added error when compiling unsupported connection handler

Author: andreagilardoni

Diff for: src/CatM1ConnectionHandler.h

@@ -28,6 +28,10 @@
   #include <GSM.h>
 #endif
 
+#ifndef BOARD_HAS_CATM1_NBIOT
+  #error "Board doesn't support CATM1_NBIOT"
+#endif
+
 /******************************************************************************
    CLASS DECLARATION
  ******************************************************************************/

Diff for: src/CellularConnectionHandler.h

@@ -27,6 +27,10 @@
 #include <Arduino_Cellular.h>
 #endif
 
+#ifndef BOARD_HAS_CELLULAR
+  #error "Board doesn't support CELLULAR"
+#endif
+
 class CellularConnectionHandler : public ConnectionHandler
 {
   public:

Diff for: src/EthernetConnectionHandler.h

@@ -32,6 +32,10 @@
   #include <PortentaEthernet.h>
 #endif
 
+#ifndef BOARD_HAS_ETHERNET
+  #error "Board doesn't support ETHERNET"
+#endif
+
 /******************************************************************************
    CLASS DECLARATION
  ******************************************************************************/

Diff for: src/GSMConnectionHandler.h

@@ -28,6 +28,10 @@
   #include <MKRGSM.h>
 #endif
 
+#ifndef BOARD_HAS_GSM
+  #error "Board doesn't support GSM"
+#endif
+
 /******************************************************************************
    CLASS DECLARATION
  ******************************************************************************/

Diff for: src/LoRaConnectionHandler.h

@@ -28,7 +28,10 @@
   #include <MKRWAN.h>
 #endif
 
-#ifdef BOARD_HAS_LORA /* Only compile if the board has LoRa */
+#ifndef BOARD_HAS_LORA
+  #error "Board doesn't support LORA"
+#endif
+
 
 /******************************************************************************
    CLASS DECLARATION
@@ -78,6 +81,4 @@ class LoRaConnectionHandler : public ConnectionHandler
     LoRaModem _modem;
 };
 
-#endif /* #ifdef BOARD_HAS_LORA */
-
 #endif /* ARDUINO_LORA_CONNECTION_HANDLER_H_ */

Diff for: src/NBConnectionHandler.h

@@ -28,6 +28,10 @@
   #include <MKRNB.h>
 #endif
 
+#ifndef BOARD_HAS_NB
+  #error "Board doesn't support NB"
+#endif
+
 /******************************************************************************
    CLASS DECLARATION
  ******************************************************************************/

Diff for: src/WiFiConnectionHandler.h

@@ -48,6 +48,10 @@
   #include <WiFiS3.h>
 #endif
 
+#ifndef BOARD_HAS_WIFI
+  #error "Board doesn't support WIFI"
+#endif
+
 /******************************************************************************
    CLASS DECLARATION
  ******************************************************************************/