fix erase without wifi settings

added minute wise ntp check

src/app.cpp

@@ -19,6 +19,7 @@ void app::setup(uint32_t timeout) {
         yield();
 
     addListener(EVERY_SEC, std::bind(&app::uptimeTick, this));
+    addListener(EVERY_MIN, std::bind(&app::minuteTick, this));
     addListener(EVERY_12H, std::bind(&app::ntpUpdateTick, this));
 
     resetSystem();

src/app.h

@@ -155,6 +155,8 @@ class app : public ah::Scheduler {
                 ESP.restart();
             }
 
+
+
             if (mUpdateNtp) {
                 mUpdateNtp = false;
                 mUtcTimestamp = mWifi->getNtpTime();
@@ -162,6 +164,13 @@ class app : public ah::Scheduler {
             }
         }
 
+        void minuteTick(void) {
+            if(0 == mUtcTimestamp) {
+                if(!mWifi->getApActive())
+                    mUpdateNtp = true;
+            }
+        }
+
         void ntpUpdateTick(void) {
             if (!mWifi->getApActive())
                 mUpdateNtp = true;

src/config/settings.h

@@ -245,13 +245,18 @@ class settings {
     private:
         void loadDefaults(bool wifi = true) {
             DPRINTLN(DBG_INFO, F("loadDefaults"));
-
-            memset(&mCfg, 0, sizeof(settings_t));
             if(wifi) {
                 snprintf(mCfg.sys.stationSsid, SSID_LEN,    FB_WIFI_SSID);
                 snprintf(mCfg.sys.stationPwd,  PWD_LEN,     FB_WIFI_PWD);
-                snprintf(mCfg.sys.deviceName,  DEVNAME_LEN, DEF_DEVICE_NAME);
             }
+            else {
+                cfgSys_t tmp;
+                memset(&tmp.adminPwd, 0, PWD_LEN);
+                memcpy(&tmp, &mCfg.sys, sizeof(cfgSys_t));
+                memset(&mCfg, 0, sizeof(settings_t));
+                memcpy(&mCfg.sys, &tmp, sizeof(cfgSys_t));
+            }
+            snprintf(mCfg.sys.deviceName,  DEVNAME_LEN, DEF_DEVICE_NAME);
 
             mCfg.nrf.sendInterval      = SEND_INTERVAL;
             mCfg.nrf.maxRetransPerPyld = DEF_MAX_RETRANS_PER_PYLD;

src/defines.h

@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       5
-#define VERSION_PATCH       39
+#define VERSION_PATCH       40
 
 //-------------------------------------
 typedef struct {