Merge pull request #452 from pennam/cellular

Add Cellular support using Arduino Mid Carrier

Author: pennam

.github/workflows/compile-examples.yml

@@ -170,6 +170,7 @@ jobs:
               - name: arduino:mbed_portenta
             libraries: |
               - name: ArduinoECCX08
+              - name: Arduino_Cellular
             sketch-paths: |
               - examples/ArduinoIoTCloud-DeferredOTA
               - examples/utility/Provisioning
@@ -211,6 +212,8 @@ jobs:
             platforms: |
               # Install renesas_portenta platform via Boards Manager
               - name: arduino:renesas_portenta
+            libraries: |
+              - name: Arduino_Cellular
             sketch-paths: |
               - examples/utility/Provisioning
           # UNO R4 WiFi

src/utility/time/TimeService.cpp

@@ -292,9 +292,11 @@ unsigned long TimeServiceClass::getRemoteTime()
      * This is the most reliable time source and it will
      * ensure a correct behaviour of the library.
      */
-    unsigned long const ntp_time = NTPUtils::getTime(_con_hdl->getUDP());
-    if(isTimeValid(ntp_time)) {
-      return ntp_time;
+    if(_con_hdl->getInterface() != NetworkAdapter::CELL) {
+      unsigned long const ntp_time = NTPUtils::getTime(_con_hdl->getUDP());
+      if(isTimeValid(ntp_time)) {
+        return ntp_time;
+      }
     }
 
     /* As fallback if NTP request fails try to obtain the