diff --git a/src/base/init.lua b/src/base/init.lua
index 1adeaca..ff8f0d9 100644
--- a/src/base/init.lua
+++ b/src/base/init.lua
@@ -3,14 +3,14 @@ __main = coroutine.create(function(__run)
     --Packages Used: file, timer, node, wifi, net, mqtt, gpio, uart
     --Global Constant
     -----------------
-    VERSION = 'v1.0';
+    VERSION = 'v1.1';
     HOSTNAME = file.getcontents('cfg/HOSTNAME') or 'default';
     WIFI_SSID = file.getcontents('cfg/WIFI_SSID') or 'sola';
     WIFI_PASSWD = file.getcontents('cfg/WIFI_PASSWD') or 'c5ce4dfbbd7f';
     MQTT_SERVER = file.getcontents('cfg/MQTT_SERVER') or '192.168.3.6';
     MQTT_PORT = file.getcontents('cfg/MQTT_PORT') or '1883';
     SCRIPT = 'script.lua';
-    MQTT_KEEP_ALIVE = 60;
+    MQTT_KEEP_ALIVE = 10;
     MQTT_TOPIC_PREFIX = '/hass/'..HOSTNAME..'/';
     MQTT_RECONNECT_DELAY = 10 * 1000;
     MQTT_PUBLISH_INTERVAL = 100;
@@ -26,7 +26,12 @@ __main = coroutine.create(function(__run)
     REG = function(topic, payload)
         mqtt_publish_queue[topic] = payload;
     end
-    
+
+    --Error Log
+    node.setonerror(function(s)
+        file.putcontents('err_msg', s);
+        node.restart();
+    end);
 
     --Load User-defined Script
     -----------------
@@ -80,10 +85,13 @@ __main = coroutine.create(function(__run)
         m:close();
         m:connect(MQTT_SERVER, MQTT_PORT, false);
     end
+    --lwt
+    m:lwt(MQTT_TOPIC_PREFIX..'online', '0', 0, 1);
     --MQTT events
     m:on("connect", function(m) 
         FLAG_mqtt_status = true;
         m:subscribe({[MQTT_TOPIC_PREFIX..'ctl/#']=0, [MQTT_TOPIC_PREFIX..'debug/#']=0});
+        m:publish(MQTT_TOPIC_PREFIX..'online', '1', 0, 1);
     end);
     m:on("connfail", function(m, errCode) 
         FLAG_mqtt_status = false;
@@ -120,7 +128,7 @@ __main = coroutine.create(function(__run)
         if FLAG_mqtt_status then
             local topic, payload = next(mqtt_publish_queue);
             if topic then
-                m:publish(topic, payload, 0, 0);
+                m:publish(topic, payload, 0, string.find(topic, MQTT_TOPIC_PREFIX..'snsr') and 1 or 0);
                 mqtt_publish_queue[topic] = nil;
             end
         end
diff --git a/src/base/swi.lua b/src/base/swi.lua
index ca1c901..91fee77 100644
--- a/src/base/swi.lua
+++ b/src/base/swi.lua
@@ -11,7 +11,7 @@ SWI = function(f, T, TH)
             F.s('swi', s);
         end
     end
-    tmr.create():alarm(50, tmr.ALARM_AUTO, function()
+    tmr.create():alarm(250, tmr.ALARM_AUTO, function()
         local v = adc.read(0);
         if DEBUG then 
             REG(M..'debug/swi', v..','..(v-fv));