///////////////////////////////////////

// temperature and humidity sensor

///////////////////////////////////////

#include <DHT.h>

#define Type DHT11

int DHTpin = 6;

int humidity;

float tempC;

DHT HT(DHTpin,Type);

int setTime = 2000;

int delayRead = 2000;

///////////////////////////////////////

// display

///////////////////////////////////////

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels

#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)

// The pins for I2C are defined by the Wire-library.

// On an arduino UNO: A4(SDA), A5(SCL)

#define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)***

#define OLED_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

///////////////////////////////////////

// code

///////////////////////////////////////

void setup() {

Serial.begin(9600);

HT.begin();

delay(setTime);

// display setup

// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally

if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDRESS)) {

Serial.println(F("SSD1306 allocation failed"));

for(;;); // Don't proceed, loop forever

}

display.display();

delay(2000); // Pause for 2 seconds

// Clear the buffer

display.clearDisplay();

// display.drawPixel(10, 10, SSD1306_WHITE);

// display.display();

delay(2000);

}

void loop() {

humidity = HT.readHumidity();

tempC = HT.readTemperature();

display.clearDisplay();

display.setTextSize(2); // Draw 2X-scale text

display.setTextColor(SSD1306_WHITE);

display.setCursor(0, 0);

display.print(("Humidity: "));

display.print((humidity));

display.println(("%"));

display.print(("Temp: "));

display.print((tempC));

display.println((" C"));

display.display(); // Show initial text

delay(100);

Serial.print("Humidity: ");

Serial.println(humidity);

Serial.print("Temperature (C): ");

Serial.println(tempC);

delay(delayRead);

}