//Panos Papazoglou
//Microdev.gr 2023
#include <DHT.h>
#include <DHT_U.h>
#include <Adafruit_GFX.h>    
#include <Adafruit_ST7735.h> 
#include <SPI.h>

#define TFT_CS     10
#define TFT_RST    9  
#define TFT_DC     8

#define TFT_CS2     7
#define TFT_RST2    6  
#define TFT_DC2     5

#define DHTPIN 4
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);

//Left TFT tft[0]
//right TFT tft[1]
Adafruit_ST7735 tft[]={Adafruit_ST7735(TFT_CS,  TFT_DC, TFT_RST), Adafruit_ST7735(TFT_CS2,  TFT_DC2, TFT_RST2)};

String labels[2][7]={{"60", "50", "40","30", "20", "10","0"},
{"100", "83", "67","50", "33", "16","0"}};


int rad=55; int rr=5;

void setup(void) {
  //initialize TFTs
  for(int i=0;i<=1;i++)
  {
  tft[i].initR(INITR_144GREENTAB);   
  tft[i].fillScreen(ST7735_BLACK);
  }

//Initialize DHT11
dht.begin();

draw_circle(0,63,120,rad-3,6.28,3.14,-0.02, ST7735_WHITE);
draw_circle(1,63,120,rad-3,6.28,3.14,-0.02, ST7735_WHITE);
draw_dots(0,63,120,rad-3,6.28,3.14,-0.5);

draw_dots(1,63,120,rad-3,6.28,3.14,-0.5);
draw_scales(13);
draw_labels(0,0,63,120,rad+9,6.28,3.14,-0.5);
draw_labels(1,1,63,120,rad+9,6.28,3.14,-0.5);

}

void draw_scales(int w)
{
for(int v=1;v<=w;v++)
{
draw_circle(0,63,120,rad+v,6.28,5.495,-0.005, ST7735_RED);
draw_circle(0,63,120,rad+v,5.495,4.71,-0.005, ST7735_YELLOW);
draw_circle(0,63,120,rad+v,4.71,3.925,-0.005, ST7735_GREEN);
draw_circle(0,63,120,rad+v,3.925,3.14,-0.005, ST7735_BLUE);

draw_circle(1,63,120,rad+v,6.28,4.71,-0.005, ST7735_YELLOW);

draw_circle(1,63,120,rad+v,4.71,3.14,-0.005, ST7735_GREEN);
}

}


void loop()
{

float h=dht.readHumidity();
float t=dht.readTemperature();


//left TFT
float topx=(t/10)*0.5+3.28;
int ntft=0;
tft[ntft].drawLine(63,120,63+(rad-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLUE);
tft[ntft].drawLine(63,120,63+(rad+1-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLUE);
tft[ntft].drawLine(63,120,63+(rad-1-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLUE);
mytext(ntft,"MICRODEV.GR",1,32,0,ST7735_GREEN);
mytext(ntft,"TEMP",2,40,17,ST7735_YELLOW);
mytext(ntft,String(t),2,30,35,ST7735_WHITE);
tft[ntft].drawCircle(92,35,2,ST7735_WHITE);
mytext(ntft,"C",2,97,35,ST7735_WHITE);

//right TFT
topx=(h/16.6)*0.5+3.28;
ntft=1;
tft[ntft].drawLine(63,120,63+(rad-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLUE);
tft[ntft].drawLine(63,120,63+(rad+1-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLUE);
tft[ntft].drawLine(63,120,63+(rad-1-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLUE);
mytext(ntft,"MICRODEV.GR",1,32,0,ST7735_GREEN);
mytext(ntft,"HUMI",2,40,17,ST7735_YELLOW);
mytext(ntft,String(h),2,30,35,ST7735_WHITE);
mytext(ntft,"%",2,95,35,ST7735_WHITE);


delay(5000);
for(int i=0;i<=1;i++)
{
tft[i].drawLine(63,120,63+(rad-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLACK);
tft[i].drawLine(63,120,63+(rad+1-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLACK);
tft[i].drawLine(63,120,63+(rad-1-rr)*cos(topx), 120+(rad-rr)*sin(topx),ST7735_BLACK);
tft[i].fillRect(30,10,100,42,ST7735_BLACK);
}


}


void draw_circle(int ntft, int x, int y, int rad, float from, float to, float step, int color)
{
for(float i=from;i>=to;i+=step)
  {
  float xx=x+rad*cos(i); float yy=y+rad*sin(i);
  tft[ntft].drawPixel(xx, yy,color);
  }
}


void draw_s1(int ntft, int x, int y, int rad, float from, float to, float step)
{
for(float i=from;i>=to;i+=step)
  {
  float xx=x+rad*cos(i); float yy=y+rad*sin(i);
  tft[ntft].drawPixel(xx, yy,ST7735_WHITE);
  }
}

void draw_dots(int ntft, int x, int y, int rad, float from, float to, float step)
{
for(float i=from;i>=to;i+=step)
  {
  float xx=x+rad*cos(i); float yy=y+rad*sin(i);
  tft[ntft].fillCircle(xx,yy,2,ST7735_WHITE);
  }
}

void draw_labels(int ntft, int labn, int x, int y, int rad, float from, float to, float step)
{
  int lab=0;
for(float i=from;i>=to;i+=step)
  {
  float xx=x+rad*cos(i); float yy=y+rad*sin(i);
  mytext(ntft,labels[labn][lab],1,xx-5,yy,ST7735_BLACK);
  lab++;
  }
}


void mytext(int ntft, String text, int textsize, int x, int y, int mycolor)
{
tft[ntft].setTextSize(textsize);
tft[ntft].setTextColor(mycolor);
tft[ntft].setCursor(x,y);
tft[ntft].print(text);
}