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中秋节做个带月饼的气象站多屏显示

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    [LV.6]常住居民II

    发表于 2017-10-4 16:44 | 显示全部楼层 |阅读模式
    本帖最后由 topdog 于 2017-10-30 23:57 编辑

          今天是丁酉年中秋佳节,首先祝各位网友阖家欢乐,万事如意。     
         器材清单:mcookie电池盒,core,hub,AM2321,oled。
         用到的库文件是AM2321的 https://github.com/wangdong/AM2321 ,但是文件有错误需要修改一下。notepad++打开AM2321.CPP,把AM2321温湿度计I2C地址修改为 #define I2C_ADDR_AM2321 0x5C ,设备ID的地址修改为0x08,本例不用可以不修改,还有就是温湿度的计算,按下图修改。因为从传感器读回的温湿度值是十六进制的,高位左移八位就是乘以256,再低位同
        class AirConditionReader : public DataReader<I2C_ADDR_AM2321, PARAM_AM2321_READ, REG_AM2321_HUMIDITY_MSB,0x04>{
    public:
        unsigned int humidity;
        int temperature;
    public:
        bool read() {
            if(!readRaw())
                return false;
            humidity     = buf[2] << 8|buf[3];        
            temperature  = buf[4] << 8|buf[5];      
            return true;
        }

    };
          
    在使用AM2321库时,读取温湿度前要先 ac.read(); 才能读取数据。以湿度为例 u8g2.print(float(ac.humidity)/10,1); 湿度输出除十,保留一位小数。    下面简单介绍一下I2C总线AM2321的工作步骤:

       1,唤醒
            Wire.beginTransmission(I2CADDR); 起来干活了
            Wire.endTransmission();          稍息......
       2,写入读命令
            Wire.beginTransmission(I2CADDR); 打开am2321的i2c地址0x5c
            Wire.write(COMMAND);             写入AM2321的读取命令0x03
            Wire.write(REGADDR);             AM2321温湿度起始寄存器位置0x00 ,设备信息起始位置0x08
            Wire.write(REGCOUNT);            使用寄存器长度温湿度是4个,0x00到0x04
            Wire.endTransmission();          关闭i2c总线,再见。
       3, 等待数据总线响应有个80us的间歇时间
            delayMicroseconds(1600); //>1.5ms
       4,读传回来的数据
            Wire.requestFrom(I2CADDR, 2 + REGCOUNT + 2); 前面的2个字节分别是状态码,数据长度,后面的2个字节是crc16验证码
            int i = 0;
            for (; i < 2 + REGCOUNT; ++i)      
                buf = Wire.read();                       温度高位低位,湿度高位低位,这里是4个字节。buf[2]开始。

            unsigned short crc = 0;                     
            crc  = Wire.read();       CRC低位,
    低位在前,读取crc16验证码,
            crc |= Wire.read() << 8;  CRC高位
    左移与,形成16位的crc16验证码核对数据正确。

            if (crc == crc16(buf, i))
                return true;         
    CRC验证正确输出
            return false;
          }
         5,crc16验证
         主机或传感器可用校验码进行判别接收信息是否正确。由于电子噪声或一些其它干扰,信息在传输过程中有时会发生错误,错误校验码(CRC)可以检验主机或传感器在通讯数据传送过程中的信息是否有误,错误的数据可以放弃(无论是发送还是接收),这样增加了系统的安全和效率。
         第二个用到的库是u8g2,这里强调的是字体样式的大小的查询,https://github.com/olikraus/u8g2/wiki/fntlistmono
         这是第二代oled使用的u8g库文件,@奈何 老师在《Aduino /Genuino 101开发入门》一书中详细介绍,大家可以参阅。
        程序如下:
    [kenrobot_code]//U8g2lib字体查询 https://github.com/olikraus/u8g2/wiki/fntlistmono
    //AM2321库文件 https://github.com/wangdong/AM2321

    #include <Arduino.h>
    #include <U8g2lib.h>
    #include <AM2321.h>
    #include <Wire.h>

    U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

    AM2321 ac;

    #define  Mid_Autumn_width 68
    #define  Mid_Autumn_height 64
    static const unsigned char Mid_Autumn_bits[] U8X8_PROGMEM = {
    0x00,0x00,0x00,0xFF,0xF8,0x07,0x00,0x00,0x00,0x00,0x00,0xC0,0xFF,0xFF,0x0F,0x00,0x00,0x00,0x00,0x00,
    0xF0,0x80,0x0F,0x78,0x00,0x00,0x00,0x00,0x00,0x3C,0x40,0x10,0xE0,0x01,0x00,0x00,0x00,0x00,0x03,0x20,
    0x2F,0x00,0x06,0x00,0x00,0x00,0xC0,0xF1,0xD1,0x5A,0x7C,0x0C,0x00,0x00,0x00,0x60,0x32,0x91,0x48,0x64,
    0x32,0x00,0x00,0x00,0xF0,0x11,0x9F,0xC8,0x47,0x7E,0x00,0x00,0x00,0x18,0x12,0xD1,0x5A,0x44,0xC2,0x00,
    0x00,0x00,0x14,0xF2,0xA1,0x2F,0x7C,0x02,0x01,0x00,0x00,0x12,0x00,0x40,0x10,0x00,0x02,0x02,0x00,0x00,
    0x91,0x0F,0x80,0x0F,0x80,0x6F,0x06,0x00,0x80,0x7F,0xFC,0x7F,0xF2,0xFF,0xF1,0x0F,0x00,0xC0,0x11,0x80,
    0x01,0x00,0x00,0x40,0x1C,0x00,0x40,0x1D,0x80,0x01,0x00,0x00,0xC0,0x15,0x00,0x20,0x11,0x80,0x01,0x00,
    0x00,0x40,0x24,0x00,0xD0,0x1F,0x80,0x01,0x00,0x00,0xC0,0x3F,0x00,0x50,0x00,0x80,0x01,0x02,0x00,0x00,
    0x50,0x00,0x48,0xC0,0xFF,0xFF,0x07,0x00,0x00,0xD0,0x00,0x48,0x43,0x80,0x01,0x02,0x00,0x00,0xD6,0x00,
    0x4C,0x46,0x80,0x01,0x02,0x00,0x00,0xD3,0x00,0xCC,0x44,0x80,0x01,0x02,0x00,0x00,0x99,0x01,0x4C,0x45,
    0x80,0x01,0x02,0x00,0x00,0x95,0x03,0xCA,0x47,0x80,0x01,0x02,0x00,0x00,0x9F,0x02,0x0A,0x41,0x80,0x01,
    0x02,0x00,0x00,0x84,0x02,0x06,0x41,0x80,0x01,0x02,0x00,0x00,0x04,0x03,0x06,0xC1,0xFF,0xFF,0x03,0x00,
    0x00,0x04,0x03,0xF7,0x01,0x80,0x01,0x04,0x18,0x00,0x7E,0x03,0x95,0x04,0x80,0x01,0x0E,0x18,0x00,0x49,
    0x07,0xCD,0x1A,0x80,0xC1,0x1F,0x18,0x80,0x5A,0x05,0xCD,0x17,0x80,0xF1,0x03,0x18,0x40,0x9E,0x05,0xA5,
    0x14,0x80,0x01,0x03,0x18,0x40,0xAD,0x05,0xFD,0x1E,0x80,0x01,0x03,0x18,0xC0,0xEB,0x05,0xA5,0x14,0x80,
    0x01,0x03,0x18,0x42,0xAD,0x05,0xCD,0x11,0x80,0x01,0x33,0x18,0x46,0x9E,0x05,0xD5,0x1B,0x80,0xB9,0x7F,
    0x18,0x83,0x5E,0x05,0xA5,0x14,0x80,0x01,0x03,0x18,0x01,0x29,0x05,0x87,0x11,0x80,0x80,0x83,0x98,0x00,
    0x2C,0x05,0x26,0x11,0x00,0x80,0xC3,0x58,0x00,0x44,0x07,0x12,0x11,0x00,0x40,0xED,0x38,0x00,0x84,0x02,
    0x0A,0x11,0x00,0x40,0x1B,0x3C,0x00,0x84,0x02,0xCA,0x17,0x00,0x20,0x13,0x2C,0x00,0x9F,0x01,0x4C,0x14,
    0x00,0x20,0x13,0x64,0x00,0x91,0x01,0x4C,0x14,0x00,0x10,0x03,0x44,0x00,0x91,0x01,0xF8,0x17,0x00,0x00,
    0x03,0x46,0x00,0xFF,0x00,0x48,0x10,0x00,0x08,0x03,0xC2,0x00,0x90,0x00,0x48,0x18,0x00,0x00,0x03,0x83,
    0xC1,0x50,0x00,0x50,0x10,0x00,0x00,0x83,0x81,0x43,0x50,0x00,0xF0,0x1F,0x00,0x00,0xC3,0x00,0xC7,0x3F,
    0x00,0x20,0x11,0x00,0x00,0x63,0x00,0x4E,0x24,0x00,0x40,0x19,0x00,0x00,0x13,0x00,0xDC,0x14,0x00,0xC0,
    0x11,0x00,0x00,0x01,0x00,0x00,0x0C,0x00,0x80,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x0F,0x00,0x00,0x91,0xFF,
    0x81,0x0F,0xFC,0x7F,0x06,0x00,0x00,0x12,0x02,0x40,0x10,0x00,0x02,0x02,0x00,0x00,0x14,0xFE,0xA1,0x2B,
    0xFC,0x03,0x01,0x00,0x00,0x18,0x12,0xD1,0x5A,0x44,0xC2,0x00,0x00,0x00,0xF0,0x13,0xFF,0xFF,0x47,0x7E,
    0x00,0x00,0x00,0x60,0xFE,0x91,0x48,0xFC,0x33,0x00,0x00,0x00,0x80,0x11,0xD0,0x52,0x60,0x0C,0x00,0x00,
    0x00,0x00,0x03,0x20,0x2F,0x00,0x06,0x00,0x00,0x00,0x00,0xFC,0x43,0x10,0xFE,0x01,0x00,0x00,0x00,0x00,
    0x70,0x84,0x0F,0x79,0x00,0x00,0x00,0x00,0x00,0x80,0x1F,0xC0,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,
    0xFF,0x03,0x00,0x00,0x00 };

    #define humid_width 35
    #define humid_height 48
    static const unsigned char humid_bits[] U8X8_PROGMEM = {
       0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x80,
       0x0f, 0x00, 0x00, 0x00, 0xc0, 0x1f, 0x00, 0x00, 0x00, 0xe0, 0x1d, 0x00,
       0x00, 0x00, 0xe0, 0x38, 0x00, 0x00, 0x00, 0xf0, 0x78, 0x00, 0x00, 0x00,
       0x78, 0xf0, 0x00, 0x00, 0x00, 0x38, 0xe0, 0x00, 0x00, 0x00, 0x1c, 0xe0,
       0x01, 0x00, 0x00, 0x1e, 0xc0, 0x03, 0x00, 0x00, 0x0f, 0x80, 0x03, 0x00,
       0x00, 0x07, 0x00, 0x07, 0x00, 0x80, 0x07, 0x00, 0x0f, 0x00, 0xc0, 0x03,
       0x00, 0x0e, 0x00, 0xc0, 0x01, 0x00, 0x1c, 0x00, 0xe0, 0x01, 0x00, 0x3c,
       0x00, 0xe0, 0x00, 0x00, 0x38, 0x00, 0x70, 0x00, 0x00, 0x78, 0x00, 0x78,
       0x00, 0x00, 0x70, 0x00, 0x38, 0x00, 0x00, 0xe0, 0x00, 0x38, 0x00, 0x00,
       0xe0, 0x00, 0x1c, 0x00, 0x00, 0xc0, 0x01, 0x1c, 0x00, 0x00, 0xc0, 0x01,
       0x0e, 0x00, 0x00, 0xc0, 0x03, 0x0e, 0x00, 0x00, 0x80, 0x03, 0x0e, 0x00,
       0x00, 0x80, 0x03, 0x07, 0x00, 0x00, 0x00, 0x07, 0x07, 0x00, 0x00, 0x00,
       0x07, 0x07, 0x00, 0x00, 0x00, 0x07, 0x07, 0x00, 0x00, 0x00, 0x07, 0x07,
       0x00, 0x00, 0x00, 0x07, 0x07, 0x00, 0x00, 0x00, 0x07, 0x07, 0x00, 0x00,
       0x00, 0x07, 0x07, 0x00, 0x00, 0x00, 0x07, 0x0e, 0x00, 0x00, 0x80, 0x03,
       0x0e, 0x00, 0x00, 0x80, 0x03, 0x1e, 0x00, 0x00, 0xc0, 0x03, 0x1c, 0x00,
       0x00, 0xc0, 0x01, 0x3c, 0x00, 0x00, 0xe0, 0x01, 0x78, 0x00, 0x00, 0xf0,
       0x00, 0xf0, 0x00, 0x00, 0x78, 0x00, 0xe0, 0x01, 0x00, 0x3c, 0x00, 0xc0,
       0x07, 0x00, 0x3f, 0x00, 0x80, 0x1f, 0xc0, 0x0f, 0x00, 0x00, 0xff, 0xff,
       0x07, 0x00, 0x00, 0xfc, 0xff, 0x01, 0x00, 0x00, 0xc0, 0x3f, 0x00, 0x00 };


    #define temperature_width 18
    #define temperature_height 47
    static const unsigned char temperature_bits[] U8X8_PROGMEM = {
       0xc0, 0x0f, 0x00, 0xe0, 0x1f, 0x00, 0x70, 0x38, 0x00, 0x30, 0x30, 0x00,
       0x30, 0x30, 0x00, 0x30, 0x30, 0x00, 0x30, 0x30, 0x00, 0x30, 0x30, 0x00,
       0x30, 0x30, 0x00, 0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0x30, 0x30, 0x00,
       0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0x30, 0x30, 0x00, 0x30, 0x30, 0x00,
       0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0x30, 0x30, 0x00, 0xb0, 0x37, 0x00,
       0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0x30, 0x30, 0x00, 0xb0, 0x37, 0x00,
       0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00,
       0xb0, 0x37, 0x00, 0xb0, 0x37, 0x00, 0x98, 0x67, 0x00, 0x8c, 0xc7, 0x00,
       0xc6, 0x8f, 0x01, 0xe2, 0x1f, 0x01, 0xf3, 0x3f, 0x03, 0xf3, 0x3f, 0x03,
       0xf3, 0x3f, 0x03, 0xf3, 0x3f, 0x03, 0xf3, 0x3f, 0x03, 0xf3, 0x3f, 0x03,
       0xf3, 0x3f, 0x03, 0xe6, 0x9f, 0x01, 0xc6, 0x8f, 0x01, 0x0c, 0xc0, 0x00,
       0x38, 0x70, 0x00, 0xf0, 0x3f, 0x00, 0xc0, 0x0f, 0x00 };

    void drawMidAutumn(void) {   
      u8g2.drawXBMP( 30,0,  Mid_Autumn_width, Mid_Autumn_height,  Mid_Autumn_bits);
    }

    void drawTemp(void) {  
      u8g2.setFont(u8g2_font_amstrad_cpc_extended_8u );
      u8g2.setCursor(0, 10);
      u8g2.print("TEMPERATURE  1/2");

      u8g2.setFont(u8g2_font_profont29_mn);

      u8g2.setCursor(0, 50);
      ac.read();   
      u8g2.print(float(ac.temperature)/10,1);
      u8g2.setFont(u8g2_font_pxplusibmvga8_m_all);
      u8g2.drawStr(70, 50,"C");

      // 温度标志
      u8g2.drawCircle(67, 40, 2);
      
      // 温度计图形
      u8g2.drawXBMP(100, 16, temperature_width, temperature_height, temperature_bits);
      
    }

    void drawHumid(void) {   
      u8g2.setFont(u8g2_font_amstrad_cpc_extended_8u );
      u8g2.setCursor(0,10);
      u8g2.print("HUMIDITY     2/2");

      u8g2.setFont(u8g2_font_profont29_mn);
      u8g2.setCursor(0, 50);
      ac.read();   
      u8g2.print(float(ac.humidity)/10,1);
       u8g2.setFont(u8g2_font_pxplusibmvga8_m_all);
      u8g2.drawStr(70, 50,"%");

      //湿度水滴
      u8g2.drawXBMP( 92, 16, humid_width, humid_height, humid_bits);
    }


    uint8_t draw_state = 0;
    void draw() {
      u8g2.clearBuffer();  
      switch(draw_state ) {
        case 0: drawMidAutumn(); break;   
        case 1: drawTemp(); break;
        case 2: drawHumid(); break;
      }
       u8g2.sendBuffer();
    }

    void setup(void) {  
      Serial.begin(9600);
      u8g2.begin();
    }

    void loop(void) {
      //三画面循环
      delay(200);   
      u8g2.firstPage();
      do {
        draw();
      } while( u8g2.nextPage() );
       // 三画面切换
      draw_state++;  
      if ( draw_state > 3  )
        draw_state = 0;
      // 经验值根据爱好设定每屏滞留时间
      delay(2000);
    }[/kenrobot_code]

      效果图:
    3.JPG

    4.JPG

    5.JPG

    AM2321美科科技称Tem_Hum   库文件: https://git.microduino.cn/hardwa ... 07_m_Sensor_Tem_Hum 我还写了一版作为附件。








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