#include "DHT.h"
#include <MD_MAX72xx.h>
DHT dht(2, 22);
MD_MAX72XX mx = MD_MAX72XX(MD_MAX72XX::PAROLA_HW, 10, 4);
bool x = true;
bool u = true;
void setup() {

mx.begin();  
mx.clear();  
dht.begin();
Serial.begin(9600);
pinMode(4, OUTPUT);
pinMode(5, INPUT);
digitalWrite(5, HIGH);
Tempe();
}

void loop() {

if(digitalRead(5) == LOW && x == true && u == true )
{
clear();
Vlhkst();
x = false;
}
if(digitalRead(5) == HIGH && x == false && u == true)
{
  x = true;
  u = false;
}

if(digitalRead(5) == LOW && x == true && u == false)
{
 clear();
 Tempe();
x = false;
}
if(digitalRead(5) == HIGH && x == false && u == false)
{
  x = true;
  u = true;
}

}





void clear(){
  for(int i = 0; i<32; i++){
  mx.setChar(i, ' ');
  }
}

void Vlhkst(){
float V = dht.readHumidity(); 
char VH[10] = {0};  
int V_int = (int)V;  
int V_fra = (int)((V - V_int) * 100); 
if (V_fra < 0) V_fra = -V_fra;
sprintf(VH, "%d.%1d", V_int, V_fra);
Serial.print("Vlhkost: ");
Serial.println(VH);
mx.setChar(23, VH[0]);
mx.setChar(16, VH[1]);
mx.setChar(9, VH[2]);
mx.setChar(5, VH[3]);
mx.setChar(30, 'V');
}

void Tempe()
{
  float T = dht.readTemperature();
  char TP[10] = {0};  
int T_int = (int)T; 
int T_fra = (int)((T - T_int) * 100);  
if (T_fra < 0) T_fra = -T_fra;
sprintf(TP, "%d.%1d", T_int, T_fra);
Serial.print("Teplota: ");
Serial.println(TP);
mx.setChar(23, TP[0]);
mx.setChar(16, TP[1]);
mx.setChar(9, TP[2]);
mx.setChar(5, TP[3]);
mx.setChar(30, 'T');

if (T == 10.0){
digitalWrite(4, HIGH);
}
else {
  digitalWrite(4, LOW);
}
}