reboot on error, fwupgrade first

src/main.cpp

@@ -226,6 +226,8 @@ void ICACHE_FLASH_ATTR getValuesJSON(char* buffer, const size_t buf_len, int for
 }
 
 void ICACHE_FLASH_ATTR sendValues() {
+  int errors = 0;
+
   sd.temperature = dht.readTemperature();
   sd.humidity = dht.readHumidity();
 
@@ -334,6 +336,14 @@ void ICACHE_FLASH_ATTR sendValues() {
 
   sd.rssi = WiFi.RSSI();
 
+  loop_count++;
+  if (loop_count == 1) {
+    XD0OTA ota;
+    ota.update();
+  } else if (loop_count > 720) { // do an update every 12h
+    loop_count = 0;
+  }
+
   int httpCode = 0;
   for (int tries=0; tries<3 && httpCode != HTTP_CODE_CREATED; tries++) {
 
@@ -359,6 +369,7 @@ void ICACHE_FLASH_ATTR sendValues() {
     httpclient.end();
 
   }
+  if (httpCode != HTTP_CODE_CREATED) errors++;
 
   net.setInsecure();
   mqttclient.begin(mqttserver, 8883, net);
@@ -375,6 +386,7 @@ void ICACHE_FLASH_ATTR sendValues() {
       DEBUG_MSG("mqtt done\n");
     } else {
       DEBUG_MSG("mqtt failed\n");
+      errors++;
     }
     mqttclient.loop();
     mqttclient.disconnect();
@@ -383,13 +395,10 @@ void ICACHE_FLASH_ATTR sendValues() {
     sd.rssi = WiFi.RSSI();
   }
 
-  if (loop_count == 1) {
-    XD0OTA ota;
-    ota.update();
-  } else if (loop_count > 720) { // do an update every 12h
-    loop_count = 0;
+  if (errors >= 2) {
+    DEBUG_MSG("[ERROR] could not send any values\nRebooting..\n");
+    ESP.restart();
   }
-  loop_count++;
 
   net.stop();
   WiFi.disconnect(true);

src/main.h

@@ -7,6 +7,6 @@
   #define DEBUG_MSG(...)
 #endif
 
-#define FW_VERSION 35
+#define FW_VERSION 37
 
 #endif /* _MAIN_H */