#include <dht.h>
#include <TinyWireM.h>
#include <TinyWireM.h>
#include <Tiny4kOLED.h>

#define DHT22_PIN PB1
#define ledBLU_PIN PB3
#define ledGREEN_PIN PB4
#define ledRED_PIN PB5

const unsigned char  img_thermometer[] PROGMEM = {
  0x00, 0xfe, 0x03, 0xfe, 0x50,
  0x00, 0xff, 0x00, 0xff, 0x55,
  0x60, 0x9f, 0x80, 0x9f, 0x65,
};
dht DHT;
float getTemperature() {
  return DHT.temperature;
}
float getHumidity() {
  return DHT.humidity;
}
void setup() {
  pinMode(DHT22_PIN, INPUT);
  pinMode(ledBLU_PIN, OUTPUT);
  pinMode(ledGREEN_PIN, OUTPUT);
  pinMode(ledRED_PIN, OUTPUT);
  oled.begin(128, 64, sizeof(tiny4koled_init_128x64br), tiny4koled_init_128x64br);
  //oled.begin(128, 32, sizeof(tiny4koled_init_128x32br), tiny4koled_init_128x32br);
 
  // Two fonts are supplied with this library, FONT8X16 and FONT6X8
  oled.setFont(FONT8X16);
  // To clear all the memory
  oled.clear();
  oled.on();
  splash();
  delay(3000);
  oled.clear();
  
}
 
void loop() {
  static long startTime = 0;
  long currentTime;
 
  DHT.read22(DHT22_PIN);
 
  // Get current time
  currentTime = millis();
 
  // Checks 1 second passed
  if ((currentTime - startTime) > 1000) {
    startTime = currentTime;
    // Update temperature
    float temperature = getTemperature();
    // Set cursor
    oled.setCursor(15, 0);
    oled.print("Temp: ");
    // Print to display
    oled.print(temperature, 1);
    oled.print(" °C  ");
    // Update humidity
    float humidity = getHumidity();
    // Set cursor
    oled.setCursor(15, 2);
    oled.print("Humi: ");
    // Print to display
    oled.print(humidity, 1);
    oled.print(" %  ");
 
    oled.bitmap(2, 1, 7, 4, img_thermometer);
    //oled.bitmap(120, 5, 125, 8, img_thermometer);

    // Accensione Led
    if (temperature < 17) {
        digitalWrite (ledBLU_PIN, HIGH);
        digitalWrite (ledGREEN_PIN, LOW);
        digitalWrite (ledRED_PIN, LOW);
    } else if (temperature > 22) {
        digitalWrite (ledBLU_PIN, LOW);
        digitalWrite (ledGREEN_PIN, LOW);
        digitalWrite (ledRED_PIN, HIGH);
    } else {
        digitalWrite (ledBLU_PIN, LOW);
        digitalWrite (ledGREEN_PIN, HIGH);
        digitalWrite (ledRED_PIN, LOW);
    }
  }
}

void splash (void) {
  oled.setCursor(30, 0);
  oled.print("TempHum");
  oled.setCursor(0, 2);
  oled.print("by herma   v1.00");
}