[活动] 【DFRobot 云雀气象仪】学习笔记02（LCD显示云雀气象仪数据）

qzc0927 2023-11-12 15:46 楼主

## 7：单片机串口接收气象数据

### 7.1：串口数据处理

为了能够接收云雀气象仪的数据，我们实用串口通讯来实现数据处理，单片机采用STM32单片机,使用PA9和PA10的串口功能实现。首先初始化串口引脚功能，具体实现方式如下：

```C
void Bsp_USART1_Init(unsigned intbound)
{
  //GPIO端口设置
  GPIO_InitTypeDef GPIO_InitStructure;
  USART_InitTypeDef USART_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE); //使能USART1，GPIOA时钟

//USART1_TX GPIOA.9
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
  GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.9

//USART1_RX GPIOA.10初始化
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//PA10
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空输入
  GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.10

//Usart1 NVIC 配置
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3 ; //抢占优先级3
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;  //子优先级3
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;   //IRQ通道使能
  NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器

//USART 初始化设置

USART_InitStructure.USART_BaudRate = bound;//串口波特率
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位
  USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式

USART_Init(USART1, &USART_InitStructure); //初始化串口1

/* CPU的小缺陷：串口配置好，如果直接Send，则第1个字节发送不出去，如下语句解决第1个字节无法正确发送出去的问题 */
  /* 清发送完成标志，Transmission Complete flag */
  USART_ClearFlag(USART2, USART_FLAG_TC);

USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//开启串口接受中断
  USART_Cmd(USART1, ENABLE);      //使能串口1

}
```

接着配置串口中断接收数据处理，我这里实用普通的串口中断，当然也可以实用串口空闲中断接收：

```
void USART1_IRQHandler(void)
{
  unsigned char dat;

/*使用串口中断接收，不是串口空闲中断*/
  if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
  {
  dat = USART_ReceiveData(USART1);
  CBUF_Push(RxBuffer1, dat);
  USART_ClearITPendingBit(USART1, USART_IT_RXNE);

}
}
```

再者，串口定时发送获取气象数据命令来获取气象数据，这里有温度，湿度，风向，风速，海拔，气压等6个参数。

```C
/*获取天气数据状态机*/
voidGet_Weather_Info_StateMachine(void)
{
//    staticunsigned char timeCount=0;
//    timeCount++;
//    if(timeCount==20)
//    {
//        timeCount =0;
//    }

/*状态切换*/
    state++;
    
    switch(state)
  {
        case STATE_TEMP:
            USART1_DMA_Send(get_temp_cmd,sizeof(get_temp_cmd));
//            state = STATE_HUMI;
            break;
        case STATE_HUMI:
            USART1_DMA_Send(get_humi_cmd,sizeof(get_humi_cmd));
            break;
        case STATE_WINDSPEED:
            USART1_DMA_Send(get_windSpeed_cmd,sizeof(get_windSpeed_cmd));
            break;
        case STATE_WINDDIR:
            USART1_DMA_Send(get_windDir_cmd,sizeof(get_windDir_cmd));
            break;
        case STATE_ALTITUDE:
            USART1_DMA_Send(get_altitude_cmd,sizeof(get_altitude_cmd));
            break;
        case STATE_PRESSURE:
            USART1_DMA_Send(get_pressure_cmd,sizeof(get_pressure_cmd));

break;
        default :
            break;
    }        
}
```

最后，进行数据解析，将保存好的数据放入到指定字符串下。

```
voidUSART1_IRQ_VerityFun(void)
{
  unsigned char strLen=0;
    unsigned char i=0;
  if(flagFrame)    //帧接收完成标志，即接收到一帧新数据
  {
  flagFrame=0;   //帧接收完成标志清零

strLen = CBUF_Len(RxBuffer1);
  if(strLen>ResDataPackageLen)
  {
            RTT_LOG("len=%d",strLen);
            for(i=0;i<strLen;i++)
            {
                RTT_LOG("%c",RxBuffer1.m_entry[i]);
            }

switch(state)
            {
                case STATE_TEMP:
                    memcpy(tempBuf, (u8*)&RxBuffer1.m_entry[ResDataPackageLen], strLen-ResDataPackageLen);
                    RTT_LOG("%s",tempBuf);
                    break;
                case STATE_HUMI:
                    memcpy(humiBuf, (u8*)&RxBuffer1.m_entry[ResDataPackageLen], strLen-ResDataPackageLen);
                    RTT_LOG("%s",humiBuf);
                    break;
                case STATE_WINDSPEED:
                    memcpy(windSpeedBuf, (u8*)&RxBuffer1.m_entry[ResDataPackageLen], strLen-ResDataPackageLen);
                    RTT_LOG("%s",windSpeedBuf);
                    break;
                case STATE_WINDDIR:
                    memcpy(windDirBuf, (u8*)&RxBuffer1.m_entry[ResDataPackageLen], strLen-ResDataPackageLen);
                    RTT_LOG("%s",windDirBuf);
                    break;
                case STATE_ALTITUDE:
                    memcpy(altitudeBuf, (u8*)&RxBuffer1.m_entry[ResDataPackageLen], strLen-ResDataPackageLen);
                    RTT_LOG("%s",altitudeBuf);
                    break;
                case STATE_PRESSURE:
                    RTT_LOG("------");
                    memcpy(pressureBuf, (u8*)&RxBuffer1.m_entry[ResDataPackageLen], strLen-ResDataPackageLen);
                    RTT_LOG("%s",pressureBuf);
                    state = STATE_IDLE;
                    break;
                default :
                    break;
            }                
    USART1_Clear();
  }
        else if(strLen<=ResDataPackageLen)
        {
            USART1_Clear();
        }
        else
        {
        
        }
  }

}
```

### 7.2：LCD显示驱动

数据显示，我采用1.77寸LCD显示气象数据。

1.77寸TFT LCD液晶显示屏采用高透光率玻璃基板，配以低功耗驱动IC电路设计而成。其外观尺寸为17英寸×11英寸×2.44厘米（长×宽×厚），重量约为0.45千克。

![image-20231112151105092](https://boreyun.oss-cn-shanghai.aliyuncs.com/image-20231112151105092.png)

（1）该款LCD液晶屏采用了高透光率的玻璃基板，使屏幕画面清晰明亮、层次分明、色彩丰富艳丽；同时由于采用了低功耗驱动IC电路设计而成，使得整机耗电量大大降低，从而降低了用户的使用成本。

首先编写LCD驱动显示函数：具体代码如下：

```c
#include "main.h"
#include "Lcd_Driver.h"
#include "LCD_Config.h"
//#include "delay.h"
#include "stdlib.h"//函数调用头文件
#include "stdio.h" //为了解除sprintf警告
#include "LCD_calculate.h"
//#include "global.h"

//液晶IO初始化配置
void LCD_GPIO_Init(void)
{

GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOA, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;//开漏输出
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin =GPIO_Pin_15;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;//开漏输出
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

}

//向SPI总线传输一个8位数据
voidSPI_WriteData(unsigned char Data)
{
  unsigned char i=0;
  for(i=8;i>0;i--)
  {
  if(Data&0x80)
  LCD_SDA_SET; //输出数据
  else LCD_SDA_CLR;

LCD_SCL_CLR;
  LCD_SCL_SET;
  Data<<=1;
  }
}

//向液晶屏写一个8位指令
void Lcd_WriteIndex(unsigned char Index)
{
 //SPI 写命令时序开始
 LCD_CS_CLR;
 LCD_RS_CLR;
 SPI_WriteData(Index);
 LCD_CS_SET;
}

//向液晶屏写一个8位数据
void Lcd_WriteData(unsigned char Data)
{
 LCD_CS_CLR;
 LCD_RS_SET;
 SPI_WriteData(Data);
}
//向液晶屏写一个16位数据
void LCD_WriteData_16Bit(unsigned int Data)
{
 LCD_CS_CLR;
 LCD_RS_SET;
 SPI_WriteData(Data>>8);  //写入高8位数据
 SPI_WriteData(Data);   //写入低8位数据
 LCD_CS_SET;
}

void Lcd_WriteReg(unsigned char Index,unsigned char Data)
{
  Lcd_WriteIndex(Index);
Lcd_WriteData(Data);
}

void Lcd_Reset(void)
{
  unsigned int i;
  LCD_RST_CLR;
  //delay_ms(100);
  for(i=0;i<6000;i++);
  LCD_RST_SET;
  for(i=0;i<6000;i++);
}

//LCD Init For 1.44Inch LCD Panel with ST7735R.
void Lcd_Init(void)
{
  unsigned int i;

LCD_GPIO_Init();
  Lcd_Reset(); //Reset before LCD Init.

//LCD Init For 1.44Inch LCD Panel with ST7735R.
  Lcd_WriteIndex(0x11);//Sleep exit
  //delay_ms (120);

for(i=0;i<65000;i++);
  for(i=0;i<65000;i++);

//ST7735R Frame Rate
  Lcd_WriteIndex(0xB1);
  Lcd_WriteData(0x01);
  Lcd_WriteData(0x2C);
  Lcd_WriteData(0x2D);

Lcd_WriteIndex(0xB2);
  Lcd_WriteData(0x01);
  Lcd_WriteData(0x2C);
  Lcd_WriteData(0x2D);

Lcd_WriteIndex(0xB3);
  Lcd_WriteData(0x01);
  Lcd_WriteData(0x2C);
  Lcd_WriteData(0x2D);
  Lcd_WriteData(0x01);
  Lcd_WriteData(0x2C);
  Lcd_WriteData(0x2D);

Lcd_WriteIndex(0xB4); //Column inversion
  Lcd_WriteData(0x07);

//ST7735R Power Sequence
  Lcd_WriteIndex(0xC0);
  Lcd_WriteData(0xA2);
  Lcd_WriteData(0x02);
  Lcd_WriteData(0x84);
  Lcd_WriteIndex(0xC1);
  Lcd_WriteData(0xC5);

Lcd_WriteIndex(0xC2);
  Lcd_WriteData(0x0A);
  Lcd_WriteData(0x00);

Lcd_WriteIndex(0xC3);
  Lcd_WriteData(0x8A);
  Lcd_WriteData(0x2A);
  Lcd_WriteIndex(0xC4);
  Lcd_WriteData(0x8A);
  Lcd_WriteData(0xEE);

Lcd_WriteIndex(0xC5); //VCOM
  Lcd_WriteData(0x0E);

Lcd_WriteIndex(0x36); //MX, MY, RGB mode
  Lcd_WriteData(0xC0);

//ST7735R Gamma Sequence
  Lcd_WriteIndex(0xe0);
  Lcd_WriteData(0x0f);
  Lcd_WriteData(0x1a);
  Lcd_WriteData(0x0f);
  Lcd_WriteData(0x18);
  Lcd_WriteData(0x2f);
  Lcd_WriteData(0x28);
  Lcd_WriteData(0x20);
  Lcd_WriteData(0x22);
  Lcd_WriteData(0x1f);
  Lcd_WriteData(0x1b);
  Lcd_WriteData(0x23);
  Lcd_WriteData(0x37);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x07);
  Lcd_WriteData(0x02);
  Lcd_WriteData(0x10);

Lcd_WriteIndex(0xe1);
  Lcd_WriteData(0x0f);
  Lcd_WriteData(0x1b);
  Lcd_WriteData(0x0f);
  Lcd_WriteData(0x17);
  Lcd_WriteData(0x33);
  Lcd_WriteData(0x2c);
  Lcd_WriteData(0x29);
  Lcd_WriteData(0x2e);
  Lcd_WriteData(0x30);
  Lcd_WriteData(0x30);
  Lcd_WriteData(0x39);
  Lcd_WriteData(0x3f);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x07);
  Lcd_WriteData(0x03);
  Lcd_WriteData(0x10);

Lcd_WriteIndex(0x2a);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x7f);

Lcd_WriteIndex(0x2b);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x00);
  Lcd_WriteData(0x9f);

Lcd_WriteIndex(0xF0); //Enable test command
  Lcd_WriteData(0x01);
  Lcd_WriteIndex(0xF6); //Disable ram power save mode
  Lcd_WriteData(0x00);

Lcd_WriteIndex(0x3A); //65k mode
  Lcd_WriteData(0x05);

Lcd_WriteIndex(0x29);//Display on
}

/*************************************************
函数名：LCD_Set_Region
功能：设置lcd显示区域，在此区域写点数据自动换行
入口参数：xy起点和终点
返回值：无
*************************************************/
void Lcd_SetRegion(unsigned int x_start,unsigned int y_start,unsigned int x_end,unsigned int y_end)
{
  Lcd_WriteIndex(0x2a);
  Lcd_WriteData(0x00);
  Lcd_WriteData(x_start);//Lcd_WriteData(x_start+2);
  Lcd_WriteData(0x00);
  Lcd_WriteData(x_end+2);

Lcd_WriteIndex(0x2b);
  Lcd_WriteData(0x00);
  Lcd_WriteData(y_start+0);
  Lcd_WriteData(0x00);
  Lcd_WriteData(y_end+1);

Lcd_WriteIndex(0x2c);

}

/*************************************************
函数名：LCD_Set_XY
功能：设置lcd显示起始点
入口参数：xy坐标
返回值：无
*************************************************/
void Lcd_SetXY(unsigned int x,unsigned int y)
{
  Lcd_SetRegion(x,y,x,y);
}

/*************************************************
函数名：LCD_DrawPoint
功能：画一个点
入口参数：无
返回值：无
*************************************************/
void Gui_DrawPoint(unsigned int x,unsigned int y,unsigned int Data)
{
  Lcd_SetRegion(x,y,x+1,y+1);
  LCD_WriteData_16Bit(Data);

}

/*****************************************
 函数功能：读TFT某一点的颜色
 出口参数：color点颜色值
******************************************/
unsigned int Lcd_ReadPoint(unsigned int x,unsigned int y)
{
unsigned int Data;
Lcd_SetXY(x,y);
Lcd_WriteData(Data);
return Data;
}
/*************************************************
函数名：Lcd_Clear
功能：全屏清屏函数
入口参数：填充颜色COLOR
返回值：无
*************************************************/
void Lcd_Clear(unsigned int Color) //刷新全屏
{
 unsigned int i,m;
 Lcd_SetRegion(0,0,X_MAX_PIXEL-1,Y_MAX_PIXEL-1);
 Lcd_WriteIndex(0x2C);
 for(i=0;i<X_MAX_PIXEL;i++)
  for(m=0;m<Y_MAX_PIXEL;m++)
  {
  LCD_WriteData_16Bit(Color);
  }
}

void Lcd_Clear_1(unsigned int Color)  //刷新局部
{
 unsigned int i,m;
 Lcd_SetRegion(105,137,120,152-1);
 Lcd_WriteIndex(0x2C);
 for(i=0;i<120;i++)
  for(m=0;m<152;m++)
  {
  LCD_WriteData_16Bit(Color);
  }
}

/*
屏幕显示测试
*/

void Redraw_Mainmenu(void)
{
  Lcd_Clear(GRAY0);
  Gui_DrawFont_GBK16(15,5,BLUE,GRAY0,"实验平台");

//值的边框
  DisplayButtonUp(85,27,125,45); //x1,y1,x2,y2//TO
//DisplayButtonUp(85,49,125,67); //x1,y1,x2,y2//ONE
}

void Num_Test(void)
{
// char txt[32];
// char txt1[32];
//
//  sprintf(txt, "%d", tempdata);
//  Gui_DrawFont_GBK16(90,25,BLUE,GRAY0,txt);
//
//  sprintf(txt1, "%d", humidata);
//  Gui_DrawFont_GBK16(90,47,RED,GRAY0,txt1);
}

void Color_Test(void)
{
  unsigned int i=1;
  Lcd_Clear(GRAY0);

Gui_DrawFont_GBK16(20,10,BLUE,GRAY0,"Color Test");

while(i--)
  {
  Lcd_Clear(WHITE);
  Lcd_Clear(BLACK);
  Lcd_Clear(RED);
  Lcd_Clear(GREEN);
  Lcd_Clear(BLUE);
  }
}

//取模方式 水平扫描 从左到右 低位在前
void showimage(const unsigned char *p) //显示40*40 QQ图片
{
  int i,j,k;
  unsigned char picH,picL;
  Lcd_Clear(WHITE); //清屏

for(k=0;k<4;k++)
  {
  for(j=0;j<3;j++)
  {
    Lcd_SetRegion(40*j+2,40*k,40*j+39,40*k+39); //坐标设置
    for(i=0;i<40*40;i++)
     {
      picL=*(p+i*2);//数据低位在前
      picH=*(p+i*2+1);
      LCD_WriteData_16Bit(picH<<8|picL);
     }
   }
  }
}

void QDTFT_Test_Demo(void)
{
  // LCD_LED_SET;//通过IO控制背光亮
  Num_Test();//
}

```

其次利用取模软件，显示中文字体，

![image-20231112151720258](https://boreyun.oss-cn-shanghai.aliyuncs.com/image-20231112151720258.png)

具体字体文件如下：

```
 云(0) 雀(1) 气(2) 象(3) 仪(4) 温(5) 度(6) 湿(7)
 度(8) 风(9) 速(10) 风(11) 向(12) 海(13) 拔(14) 气(15)
 压(16)

{0xFF,0xFF,0xC0,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x01,0xFD,0xFF},
{0xFB,0xFF,0xFB,0xFF,0xF7,0xBF,0xEF,0xDF,0xDF,0xEF,0x80,0x07,0xDF,0xF7,0xFF,0xF7},/*"云",0*/
{0xFE,0xFF,0xEE,0xEF,0xEE,0xF7,0xDE,0xDB,0xBF,0x3F,0xFC,0xFF,0xF3,0x7F,0xCF,0xBF},
{0x20,0x03,0xEF,0x7F,0xE0,0x07,0xEF,0x7F,0xE0,0x07,0xEF,0x7F,0xE0,0x03,0xEF,0xFF},/*"雀",1*/
{0xEF,0xFF,0xEF,0xFF,0xC0,0x03,0xDF,0xFF,0xB0,0x0F,0x7F,0xFF,0xC0,0x0F,0xFF,0xEF},
{0xFF,0xEF,0xFF,0xEF,0xFF,0xEF,0xFF,0xEF,0xFF,0xF5,0xFF,0xF5,0xFF,0xF9,0xFF,0xFD},/*"气",2*/
{0xF7,0xFF,0xE0,0x1F,0xDF,0xDF,0x80,0x07,0x5E,0xF7,0xDD,0xF7,0xC0,0x07,0xF9,0xFF},
{0xE6,0xEF,0x9D,0x5F,0xF3,0x3F,0x8E,0x5F,0xF9,0x6F,0xE7,0x77,0x1D,0x79,0xFE,0xFF},/*"象",3*/
{0xF7,0x7F,0xF7,0xB7,0xF5,0xB7,0xED,0xF7,0xED,0xF7,0xCE,0xEF,0xCE,0xEF,0xAE,0xEF},
{0x6F,0x5F,0xEF,0x5F,0xEF,0xBF,0xEF,0xBF,0xEF,0x5F,0xEE,0xEF,0xED,0xF7,0xEB,0xF9},/*"仪",4*/
{0xFF,0xFF,0xDC,0x07,0xED,0xF7,0xED,0xF7,0x7C,0x07,0xBD,0xF7,0xBD,0xF7,0xEC,0x07},
{0xEF,0xFF,0xD8,0x03,0x1B,0x5B,0xDB,0x5B,0xDB,0x5B,0xDB,0x5B,0xD0,0x01,0xFF,0xFF},/*"温",5*/
{0xFE,0xFF,0xFF,0x7F,0xC0,0x01,0xDD,0xDF,0xDD,0xDF,0xC0,0x03,0xDD,0xDF,0xDD,0xDF},
{0xDC,0x1F,0xDF,0xFF,0xD0,0x0F,0xDB,0xEF,0xBD,0xDF,0xBE,0x3F,0x79,0xCF,0xC7,0xF1},/*"度",6*/
{0xFF,0xFF,0xD8,0x07,0xEB,0xF7,0xEB,0xF7,0x78,0x07,0xBB,0xF7,0xBB,0xF7,0xE8,0x07},
{0xEE,0xDF,0xDE,0xDF,0x16,0xDB,0xDA,0xD7,0xDC,0xCF,0xDE,0xDF,0xD0,0x01,0xFF,0xFF},/*"湿",7*/
{0xFE,0xFF,0xFF,0x7F,0xC0,0x01,0xDD,0xDF,0xDD,0xDF,0xC0,0x03,0xDD,0xDF,0xDD,0xDF},
{0xDC,0x1F,0xDF,0xFF,0xD0,0x0F,0xDB,0xEF,0xBD,0xDF,0xBE,0x3F,0x79,0xCF,0xC7,0xF1},/*"度",8*/
{0xFF,0xFF,0xC0,0x0F,0xDF,0xEF,0xDF,0xEF,0xD7,0xAF,0xDB,0xAF,0xDD,0x6F,0xDD,0x6F},
{0xDE,0xEF,0xDE,0xEF,0xDD,0x6F,0xDD,0x6D,0xDB,0xB5,0xB7,0xB5,0xBF,0xF9,0x7F,0xFD},/*"风",9*/
{0xFF,0xBF,0xDF,0xBF,0xE8,0x03,0xEF,0xBF,0xFC,0x07,0xFD,0xB7,0x0D,0xB7,0xEC,0x07},
{0xEF,0x1F,0xEE,0xAF,0xED,0xB7,0xEB,0xBB,0xEF,0xBF,0xD7,0xFF,0xB8,0x01,0xFF,0xFF},/*"速",10*/
{0xFF,0xFF,0xC0,0x0F,0xDF,0xEF,0xDF,0xEF,0xD7,0xAF,0xDB,0xAF,0xDD,0x6F,0xDD,0x6F},
{0xDE,0xEF,0xDE,0xEF,0xDD,0x6F,0xDD,0x6D,0xDB,0xB5,0xB7,0xB5,0xBF,0xF9,0x7F,0xFD},/*"风",11*/
{0xFD,0xFF,0xFB,0xFF,0xF7,0xFF,0x80,0x03,0xBF,0xFB,0xBF,0xFB,0xB8,0x3B,0xBB,0xBB},
{0xBB,0xBB,0xBB,0xBB,0xBB,0xBB,0xB8,0x3B,0xBB,0xBB,0xBF,0xFB,0xBF,0xEB,0xBF,0xF7},/*"向",12*/
{0xFE,0xFF,0xDE,0xFF,0xEE,0x03,0xED,0xFF,0x7A,0x07,0xBE,0xF7,0xB6,0xB7,0xF6,0xD7},
{0xE8,0x01,0xEE,0xF7,0x1D,0xB7,0xDD,0xD7,0xDC,0x03,0xDF,0xF7,0xDF,0xAF,0xFF,0xDF},/*"海",13*/
{0xEF,0xAF,0xEF,0xB7,0xEF,0xB7,0xEF,0xBF,0x04,0x01,0xEF,0x7F,0xEB,0x7F,0xE7,0x03},
{0xCE,0xBB,0x2E,0xBB,0xEE,0xD7,0xEE,0xD7,0xED,0xEF,0xED,0xD7,0xAB,0xBB,0xDE,0x7D},/*"拔",14*/
{0xEF,0xFF,0xEF,0xFF,0xC0,0x03,0xDF,0xFF,0xB0,0x0F,0x7F,0xFF,0xC0,0x0F,0xFF,0xEF},
{0xFF,0xEF,0xFF,0xEF,0xFF,0xEF,0xFF,0xEF,0xFF,0xF5,0xFF,0xF5,0xFF,0xF9,0xFF,0xFD},/*"气",15*/
{0xFF,0xFF,0xC0,0x01,0xDF,0xFF,0xDF,0x7F,0xDF,0x7F,0xDF,0x7F,0xDF,0x7F,0xD0,0x03},
{0xDF,0x7F,0xDF,0x7F,0xDF,0x6F,0xDF,0x77,0xDF,0x77,0xBF,0x7F,0xA0,0x01,0x7F,0xFF},/*"压",16*/
```

该字体大小是16*16，如果自己想改变字体大小的话，重新设置字体大小就行

### 7.3：实时刷新气象数据

首先实用中文显示气象数据信息：具体代码如下：

```c
void app_init(void)
{
    Lcd_Init();
    Lcd_Clear(GRAY0);     //清屏
    Gui_DrawFont_GBK16(24,0,BLUE,WHITE,"云雀气象仪:"); 
    Gui_DrawFont_GBK16(0,24,BLACK,GRAY0,"温度:");
    Gui_DrawFont_GBK16(0,48,RED,GRAY0,"湿度:");
  Gui_DrawFont_GBK16(0,72,BLUE,WHITE,"风速:");  
  Gui_DrawFont_GBK16(0,96,RED,GRAY0,"风向:");
    Gui_DrawFont_GBK16(0,120,BLUE,WHITE,"海拔:");  
  Gui_DrawFont_GBK16(0,144,BLACK,WHITE,"气压:"); 
  bsp_InitLedHard();
  
}
```

将各个气象数据信息显示出来：

```c
voidDisplay_Weather_Data(void)
{
//  Lcd_Clear(GRAY0);     //清屏

Gui_DrawFont_GBK16(40,24,BLACK,GRAY0, (char*)tempBuf);
  Gui_DrawFont_GBK16(40,48,RED,GRAY0,(char*)humiBuf);
  Gui_DrawFont_GBK16(40,72,BLUE,WHITE, (char*)windSpeedBuf);
  Gui_DrawFont_GBK16(40,96,BLUE,WHITE, (char*)windDirBuf);
    Gui_DrawFont_GBK16(40,120,BLUE,WHITE, (char*)altitudeBuf);
    Gui_DrawFont_GBK16(40,144,BLUE,WHITE, (char*)pressureBuf);
    
}
```

将此函数放入到循环任务里面显示，定时3秒刷新一次数据即可。

![image-20231112152239063](https://boreyun.oss-cn-shanghai.aliyuncs.com/image-20231112152239063.png)

具体视频为：

[各类传感器学习笔记05(LCD显示云雀气象仪传感器数据)_哔哩哔哩_bilibili](

回复评论（3）

引用: lugl4313820 发表于 2023-11-14 10:21 串口协议还是非常方便的，开发板看起来象武汉芯原的开发板呀。

是的，就是他们家的开发板

点赞 2023-11-21 21:17

[活动] 【DFRobot 云雀气象仪】学习笔记02（LCD显示云雀气象仪数据）

回复评论（3）

沙发 lugl4313820

板凳 chejm

4楼 qzc0927

[活动] 【DFRobot 云雀气象仪】学习笔记02（LCD显示云雀气象仪数据）

回复评论 （3）

沙发 lugl4313820

板凳 chejm

4楼 qzc0927

回复评论（3）