diff --git a/.github/scripts/install-arduino-core-esp32.sh b/.github/scripts/install-arduino-core-esp32.sh
index 05193132..cf1026d6 100755
--- a/.github/scripts/install-arduino-core-esp32.sh
+++ b/.github/scripts/install-arduino-core-esp32.sh
@@ -2,39 +2,33 @@
 
 export ARDUINO_ESP32_PATH="$ARDUINO_USR_PATH/hardware/espressif/esp32"
 if [ ! -d "$ARDUINO_ESP32_PATH" ]; then
-	echo "Installing ESP32 Arduino Core in '$ARDUINO_ESP32_PATH'..."
+	echo "Installing ESP32 Arduino Core ..."
 	script_init_path="$PWD"
-	mkdir -p "$ARDUINO_USR_PATH/hardware/espressif" && \
+	mkdir -p "$ARDUINO_USR_PATH/hardware/espressif"
 	cd "$ARDUINO_USR_PATH/hardware/espressif"
-	if [ $? -ne 0 ]; then exit 1; fi
 
-	if [ "$GITHUB_REPOSITORY" == "espressif/arduino-esp32" ];  then
-		echo "Linking Core..." && \
-		ln -s $GITHUB_WORKSPACE esp32
-	else
-		echo "Cloning Core Repository..." && \
-		git clone https://github.com/espressif/arduino-esp32.git esp32 > /dev/null 2>&1
-		if [ $? -ne 0 ]; then echo "ERROR: GIT clone failed"; exit 1; fi
-	fi
-
-	cd esp32 && \
-	echo "Updating Submodules..." && \
-	git submodule update --init --recursive > /dev/null 2>&1
-	if [ $? -ne 0 ]; then echo "ERROR: Submodule update failed"; exit 1; fi
-
-	echo "Installing Python Serial..." && \
+	echo "Installing Python Serial ..."
 	pip install pyserial > /dev/null
-	if [ $? -ne 0 ]; then echo "ERROR: Install failed"; exit 1; fi
 
 	if [ "$OS_IS_WINDOWS" == "1" ]; then
-		echo "Installing Python Requests..."
+		echo "Installing Python Requests ..."
 		pip install requests > /dev/null
-		if [ $? -ne 0 ]; then echo "ERROR: Install failed"; exit 1; fi
 	fi
 
-	echo "Installing Platform Tools..."
+	if [ "$GITHUB_REPOSITORY" == "espressif/arduino-esp32" ];  then
+		echo "Linking Core..."
+		ln -s $GITHUB_WORKSPACE esp32
+	else
+		echo "Cloning Core Repository..."
+		git clone https://github.com/espressif/arduino-esp32.git esp32 > /dev/null 2>&1
+	fi
+
+	echo "Updating Submodules ..."
+	cd esp32
+	git submodule update --init --recursive > /dev/null 2>&1
+
+	echo "Installing Platform Tools ..."
 	cd tools && python get.py
-	if [ $? -ne 0 ]; then echo "ERROR: Download failed"; exit 1; fi
 	cd $script_init_path
 
 	echo "ESP32 Arduino has been installed in '$ARDUINO_ESP32_PATH'"
diff --git a/.github/scripts/install-arduino-ide.sh b/.github/scripts/install-arduino-ide.sh
index 1ee02bf7..7950a49f 100755
--- a/.github/scripts/install-arduino-ide.sh
+++ b/.github/scripts/install-arduino-ide.sh
@@ -46,28 +46,23 @@ else
 fi
 
 if [ ! -d "$ARDUINO_IDE_PATH" ]; then
-	echo "Installing Arduino IDE on $OS_NAME..."
-	echo "Downloading 'arduino-nightly-$OS_NAME.$ARCHIVE_FORMAT' to 'arduino.$ARCHIVE_FORMAT'..."
+	echo "Installing Arduino IDE on $OS_NAME ..."
+	echo "Downloading 'arduino-nightly-$OS_NAME.$ARCHIVE_FORMAT' to 'arduino.$ARCHIVE_FORMAT' ..."
 	if [ "$OS_IS_LINUX" == "1" ]; then
 		wget -O "arduino.$ARCHIVE_FORMAT" "https://www.arduino.cc/download.php?f=/arduino-nightly-$OS_NAME.$ARCHIVE_FORMAT" > /dev/null 2>&1
-		if [ $? -ne 0 ]; then echo "ERROR: Download failed"; exit 1; fi
-		echo "Extracting 'arduino.$ARCHIVE_FORMAT'..."
+		echo "Extracting 'arduino.$ARCHIVE_FORMAT' ..."
 		tar xf "arduino.$ARCHIVE_FORMAT" > /dev/null
-		if [ $? -ne 0 ]; then exit 1; fi
 		mv arduino-nightly "$ARDUINO_IDE_PATH"
 	else
 		curl -o "arduino.$ARCHIVE_FORMAT" -L "https://www.arduino.cc/download.php?f=/arduino-nightly-$OS_NAME.$ARCHIVE_FORMAT" > /dev/null 2>&1
-		if [ $? -ne 0 ]; then echo "ERROR: Download failed"; exit 1; fi
-		echo "Extracting 'arduino.$ARCHIVE_FORMAT'..."
+		echo "Extracting 'arduino.$ARCHIVE_FORMAT' ..."
 		unzip "arduino.$ARCHIVE_FORMAT" > /dev/null
-		if [ $? -ne 0 ]; then exit 1; fi
 		if [ "$OS_IS_MACOS" == "1" ]; then
 			mv "Arduino.app" "/Applications/Arduino.app"
 		else
 			mv arduino-nightly "$ARDUINO_IDE_PATH"
 		fi
 	fi
-	if [ $? -ne 0 ]; then exit 1; fi
 	rm -rf "arduino.$ARCHIVE_FORMAT"
 
 	mkdir -p "$ARDUINO_USR_PATH/libraries"
@@ -95,7 +90,7 @@ function build_sketch(){ # build_sketch <fqbn> <path-to-ino> [extra-options]
 	fi
 
 	echo ""
-	echo "Compiling '"$(basename "$sketch")"'..."
+	echo "Compiling '"$(basename "$sketch")"' ..."
 	mkdir -p "$ARDUINO_BUILD_DIR"
 	mkdir -p "$ARDUINO_CACHE_DIR"
 	$ARDUINO_IDE_PATH/arduino-builder -compile -logger=human -core-api-version=10810 \
@@ -115,9 +110,13 @@ function build_sketch(){ # build_sketch <fqbn> <path-to-ino> [extra-options]
 function count_sketches() # count_sketches <examples-path>
 {
 	local examples="$1"
+    rm -rf sketches.txt
+	if [ ! -d "$examples" ]; then
+		touch sketches.txt
+		return 0
+	fi
     local sketches=$(find $examples -name *.ino)
     local sketchnum=0
-    rm -rf sketches.txt
     for sketch in $sketches; do
         local sketchdir=$(dirname $sketch)
         local sketchdirname=$(basename $sketchdir)
@@ -163,8 +162,10 @@ function build_sketches() # build_sketches <fqbn> <examples-path> <chunk> <total
 		return 1
 	fi
 
+	set +e
     count_sketches "$examples"
     local sketchcount=$?
+	set -e
     local sketches=$(cat sketches.txt)
     rm -rf sketches.txt
 
diff --git a/.github/scripts/install-platformio-esp32.sh b/.github/scripts/install-platformio-esp32.sh
old mode 100644
new mode 100755
index e822a5ca..ce6de4a2
--- a/.github/scripts/install-platformio-esp32.sh
+++ b/.github/scripts/install-platformio-esp32.sh
@@ -2,40 +2,34 @@
 
 export PLATFORMIO_ESP32_PATH="$HOME/.platformio/packages/framework-arduinoespressif32"
 
-echo "Installing Python Wheel..."
+echo "Installing Python Wheel ..."
 pip install wheel > /dev/null 2>&1
-if [ $? -ne 0 ]; then echo "ERROR: Install failed"; exit 1; fi
 
-echo "Installing PlatformIO..."
+echo "Installing PlatformIO ..."
 pip install -U https://github.com/platformio/platformio/archive/develop.zip > /dev/null 2>&1
-if [ $? -ne 0 ]; then echo "ERROR: Install failed"; exit 1; fi
 
-echo "Installing Platform ESP32..."
+echo "Installing Platform ESP32 ..."
 python -m platformio platform install https://github.com/platformio/platform-espressif32.git#feature/stage > /dev/null 2>&1
-if [ $? -ne 0 ]; then echo "ERROR: Install failed"; exit 1; fi
 
-echo "Replacing the framework version..."
+echo "Replacing the framework version ..."
 if [[ "$OSTYPE" == "darwin"* ]]; then
-	sed 's/https:\/\/github\.com\/espressif\/arduino-esp32\.git/*/' "$HOME/.platformio/platforms/espressif32/platform.json" > "platform.json" && \
+	sed 's/https:\/\/github\.com\/espressif\/arduino-esp32\.git/*/' "$HOME/.platformio/platforms/espressif32/platform.json" > "platform.json"
 	mv -f "platform.json" "$HOME/.platformio/platforms/espressif32/platform.json"
 else
 	sed -i 's/https:\/\/github\.com\/espressif\/arduino-esp32\.git/*/' "$HOME/.platformio/platforms/espressif32/platform.json"
 fi
-if [ $? -ne 0 ]; then echo "ERROR: Replace failed"; exit 1; fi
 
 if [ "$GITHUB_REPOSITORY" == "espressif/arduino-esp32" ];  then
-	echo "Linking Core..." && \
+	echo "Linking Core..."
 	ln -s $GITHUB_WORKSPACE "$PLATFORMIO_ESP32_PATH"
 else
-	echo "Cloning Core Repository..." && \
+	echo "Cloning Core Repository ..."
 	git clone https://github.com/espressif/arduino-esp32.git "$PLATFORMIO_ESP32_PATH" > /dev/null 2>&1
-	if [ $? -ne 0 ]; then echo "ERROR: GIT clone failed"; exit 1; fi
 fi
 
 echo "PlatformIO for ESP32 has been installed"
 echo ""
 
-
 function build_pio_sketch(){ # build_pio_sketch <board> <path-to-ino>
     if [ "$#" -lt 2 ]; then
         echo "ERROR: Illegal number of parameters"
@@ -43,20 +37,24 @@ function build_pio_sketch(){ # build_pio_sketch <board> <path-to-ino>
         return 1
     fi
 
-	local board="$1"
-	local sketch="$2"
-	local sketch_dir=$(dirname "$sketch")
-	echo ""
-	echo "Compiling '"$(basename "$sketch")"'..."
-	python -m platformio ci  --board "$board" "$sketch_dir" --project-option="board_build.partitions = huge_app.csv"
+    local board="$1"
+    local sketch="$2"
+    local sketch_dir=$(dirname "$sketch")
+    echo ""
+    echo "Compiling '"$(basename "$sketch")"' ..."
+    python -m platformio ci --board "$board" "$sketch_dir" --project-option="board_build.partitions = huge_app.csv"
 }
 
 function count_sketches() # count_sketches <examples-path>
 {
-	local examples="$1"
+    local examples="$1"
+    rm -rf sketches.txt
+    if [ ! -d "$examples" ]; then
+        touch sketches.txt
+        return 0
+    fi
     local sketches=$(find $examples -name *.ino)
     local sketchnum=0
-    rm -rf sketches.txt
     for sketch in $sketches; do
         local sketchdir=$(dirname $sketch)
         local sketchdirname=$(basename $sketchdir)
@@ -91,35 +89,37 @@ function build_pio_sketches() # build_pio_sketches <board> <examples-path> <chun
         chunks_num="1"
     fi
 
-	if [ "$chunks_num" -le 0 ]; then
-		echo "ERROR: Chunks count must be positive number"
-		return 1
-	fi
-	if [ "$chunk_idex" -ge "$chunks_num" ]; then
-		echo "ERROR: Chunk index must be less than chunks count"
-		return 1
-	fi
+    if [ "$chunks_num" -le 0 ]; then
+        echo "ERROR: Chunks count must be positive number"
+        return 1
+    fi
+    if [ "$chunk_idex" -ge "$chunks_num" ]; then
+        echo "ERROR: Chunk index must be less than chunks count"
+        return 1
+    fi
 
+    set +e
     count_sketches "$examples"
     local sketchcount=$?
+    set -e
     local sketches=$(cat sketches.txt)
     rm -rf sketches.txt
 
     local chunk_size=$(( $sketchcount / $chunks_num ))
     local all_chunks=$(( $chunks_num * $chunk_size ))
     if [ "$all_chunks" -lt "$sketchcount" ]; then
-    	chunk_size=$(( $chunk_size + 1 ))
+        chunk_size=$(( $chunk_size + 1 ))
     fi
 
     local start_index=$(( $chunk_idex * $chunk_size ))
     if [ "$sketchcount" -le "$start_index" ]; then
-    	echo "Skipping job"
-    	return 0
+        echo "Skipping job"
+        return 0
     fi
 
     local end_index=$(( $(( $chunk_idex + 1 )) * $chunk_size ))
     if [ "$end_index" -gt "$sketchcount" ]; then
-    	end_index=$sketchcount
+        end_index=$sketchcount
     fi
 
     local start_num=$(( $start_index + 1 ))
@@ -141,7 +141,7 @@ function build_pio_sketches() # build_pio_sketches <board> <examples-path> <chun
         sketchnum=$(($sketchnum + 1))
         if [ "$sketchnum" -le "$start_index" ] \
         || [ "$sketchnum" -gt "$end_index" ]; then
-        	continue
+            continue
         fi
         build_pio_sketch "$board" "$sketch"
         local result=$?
diff --git a/.github/scripts/on-push.sh b/.github/scripts/on-push.sh
index 96b88bb8..e0e14ec2 100755
--- a/.github/scripts/on-push.sh
+++ b/.github/scripts/on-push.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 if [ ! -z "$TRAVIS_TAG" ]; then
 	echo "Skipping Test: Tagged build"
 	exit 0
@@ -52,7 +54,6 @@ if [ "$BUILD_PIO" -eq 0 ]; then
 		# CMake Test
 		if [ "$CHUNK_INDEX" -eq 0 ]; then
 			bash "$ARDUINO_ESP32_PATH/.github/scripts/check-cmakelists.sh"
-			if [ $? -ne 0 ]; then exit 1; fi
 		fi
 		build_sketches "$FQBN" "$ARDUINO_ESP32_PATH/libraries" "$CHUNK_INDEX" "$CHUNKS_CNT"
 	fi
@@ -68,4 +69,3 @@ else
 	build_pio_sketch "$BOARD" "$PLATFORMIO_ESP32_PATH/libraries/ESP32/examples/Camera/CameraWebServer/CameraWebServer.ino"
 	#build_pio_sketches esp32dev "$PLATFORMIO_ESP32_PATH/libraries"
 fi
-if [ $? -ne 0 ]; then exit 1; fi