Check not equal to 0 instead of equal to 1

Author: M65649

scripts/compile_examples.sh

@@ -8,7 +8,7 @@ for d in examples/*/ ; do
         arduino-cli compile -b $BOARD_CONFIG --libraries=".." "$d" --output-dir "builds/mini/$(basename $d)";
 
         # Check the error code
-        if [ $? == 1 ]; then 
+        if [ $? != 0 ]; then 
             exit 1
         fi
 done