This plugin allows to control cheap (15US$ or so) WiFi Based Switches like the Kankun Wifi Smart plug
based on HTTP-GET calls and JSON Responses
i will try to make it more flexible in matters of variables and url-calls, right now the urls are hardcoded and so are the expected responses
the plugin will ping the switch to find out its online [urn:mios-nullx8-com:serviceId:HttpSwitch1:PingStatus]
the poll will also get the signal level and display it on the dashboard [urn:mios-nullx8-com:serviceId:HttpSwitch1:LinkStatus]
Compatible with
Kankun Wifi Smart plug http://goo.gl/Nqivgt (need to be “hacked”, done in 4 small steps … info in the Plugin zip under _Hacks)
Requirements
UI5 only: akb-json need to be on the vera to parse json responses (use I_HttpSwitch1_UI5.xml)
a few braincells, 5 minutes of your life, 1 or 2 cup of Coffee (or Red-Bull)
Installation
download and upload the files in the zip file. (only the 4 files in the root, files in subfolders are not required on the vera)
mios apps.mios.com or in “Apps->Install apps” by searching “httpswitch”.
after reload … make sure you set an ip in the field “address” … and reload again!
added some reference of a website about hte “hack”
Zip file here to download the json.cgi and some bad documentation on how to do it
[/li][li]1.13 15 Aug 2015
private json decode function to avoid json lib errors thanks to cybrmage for this code sniplet
[/li][li]1.1 14 Aug 2015
added UI5 Implementation file (with some reason startup Lua can not detect the version)
on UI7 loads the default json lib (still required akb-json on UI5)
[/li][li]1.0 10 Aug 2015
no ip warning
added to store[/li]
[li]0.5 9 Aug 2015
ping the Switch to ensure its online (skip polling if no ping reply much faster than waiting the wget to timeout)[/li]
[li]0.3 3 Aug 2015
show wifi signal of the switch[/li]
[li]0.21 3 Aug 2015
read json responses (requiress now ‘akb-json’)[/li]
[li]0.1 26 Jul 2015
Init (just on off … no status)[/li][/ul]
ToDo
[ul][li]use of default IP-Field instead of custom field (dont know how to do that yet)[/li]
[li]custom URI[/li]
[li]custom responses (maybe a set of possible responses or response relations in variable … no idea yet)[/li]
[li]offline Warning[/li]
[li]multiple devices[/li]
[li]small format alignment errors in Device Settings - UI5[/li]
[li]small alignment errors in main Screen - UI7[/li][/ul]
I found a youtube clip in Russian (I think) where it is opened and analyzed but the video is out of focus most of the time and I cant understand the language.
yeah but they more expensive for no reason http://goo.gl/ApmBvp
if you order a chinese one … you get an adapter for free[/quote]
Marketing
At a quick glance it looks OK but it appears that it would block the second outlet on a standard North American Duplex outlet.
i might buy one of the ‘universal’ versions mostly top play with the Plug In. BTW, is the source for the plug in available? I’ve never written a plug in and mostly i’m curious about structure and coding.
Could your plugin be modified so it can read status/control openhab switches, which can also be controlled/read with REST calls?
This would make an excellent link from Vera to Openhab (and not vice versa as existing today via an openhab binding)
[quote=“stefaanbolle, post:8, topic:188358”]Could your plugin be modified so it can read status/control openhab switches, which can also be controlled/read with REST calls?
This would make an excellent link from Vera to Openhab (and not vice versa as existing today via an openhab binding)[/quote]
thats a good idea … i played with openHAB … but iam allergic to Java (unless its in my Cup)
i made something semilar already as vera controller … (php based)
i’ll install openHAB somewhere to test …
give me a few days
with some reason in startupLua luup.version does not work
until i find out how to check for the lua version i added a “I_HttpSwitch1_UI5.xml” to use on UI5 devices with akb-json
If you move your application code out of the implementation file (I_HttpSwitch1.xml) into it’s own lua file (ie: L_HttpSwitch1.lua), the startup code will have access to the luup.version_branch, luup.version_major and luup.version_minor system variables.
Once you move the code to its own file, you need to add a reference to it in the implementation file:
<implementation>
<files>L_HttpSwitch1.lua</files>
<startup>main</startup>
<actionlist>
-- add actions here
</actionlist>
<implementation>
that (and the version about table check you suggested in the json thread)
results in decode error
LuaInterface::CallFunction_Job device 245 function SHttpSwitch1_HttpSwitch1_On_job failed [string "..."]:69: attempt to call field 'decode' (a nil value)
only on UI5
works perfectly on UI7
if i “just” do
endecoder = require("akb-json")
everything works without change any code
the code it fails is really simple
local status, result = luup.inet.wget(url,6)
if status == 0 then
local data = endecoder.decode(result)
local PowerState = data['state'];
luup.variable_set(HS_SID, "Status", PowerState, parentDevice)
luup.variable_set("urn:upnp-org:serviceId:SwitchPower1", "Status", PowerState, parentDevice)
......
[quote=“nullx8, post:13, topic:188358”]that (and the version about table check you suggested in the json thread)
results in decode error[/quote]
That is really strange… Both the EVL3 plugin and the Wink Connect plugin check the luup.version_[bulid,major,minor] variables in the startup code using a seperate lua file…
If you don’t need to encode json, use the decode_json function that I posted in the json thread… It’s small, self contained, and does not require any external libraries…
If you need to encode json, let me know… I have a compact, self contained encode function too…
I made a few changes (added a ping check, so the vera wont try to get the status if the ping fails, makes things alot more stable) and no more UI5 file
