diff --git a/26pingpio-script/26pingpio-script.sh b/26pingpio-script/26pingpio-script.sh
index 9f67f74..b9ee8ba 100644
--- a/26pingpio-script/26pingpio-script.sh
+++ b/26pingpio-script/26pingpio-script.sh
@@ -1,52 +1,14 @@
 #/bin/bash
 
-###   GPIO 18 - LED high,  light on  ###
 ###   GPIO 17 - LED high,  light on  ###
-###   GPIO 62 - LED high,  light on  ###
-
-###   GPIO 81 - LED high,  light on  ###
-###   GPIO 80 - LED high,  light on  ###
-###   GPIO 50 - LED high,  light on  ###
-
-###   GPIO 30 - LED high,  light on  ###
-###   GPIO 29 - LED high,  light on  ###
-###   GPIO 31 - LED high,  light on  ###
-
-###   GPIO 59 - LED high,  light on  ###
-###   GPIO 58 - LED high,  light on  ###
-###   GPIO 51 - LED high,  light on  ###
-
-###   GPIO 61 - LED high,  light on  ###
-###   GPIO 60 - LED high,  light on  ###
-
-###   GPIO 53 - LED high,  light on  ###
-###   GPIO 28 - LED high,  light on  ###
-###   GPIO 52 - LED high,  light on  ###
+###   GPIO 18 - LED high,  light on  ###
+###   GPIO 20 - LED high,  light on  ###
 
 
 RET=0
-EXP_GPIO18=18
 EXP_GPIO17=17
-EXP_GPIO62=62
-
-EXP_GPIO81=81
-EXP_GPIO80=80
-EXP_GPIO50=50
-
-EXP_GPIO30=30
-EXP_GPIO29=29
-EXP_GPIO31=31
-
-EXP_GPIO59=59
-EXP_GPIO58=58
-EXP_GPIO51=51
-
-EXP_GPIO61=61
-EXP_GPIO60=60
-
-EXP_GPIO53=53
-EXP_GPIO28=28
-EXP_GPIO52=52
+EXP_GPIO18=18
+EXP_GPIO20=20
 
 sleep 2
 
@@ -58,176 +20,46 @@ echo "##########################################################################
 source `pwd`/mt_gpio.sh
 
 ####################################################################################################
-if [ ! -f /sys/class/gpio/gpio446/direction ]; then
-	        mt_gpio_export ${EXP_GPIO18}   ### EXP_GPIO18 428 + 18 = 446
-fi
-
-if [ ! -f /sys/class/gpio/gpio445/direction ]; then
-	        mt_gpio_export ${EXP_GPIO17}   ### EXP_GPIO17 428 + 17 = 445
-fi
-
-if [ ! -f /sys/class/gpio/gpio490/direction ]; then
-	        mt_gpio_export ${EXP_GPIO62}   ### EXP_GPIO62 428 + 62 = 490
-fi
-
-if [ ! -f /sys/class/gpio/gpio509/direction ]; then
-	        mt_gpio_export ${EXP_GPIO81}   ### EXP_GPIO81 428 + 81 = 509
-fi
-
-if [ ! -f /sys/class/gpio/gpio508/direction ]; then
-	        mt_gpio_export ${EXP_GPIO80}   ### EXP_GPIO80 428 + 80 = 508
-fi
-
-if [ ! -f /sys/class/gpio/gpio478/direction ]; then
-	        mt_gpio_export ${EXP_GPIO50}   ### EXP_GPIO50 428 + 50 = 478
-fi
-
-if [ ! -f /sys/class/gpio/gpio458/direction ]; then
-	        mt_gpio_export ${EXP_GPIO30}   ### EXP_GPIO30 428 + 30 = 458
-fi
-
-if [ ! -f /sys/class/gpio/gpio457/direction ]; then
-	        mt_gpio_export ${EXP_GPIO29}   ### EXP_GPIO29 428 + 29 = 457
-fi
-
-if [ ! -f /sys/class/gpio/gpio459/direction ]; then
-	        mt_gpio_export ${EXP_GPIO31}   ### EXP_GPIO31 428 + 31 = 459
-fi
-
-if [ ! -f /sys/class/gpio/gpio487/direction ]; then
-	        mt_gpio_export ${EXP_GPIO59}   ### EXP_GPIO59 428 + 59 = 487
-fi
-
-if [ ! -f /sys/class/gpio/gpio486/direction ]; then
-	        mt_gpio_export ${EXP_GPIO58}   ### EXP_GPIO58 428 + 58 = 486
-fi
-
-if [ ! -f /sys/class/gpio/gpio479/direction ]; then
-	        mt_gpio_export ${EXP_GPIO51}   ### EXP_GPIO51 428 + 51 = 479
+if [ ! -f /sys/class/gpio/gpio488/direction ]; then
+	        mt_gpio_export ${EXP_GPIO17}   ### EXP_GPIO17 471 + 17 = 488
 fi
 
 if [ ! -f /sys/class/gpio/gpio489/direction ]; then
-	        mt_gpio_export ${EXP_GPIO61}   ### EXP_GPIO61 428 + 61 = 489
+	        mt_gpio_export ${EXP_GPIO18}   ### EXP_GPIO18 471 + 18 = 489
 fi
 
-if [ ! -f /sys/class/gpio/gpio488/direction ]; then
-	        mt_gpio_export ${EXP_GPIO60}   ### EXP_GPIO60 428 + 60 = 488
+if [ ! -f /sys/class/gpio/gpio491/direction ]; then
+	        mt_gpio_export ${EXP_GPIO20}   ### EXP_GPIO20 471 + 20 = 491
 fi
 
-if [ ! -f /sys/class/gpio/gpio481/direction ]; then
-	        mt_gpio_export ${EXP_GPIO53}   ### EXP_GPIO53 428 + 53 = 481
-fi
-
-if [ ! -f /sys/class/gpio/gpio456/direction ]; then
-	        mt_gpio_export ${EXP_GPIO28}   ### EXP_GPIO28 428 + 28 = 456
-fi
-
-if [ ! -f /sys/class/gpio/gpio480/direction ]; then
-	        mt_gpio_export ${EXP_GPIO52}   ### EXP_GPIO52 428 + 52 = 480
-fi
-
-
 ####################################################################################################
-mt_gpio_dir   ${EXP_GPIO18}  out
 mt_gpio_dir   ${EXP_GPIO17}  out
-mt_gpio_dir   ${EXP_GPIO62}  out
-
-mt_gpio_dir   ${EXP_GPIO81}  out
-mt_gpio_dir   ${EXP_GPIO80}  out
-mt_gpio_dir   ${EXP_GPIO50}  out
-
-mt_gpio_dir   ${EXP_GPIO30}  out
-mt_gpio_dir   ${EXP_GPIO29}  out
-mt_gpio_dir   ${EXP_GPIO31}  out
-
-mt_gpio_dir   ${EXP_GPIO59}  out
-mt_gpio_dir   ${EXP_GPIO58}  out
-mt_gpio_dir   ${EXP_GPIO51}  out
-
-mt_gpio_dir   ${EXP_GPIO61}  out
-mt_gpio_dir   ${EXP_GPIO60}  out
-
-mt_gpio_dir   ${EXP_GPIO53}  out
-mt_gpio_dir   ${EXP_GPIO28}  out
-mt_gpio_dir   ${EXP_GPIO52}  out
+mt_gpio_dir   ${EXP_GPIO18}  out
 
+mt_gpio_dir   ${EXP_GPIO20}  out
 
 ####################################################################################################
 echo "########################## 26PIN GPIO Expand Board Testing Start ##########################"
 
 echo "###  26PIN Expand Board's all LED turn on about 10s   ###"
-mt_gpio_out   ${EXP_GPIO18}  1
 mt_gpio_out   ${EXP_GPIO17}  1
-mt_gpio_out   ${EXP_GPIO62}  1
+mt_gpio_out   ${EXP_GPIO18}  1
 
-mt_gpio_out   ${EXP_GPIO81}  1
-mt_gpio_out   ${EXP_GPIO80}  1
-mt_gpio_out   ${EXP_GPIO50}  1
-
-mt_gpio_out   ${EXP_GPIO30}  1
-mt_gpio_out   ${EXP_GPIO29}  1
-mt_gpio_out   ${EXP_GPIO31}  1
-
-mt_gpio_out   ${EXP_GPIO59}  1
-mt_gpio_out   ${EXP_GPIO58}  1
-mt_gpio_out   ${EXP_GPIO51}  1
-
-mt_gpio_out   ${EXP_GPIO61}  1
-mt_gpio_out   ${EXP_GPIO60}  1
-
-mt_gpio_out   ${EXP_GPIO53}  1
-mt_gpio_out   ${EXP_GPIO28}  1
-mt_gpio_out   ${EXP_GPIO52}  1
+mt_gpio_out   ${EXP_GPIO20}  1
 
 sleep 10
 echo "###  26PIN Expand Board's all LED turn off about 5s   ###"
-mt_gpio_out   ${EXP_GPIO18}  0
 mt_gpio_out   ${EXP_GPIO17}  0
-mt_gpio_out   ${EXP_GPIO62}  0
+mt_gpio_out   ${EXP_GPIO18}  0
 
-mt_gpio_out   ${EXP_GPIO81}  0
-mt_gpio_out   ${EXP_GPIO80}  0
-mt_gpio_out   ${EXP_GPIO50}  0
-
-mt_gpio_out   ${EXP_GPIO30}  0
-mt_gpio_out   ${EXP_GPIO29}  0
-mt_gpio_out   ${EXP_GPIO31}  0
-
-mt_gpio_out   ${EXP_GPIO59}  0
-mt_gpio_out   ${EXP_GPIO58}  0
-mt_gpio_out   ${EXP_GPIO51}  0
-
-mt_gpio_out   ${EXP_GPIO61}  0
-mt_gpio_out   ${EXP_GPIO60}  0
-
-mt_gpio_out   ${EXP_GPIO53}  0
-mt_gpio_out   ${EXP_GPIO28}  0
-mt_gpio_out   ${EXP_GPIO52}  0
+mt_gpio_out   ${EXP_GPIO20}  0
 
 sleep 5
 echo "###  26PIN Expand Board's all LED turn on  ###"
-mt_gpio_out   ${EXP_GPIO18}  1
 mt_gpio_out   ${EXP_GPIO17}  1
-mt_gpio_out   ${EXP_GPIO62}  1
+mt_gpio_out   ${EXP_GPIO18}  1
 
-mt_gpio_out   ${EXP_GPIO81}  1
-mt_gpio_out   ${EXP_GPIO80}  1
-mt_gpio_out   ${EXP_GPIO50}  1
-
-mt_gpio_out   ${EXP_GPIO30}  1
-mt_gpio_out   ${EXP_GPIO29}  1
-mt_gpio_out   ${EXP_GPIO31}  1
-
-mt_gpio_out   ${EXP_GPIO59}  1
-mt_gpio_out   ${EXP_GPIO58}  1
-mt_gpio_out   ${EXP_GPIO51}  1
-
-mt_gpio_out   ${EXP_GPIO61}  1
-mt_gpio_out   ${EXP_GPIO60}  1
-
-mt_gpio_out   ${EXP_GPIO53}  1
-mt_gpio_out   ${EXP_GPIO28}  1
-mt_gpio_out   ${EXP_GPIO52}  1
+mt_gpio_out   ${EXP_GPIO20}  1
 
 
 sleep 2
diff --git a/26pingpio-script/mt_gpio.sh b/26pingpio-script/mt_gpio.sh
index 0b3f7eb..9f72986 100644
--- a/26pingpio-script/mt_gpio.sh
+++ b/26pingpio-script/mt_gpio.sh
@@ -4,7 +4,7 @@ SYS_FILE=/sys/class/gpio
 mt_gpio_export()
 {
    pin=$1
-   let pin=pin+428   ### gpio base 428 ###
+   let pin=pin+471   ### gpio base 471 ###
 
    if [ ! -f ${SYS_FILE}/export ]; then
        echo "${SYS_FILE}/export file is not present"
@@ -19,7 +19,7 @@ mt_gpio_export()
 mt_gpio_dir()
 {
    pin=$1
-   let pin=pin+428   ### gpio base 428 ###
+   let pin=pin+471   ### gpio base 471 ###
    dir=$2
  
    if [ ! -f ${SYS_FILE}/gpio${pin}/direction ]; then
@@ -35,7 +35,7 @@ mt_gpio_dir()
 mt_gpio_out()
 {
    pin=$1
-   let pin=pin+428   ### gpio base 428 ###
+   let pin=pin+471   ### gpio base 471 ###
    out=$2
  
    if [ ! -f ${SYS_FILE}/gpio${pin}/value ]; then
@@ -51,7 +51,7 @@ mt_gpio_out()
 mt_gpio_in()
 {
    pin=$1
-   let pin=pin+428   ### gpio base 428 ###
+   let pin=pin+471   ### gpio base 471 ###
  
    if [ ! -f ${SYS_FILE}/gpio${pin}/value ]; then
        echo "${SYS_FILE}/gpio${pin}/value is not present"