Merge pull request #2776 from benderl/bugfix

backport client_factory

packages/modules/internal_chargepoint_handler/clients.py

@@ -96,7 +96,14 @@ def client_factory(local_charge_point_num: int,
     resolved_devices = [str(file.resolve()) for file in tty_devices]
     log.debug("resolved_devices"+str(resolved_devices))
     counter = len(resolved_devices)
-    if counter == 1 and resolved_devices[0] in BUS_SOURCES:
+    if counter == 0:
+        # Wenn kein USB-Gerät gefunden wird, wird der Modbus-Anschluss der AddOn-Platine genutzt (/dev/serial0)
+        serial_client = ModbusSerialClient_("/dev/serial0")
+        if local_charge_point_num == 0:
+            evse_ids = EVSE_ID_CP0
+        else:
+            evse_ids = EVSE_ID_ONE_BUS_CP1
+    elif counter == 1 and resolved_devices[0] in BUS_SOURCES:
         if local_charge_point_num == 0:
             log.error("LP0 Device: "+str(resolved_devices[0]))
             serial_client = ModbusSerialClient_(resolved_devices[0])