try and fix freeze

src/main.cpp

@@ -37,7 +37,7 @@ const char* mqttusername PROGMEM = "esp-weatherstation";
 const char* mqttpassword PROGMEM = PWD_MQTT;
 
 constexpr unsigned int postingInterval = 60000; //Uploadintervall in Millisekunden
-constexpr unsigned int dhcp_interval = 3*60*1000;
+constexpr unsigned int dhcp_interval = 60*60*1000;
 
 uint32_t loop_count = 0;
 
@@ -88,6 +88,10 @@ ADC_MODE(ADC_VCC);
 
 ESP8266WiFiMulti wifiMulti;
 
+HTTPClient httpclient;
+WiFiClientSecure net;
+MQTTClient mqttclient(MQTT_MAX_PACKET_SIZE);
+
 os_timer_t Timer1;
 RunningAverage geigeraverage(10);
 
@@ -333,7 +337,6 @@ void ICACHE_FLASH_ATTR sendValues() {
   int httpCode = 0;
   for (int tries=0; tries<3 && httpCode != HTTP_CODE_CREATED; tries++) {
 
-    HTTPClient httpclient;
     char url[100];
     sprintf(url, "http://%s/boxes/%s/data", server, SENSEBOX_ID);
 
@@ -357,9 +360,6 @@ void ICACHE_FLASH_ATTR sendValues() {
 
   }
 
-  WiFiClientSecure net;
-  MQTTClient mqttclient(MQTT_MAX_PACKET_SIZE);
-
   net.setInsecure();
   mqttclient.begin(mqttserver, 8883, net);
   int tries = 0;
@@ -400,10 +400,10 @@ void ICACHE_FLASH_ATTR sendValues() {
 }
 
 // geiger event when gpio pulled low (called vin on board)
-/*void ICACHE_RAM_ATTR ISR_geiger_impulse() {
+void ICACHE_RAM_ATTR ISR_geiger_impulse() {
   geiger_counts++;
-  DEBUG_MSG("X");
-}*/
+  //DEBUG_MSG("X\n");
+}
 
 
 void setup() {
@@ -428,11 +428,10 @@ void setup() {
   dht.begin();
 
   pinMode(GEIGER_PIN, INPUT);
-  //attachInterrupt(digitalPinToInterrupt(GEIGER_PIN), ISR_geiger_impulse, FALLING);
 
   geigeraverage.clear();
 
-  //WiFi.persistent(false); // don't load and save credentials to flash
+  WiFi.persistent(false); // don't load and save credentials to flash
   WiFi.mode(WIFI_STA);
   wifiMulti.addAP("nether.net", PWD_NETHERNET);
   wifiMulti.addAP("LNet", PWD_LNET);
@@ -444,6 +443,7 @@ void setup() {
 }
 
 void loop() {
+  attachInterrupt(digitalPinToInterrupt(GEIGER_PIN), ISR_geiger_impulse, FALLING);
   unsigned long currentMillis = rtcMillis();
   if ((currentMillis - previousMillis) >= postingInterval) {
     previousMillis = currentMillis;
@@ -457,6 +457,7 @@ void loop() {
   DEBUG_MSG("heap: %d\n", ESP.getFreeHeap());
 
   delay(10);
+  detachInterrupt(digitalPinToInterrupt(GEIGER_PIN));
   lightsleep();
   delay(10); // debounce?
 }