add UPNP / SSPD, see issue #23

platformio.ini

@@ -24,4 +24,5 @@ lib_deps =
     TTGO TWatch Library@>=1.2.0
     ESP Async WebServer@>=1.2.0
     AsyncTCP@>=1.1.1
-    ArduinoJson@>=6.15.2
+    ArduinoJson@>=6.15.2
+    ESP32SSPD@>=1.1.0

src/app/weather/weather_forecast.cpp

@@ -226,11 +226,7 @@ void weather_forecast_sync_Task( void * pvParameters ) {
                 localtime_r( &now, &info );
                 strftime( buf, sizeof(buf), "updated: %d.%b %H:%M", &info );
                 lv_label_set_text( weather_forecast_update_label, buf );
-            }
-            else {
-                char buf[64];
-                snprintf( buf, sizeof(buf), "Error: %d", retval );
-                lv_label_set_text( weather_forecast_update_label, buf );
+                lv_obj_invalidate( lv_scr_act() );
             }
         }
     }

src/config.h

@@ -31,6 +31,6 @@
     /*
     * firmeware version string
     */
-    #define __FIRMWARE__            "2020080701"
+    #define __FIRMWARE__            "2020080702"
 
 #endif // _CONFIG_H

src/hardware/wifictl.h

@@ -30,7 +30,7 @@
     #define ESP_WPS_MODE      WPS_TYPE_PBC
     #define ESP_MANUFACTURER  "ESPRESSIF"
     #define ESP_MODEL_NUMBER  "ESP32"
-    #define ESP_MODEL_NAME    "ESPRESSIF IOT"
+    #define ESP_MODEL_NAME    "LILYGO T-WATCH2020 V1"
     #define ESP_DEVICE_NAME   "ESP STATION"
 
     struct networklist {

src/webserver/webserver.cpp

@@ -27,6 +27,7 @@
 #include <AsyncTCP.h>
 #include <ESPAsyncWebServer.h>
 #include <SPIFFSEditor.h>
+#include <ESP32SSDP.h>
 
 #include "webserver.h"
 #include "config.h"
@@ -168,5 +169,52 @@ void asyncwebserver_setup(void){
     [](AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) { handleUpdate(request, filename, index, data, len, final); }
   );
 
+  asyncserver.on("/description.xml", HTTP_GET, [](AsyncWebServerRequest *request) {
+    byte mac[6];
+    WiFi.macAddress(mac);
+    char tmp[12 + 1];
+    snprintf(tmp, sizeof(tmp), "%02X%02X%02X%02X%02X%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+    String MacStrPart = String(tmp).substring(6);
+
+    String xmltext = String("<?xml version=\"1.0\"?>\n") +
+            "<root xmlns=\"urn:schemas-upnp-org:device-1-0\">\n"
+            "<specVersion>\n"
+            "\t<major>1</major>\n"
+            "\t<minor>0</minor>\n"
+            "</specVersion>\n"
+            "<URLBase>http://" + WiFi.localIP().toString() + "/</URLBase>\n" 
+            "<device>\n"
+            "\t<deviceType>upnp:rootdevice</deviceType>\n"
+
+            /*this is the icon name in Windows*/
+            /*"\t<friendlyName>" + WiFi.getHostname() + "</friendlyName>\n"*/ 
+            "\t<friendlyName>" + DEV_NAME + " " + MacStrPart + "</friendlyName>\n" /*because the hostename is 'Espressif' */
+
+            "\t<presentationURL>/</presentationURL>\n"
+            "\t<manufacturer>" + "Dirk Broßwick (sharandac)" + "</manufacturer>\n"
+            "\t<manufacturerURL>https://github.com/sharandac/My-TTGO-Watch</manufacturerURL>\n"
+            "\t<modelName>" +  DEV_INFO + "</modelName>\n"
+
+            "\t<modelNumber>" + WiFi.getHostname() + "</modelNumber>\n"
+            "\t<modelURL>" +
+            "/" + "</modelURL>\n"
+
+            "\t<serialNumber>Build: " + __FIRMWARE__ + "</serialNumber>\n"
+            //The last six bytes of the UUID are the hardware address of the first Ethernet adapter in the system the UUID was generated on.
+            "\t<UDN>uuid:38323636-4558-4DDA-9188-CDA0E6" + MacStrPart + "</UDN>\n"
+            "</device>\n"
+            "</root>\r\n"
+            "\r\n";
+
+    request->send(200, "text/xml", xmltext);
+  });
+
+  //Upnp / SSDP presentation - Multicast  - link to description.xml
+  SSDP.setSchemaURL("description.xml");
+  SSDP.setHTTPPort( UPNPPORT );
+  SSDP.setURL("/");
+  SSDP.setDeviceType("upnp:rootdevice");
+  SSDP.begin();
+
   asyncserver.begin();
 }

src/webserver/webserver.h

@@ -24,7 +24,11 @@
 
     #define _ASYNCWEBSERVER_H
 
-    #define WEBSERVERPORT 80
+    #define WEBSERVERPORT   80
+    #define UPNPPORT        80
+
+    #define DEV_NAME        "My-Watch" 
+    #define DEV_INFO        "Watch based on ESP32 from Espressif Systems"
 
     /*
      *  @brief setup builtin webserver, call after first wifi-connection. otherwise esp32 will crash

ttgo-t-watch2020_v1.version.json

@@ -1 +1 @@
-{"version":"2020080701","host":"http://www.neo-guerillaz.de","file":"ttgo-t-watch2020_v1.ino.bin"}
+{"version":"2020080702","host":"http://www.neo-guerillaz.de","file":"ttgo-t-watch2020_v1.ino.bin"}