Rename firmware for OPC UA server capabilities to "opta_opcua_server" to make it very clear that this specific example is for Arduino Opta (in case we want to support different boards in the future.

Author: aentinger

README.md

@@ -9,7 +9,7 @@ This library provides an implementation of [OPC UA](https://en.wikipedia.org/wik
 Furthermore, the library supports automatic detection, configuration and exposure of up to two Arduino Opta Expansion Boards (i.e. Digital Expansion w/ mechanical relays [`D1608E`](https://store.arduino.cc/products/opta-ext-d1608e), Digital Expansion w/ solid-state relays [`D1608S`](https://store.arduino.cc/products/opta-ext-d1608e), Analog Expansion [`A0602`](https://store.arduino.cc/products/opta-ext-a0602)) via OPC UA.
 
 ### How-to-OPC UA
-* Compile and upload [`examples/opcua_server`](examples/opcua_server/opcua_server.ino)
+* Compile and upload [`examples/opcua_server`](examples/opta_opcua_server/opta_opcua_server.ino)
 ```bash
 arduino-cli compile --fqbn arduino:mbed_opta:opta -v examples/opcua_server -u -p /dev/ttyACM0
 ```

examples/opcua_server/README.md

@@ -0,0 +1,9 @@
+:floppy_disk: `opta_opcua_server.ino`
+=====================================
+
+### How-to-build Modbus MD02 demo
+```bash
+arduino-cli compile --fqbn arduino:mbed_opta:opta \
+  examples/opta_opcua_server -v \
+  --build-property compiler.cpp.extra_flags="-DUSE_MODBUS_SENSOR_MD02=1"
+```