         
     // Return the status via serial.
     Serial.println(status_json);
+
+    // Terminate our serial response.
+    Serial.println(RESP_OK);
 }
 
 // getCardStatus()

    } else {
        Serial.println(RESP_DBG_OFF);
    }
}

// debug_print()

    Serial.print(CMD_HELP);
    Serial.print("\t");
    Serial.println("Show usage information");

    // Terminate our serial response.
    Serial.println(RESP_OK);
}
