OK so here is my modified DH for the Aqara Xiomi QBKG03LM no neutral light switch, it's a bit messy but controls both relays on the switch and detects the buttons being pressed, you can create virtual switches to control the second button, any help to clean up the code would be appreciated this is my first attempt at creating a DH would like to make a child DH but unsure how to 
Cheers Picturepete
/**
*
* 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.
*
* Modified from DTH and simic by a4refillpad and modded again by picturepete
* 08/2018 first release
*/
metadata {
definition (name: "Aqara 2 Button Wired Wall QBKG03LM Switch", namespace: "picturepete", author: "picturepete") {
capability "Actuator"
capability "PushableButton"
capability "Configuration"
capability "Refresh"
capability "Switch"
command "on2"
command "off2"
attribute "switch2","ENUM", ["on","off"]
attribute "lastCheckin", "string"
attribute "buttonPressed", "String"
}
tiles(scale: 2) {
multiAttributeTile(name:"switch", type: "lighting", width: 6, height: 4, canChangeIcon: true){
tileAttribute ("device.switch", key: "PRIMARY_CONTROL") {
attributeState "on", label:'${name}', action:"switch.off", icon:"st.switches.light.on", backgroundColor:"#00a0dc", nextState:"turningOff"
attributeState "off", label:'${name}', action:"switch.on", icon:"st.switches.light.off", backgroundColor:"#ffffff", nextState:"turningOn"
attributeState "turningOn", label:'${name}', action:"switch.off", icon:"st.switches.light.on", backgroundColor:"#00a0dc", nextState:"turningOff"
attributeState "turningOff", label:'${name}', action:"switch.on", icon:"st.switches.light.off", backgroundColor:"#ffffff", nextState:"turningOn"
}
tileAttribute("device.lastCheckin", key: "SECONDARY_CONTROL") {
attributeState("default", label:'Last Update: ${currentValue}',icon: "st.Health & Wellness.health9")
}
}
standardTile("switch2", "device.switch2", width: 2, height: 2, canChangeIcon: true) {
state "off", label: '${name}', action: "on2", icon: "st.switches.switch.off", backgroundColor: "#ffffff"
state "on", label: '${name}', action: "off2", icon: "st.switches.switch.on", backgroundColor: "#79b821"
}
valueTile("temperature", "device.temperature", width: 2, height: 2) {
state("temperature", label:'${currentValue}°',
backgroundColors:[
[value: 31, color: "#153591"],
[value: 44, color: "#1e9cbb"],
[value: 59, color: "#90d2a7"],
[value: 74, color: "#44b621"],
[value: 84, color: "#f1d801"],
[value: 95, color: "#d04e00"],
[value: 96, color: "#bc2323"]
]
)
}
standardTile("refresh", "device.refresh", inactiveLabel: false, decoration: "flat", width: 2, height: 2) {
state "default", label:"", action:"refresh.refresh", icon:"st.secondary.refresh"
}
main (["switch", "switch2", "temperature"])
details(["switch", "switch2", "temperature", "refresh"])
}
}
// Parse incoming device messages to generate events
def parse(String description) {
log.debug "Parsing '${description}'"
def value = zigbee.parse(description)?.text
def endpoint = description.split(",").find {it.split(":")[0].trim() == "endpoint"}?.split(":")[1].trim()
def cluster = description.split(",").find {it.split(":")[0].trim() == "cluster"}?.split(":")[1].trim()
def attrId = description.split(",").find {it.split(":")[0].trim() == "attrId"}?.split(":")[1].trim()
def valueHex = description.split(",").find {it.split(":")[0].trim() == "value"}?.split(":")[1].trim()
log.debug "Parse: $value"
Map map = [:]
if (description?.startsWith('catchall:')) {
map = parseCatchAllMessage(description)
}
else if (cluster == "0006") {
// Parse button press: endpoint 01 = left, 02 = right, 03 = both
map = parseButtonPress(Integer.parseInt(endpoint))
}
else if (description?.startsWith('read attr -')) {
map = parseReportAttributeMessage(description)
}
else if (description?.startsWith('on/off: ')){
def resultMap = zigbee.getKnownDescription(description)
log.debug "${resultMap}"
map = parseCustomMessage(description)
}
log.debug "Parse returned $map"
// send event for heartbeat
def now = new Date()
sendEvent(name: "lastCheckin", value: now)
def results = map ? createEvent(map) : null
return results;
}
private Map parseButtonPress(value) {
def pushType = ["", "Left", "Right", "Both"]
def descText = "${pushType[value]} button${(value == 3) ? "s" : ""} pressed (Button $value pushed)"
displayInfoLog(descText)
displayDebugLog("Setting buttonPressed to current date/time for webCoRE")
sendEvent(name: "buttonPressed", value: now(), descriptionText: "Updated buttonPressed (webCoRE)")
return [
name: 'pushed',
value: value,
isStateChange: true,
descriptionText: descText
]
}
private def displayDebugLog(message) {
if (debugLogging) log.debug "${device.displayName}: ${message}"
}
private def displayInfoLog(message) {
if (infoLogging || state.prefsSetCount != 1)
log.info "${device.displayName}: ${message}"
}
private Map parseCatchAllMessage(String description) {
Map resultMap = [:]
def cluster = zigbee.parse(description)
log.debug cluster
if (cluster.clusterId == 0x0006 && cluster.command == 0x01){
def onoff = cluster.data[-1]
if (onoff == 1)
resultMap = createEvent(name: "switch", value: "on")
else if (onoff == 0)
resultMap = createEvent(name: "switch", value: "off")
}
return resultMap
}
private Map parseReportAttributeMessage(String description) {
Map descMap = (description - "read attr - ").split(",").inject([:]) { map, param ->
def nameAndValue = param.split(":")
map += [(nameAndValue[0].trim()):nameAndValue[1].trim()]
}
//log.debug "Desc Map: $descMap"
Map resultMap = [:]
if (descMap.cluster == "0001" && descMap.attrId == "0020") {
resultMap = getBatteryResult(convertHexToInt(descMap.value / 2))
}
if (descMap.cluster == "0002" && descMap.attrId == "0000") {
resultMap = createEvent(name: "temperature", value: zigbee.parseHATemperatureValue("temperature: " + (convertHexToInt(descMap.value) / 2), "temperature: ", getTemperatureScale()), unit: getTemperatureScale())
log.debug "Temperature Hex convert to ${resultMap.value}%"
}
else if (descMap.cluster == "0008" && descMap.attrId == "0000") {
resultMap = createEvent(name: "switch", value: "off")
}
return resultMap
}
def off() {
log.debug "off()"
sendEvent(name: "switch", value: "off")
"st cmd 0x${device.deviceNetworkId} 2 6 0 {}"
}
def on() {
log.debug "on()"
sendEvent(name: "switch", value: "on")
"st cmd 0x${device.deviceNetworkId} 2 6 1 {}"
}
def off2() {
log.debug "off2()"
sendEvent(name: "switch2", value: "off")
"st cmd 0x${device.deviceNetworkId} 3 6 0 {}"
}
def on2() {
log.debug "on2()"
sendEvent(name: "switch2", value: "on")
"st cmd 0x${device.deviceNetworkId} 3 6 1 {}"
}
def refresh() {
log.debug "refreshing"
[
"st rattr 0x${device.deviceNetworkId} 1 6 0", "delay 500",
"st rattr 0x${device.deviceNetworkId} 1 6 0", "delay 250",
"st rattr 0x${device.deviceNetworkId} 1 2 0", "delay 250",
"st rattr 0x${device.deviceNetworkId} 1 1 0", "delay 250",
"st rattr 0x${device.deviceNetworkId} 1 0 0"
]
}
private Map parseCustomMessage(String description) {
def result
if (description?.startsWith('on/off: ')) {
if (description == 'on/off: 0')
result = createEvent(name: "switch", value: "off")
else if (description == 'on/off: 1')
result = createEvent(name: "switch", value: "on")
}
return result
}
private Integer convertHexToInt(hex) {
Integer.parseInt(hex,16)
}
