[CHF-572] Added Health Check Implementation for Zen Thermostat.

devicetypes/zenwithin/zen-thermostat.src/.st-ignore

@@ -0,0 +1,2 @@
+.st-ignore
+README.md

devicetypes/zenwithin/zen-thermostat.src/README.md

@@ -0,0 +1,37 @@
+# Zen Thermostat
+
+Cloud Execution
+
+Works with: 
+
+* [Zen Thermostat](https://www.smartthings.com/works-with-smartthings/zen/zen-thermostat)
+
+## Table of contents
+
+* [Capabilities](#capabilities)
+* [Health](#device-health)
+
+## Capabilities
+
+* **Actuator** - represents that a Device has commands
+* **Thermostat** - allows for the control of a thermostat device
+* **Temperature Measurement** - get the temperature from a Device that reports current temperature
+* **Configuration** - _configure()_ command called when device is installed or device preferences updated
+* **Refresh** - _refresh()_ command for status updates
+* **Sensor** - it represents that a Device has attributes
+* **Health Check** - indicates ability to get device health notifications
+
+## Device Health
+
+Zen Thermostat with reporting interval of 5 mins.
+SmartThings platform will ping the device after `checkInterval` seconds of inactivity in last attempt to reach the device before marking it `OFFLINE` 
+
+* __12min__ checkInterval
+
+
+## Troubleshooting
+
+If the device doesn't pair when trying from the SmartThings mobile app, it is possible that the device is out of range.
+Pairing needs to be tried again by placing the device closer to the hub.
+Other troubleshooting tips are listed as follows:
+* [Zen Thermostat Troubleshooting:](https://support.smartthings.com/hc/en-us/articles/204356564-Zen-Thermostat)

devicetypes/zenwithin/zen-thermostat.src/zen-thermostat.groovy

@@ -12,8 +12,9 @@ metadata {
     capability "Configuration"
     capability "Refresh"
     capability "Sensor"
+    capability "Health Check"
 
-    fingerprint profileId: "0104", endpointId: "01", inClusters: "0000,0001,0003,0004,0005,0020,0201,0202,0204,0B05", outClusters: "000A, 0019"
+    fingerprint profileId: "0104", endpointId: "01", inClusters: "0000,0001,0003,0004,0005,0020,0201,0202,0204,0B05", outClusters: "000A, 0019", manufacturer: "Zen Within", model: "Zen-01", deviceJoinName: "Zen Thermostat"
     
     //attribute "temperatureUnit", "number"
       
@@ -467,8 +468,12 @@ def fanAuto() {
     "st wattr 0x${device.deviceNetworkId} 1 0x202 0 0x30 {05}"
 }
 
-
-
+/**
+ * PING is used by Device-Watch in attempt to reach the Device
+ * */
+def ping() {
+    refresh()
+}
 
 // =============== SmartThings Default Fucntions: refresh, configure, poll ===============
 def refresh()
@@ -502,6 +507,7 @@ def poll()
 
 def configure() 
 {
+    sendEvent(name: "checkInterval", value: 60 * 12, displayed: false, data: [protocol: "zigbee", hubHardwareId: device.hub.hardwareID])
     log.debug "configure() - binding & attribute report"
     [
           //Set long poll interval to 2 qs