esp82661.44寸tft屏幕显示刷新问题
本帖最后由 wo116114 于 2021-10-12 16:23 编辑以下是代码<font _mstmutation="1">#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_ST7735.h>
#include <SPI.h>
#include <DHT.h>
#define DHTPIN 12
#define TFT_CS D1
#define TFT_RST D2
#define TFT_DC D3
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS,TFT_DC, TFT_RST);
#define TFT_SCLK 13 // set these to be whatever pins you like!
#define TFT_MOSI 11
unsigned char quan[] = {0x00,0x00,0x00,0x44,0xA4,0xA8,0xA8,0xB0,0x54,0x1A,0x2A,0x2A,0x4A,0x44,0x00,0x00};
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};
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};
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};
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};
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};
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};
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};
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};
void setup() {
// put your setup code here, to run once:
tft.initR(INITR_144GREENTAB);
//tft.fillScreen(ST7735_BLACK);
Serial.println("init");
Serial.begin(9600);
Serial.println(F("DHTxx test!"));
dht.begin();
}
void printChinese(uint x,uint y,unsigned char *Hz_code)
{
int tbl_size=sizeof(Hz_code)/sizeof(char);
short int temp_code=0;
int i,j,k;
for(i=0;i<16;i++)
for(j=0;j<2;j++)
for(k=0;k<8;k++)
if(((Hz_code>>(7-k))&0x1)!=NULL)
//}
tft.drawPixel(x+8*j+k,y+i, ST7735_RED);
}
void loop() {
delay(2000);
/*tft.setCursor(39,20);
tft.setTextPadding();
tft.setCursor(39,0);
tft.setTextPadding();
tft.setCursor(55,40);
tft.setTextPadding();*/
//tft.setTextWrap(true);
tft.fillScreen(ST7735_BLACK);
// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
float h = dht.readHumidity();
// Read temperature as Celsius (the default)
float t = dht.readTemperature();
// Read temperature as Fahrenheit (isFahrenheit = true)
float f = dht.readTemperature(true);
// Check if any reads failed and exit early (to try again).
if (isnan(h) || isnan(t) || isnan(f)) {
Serial.println(F("Failed to read from DHT sensor!"));
return;
}
float hif = dht.computeHeatIndex(f, h);
// Compute heat index in Celsius (isFahreheit = false)
float hic = dht.computeHeatIndex(t, h, false);
tft.setTextColor(ST7735_GREEN);
tft.setTextSize(2);
Serial.print(F("Humidity: "));
Serial.print(h);
Serial.print(F("%Temperature: "));
Serial.print(t);
Serial.print(F("°C "));
Serial.print(f);
Serial.print(F("°FHeat index: "));
Serial.print(hic);
Serial.print(F("°C "));
Serial.print(hif);
Serial.println(F("°F"));
tft.setCursor(39,20);
tft.print(h);
tft.setCursor(39,0);
tft.print(t);
tft.setCursor(101,20);
tft.print("%");
tft.setCursor(55,40);
tft.print(hic);
// Serial.println(tft.getRotation(), DEC);
//tft.WindowMax(0,30,16,46);
tft.setCursor(0, 0);
printChinese(4,0,wen);
printChinese(20,0,du);
printChinese(4,20,shi);
printChinese(20,20,du);
printChinese(100,0,wendu);
printChinese(4,40,re);
printChinese(20,40,zhi);
printChinese(36,40,shu);
printChinese(114,40,wendu);</font>
}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
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