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int main(void)
{
	char str[] = "";
	u16 PM = 0; 
	DHT11_Data_TypeDef DHT11_Data;
	
	delay_init();
	NVIC_Configuration();
	uart_init(115200);
	GP2Y_Adc_Init();  //ADC初始化     
	OLED_Init();
	OLED_ColorTurn(0);//0正常显示，1 反色显示
	OLED_DisplayTurn(0);//0正常显示 1 屏幕翻转显示

	OLED_Refresh();
	OLED_ShowString(2,2,"PM2.5:",16); 
	OLED_ShowString(12,20,"TEM:",16); 
	OLED_ShowString(12,38,"HUM:",16); 
	
	OLED_ShowString(90,2,"ug/m3",12); //PM2.5单位 ug/m3
	OLED_ShowChinese(100,20,0,16); //温度单位 ℃
	OLED_ShowChar(100,38,'%',16);  //湿度单位 %
	
	while(1)
	{
		/* 粉尘传感器获取数据*/
		PM = GetGP2YSingleValue();       //得到pm2.5值 
		if(PM < 10)
			sprintf(str, " %d ",PM);
		else if(PM < 100)
			sprintf(str, "%d ",PM);
		else
			sprintf(str, "%d",PM);
		OLED_ShowString(60,2,(u8 *)str,16);
		
		/* 温湿度传感器获取数据*/
		if( Read_DHT11(&DHT11_Data)==SUCCESS)
		{
			sprintf(str, "%d.%d ℃ ",DHT11_Data.temp_int,DHT11_Data.temp_deci);
			OLED_ShowString(60,20,(u8 *)str,16);
			sprintf(str, "%d.%d",DHT11_Data.humi_int,DHT11_Data.humi_deci);
			OLED_ShowString(60,38,(u8 *)str,16);
		}
		else
		{
			printf("Read DHT11 ERROR!\r\n");//读取数据失败，串口打印：Read DHT11 ERROR.
		}

		OLED_Refresh();
		delay_ms(1000);
	}
}