From aeef952908fe50eaa3165216739f1ee67126403c Mon Sep 17 00:00:00 2001
From: Nis Wechselberg <enbewe@enbewe.de>
Date: Fri, 24 Mar 2017 12:40:46 +0100
Subject: [PATCH] Added small template for service autodiscovery

---
 ESP8266-mDNS-Subwoofer/.gitignore             |   1 +
 .../ESP8266-mDNS-Subwoofer.h.template         |   3 +
 .../ESP8266-mDNS-Subwoofer.ino                | 145 ++++++++++++++++++
 3 files changed, 149 insertions(+)
 create mode 100644 ESP8266-mDNS-Subwoofer/.gitignore
 create mode 100644 ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.h.template
 create mode 100644 ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.ino

diff --git a/ESP8266-mDNS-Subwoofer/.gitignore b/ESP8266-mDNS-Subwoofer/.gitignore
new file mode 100644
index 0000000..14064a9
--- /dev/null
+++ b/ESP8266-mDNS-Subwoofer/.gitignore
@@ -0,0 +1 @@
+ESP8266-mDNS-Subwoofer.h
diff --git a/ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.h.template b/ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.h.template
new file mode 100644
index 0000000..f279001
--- /dev/null
+++ b/ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.h.template
@@ -0,0 +1,3 @@
+// WiFi configuration
+const char* ssid = "http://kiel.freifunk.net/";
+const char* password = "";
diff --git a/ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.ino b/ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.ino
new file mode 100644
index 0000000..1b48503
--- /dev/null
+++ b/ESP8266-mDNS-Subwoofer/ESP8266-mDNS-Subwoofer.ino
@@ -0,0 +1,145 @@
+/********************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Nis Wechselberg
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ ********************************************************************************/
+#include "ESP8266-mDNS-Subwoofer.h"
+#include <ESP8266WiFi.h>
+#include <ESP8266mDNS.h>
+
+#define SERIAL
+
+const char* hostString    = "ESP_HT_SUB";
+const unsigned int port   = 4721;
+
+// Server object 
+WiFiServer server(port);
+
+void setup() {
+  // Configure output pin
+  pinMode(12, OUTPUT);
+  digitalWrite(12, LOW);  
+  
+  // Setup serial console for debugging
+#ifdef SERIAL
+  Serial.begin(115200);
+  delay(100);
+  Serial.println("\r\nsetup()");
+
+  Serial.print("Hostname: ");
+  Serial.println(hostString);
+#endif
+
+  // Set the Hostname for the WiFi connection
+  WiFi.hostname(hostString);
+
+  // Connect to WiFi, wait for established connection
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(250);
+#ifdef SERIAL
+    Serial.print(".");
+#endif
+  }
+
+  // Print established connection data to console
+#ifdef SERIAL
+  Serial.println("");
+  Serial.print("Connected to ");
+  Serial.println(ssid);
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+#endif
+
+  // Initialize server
+  server.begin();
+
+  // Initialize Multicast DNS responder
+  if (!MDNS.begin(hostString)) {
+#ifdef SERIAL    
+    Serial.println("Error setting up MDNS responder!");
+#endif
+  }
+#ifdef SERIAL
+  Serial.println("mDNS responder started");
+#endif
+
+  // Announce hometheater service
+  MDNS.addService("hometheater", "tcp", port);
+  MDNS.addServiceTxt("hometheater", "tcp", "Component", "Subwoofer");
+
+#ifdef SERIAL  
+  Serial.println("loop() next");
+#endif
+}
+
+void loop() {
+  // Update the mDNS responder
+  MDNS.update();
+
+  // Check if a client connected
+  WiFiClient client = server.available();
+  if (client) {
+#ifdef SERIAL
+    Serial.println("Client connected");
+#endif
+    // Wait until the client sends some data or timeout hits
+    unsigned char timeout = 5;
+    while(!client.available() && timeout > 0){
+      delay(1000);
+      timeout = timeout - 1;
+    }
+
+    if (timeout <= 0) {
+      // Timeout was triggered, cleanup and leave
+    } else {
+      // Some data was received
+      String req = client.readStringUntil('\r');
+      client.flush();
+
+#ifdef SERIAL
+      Serial.println(req);
+#endif
+      
+      String response;
+      // Check for valid command
+      if (req.equals("Dominik")) {
+        // Command valid, trigger switch
+        digitalWrite(12, HIGH);
+        delay(100);
+        digitalWrite(12, LOW);
+        response = "OK\n";
+      } else {
+        // Invalid data, discard
+        response = "ERR\n";
+      }
+      
+      client.print(response);
+      delay(10);
+
+    }
+    client.flush();
+    client.stop();
+  }
+  // Throttle looping a bit
+  delay(500);
+}