diff --git a/smartapps/sheikhsphere/smart-dehumidifier.src/smart-dehumidifier.groovy b/smartapps/sheikhsphere/smart-dehumidifier.src/smart-dehumidifier.groovy
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+++ b/smartapps/sheikhsphere/smart-dehumidifier.src/smart-dehumidifier.groovy
@@ -0,0 +1,130 @@
+/**
+ *  Smart Humidifier
+ *
+ *  Copyright 2014 Sheikh Dawood
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ *  in compliance with the License. You may obtain a copy of the License at:
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
+ *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
+ *  for the specific language governing permissions and limitations under the License.
+ *
+ */
+definition(
+    name: "Smart Dehumidifier",
+    namespace: "Sheikhsphere",
+    author: "Sheikh Dawood",
+    description: "Turn on/off dehumidifier based on relative humidity from a sensor.",
+    category: "Convenience",
+    iconUrl: "https://graph.api.smartthings.com/api/devices/icons/st.Weather.weather12-icn",
+    iconX2Url: "https://graph.api.smartthings.com/api/devices/icons/st.Weather.weather12-icn?displaySize=2x",
+    iconX3Url: "https://graph.api.smartthings.com/api/devices/icons/st.Weather.weather12-icn?displaySize=3x",
+    oauth: true)
+
+
+preferences {
+	section("Monitor the humidity of:") {
+		input "humiditySensor1", "capability.relativeHumidityMeasurement"
+	}
+	section("When the humidity rises above:") {
+		input "humidityHigh", "number", title: "Percentage ?"
+	}
+    section("When the humidity drops below:") {
+		input "humidityLow", "number", title: "Percentage ?"
+	}
+    section("Control Humidifier:") {
+		input "switch1", "capability.switch"
+	}
+    section( "Notifications" ) {
+        input "sendPushMessage", "enum", title: "Send a push notification?", metadata:[values:["Yes","No"]], required:false
+        input "phone1", "phone", title: "Send a Text Message?", required: false
+    }
+}
+
+def installed() {
+	subscribe(humiditySensor1, "humidity", humidityHandler)
+}
+
+def updated() {
+	unsubscribe()
+	subscribe(humiditySensor1, "humidity", humidityHandler)
+}
+
+def humidityHandler(evt) {
+	log.trace "humidity: $evt.value"
+    log.trace "set high point: $humidityHigh"
+    log.trace "set low point: $humidityLow"
+
+	def currentHumidity = Double.parseDouble(evt.value.replace("%", ""))
+	def humidityHigh1 = humidityHigh 
+    def humidityLow1 = humidityLow 
+	def mySwitch = settings.switch1
+
+	if (currentHumidity >= humidityHigh1) {
+		log.debug "Checking how long the humidity sensor has been reporting >= $humidityHigh1"
+
+		// Don't send a continuous stream of text messages
+		def deltaMinutes = 10 
+		def timeAgo = new Date(now() - (1000 * 60 * deltaMinutes).toLong())
+		def recentEvents = humiditySensor1.eventsSince(timeAgo)
+		log.trace "Found ${recentEvents?.size() ?: 0} events in the last $deltaMinutes minutes"
+		def alreadySentSms1 = recentEvents.count { Double.parseDouble(it.value.replace("%", "")) >= humidityHigh1 } > 1
+
+		if (alreadySentSms1) {
+			log.debug "Notification already sent within the last $deltaMinutes minutes"
+
+		} else {
+         	if (state.lastStatus != "on") {
+                log.debug "Humidity Rose Above $humidityHigh1:  sending SMS and deactivating $mySwitch"
+                send("${humiditySensor1.label} sensed high humidity level of ${evt.value}, turning on ${switch1.label}")
+                switch1?.on()
+                state.lastStatus = "on"
+            }
+		}
+	}
+    else if (currentHumidity <= humidityLow1) {
+		log.debug "Checking how long the humidity sensor has been reporting <= $humidityLow1"
+
+		// Don't send a continuous stream of text messages
+		def deltaMinutes = 10 
+		def timeAgo = new Date(now() - (1000 * 60 * deltaMinutes).toLong())
+		def recentEvents = humiditySensor1.eventsSince(timeAgo)
+		log.trace "Found ${recentEvents?.size() ?: 0} events in the last $deltaMinutes minutes"
+		def alreadySentSms2 = recentEvents.count { Double.parseDouble(it.value.replace("%", "")) <= humidityLow1 } > 1
+
+		if (alreadySentSms2) {
+			log.debug "Notification already sent within the last $deltaMinutes minutes"
+
+		} else {
+        	if (state.lastStatus != "off") {
+                log.debug "Humidity Dropped Below $humidityLow1:  sending SMS and activating $mySwitch"
+                send("${humiditySensor1.label} sensed low humidity level of ${evt.value}, turning off ${switch1.label}")
+                switch1?.off()
+                state.lastStatus = "off"
+            }
+		}
+	}
+    else {
+    	//log.debug "Humidity remained in threshold:  sending SMS to $phone1 and activating $mySwitch"
+		//send("${humiditySensor1.label} sensed humidity level of ${evt.value} is within threshold, keeping off ${switch1.label}")
+    	//switch1?.off()
+    }
+}
+
+private send(msg) {
+    if ( sendPushMessage != "No" ) {
+        log.debug( "sending push message" )
+        sendPush( msg )
+    }
+
+    if ( phone1 ) {
+        log.debug( "sending text message" )
+        sendSms( phone1, msg )
+    }
+
+    log.debug msg
+}
+