar.h>
#include "math.h"
#include "stdio.h"


void DelaySec(int sec);
int  SIM900aAnswer(const char *restrict);
void SIM900aInit(void);
void SIM900aSend(char* str);

#endif