esp82661.44寸tft屏幕显示刷新问题

wo116114

以下是代码

1. #include <Adafruit_GFX.h>    // Core graphics library
   
2. #include <Adafruit_ST7735.h>
   
3. #include <SPI.h>
   
4. #include <DHT.h>
   
5. #define DHTPIN     12
   
6. #define TFT_CS     D1
   
7. #define TFT_RST    D2
   
8. #define TFT_DC     D3
   
9. #define DHTTYPE DHT22
   
10. DHT dht(DHTPIN, DHTTYPE);
    
11. 
    
12. Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS,  TFT_DC, TFT_RST);
    
13. #define TFT_SCLK 13   // set these to be whatever pins you like!
    
14. #define TFT_MOSI 11
    
15. unsigned char quan[] = {0x00,0x00,0x00,0x44,0xA4,0xA8,0xA8,0xB0,0x54,0x1A,0x2A,0x2A,0x4A,0x44,0x00,0x00};
    
16. unsigned char zhou[] = {0x10,0x04,0x10,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x54,0xA4,0x52,0x94,0x52,0x94,0x90,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x20,0x84,0x20,0x84,0x40,0x04,0x80,0x04};
    
17. unsigned char wen[] = {0x00,0x00,0x23,0xF8,0x12,0x08,0x12,0x08,0x83,0xF8,0x42,0x08,0x42,0x08,0x13,0xF8,0x10,0x00,0x27,0xFC,0xE4,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x2F,0xFE,0x00,0x00};
    
18. unsigned char du[] = {0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x3F,0xFC,0x22,0x20,0x22,0x20,0x23,0xE0,0x20,0x00,0x2F,0xF0,0x24,0x10,0x42,0x20,0x41,0xC0,0x86,0x30,0x38,0x0E};
    
19. unsigned char shi[] = {0x00,0x00,0x27,0xF8,0x14,0x08,0x14,0x08,0x87,0xF8,0x44,0x08,0x44,0x08,0x17,0xF8,0x11,0x20,0x21,0x20,0xE9,0x24,0x25,0x28,0x23,0x30,0x21,0x20,0x2F,0xFE,0x00,0x00};
    
20. unsigned char wendu[] = {0x60,0x00,0x91,0xF4,0x96,0x0C,0x6C,0x04,0x08,0x04,0x18,0x00,0x18,0x00,0x18,0x00,0x18,0x00,0x18,0x00,0x18,0x00,0x08,0x00,0x0C,0x04,0x06,0x08,0x01,0xF0,0x00,0x00};
    
21. unsigned char re[] = {0x10,0x40,0x10,0x40,0x10,0x40,0xFD,0xF8,0x10,0x48,0x10,0x48,0x1C,0xC8,0x30,0x48,0xD0,0xAA,0x10,0xAA,0x51,0x06,0x22,0x02,0x00,0x00,0x48,0x88,0x44,0x44,0x84,0x44};
    
22. unsigned char zhi[] = {0x11,0x00,0x11,0x04,0x11,0x38,0x11,0xC0,0xFD,0x02,0x11,0x02,0x10,0xFE,0x14,0x00,0x19,0xFC,0x31,0x04,0xD1,0x04,0x11,0xFC,0x11,0x04,0x11,0x04,0x51,0xFC,0x21,0x04};
    
23. unsigned char shu[] = {0x08,0x20,0x49,0x20,0x2A,0x20,0x08,0x3E,0xFF,0x44,0x2A,0x44,0x49,0x44,0x88,0xA4,0x10,0x28,0xFE,0x28,0x22,0x10,0x42,0x10,0x64,0x28,0x18,0x28,0x34,0x44,0xC2,0x82};
    
24. void setup() {
    
25.   // put your setup code here, to run once:
    
26. tft.initR(INITR_144GREENTAB);
    
27. //tft.fillScreen(ST7735_BLACK);
    
28. Serial.println("init");
    
29. Serial.begin(9600);
    
30. Serial.println(F("DHTxx test!"));
    
31. dht.begin();
    
32. }
    
33. void printChinese(uint x,uint y,unsigned char *Hz_code)
    
34. {
    
35. int tbl_size=sizeof(Hz_code)/sizeof(char);
    
36. 
    
37. short int temp_code=0;
    
38. int i,j,k;
    
39. 
    
40. for(i=0;i<16;i++)
    
41. for(j=0;j<2;j++)
    
42. for(k=0;k<8;k++)
    
43. 
    
44. if(((Hz_code[i*2+j]>>(7-k))&0x1)!=NULL)
    
45. //}
    
46. tft.drawPixel(x+8*j+k,y+i, ST7735_RED);
    
47. }
    
48. 
    
49. void loop() {
    
50. delay(2000);
    
51. /*tft.setCursor(39,20);
    
52.   tft.setTextPadding();
    
53.   tft.setCursor(39,0);
    
54.   tft.setTextPadding();
    
55.   tft.setCursor(55,40);
    
56.   tft.setTextPadding();*/
    
57. //  tft.setTextWrap(true);
    
58.   tft.fillScreen(ST7735_BLACK);
    
59.   // Reading temperature or humidity takes about 250 milliseconds!
    
60.   // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
    
61.   float h = dht.readHumidity();
    
62.   // Read temperature as Celsius (the default)
    
63.   float t = dht.readTemperature();
    
64.   // Read temperature as Fahrenheit (isFahrenheit = true)
    
65.   float f = dht.readTemperature(true);
    
66. 
    
67.   // Check if any reads failed and exit early (to try again).
    
68.   if (isnan(h) || isnan(t) || isnan(f)) {
    
69.     Serial.println(F("Failed to read from DHT sensor!"));
    
70.     return;
    
71.   }
    
72.   float hif = dht.computeHeatIndex(f, h);
    
73.   // Compute heat index in Celsius (isFahreheit = false)
    
74.   float hic = dht.computeHeatIndex(t, h, false);
    
75. tft.setTextColor(ST7735_GREEN);
    
76. tft.setTextSize(2);
    
77.   Serial.print(F("Humidity: "));
    
78.   Serial.print(h);
    
79.   Serial.print(F("%  Temperature: "));
    
80.   Serial.print(t);
    
81.   Serial.print(F("°C "));
    
82.   Serial.print(f);
    
83.   Serial.print(F("°F  Heat index: "));
    
84.   Serial.print(hic);
    
85.   Serial.print(F("°C "));
    
86.   Serial.print(hif);
    
87.   Serial.println(F("°F"));
    
88.   tft.setCursor(39,20);
    
89.   tft.print(h);
    
90.   tft.setCursor(39,0);
    
91.   tft.print(t);
    
92.   tft.setCursor(101,20);
    
93.   tft.print("%");
    
94.   tft.setCursor(55,40);
    
95.   tft.print(hic);
    
96. // Serial.println(tft.getRotation(), DEC);
    
97. 
    
98. 
    
99. //tft.WindowMax(0,30,16,46);
    
100. tft.setCursor(0, 0);
     
101. 
     
102. printChinese(4,0,wen);
     
103. printChinese(20,0,du);
     
104. printChinese(4,20,shi);
     
105. printChinese(20,20,du);
     
106. printChinese(100,0,wendu);
     
107. printChinese(4,40,re);
     
108. printChinese(20,40,zhi);
     
109. printChinese(36,40,shu);
     
110. printChinese(114,40,wendu);
     
111. }

复制代码

目前无法解决屏幕数字重影只能用黑色背景覆盖求解决
另外dht22温湿度传感器无法显示负温度会溢出
大神们是怎么写的