Hi All,
I am fairly new to SmartThings and not a programmer by profession.
I have been using a lovely simple Device Handler (URI Switch by tguerena), which works perfectly and reliably for my application.
Recently I purchased some different URI switches (www.dfrobot.com DFR289) which require Json to control them. I thought this would be easy to sort out. I have the switches online and working, using the native supplied app. I also have the Json strings needed. However, I can’t find a simple example for a URI/Json Switch Device Handler and am tying myself in knots trying to write one. My total effort is below. Can someone please point me in the right direction as I am totally confused trying to understand how to implement the SmartThings developers documentation for Json.
Thanks in advance
/*
- Author: N Vass
- Json Switch Device Handler
*/
preferences {
section("Internal Access"){
input "internal_ip", "text", title: "Internal IP", required: false
input "internal_port", "text", title: "Internal Port (if not 80)", required: false
input "json_on", "text", title: "On Json", required: false
input "json_off", "text", title: "Off Jason", required: false
}
}
metadata {
definition (name: “Json Switch v4”, namespace: “NVass”, author: “N Vass”) {
capability “Actuator”
capability “Switch”
}
// simulator metadata
simulator {
}
// UI tile definitions
tiles {
standardTile("button", "device.switch", width: 2, height: 2, canChangeIcon: true) {
state "off", label: 'Off', action: "switch.on", icon: "st.switches.switch.off", backgroundColor: "#ffffff", nextState: "on"
state "on", label: 'On', action: "switch.off", icon: "st.switches.switch.on", backgroundColor: "#79b821", nextState: "off"
}
standardTile("offButton", "device.button", width: 1, height: 1, canChangeIcon: true) {
state "default", label: 'Force Off', action: "switch.off", icon: "st.switches.switch.off", backgroundColor: "#ffffff"
}
standardTile("onButton", "device.switch", width: 1, height: 1, canChangeIcon: true) {
state "default", label: 'Force On', action: "switch.on", icon: "st.switches.switch.on", backgroundColor: "#79b821"
}
main "button"
details (["button","onButton","offButton"])
}
}
def parse(String description) {
log.debug(description)
}
def on() {
if (json_on){
def port
if (internal_port){
port = “${internal_port}”
} else {
port = 80
}
def result = new physicalgraph.device.HubAction(
method: "POST",
body: "${json_on}",
headers: [
HOST: "${internal_ip}:${port}"
]
)
sendHubCommand(result)
sendEvent(name: "switch", value: "on")
log.debug "Executing ON"
log.debug result
}
}
def off() {
if (json_off){
def port
if (internal_port){
port = “${internal_port}”
} else {
port = 80
}
def result = new physicalgraph.device.HubAction(
method: "POST",
body: "${json_off}",
headers: [
HOST: "${internal_ip}:${port}"
]
)
sendHubCommand(result)
sendEvent(name: "switch", value: "off")
log.debug "Executing OFF"
log.debug result
}
}
