//==========================================
//MAX72xx Dot Matrix Display & BME280 Sensor
//==========================================
#include <Wire.h>
#include <MD_MAX72xx.h>
#include <MD_Parola.h>
#include <SPI.h>
#include <Adafruit_BME280.h>
//------------------------------------------------------------
MD_Parola disp = MD_Parola(MD_MAX72XX::FC16_HW, 10, 4);
Adafruit_BME280 bme;
//------------------------------------------------------------
int temp, hum, pres; String tempString, humString, presString;
//==================================================================================
void setup()
{
  pinMode(2,INPUT); pinMode(3,INPUT); pinMode(4,INPUT);
  disp.begin(); bme.begin(0x76, &Wire);

  disp.displayText("BME280 Sensor", PA_LEFT, 40, 40, PA_SCROLL_LEFT,PA_SCROLL_LEFT);
}
//==================================================================================
void loop()
{
//  while(!disp.displayAnimate());
//  disp.displayText("T * H * P", PA_LEFT, 20, 20, PA_SCROLL_LEFT,PA_SCROLL_LEFT);
  while(!disp.displayAnimate());
  
  if(digitalRead(2) == HIGH) dispTemp();
  if(digitalRead(3) == HIGH) dispHum();
  if(digitalRead(4) == HIGH) dispPres();
  
  disp.displayClear();
}
//==================================================================================
void dispTemp()
{
  disp.displayClear();
  disp.displayText("Temperature", PA_LEFT, 30, 30, PA_SCROLL_LEFT,PA_SCROLL_LEFT);
  while(!disp.displayAnimate());
  delay(500);
  for(int i=1; i<=7; i++)
  {
    temp  = bme.readTemperature();
    tempString  = "  " + String(temp) + " C";
    disp.print(tempString);
    delay(1000);
  }
}
//==================================================================================
void dispHum()
{
  disp.displayClear();
  disp.displayText("Humidity", PA_LEFT, 30, 30, PA_SCROLL_LEFT,PA_SCROLL_LEFT);
  while(!disp.displayAnimate());
  delay(500);
  for(int i=1; i<=7; i++)
  {
    hum  = bme.readHumidity();
    humString  = "  " + String(hum) + " %";
    disp.print(humString);
    delay(1000);
  }
}
//==================================================================================
void dispPres()
{
  disp.displayClear();
  disp.displayText("Pressure", PA_LEFT, 30, 30, PA_SCROLL_LEFT,PA_SCROLL_LEFT);
  while(!disp.displayAnimate());
  delay(500);
  for(int i=1; i<=7; i++)
  {
    pres  = bme.seaLevelForAltitude(705, bme.readPressure())/100;
    presString  = "" + String(pres) + " H";
    disp.print(presString);
    delay(1000);
  }
}