Provide conversion of expansion type to string for easier reading.

examples/opcua_server/opcua_server.ino

@@ -322,7 +322,8 @@ void setup()
       uint8_t const opta_expansion_num = OptaController.getExpansionNum();
       UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "OptaController %d expansion modules detected.", opta_expansion_num);
       for(uint8_t i = 0; i < opta_expansion_num; i++)
-        UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "Expansion %d: type = %d, I2C address= 0x%02X", i, OptaController.getExpansionType(i), OptaController.getExpansionI2Caddress(i));
+        UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "Expansion %d: type = %d (\"%16s\"), I2C address= 0x%02X",
+                    i, OptaController.getExpansionType(i), opcua::ArduinoOptaExpansionType::toStr(OptaController.getExpansionType(i)).c_str(), OptaController.getExpansionI2Caddress(i));
 
 #if USE_MODBUS_SENSOR_MD02
       {

src/ArduinoOpta.h

@@ -23,6 +23,7 @@
 #include "DigitalInputManager.h"
 #include "UserButton.h"
 #include "ArduinoOptaVariant.h"
+#include "ArduinoOptaExpansionType.h"
 
 /**************************************************************************************
  * NAMESPACE

src/ArduinoOptaExpansionType.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2024 Arduino
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+/**************************************************************************************
+ * INCLUDE
+ **************************************************************************************/
+
+#include <string>
+
+#include "OptaBlue.h"
+
+/**************************************************************************************
+ * NAMESPACE
+ **************************************************************************************/
+
+namespace opcua
+{
+
+/**************************************************************************************
+ * CLASS DECLARATION
+ **************************************************************************************/
+
+class ArduinoOptaExpansionType
+{
+public:
+  ArduinoOptaExpansionType() = delete;
+  ArduinoOptaExpansionType(ArduinoOptaExpansionType const &) = delete;
+
+  static std::string toStr(ExpansionType_t const type)
+  {
+    if(type == EXPANSION_NOT_VALID)
+      return std::string("Invalid");
+    else if(type == EXPANSION_OPTA_DIGITAL_MEC)
+      return std::string("Digital [Mech.]");
+    else if(type == EXPANSION_OPTA_DIGITAL_STS)
+      return std::string("Digital [Solid]");
+    else if(type == EXPANSION_DIGITAL_INVALID)
+      return std::string("Digital [Inva.]");
+    else if(type == EXPANSION_OPTA_ANALOG)
+      return std::string("Analog");
+    else
+      return std::string("Unknown");
+  }
+};
+
+/**************************************************************************************
+ * NAMESPACE
+ **************************************************************************************/
+
+}