3d printer octoprint domoticz monitoring

[borgkitty]

I was wondering if anybody has played around with the idea of monitoring their 3d printer if you have one?
If you have an rpi controlling it with octoprint you should be able to query it via the api for at the bare minimum temperatures of bed and hot end
have a look. it runs from what I gather very similar with json which I am guessing can be asked for the extracted and pushed to temp sensors

http://docs.octoprint.org/en/master/api ... tool-state

I realise that octoprint has a nice interface which I use and quite like and putting it on domoticz wouldn't be a complete replacement nor I'm I trying to replace it. I just figure since it has an api the core temps and some other variables could be ported over

I am not that good at coding so I think this will take me a long ass time to code. just wanted some feedback from more experienced coders as if you think it would be possible
nor can I find information on this as it seems no one has done this before

[borgkitty]

right well, I shall assume that no one has as by the lack of replies and I can't find anything on google

I shall dive into the head first and go balls deep
even though I can't code LUA then I shall create a walk through if I am sucessful

[Fnys]

Did you do anything with this? I just installed octoprint to use with my new 3d printer.. I was thinking about using a fibaro wall plug to kill the power to the printer when it's done and stuff like that..

[Varazir]

right well, I shall assume that no one has as by the lack of replies and I can't find anything on google

I shall dive into the head first and go balls deep
even though I can't code LUA then I shall create a walk through if I am sucessful

I stand in line

[borgkitty]

lol sorry guys, not on this forum much and i do so many different projects i frequently forget about other projects i had. I would like this but havent even started it. probably wont happen till i prioritize my projects plus you need octoprint and i had it running on my 3d printer which i stopped using octoprint bc it broke and im lazy to fix it

[bjacobse]

Hi, I was searching for exact same solution and I have something working, I only need to understand if print is in progress or done, I don't mind temperature so this you need to fix yourself...

It requires octoprint + mqtt plugin. The MQTT plugin to be setup to your broker (my broker is mosquitto running on Domoticz RPI server)

Then on your domoticz server it's required:
mosquitto + node-red, setup here: http://www.domoticz.com/wiki/MQTT
also to setup a dummy text device, my idx: 224, so you need to modify idx accordingly

when node-red is working, check your server:1880
then CTRL-i and insert the below text, as this will setup your flow, my idx: 224
[EDIT 2018-01-05] as I had a minor bug and comma was shown in percentages below 10 was showing up as 5,% (if the number was 5%)

[{"id":"5d05beab.45536","type":"function","z":"5828a86.49629d8","name":"Send progress to dummy idx","func":"//Get progess 0-99\nvar progress = parseInt(msg.payload.substring(13,15));\n\n//Clear msg buffer\nmsg.payload = {};\n\n//Set dummy idx number here:\nmsg.payload.idx = 224;\nif (progress === 0){\n msg.payload.svalue = (\"On\");\n} else \nif ((progress >= 0) && (progress < 99)){\n msg.payload.svalue = (\"Print progress: \"+ progress +\"%\");\n} else \nif (progress == 99){\n msg.payload.svalue = (\"Print done\");\n} else {\n msg.payload.svalue = (\"Printer off\");\n}\n\nreturn msg;","outputs":1,"noerr":0,"x":486.5,"y":184,"wires":[["e5923d30.e4c248","a52de4f4.5fcb1"]]}]

device.png (10.75 KiB) Viewed 10803 times

print_done.png (16.15 KiB) Viewed 10795 times

node-red.png (16.11 KiB) Viewed 10803 times

[bjacobse]

In octoprint you specify your mqtt broker ip address, I have put here xxx.xxx.xxx.xxx, no need to change anything else

octoprint_mqtt.png (98.38 KiB) Viewed 10772 times

[dp106]

Hey, thanks for doing all the hard work for me! Took me a while but think I finally have this working. I wasn't really happy with the function parsing the payload as text when it was effectively a JSON string so I think doing this is better:

Code: Select all

var varPayload = JSON.parse(msg.payload);
var vartemp = varPayload.actual;

I think this allows for the payload changing in the future.

Full code from the function

Code: Select all

var varPayload = JSON.parse(msg.payload);
var vartemp = varPayload.actual;

//Clear msg buffer
msg.payload = {};

//Set dummy idx number here:
msg.payload.idx = 12;
msg.payload.nvalue=0;
msg.payload.svalue = (""+vartemp+"");
return msg;

I've also created a couple of flows for the bed and extruder temperature: I'll see if I can export them and add them to the next post

[dp106]

Hopefully this is an export of the temperature flows:

[{"id":"3aea8e93.309a72","type":"mqtt in","z":"1763ab9b.39ab34","name":"Extruder Temp","topic":"octoprint/temperature/tool0","qos":"2","broker":"9ccc9e2b.1b109","x":160,"y":207,"wires":[["3ec16cec.0e06c4"]]},{"id":"83806805.370eb8","type":"mqtt out","z":"1763ab9b.39ab34","name":"","topic":"domoticz/in","qos":"","retain":"","broker":"9ccc9e2b.1b109","x":579,"y":206,"wires":[]},{"id":"3ec16cec.0e06c4","type":"function","z":"1763ab9b.39ab34","name":"Format Message","func":"var varPayload = JSON.parse(msg.payload);\nvar vartemp = varPayload.actual;\n\n//Clear msg buffer\nmsg.payload = {};\n\n//Set dummy idx number here:\n//var newMsg = {payload: {}};\n//var newMsg = {};\nmsg.payload.idx = 12;\nmsg.payload.nvalue=0;\nmsg.payload.svalue = (\"\"+vartemp+\"\");\nreturn msg;","outputs":1,"noerr":0,"x":369,"y":206,"wires":[["83806805.370eb8","7c4f10ea.34908"]]},{"id":"7c4f10ea.34908","type":"debug","z":"1763ab9b.39ab34","name":"","active":false,"console":"false","complete":"true","x":545,"y":304,"wires":[]},{"id":"db32e719.bf2618","type":"mqtt out","z":"1763ab9b.39ab34","name":"","topic":"domoticz/in","qos":"","retain":"","broker":"9ccc9e2b.1b109","x":580,"y":368,"wires":[]},{"id":"592e0035.0d7a7","type":"mqtt in","z":"1763ab9b.39ab34","name":"Bed Temp","topic":"octoprint/temperature/bed","qos":"2","broker":"9ccc9e2b.1b109","x":132,"y":367,"wires":[["587c7b23.5c0954"]]},{"id":"587c7b23.5c0954","type":"function","z":"1763ab9b.39ab34","name":"Format Message","func":"var varPayload = JSON.parse(msg.payload);\nvar vartemp = varPayload.actual;\n\n//Clear msg buffer\nmsg.payload = {};\n\n//Set dummy idx number here:\n//var newMsg = {payload: {}};\n//var newMsg = {};\nmsg.payload.idx = 13;\nmsg.payload.nvalue=0;\nmsg.payload.svalue = (\"\"+vartemp+\"\");\nreturn msg;","outputs":1,"noerr":0,"x":328,"y":368,"wires":[["db32e719.bf2618","c28cf0cc.7cc4d"]]},{"id":"c28cf0cc.7cc4d","type":"debug","z":"1763ab9b.39ab34","name":"","active":false,"console":"false","complete":"true","x":557,"y":459,"wires":[]},{"id":"9ccc9e2b.1b109","type":"mqtt-broker","z":"","broker":"localhost","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"willTopic":"","willQos":"0","willPayload":"","birthTopic":"","birthQos":"0","birthPayload":""}]

[bjacobse]

@ dp106
you are welcome, glad you could use it for your own purpose and improve it
I wasn't aware that the message was a JSON string, your improvement looks quite good

[bjacobse]

And then I have created this LUA script, that will switch on a lamp when 99% done.
First create a user variable: 3D printer boolean and make this an integer

3d_printer_boolean_variable.png (42.9 KiB) Viewed 10613 times

then copy this script as lua, like this:

3D_print_lua.png (19 KiB) Viewed 10613 times

Code: Select all

-- created by [email protected] 2018
commandArray = {}

-- loop through all the devices
for deviceName,deviceValue in pairs(otherdevices) do
    if ((deviceName=='3D Printer') and (uservariables["3D printer boolean"] == 0)) then
        if otherdevices_svalues['3D Printer'] == "99%" then
            --uservariables["3D printer boolean"] = 1;
            commandArray['Variable:3D printer boolean']='1'
            print ("3D Printer event fired");
            commandArray['Kitchen HK Lamp'] = "On"
        end
    end
end
if otherdevices_svalues['3D Printer'] ~= "99%" then
            --uservariables["3D printer boolean"] = 0;
            commandArray['Variable:3D printer boolean']='0'
end

return commandArray

[SHadley1138]

looks like you have octoprint working with mqtt and domoticz. im really struggling. in the mqtt settings, what are the 'Topics'? do i leave them blank, or use the defaults?

then on domoticz, ive go mqtt client installed.

im looking for a text sensor, that shows status messages from octoprint, but i can't see how i create that relationship

any help would be appreciated

[matzeb74]

I Struggle here:

when node-red is working, check your server:1880
then CTRL-i and insert the below text, as this will setup your flow, my idx:

What exactly should i do?

[bjacobse]

I Struggle here:

when node-red is working, check your server:1880
then CTRL-i and insert the below text, as this will setup your flow, my idx:

What exactly should i do?

Sorry for my late reply - I am unsure where you need help?

Can you confirm that node-red is working? it shall be online and you can connect to it on port 1880?
https://www.domoticz.com/wiki/MQTT

did you follow this?
http://www.domoticz.com/forum/viewtopic ... nt#p162935

[AimoPaukku]

https://plugins.octoprint.org/plugins/domoticz/

[DAVIZINHO]

hello.
and how it works. I see the plugin in octoprint but i dont know how to configure

Its necesary to create virtual switches? how many?

[bjacobse]

hello.
and how it works. I see the plugin in octoprint but i dont know how to configure

Its necesary to create virtual switches? how many?

I don't use the octoprint plugin, it's not needed if you carefully follow the guide in the below link
you need to create 1 virtual switch, note it's s text switch,
viewtopic.php?f=21&t=14021&p=172263&hil ... nt#p162935

[DAVIZINHO]

hello.
and how it works. I see the plugin in octoprint but i dont know how to configure

Its necesary to create virtual switches? how many?

I don't use the octoprint plugin, it's not needed if you carefully follow the guide in the below link
you need to create 1 virtual switch, note it's s text switch,
viewtopic.php?f=21&t=14021&p=172263&hil ... nt#p162935

i dont use MQQT in domoticz, maybe this will be the moment to configure it.
I think with the octoprint plugin it will work

[emme]

I either did not use MQTT.....
now I cannot live without!

[bjacobse]

I can only recommend MQTT, I also use it for my ESP8266 Heatpump IR controller, that also reports temperature
and if you gets MQTT to be working, then it's fairly easy to use my guide to get Octoprint print percentage to Domoticz