#include <Adafruit_MPU6050.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>
#define DHTPIN 4
#define DHTTYPE DHT22


DHT dht= DHT(DHTPIN,DHTTYPE);
Adafruit_MPU6050 mpu;
Adafruit_SSD1306 display = Adafruit_SSD1306(128, 48, &Wire);

int led= 13;
int sensor=2;
int state=LOW;
int val=0;
int flag=0;
float hum;
float tempa;


void setup() {


  pinMode(led, OUTPUT);
  pinMode(sensor, INPUT);

  dht.begin();

  Serial.begin(115200);
  // while (!Serial);
  Serial.println("MPU6050 OLED demo");

  if (!mpu.begin()) {
    Serial.println("Sensor init failed");
    while (1)
      yield();
  }
  Serial.println("Found a MPU6050 sensor");

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for (;;)
      ; // Don't proceed, loop forever
  }
  display.display();
  delay(500); // Pause for 2 seconds
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setRotation(0);
}

void loop() {

hum= dht.readHumidity();
tempa=dht.readTemperature();

if(isnan(hum)||isnan(tempa))
Serial.println("Failed to read from sensor");


  val=digitalRead(sensor);

  if(val==HIGH)
  {
    digitalWrite(led,HIGH);
  
  if(state==LOW)
  {
    flag=1;
    state=HIGH;
  }
  }
  else{
    digitalWrite(led,LOW);
    if(state==HIGH)
    {
      flag=0;
      state=LOW;
    }
  }
  
  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  display.clearDisplay();
  display.setCursor(0, 0);

  Serial.print("Accelerometer ");
  Serial.print("X: ");
  Serial.print(a.acceleration.x, 2);
  Serial.print(" m/s^2, ");
  Serial.print("Y: ");
  Serial.print(a.acceleration.y, 2);
  Serial.print(" m/s^2, ");
  Serial.print("Z: ");
  Serial.print(a.acceleration.z, 2);
  Serial.println(" m/s^2");
  
  display.println("Accelerometer - m/s^2");
  display.print(a.acceleration.x, 2);
  display.print(", ");
  display.print(a.acceleration.y, 2);
  display.print(", ");
  display.print(a.acceleration.z, 2);
  display.println("");
  display.print("Humidity: ");
  display.print(hum,2);
  display.println("%");
  display.print("Temperature:");
  display.print(tempa,2);
  display.println(" C");

  if((a.acceleration.x<-2)||(a.acceleration.y<-2)||(a.acceleration.z<7)||(a.acceleration.x>2)||(a.acceleration.y>2)||(a.acceleration.z)>11)
  display.println("Vibration Detected!");
  else display.println("No vibration");

  if(flag==1)
  display.println("Motion Detected");
  else
  display.println("No Motion");
  display.display();
  delay(100);
}