diff --git a/GPIO.rar b/GPIO.rar
new file mode 100644
index 0000000..d7360ee
Binary files /dev/null and b/GPIO.rar differ
diff --git a/GPIO.zip b/GPIO.zip
deleted file mode 100644
index 7a4cb22..0000000
Binary files a/GPIO.zip and /dev/null differ
diff --git a/GPIO/ClientDoor.json b/GPIO/ClientDoor.json
index 6285014..0bff5e5 100644
--- a/GPIO/ClientDoor.json
+++ b/GPIO/ClientDoor.json
@@ -1 +1,9 @@
-{"servers": {"name": "MQTT local","host": "tcp://192.168.0.89:1883","user": "beetai","pass": "Admin@123"},"clients": {"name": "Door 1","topic": "device/gpio/1","active": 1}}
+{
+  "servers": {
+    "name": "MQTT local",
+    "host": "tcp://192.168.10.200:1883",
+    "user": "beetai",
+    "pass": "Admin@123"
+  },
+  "clients": { "name": "Door 1", "topic": "device/gpio/1", "active": 1 }
+}
diff --git a/GPIO/GPIO b/GPIO/GPIO
index 8a3166d..9c3ede1 100644
Binary files a/GPIO/GPIO and b/GPIO/GPIO differ
diff --git a/GPIO/GPIO.go b/GPIO/GPIO.go
index 19524ae..76d0c10 100644
--- a/GPIO/GPIO.go
+++ b/GPIO/GPIO.go
@@ -38,6 +38,12 @@ var CMS_PASS_BI = ""
 var CMS_TOPIC_IN = ""
 var CMS_TOPIC_OUT = ""
 
+// Counter number reconnect publish
+var number_repub = 0
+
+// Counter number reconnect subcriber
+var number_resub = 0
+
 // const CMS_HOST_BI  = "tcp://broker.beetai.com:21883"
 
 // const CMS_ACCESS_TOKEN_BI  = "beeetai"
@@ -51,12 +57,18 @@ var CMS_TOPIC_OUT = ""
 
 // var CMS_TOPIC_IN  = "gpio/devices/beetin/in/+"
 // var CMS_TOPIC_OUT  = "gpio/devices/beetin/out/+"
+
 var time_now int = 0
 var Name string = ""
 var door_state bool
+
+// Check mqtt connect
+var stt_mqtt = false
+var num_reconnect_pub = 0
+var num_reconnect_sub = 0
 var (
 	// Use mcu pin 10, corresponds to physical pin 19 on the pi
-	relay = rpio.Pin(6) // 6- raspberry pi 1 / 9 - raspberry 3B+
+	relay = rpio.Pin(9) // 6- raspberry pi 1 / 9 - raspberry 3B+
 )
 
 // {
@@ -154,9 +166,9 @@ func main() {
 
 	}
 	fmt.Println(door)
-	mqtt_begin()
+
 	//SetConnectionLostHandler(connLostHandler)
-	mqtt_cms_bi.Subscribe(CMS_TOPIC_IN, 0, mqtt_messageHandler)
+	// mqtt_cms_bi.Subscribe(CMS_TOPIC_IN, 0, mqtt_messageHandler)
 
 	// Open and map memory to access gpio, check for errors
 	if err := rpio.Open(); err != nil {
@@ -169,10 +181,14 @@ func main() {
 	defer rpio.Close()
 	// Set pin to output mode
 	relay.Output()
-	relay.PullUp()
+	//relay.PullUp()
+	relay.PullDown()
 	// Toggle pin 20 times
 	//go Check_door()
 	for {
+		if stt_mqtt == false {
+			mqtt_begin()
+		}
 		Check_door()
 	}
 }
@@ -183,7 +199,8 @@ func connLostHandler(c mqtt.Client, err error) {
 func Check_door() {
 	if door_state == true {
 		time.Sleep(time.Second * time_hold)
-		relay.Low()
+		//relay.Low()
+		relay.High()
 		if Debug == 1 {
 			fmt.Println("Close Door")
 			fmt.Println("--------------------------------")
@@ -239,10 +256,15 @@ func MQTTLostConnectHandler(c mqtt.Client, err error) {
 func MQTTOnConnectHandler(client mqtt.Client) {
 	// file.Write_log("Reconnect: MQTT_OnConnectHandler\n", box.Path_log_luncher)
 	fmt.Println("Reconnect: MQTT_OnConnectHandler\n")
-	mqtt_cms_bi.Unsubscribe(CMS_TOPIC_IN)
-	time.Sleep(10)
-	mqtt_cms_bi.Subscribe(CMS_TOPIC_IN, 0, mqtt_messageHandler)
-	fmt.Println("Recall function Subscribe MQTT\n")
+	//mqtt_cms_bi.Unsubscribe(CMS_TOPIC_IN)
+	//time.Sleep(10)
+	//mqtt_cms_bi.Subscribe(CMS_TOPIC_IN, 0, mqtt_messageHandler)
+	if token := client.Subscribe(CMS_TOPIC_IN, 0, mqtt_messageHandler); token.Wait() && token.Error() != nil {
+		fmt.Println(token.Error())
+	} else {
+		fmt.Println("Subcriber is MQTTOnConnectHandler () OKIE ")
+	}
+	//fmt.Println("Recall function Subscribe MQTT\n")
 	// file.Write_log("Recall function Subscribe MQTT\n", box.Path_log_luncher)
 }
 
@@ -279,7 +301,8 @@ func mqtt_messageHandler(mqtt_bi mqtt.Client, message mqtt.Message) {
 			if door_state == true {
 
 			} else {
-				relay.High()
+				//relay.High()
+				relay.Low()
 				Name = (list["name"]).(string)
 				fmt.Println("Xin Chao Mung " + Name)
 			}
diff --git a/GPIO/install_mqtt.sh b/GPIO/install_mqtt.sh
new file mode 100644
index 0000000..e363187
--- /dev/null
+++ b/GPIO/install_mqtt.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+sudo apt-get update
+sudo apt-get install mosquitto
+echo "user: beetai ; Nhap pass: Admin@123"
+sudo mosquitto_passwd -c /etc/mosquitto/passwd beetai
+echo "allow_anonymous false \n password_file /etc/mosquitto/passwd" >> /etc/mosquitto/conf.d/default.conf
+sudo systemctl restart mosquitto
+exit 0