Kevinwlee/http-firebase-garage-door.ino

## http-firebase-garage-door.ino
#include "DHT.h"
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <FirebaseArduino.h>

// Firebase info
const char FIREBASE_HOST[] = "YOUR_FIREBASE_HOST_HERE.firebaseio.com";
const char FIREBASE_AUTH[] = "YOUR_FIRBASE_ADMIN_KEY";

//wifi info
const char WiFiSSID[] = "YOUR_WIFI_NETWORK";
const char WiFiPSK[] = "YOUR_WIFI_PASSWORD";

//Set up DHT info
const int DHTPIN = 2;    // digital pin DHT22 is connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

//Other Pins
const int LED_PIN = 5;  // Thing's onboard LED
const int DIGITAL_PIN = 12; // Digital pin that triggers garage
const int CIRCUIT_PIN = 13; // magnet connected to digital pin 7

// Initialize DHT sensor.
DHT dht(DHTPIN, DHTTYPE);

// Initialize server
WiFiServer server(80);

// Rate Limiting Info for posting to Firebase
const unsigned long postRate = 60000;
unsigned long lastPost = 0;

// Default door state
int door = 0;

void setup() {
  initHardware();
  connectWiFi();
  setupMDNS();
  server.begin();
  dht.begin();
  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
}

void loop() {
  // Check if a client has connected
  WiFiClient client = server.available();
  if (client) {
    processRequest(client);
  } else {
    //check sensors
    checkSensors();
  }
}

void processRequest(WiFiClient client) {

  // Read the first line of the request
  String req = client.readStringUntil('\r');
  Serial.println(req);
  client.flush();

  // Match the request
  int val = -1;
  if (req.indexOf("/door/1") != -1)
    val = 1; //on


  // Turn the pin on for 500ms (triggers the garage)
  if (val >= 0) {
    digitalWrite(DIGITAL_PIN, 1);
    delay(500);
    digitalWrite(DIGITAL_PIN, 0);
  }

  client.flush();

  // Prepare the response. Start with the common header:
  String s = "HTTP/1.1 200 OK\r\n";
  s += "Content-Type: text/html\r\n\r\n";
  s += "<!DOCTYPE HTML>\r\n<html>\r\n";

  // If we're setting the LED, print out a message saying we did
  if (val >= 0) {
    s += "Garage is now moving";
  } else {
    s += "Invalid Request.<br> Try /garage/1.";
  }

  s += "</html>\n";

  // Send the response to the client
  client.print(s);
  delay(1);
  Serial.println("Client disonnected");
}

void checkDoor() {
  int doorRead = digitalRead(CIRCUIT_PIN);     // read the input pin

  if (door == doorRead) {
    //Door is unchanged.
    return;
  }

  door = doorRead;

  String state;
  if (door == 0) {
    state = "closed";
  } else {
    state = "open";
  }

  digitalWrite(LED_PIN, LOW);
  Serial.println("Posting to Firebase");
  Serial.println(state);
  Firebase.setString("bots/HB006/door", state);
  if (Firebase.failed()) {
    Serial.print("setting humidity failed:");
    Serial.println(Firebase.error());
    return;
  }
  digitalWrite(LED_PIN, HIGH);
}

void checkHumidity() {

  if ((lastPost + postRate <= millis()) || lastPost == 0) {
    // Reading temperature or humidity takes about 250 milliseconds!
    // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
    float h = dht.readHumidity();
    // Read temperature as Celsius (the default)
    float c = dht.readTemperature();
    // Read temperature as Fahrenheit (isFahrenheit = true)
    float f = dht.readTemperature(true);

    // Check if any reads failed and exit early (to try again).
    if (isnan(h) || isnan(c) || isnan(f)) {
      Serial.println("Failed to read from DHT sensor!");
      return;
    }
    Serial.println(h);
    Serial.println(c);
    Serial.println(f);

    Serial.println("Posting to Firebase");
    digitalWrite(LED_PIN, LOW);

    Firebase.setFloat("bots/HB006/humidity", h);
    if (Firebase.failed()) {
      Serial.print("setting humidity failed:");
      Serial.println(Firebase.error());
      return;
    }
    delay(200);

    Firebase.setFloat("bots/HB006/tempC", c);
    if (Firebase.failed()) {
      Serial.print("setting tempC failed:");
      Serial.println(Firebase.error());
      return;
    }
    delay(200);

    Firebase.setFloat("bots/HB006/tempF", f);
    if (Firebase.failed()) {
      Serial.print("setting tempF failed:");
      Serial.println(Firebase.error());
      return;
    }

    lastPost = millis();
    digitalWrite(LED_PIN, HIGH);
  }
}

void checkSensors() {
  checkDoor();
  checkHumidity();
}

void connectWiFi() {
  byte ledStatus = LOW;

  // Set WiFi mode to station (as opposed to AP or AP_STA)
  WiFi.mode(WIFI_STA);

  // connect to wifi.
  WiFi.begin(WiFiSSID, WiFiPSK);
  Serial.print("connecting");

  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    digitalWrite(LED_PIN, ledStatus); // Write LED high/low
    ledStatus = (ledStatus == HIGH) ? LOW : HIGH;
    delay(100);
  }

  Serial.println();
  Serial.print("connected: ");
  Serial.println(WiFi.localIP());
}

void setupMDNS() {
  // Call MDNS.begin(<domain>) to set up mDNS to point to
  // "<domain>.local"
  if (!MDNS.begin("garage1")) {
    Serial.println("Error setting up MDNS responder!");
    while(1) {
      delay(1000);
    }
  }

  Serial.println("mDNS responder started");
}

void initHardware() {
  Serial.begin(9600);
  pinMode(DIGITAL_PIN, OUTPUT);
  pinMode(DIGITAL_PIN, HIGH);
  pinMode(LED_PIN, OUTPUT);
  pinMode(CIRCUIT_PIN, INPUT_PULLUP);
}
	#include "DHT.h"
	#include <ESP8266WiFi.h>
	#include <ESP8266mDNS.h>
	#include <FirebaseArduino.h>

	// Firebase info
	const char FIREBASE_HOST[] = "YOUR_FIREBASE_HOST_HERE.firebaseio.com";
	const char FIREBASE_AUTH[] = "YOUR_FIRBASE_ADMIN_KEY";

	//wifi info
	const char WiFiSSID[] = "YOUR_WIFI_NETWORK";
	const char WiFiPSK[] = "YOUR_WIFI_PASSWORD";

	//Set up DHT info
	const int DHTPIN = 2; // digital pin DHT22 is connected to
	#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321

	//Other Pins
	const int LED_PIN = 5; // Thing's onboard LED
	const int DIGITAL_PIN = 12; // Digital pin that triggers garage
	const int CIRCUIT_PIN = 13; // magnet connected to digital pin 7

	// Initialize DHT sensor.
	DHT dht(DHTPIN, DHTTYPE);

	// Initialize server
	WiFiServer server(80);

	// Rate Limiting Info for posting to Firebase
	const unsigned long postRate = 60000;
	unsigned long lastPost = 0;

	// Default door state
	int door = 0;

	void setup() {
	initHardware();
	connectWiFi();
	setupMDNS();
	server.begin();
	dht.begin();
	Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
	}

	void loop() {
	// Check if a client has connected
	WiFiClient client = server.available();
	if (client) {
	processRequest(client);
	} else {
	//check sensors
	checkSensors();
	}
	}

	void processRequest(WiFiClient client) {

	// Read the first line of the request
	String req = client.readStringUntil('\r');
	Serial.println(req);
	client.flush();

	// Match the request
	int val = -1;
	if (req.indexOf("/door/1") != -1)
	val = 1; //on


	// Turn the pin on for 500ms (triggers the garage)
	if (val >= 0) {
	digitalWrite(DIGITAL_PIN, 1);
	delay(500);
	digitalWrite(DIGITAL_PIN, 0);
	}

	client.flush();

	// Prepare the response. Start with the common header:
	String s = "HTTP/1.1 200 OK\r\n";
	s += "Content-Type: text/html\r\n\r\n";
	s += "<!DOCTYPE HTML>\r\n<html>\r\n";

	// If we're setting the LED, print out a message saying we did
	if (val >= 0) {
	s += "Garage is now moving";
	} else {
	s += "Invalid Request.<br> Try /garage/1.";
	}

	s += "</html>\n";

	// Send the response to the client
	client.print(s);
	delay(1);
	Serial.println("Client disonnected");
	}

	void checkDoor() {
	int doorRead = digitalRead(CIRCUIT_PIN); // read the input pin

	if (door == doorRead) {
	//Door is unchanged.
	return;
	}

	door = doorRead;

	String state;
	if (door == 0) {
	state = "closed";
	} else {
	state = "open";
	}

	digitalWrite(LED_PIN, LOW);
	Serial.println("Posting to Firebase");
	Serial.println(state);
	Firebase.setString("bots/HB006/door", state);
	if (Firebase.failed()) {
	Serial.print("setting humidity failed:");
	Serial.println(Firebase.error());
	return;
	}
	digitalWrite(LED_PIN, HIGH);
	}

	void checkHumidity() {

	if ((lastPost + postRate <= millis()) \|\| lastPost == 0) {
	// Reading temperature or humidity takes about 250 milliseconds!
	// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
	float h = dht.readHumidity();
	// Read temperature as Celsius (the default)
	float c = dht.readTemperature();
	// Read temperature as Fahrenheit (isFahrenheit = true)
	float f = dht.readTemperature(true);

	// Check if any reads failed and exit early (to try again).
	if (isnan(h) \|\| isnan(c) \|\| isnan(f)) {
	Serial.println("Failed to read from DHT sensor!");
	return;
	}
	Serial.println(h);
	Serial.println(c);
	Serial.println(f);

	Serial.println("Posting to Firebase");
	digitalWrite(LED_PIN, LOW);

	Firebase.setFloat("bots/HB006/humidity", h);
	if (Firebase.failed()) {
	Serial.print("setting humidity failed:");
	Serial.println(Firebase.error());
	return;
	}
	delay(200);

	Firebase.setFloat("bots/HB006/tempC", c);
	if (Firebase.failed()) {
	Serial.print("setting tempC failed:");
	Serial.println(Firebase.error());
	return;
	}
	delay(200);

	Firebase.setFloat("bots/HB006/tempF", f);
	if (Firebase.failed()) {
	Serial.print("setting tempF failed:");
	Serial.println(Firebase.error());
	return;
	}

	lastPost = millis();
	digitalWrite(LED_PIN, HIGH);
	}
	}

	void checkSensors() {
	checkDoor();
	checkHumidity();
	}

	void connectWiFi() {
	byte ledStatus = LOW;

	// Set WiFi mode to station (as opposed to AP or AP_STA)
	WiFi.mode(WIFI_STA);

	// connect to wifi.
	WiFi.begin(WiFiSSID, WiFiPSK);
	Serial.print("connecting");

	while (WiFi.status() != WL_CONNECTED) {
	Serial.print(".");
	digitalWrite(LED_PIN, ledStatus); // Write LED high/low
	ledStatus = (ledStatus == HIGH) ? LOW : HIGH;
	delay(100);
	}

	Serial.println();
	Serial.print("connected: ");
	Serial.println(WiFi.localIP());
	}

	void setupMDNS() {
	// Call MDNS.begin(<domain>) to set up mDNS to point to
	// "<domain>.local"
	if (!MDNS.begin("garage1")) {
	Serial.println("Error setting up MDNS responder!");
	while(1) {
	delay(1000);
	}
	}

	Serial.println("mDNS responder started");
	}

	void initHardware() {
	Serial.begin(9600);
	pinMode(DIGITAL_PIN, OUTPUT);
	pinMode(DIGITAL_PIN, HIGH);
	pinMode(LED_PIN, OUTPUT);
	pinMode(CIRCUIT_PIN, INPUT_PULLUP);
	}