STM32系統(tǒng)操作溫濕度模塊并通過TFTLCD屏顯示源程序

ID:516571 · 發(fā)表于 2019-6-13 10:54

DHT11傳感器的數(shù)據(jù)口接在PG11管腳，電源接入開發(fā)板上電源上，多大的電壓取決于你的DHT11傳感器模塊供電電壓。

單片機源程序如下:

#include "system.h"
#include "SysTick.h"
#include "led.h"
#include "usart.h"
#include "tftlcd.h"
#include "dht11.h"
#include "smog.h"
#include "adc.h"
#include "sys.h"
#include "delay.h"
void data_pros() //數(shù)據(jù)處理函數(shù)
{
u8 t;
u32 temp_val=0;
u8 temp;
u8 humi;
u8 temp_buf[3],humi_buf[3];
DHT11_Read_Data(&temp,&humi);
temp_buf[0]=temp/10+0x30;
temp_buf[1]=temp%10+0x30;
temp_buf[2]='\0';
LCD_ShowString(55,60,tftlcd_data.width,tftlcd_data.height,16,temp_buf);
humi_buf[0]=humi/10+0x30;
humi_buf[1]=humi%10+0x30;
humi_buf[2]='\0';
LCD_ShowString(55,80,tftlcd_data.width,tftlcd_data.height,16,humi_buf);
for(t=0;t<SMOG_READ_TIMES;t++)
{
temp_val+=Get_Adc(SMOG_ADC_CHX); //讀取ADC值
delay_ms(5);
}
temp_val/=SMOG_READ_TIMES;//得到平均值
printf("Smog_ADC_Val:%d\r\n", temp_val);
// return (u16)temp_val;
}
int main()
{
u8 i=0;
u16 adcx1,adcx2;
float temp;
delay_init(); //延時函數(shù)初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//設(shè)置中斷優(yōu)先級分組為組2：2位搶占優(yōu)先級，2位響應(yīng)
SysTick_Init(72);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //中斷優(yōu)先級分組分2組
LED_Init();
USART1_Init(9600);
USART1_Init(115200); //串口初始化為115200
TFTLCD_Init(); //LCD初始化
Smog_Init();
Adc_Init(); //ADC初始化
LCD_Clear(BLACK);
FRONT_COLOR=GREEN;
LCD_ShowString(10,10,tftlcd_data.width,tftlcd_data.height,16," STM32F103ZET6");
LCD_ShowString(10,30,tftlcd_data.width,tftlcd_data.height,16,"DHT11 Test");
LCD_ShowString(10,60,tftlcd_data.width,tftlcd_data.height,16,"Temp: C");
LCD_ShowString(10,80,tftlcd_data.width,tftlcd_data.height,16,"Humi: %RH");
LCD_DrawLine( 0, 100, 279, 100);
FRONT_COLOR=BLUE;//設(shè)置字體為藍(lán)色
LCD_ShowString(60,130,200,16,16,"ADC_CH0_VAL:");
LCD_ShowString(60,150,200,16,16,"ADC_CH0_VOL:0.000V");
LCD_ShowString(60,190,200,16,16,"ADC_CH0_VAL:");
LCD_ShowString(60,210,200,16,16,"ADC_CH0_VOL:0.000V");
FRONT_COLOR=RED;
while(DHT11_Init()) //檢測DHT-11是否存在
{
LCD_ShowString(130,30,tftlcd_data.width,tftlcd_data.height,16,"Error ");
delay_ms(500);
}
LCD_ShowString(130,30,tftlcd_data.width,tftlcd_data.height,16,"Success");
while(1)
{
i++;
if(i%20==0)
{
led1=!led1;
data_pros(); //讀取一次DHT11數(shù)據(jù)最少要大于100ms
}
delay_ms(10);
}
while(1)
{
adcx1=Get_Adc_Average(ADC_Channel_10,10);
LCD_ShowxNum(156,130,adcx1,4,16,0);//顯示ADC的值
temp=(float)adcx1*(3.3/4096);
adcx1=temp;
LCD_ShowxNum(156,150,adcx1,1,16,0);//顯示電壓值
temp-=adcx1;
temp*=1000;
LCD_ShowxNum(172,150,temp,3,16,0X80);
adcx2=Get_Adc_Average(ADC_Channel_11,10);
LCD_ShowxNum(156,190,adcx2,4,16,0);//顯示ADC的值
temp=(float)adcx2*(3.3/4096);
adcx2=temp;
LCD_ShowxNum(156,210,adcx2,1,16,0);//顯示電壓值
temp-=adcx2;
temp*=1000;
LCD_ShowxNum(172,210,temp,3,16,0X80);
delay_ms(250);
}
}