added RS485 dependency in gituhub actions, fixed unused methods from Utils.h

Author: cristidragomir97

.github/workflows/compile-examples.yml

@@ -68,6 +68,7 @@ jobs:
             - source-path: ./
             - name: Arduino_USBHostMbed5
             - name: Arduino_POSIXStorage
+            - name: Arduino_RS485
             # Additional library dependencies can be listed here.
             # See: https://github.com/arduino/compile-sketches#libraries
           sketch-paths: |

src/Utils.h

@@ -9,7 +9,7 @@
 #if !defined(HAS_SERIAL) && defined(HAS_RS485)
 #include <ArduinoRS485.h>
 
-static void beginRS485(const int baudrate){
+[[gnu::unused]] static void beginRS485(const int baudrate){
     const auto bitduration { 1.f / baudrate };
     const auto wordlen { 9.6f }; // OR 10.0f depending on the channel configuration
     const auto preDelayBR { bitduration * wordlen * 3.5f * 1e6 };
@@ -20,7 +20,7 @@ static void beginRS485(const int baudrate){
     RS485.noReceive();
 }
 
-void debugPrintRS485(String s){
+[[gnu::unused]] void debugPrintRS485(String s){
     static bool rs485Initialized = false;
     if (!rs485Initialized) {
       beginRS485(115200);
@@ -34,7 +34,7 @@ void debugPrintRS485(String s){
 
 #endif
 
-static void debugPrint(String s){
+[[gnu::unused]] static void debugPrint(String s){
   #if defined(ARDUINO_UNIFIED_STORAGE_DEBUG)
     #if defined(HAS_SERIAL)
       Serial.println(s);