diff --git a/AvrDataTypes/build/build.sh b/AvrDataTypes/build/build.sh
index fae2af6b..818d6212 100755
--- a/AvrDataTypes/build/build.sh
+++ b/AvrDataTypes/build/build.sh
@@ -1,6 +1,16 @@
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
+canonical_link=`readlink -f ${0}`
+build_dir=`dirname $canonical_link`
+
 echo "Ccoffee Script starts"
 echo "---------------------------------------------"
-source compile.sh
-source upload.sh
+source "${build_dir}/compile.sh"
+source "${build_dir}/upload.sh"
 echo "---------------------------------------------"
 echo "Ccoffee Script finishes"
diff --git a/AvrDataTypes/build/compile.sh b/AvrDataTypes/build/compile.sh
index 6755adae..1afe99b0 100755
--- a/AvrDataTypes/build/compile.sh
+++ b/AvrDataTypes/build/compile.sh
@@ -1,20 +1,34 @@
-source variables.sh
-export LC_ALL=C
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
+# export all locales as "en_US.UTF-8" for the gcc compiler 
+export LC_ALL="en_US.UTF-8"
+
+canonical_link=`readlink -f ${0}`
+build_dir=`dirname $canonical_link`
+
+source "${build_dir}/variables.sh"
+
 function compile() {
 	# attrs : dir to compile & sharedLib name
-        nativeSources=`find ${project}'/main' -name '*.c' -o -name '*.cxx' -o -name '*.cpp' -o -name '*.h' -o -name '*.c++'`
+	native_sources=`find ${project}'/main' -name '*.c' -o -name '*.cxx' -o -name '*.cpp' -o -name '*.h' -o -name '*.c++'`
 
-	sudo ${AVR_HOME}'/bin/avr-g++' \
-	-mmcu=${CHIP} ${nativeSources} \
+	sudo ${avr_home}'/bin/avr-g++' \
+	-mmcu=${CHIP} ${native_sources} \
 	-O2 				           \
-	-I${AVR_HOME}'/avr/include'    \
+	-I${avr_home}'/avr/include'    \
 	-I${project}'/main/include'    \
 	-o ${output}
+
 	return $?
 }
 
 function convertToHex() {
-  	 ${AVR_HOME}'/bin/avr-objcopy' -O ihex ${output} ${output}'.hex'
+  	 ${avr_home}'/bin/avr-objcopy' -O ihex ${output} ${output}'.hex'
 	 return $?
 }
 
@@ -22,7 +36,9 @@ echo -e "${WHITE_C} --MajorTask@Compile : Compiling the project"
 
 echo -e ${RESET_Cs}
 
-if [[ ! `compile` -eq 0 ]]; then
+compile
+
+if [[ ! $? -eq 0 ]]; then
 	echo -e "${RED_C} --MajorTask@Compile : Failed compiling sources, exits with errno500."
 	exit 500
 else 
@@ -31,10 +47,14 @@ fi
 echo -e ${RESET_Cs}
 
 echo -e "${WHITE_C} --MajorTask@Hexing : Creating Hex file"
-if [[ ! `convertToHex` -eq 0 ]]; then
+
+convertToHex
+
+if [[ ! $? -eq 0 ]]; then
 	echo -e "${RED_C} --MajorTask@Hexing : Failed to create hex file, exits with errno600."
 	exit 600
 else 
 	echo -e "${GREEN_C} --MajorTask@Hexing : Hex file created successfully."
 fi
+
 echo -e ${RESET_Cs}
diff --git a/AvrDataTypes/build/readPort.sh b/AvrDataTypes/build/readPort.sh
index 6bcf6972..dfe3099d 100755
--- a/AvrDataTypes/build/readPort.sh
+++ b/AvrDataTypes/build/readPort.sh
@@ -1,18 +1,44 @@
-PORT='/dev/ttyUSB0'
-BAUD_RATE='57600'
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
 
-echo "\n"
+canonical_link=`readlink -f ${0}`
+build_dir=`dirname $canonical_link`
 
-echo "Started reading PORT [$PORT] to terminate hold [CTRL+A+D]\n"
+source "${build_dir}/variables.sh"
 
-adjustBaudRate() {
+function prepare() {
+    sudo apt-get install screen 
+}
+
+function adjustBaudRate() {
     stty -F $1 $2
 }
 
-readPort() {
-    screen "$1" "$BAUD_RATE"
+function holdStill() {
+    for ((i = 0; i < 4; i++))
+    do 
+        sleep 2
+        printf "....."
+    done
+    printf "\n"
+}
+
+function readPort() {
+    screen -R "READ-PORT" -U "$1" "$BAUD_RATE"
 }
 
+printf "Preparing the [screen] util\n"
+
+prepare
+
 adjustBaudRate "$PORT" "$BAUD_RATE"
 
+printf "Started reading PORT [$PORT] to terminate hold [CTRL+A+D]\n"
+
+holdStill
+
 readPort "$PORT"
diff --git a/AvrDataTypes/build/upload.sh b/AvrDataTypes/build/upload.sh
index f0dcc326..6aaa663b 100755
--- a/AvrDataTypes/build/upload.sh
+++ b/AvrDataTypes/build/upload.sh
@@ -1,4 +1,14 @@
-source variables.sh
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
+canonical_link=`readlink -f ${0}`
+build_dir=`dirname $canonical_link`
+
+source "${build_dir}/variables.sh"
 
 function prepare() {
 	sudo stty -F ${PORT} ${BAUD_RATE}
@@ -8,12 +18,18 @@ function upload() {
 	sudo avrdude -c ${PROGRAMMER} -b${BAUD_RATE} -P${PORT} -p${CHIP_ALIAS} -F -U flash:w:${output}'.hex'
 	return $?
 }
+
 prepare
+
 echo -e "${WHITE_C} --MajorTask@UploadingCode : Uploading Hex file"
-if [[ ! `upload` -eq 0 ]]; then
+
+upload
+
+if [[ ! $? -eq 0 ]]; then
 	echo -e "${RED_C} --MajorTask@UploadingCode : Failed to upload hex file, exits with errno700."
 	exit 700
 else 
 	echo -e "${GREEN_C} --MajorTask@UploadingCode : Task finished."
 fi
+
 echo -e ${RESET_Cs}
diff --git a/AvrDataTypes/build/variables.sh b/AvrDataTypes/build/variables.sh
index 0282c41e..5fe891f2 100644
--- a/AvrDataTypes/build/variables.sh
+++ b/AvrDataTypes/build/variables.sh
@@ -3,18 +3,17 @@
 #*
 #* @author pavl_g.
 #*#
+#!/bin/sh
 
+canonical_link=`readlink -f ${0}`
+build_dir=`dirname $canonical_link`
 
-# define work directory
-# 1) print the current working directory to a string value
-pwd=`pwd`
 # cut the working directory from its end by a one '/' delimiter
-project="${pwd%/*}"
+project="${build_dir%/*}"
 # cut the working directory from its end by a one '/' delimiter again
 rootProject="${project%/*}"
-# pass the value of the dire
 
-clibName=('libAvrDataTypes')
+object_file=('hello-avr-types.elf')
 # AVR-DUDE properties
 BAUD_RATE='57600'
 PORT='/dev/ttyUSB0'
@@ -22,6 +21,6 @@ CHIP='atmega328p'
 CHIP_ALIAS='m328'
 PROGRAMMER='arduino'
 # Common Variables contain colors
-source ${rootProject}'/CommonVariables.sh'
-source ${rootProject}'/AVR__HOME.sh'
-output=${project}'/output/'${clibName}
+source ${rootProject}'/common-variables.sh'
+source ${rootProject}'/avr-home.sh'
+output=${project}'/output/'${object_file}
diff --git a/AvrDataTypes/main/lib/SerialCounter.c b/AvrDataTypes/main/lib/SerialCounter.c
index 02b5b262..96094188 100644
--- a/AvrDataTypes/main/lib/SerialCounter.c
+++ b/AvrDataTypes/main/lib/SerialCounter.c
@@ -3,7 +3,7 @@
 
 void SerialCounter::Counter::start(volatile uint8_t& PORT) {
     volatile uint8_t CLK = 0x00;
-    while(HIGH) {
+    while (HIGH) {
 	_delay_ms(DELAY/2);
 	PORT = HIGH << (++CLK % UINT8_MAX);
 	_delay_ms(DELAY/2);
diff --git a/AvrDataTypes/output/hello-avr-types.elf b/AvrDataTypes/output/hello-avr-types.elf
new file mode 100755
index 00000000..c752531a
Binary files /dev/null and b/AvrDataTypes/output/hello-avr-types.elf differ
diff --git a/AvrDataTypes/output/hello-avr-types.elf.hex b/AvrDataTypes/output/hello-avr-types.elf.hex
new file mode 100644
index 00000000..eb81b7d8
--- /dev/null
+++ b/AvrDataTypes/output/hello-avr-types.elf.hex
@@ -0,0 +1,208 @@
+:100000000C9434000C9451000C9451000C94510049
+:100010000C9451000C9451000C9451000C9451001C
+:100020000C9451000C9451000C9451000C9451000C
+:100030000C9451000C9451000C9451000C945100FC
+:100040000C9451000C9451000C9451000C945100EC
+:100050000C9451000C9451000C9451000C945100DC
+:100060000C9451000C94510011241FBECFEFD8E026
+:10007000DEBFCDBF12E0A0E0B1E0E2E3FBE002C0F2
+:1000800005900D92A03BB107D9F722E0A0EBB2E0BA
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diff --git a/AvrDataTypes/output/libAvrDataTypes b/AvrDataTypes/output/libAvrDataTypes
deleted file mode 100755
index 091c57aa..00000000
Binary files a/AvrDataTypes/output/libAvrDataTypes and /dev/null differ
diff --git a/AvrDataTypes/output/libAvrDataTypes.hex b/AvrDataTypes/output/libAvrDataTypes.hex
deleted file mode 100644
index 29e40aa4..00000000
--- a/AvrDataTypes/output/libAvrDataTypes.hex
+++ /dev/null
@@ -1,201 +0,0 @@
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diff --git a/avr-home.sh b/avr-home.sh
new file mode 100755
index 00000000..b0c23021
--- /dev/null
+++ b/avr-home.sh
@@ -0,0 +1,15 @@
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
+# store the value of the working directory
+tmp=`pwd`
+# get back to the root project to find the toolchain
+cd ../..
+project_root=`pwd`
+avr_home=$project_root'/avr8-gnu-toolchain-linux_x86_64'
+# get back to the working directory
+cd $tmp
diff --git a/common-variables.sh b/common-variables.sh
new file mode 100755
index 00000000..e7854b7c
--- /dev/null
+++ b/common-variables.sh
@@ -0,0 +1,37 @@
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
+# Bash colors using ANSI
+# favored the 24-bit (3 colors * 8-bit for each one<255>) color system
+# Colors
+# process failure color
+RED_C='\033[38;2;255;50;50m'
+# success color
+GREEN_C='\e[38;2;0;180;0m'
+# extra
+WHITE_C='\e[38;2;255;255;255m'
+# Java color
+ORANGE_C='\e[38;2;250;155;0m'
+# C alternative color
+DARK_GREY_C='\e[1;30m'
+# kotlin color
+VIOLET_C='\e[38;2;217;80;223m'
+# groovy color
+CYAN_C='\e[38;2;0;155;255m'
+# C++ color
+MAGNETA_C='\e[38;2;170;150;150m'
+# Scala color
+BRIGHT_RED_C='\e[38;2;200;120;120m'
+# Highlights
+RED_H='\033[1;41m'
+GREEN_H='\033[1;42m'
+WHITE_H='\e[1;47m'
+# Flashes
+RED_C_F='\033[1;5;41m'
+GREEN_C_F='\033[1;5;42m'
+WHITE_C_F='\e[1;5;47m'
+RESET_Cs='\033[0;0m'
diff --git a/launch-sandbox-setup.sh b/launch-sandbox-setup.sh
index c6611cc8..120386a6 100755
--- a/launch-sandbox-setup.sh
+++ b/launch-sandbox-setup.sh
@@ -1,5 +1,15 @@
-source setup-sanbox.sh
-source CommonVariables.sh
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
+canonical_link=`readlink -f ${0}`
+sandbox_dir=`dirname $canonical_link`
+
+source "${sandbox_dir}/setup-sanbox.sh"
+source "${$sandbox_dir}/common-variables.sh"
 
 confirmDownload
 
diff --git a/setup-sanbox.sh b/setup-sanbox.sh
index 5c6801f5..6ccfe0e1 100755
--- a/setup-sanbox.sh
+++ b/setup-sanbox.sh
@@ -1,4 +1,11 @@
 
+#**
+#* Ccoffee Build tool, manual build, alpha-v1.
+#*
+#* @author pavl_g.
+#*#
+#!/bin/sh
+
 # setup variables
 avrgcc_compressed='avr-gcc.tar.gz'