Loxone lightning block with Shelly RGBW2 via MQTT

[Herman Nåheim]

Hi all.

I'm running some Shelly devices via MQTT on Loxberry. Currently, I'm using on/off command via "Virtual outputs" from Loxone to Loxberry/MQTT.

I would like to have the shelly device as a dimmer in the Loxone lighting controller. How can this be achieved?

Current set-up:

 Using the "switch" type now.

Shelly API documentation

Currently using:

 shellies/shellyrgbw2-<deviceid>/white/<n>/command on

 shellies/shellyrgbw2-<deviceid>/white/<n>/command off

But it seems like I can use something like:

shellies/shellyrgbw2-<deviceid>/white/<n>/set brightness 100

I have limited experience with MQTT and Loxberry. But the on/off commands are very basic. How can I implement this as dimmer?

I believe that my problem can be solved and that I have all the tools needed to do so, but I'm having a hard time connecting all the dots.

Best regards

Herman

[Duncan]

why not just go direct to the shellys instead of via mqtt/loxberry?

[Herman Nåheim]

Hi Duncan.

The whole point is integrating the shelly devices more or less seamlessly into Loxone. I'm aware that this also can be done directly via Shelly's integrated http server. I choose to use MQTT since it was better documented for the devices I'm using, and I have not faced any problems so far. Now I'm trying to expand the use of the RGBW2 which I have installed (Now running at constant brightness % and being turned on and off from Loxone)

If you know how to solve the issue I'm having (described in my post) via Shelly's integrated http server, please elaborate. 

Herman

[Duncan]

the direct integration of shelly is via virtual outs so isnt that diffent to mqtt i dont think - im sure either way would work but ive only done it directly

for direct integration of rgbw2:

set up the shelly with a fixed ip address

create a loxone virtual output with the IP address

create 5 x virtual output commands for RGBW - turn off use as digital output

there are 4 rgbw channels and the gain needs to be set at 100 to ensure you get full brightness at 100% otherwise the default 0 means you wont see any light output

each one has the command for on:  

/color/0?blue=<v>

/color/0?gain=<v>

/color/0?green=<v>

/color/0?red=<v>

/color/0?white=<v>

i attach the gain channel to a constant set to 100 and then leave alone

to split the combined output of a lighting controller you can either use a formula block (somewhere on the internet/forums) or else a RGB lighting controller block which i found much easier

you will need to use the correction values of the output commands because the input is either 0-100 from the light block/formula or 0-10 for the rgb lighting controller but the shelly is expecting 0-255

i also use the repeat function of the virtual output to overcome any risk of the wifi messages not getting through but this is optional

hope that helps

[Herman Nåheim]

Hi Duncan. Thanks for the information. I'm only using the RGBW2 in "white mode" and only using one channel, this simplifies some.

The Config set-up looked quite complicated. It seems like AQ3-AQ6 is used to control 1x RGBW2 via rbg controller, multiply and formula blocks. What is the AQ outputs of the lightning controller set- as? Switch, dimmer 0-100, dimmer 0-10V, dimmer 1-10V, RGB lumitech or smart actuator?

My only goal is to turn the 1x channel I'm using on the RGBW2 on/off (I'm currently able to do so) and adjust the brightness/dimming from 0-100% through Loxone.

BR

[Duncan]

sorry i didnt pick up you were using white mode, so ignore the rest of my config - thats overly complicated due to a global rgb colour changing program (disco mode) that overrides local lighting controllers when enabled

you would simply use 1 loxone lighting controller output eg AQ1 to connect to a single VO for the rgbw2 controller, no need to decode loxones compound rgb output to separate colours

looking at the shelly api for white mode , it doesnt have the gain requirements, just the brightness of the 0-3 channels, ive not tried it but looks like:

/white/0?brightness=<v>

/white/1?brightness=<v>

etc

try this in a browser eg http://shelly_ip/white/0?brightness=50 to confirm before putting in your loxone config

the shelly needs to be 'on' for the brightness changes to take effect

i think you can combine the on/off with brightness:

/white/0?turn=on&brightness=<v>

[Herman]

Hi Duncan, thanks for the reply.

I have tried the commands in the web browser and it seems to work.

However, I have tried to integrate this into Loxone and have not be able to do so.

Current set-up:

One command for switching on and off (workes fine) and one command to adjust brightness if brightness is over 1%.

From API documentations:

I can't seem to get the brightness adjustment to work.

Herman

[Duncan]

https://www.loxforum.com/forum/german/software-konfiguration-programm-und-visualisierung/261694-shelly-dimmer-per-mqtt

i think this solved it

[Herman]

Thanks again Duncan. This solved the problem, and a learned alot!

For anyone else, this is how it was solved (in English):

Set the output from dimmer block to status block that communicates with MQTT/Shelly.

[Duncan]

you can do the same directly without mqtt if desired, then you dont need the status block or the mqtt server

for each shelly dimmer you need to create a virtual output with the ip address and then create 2 virtual output commands

1st  to turn on and set the dimming level (analog)

2nd to turn off the dimmer when set to 0, as shelly ignores commands to dim to 0 (digital)

both virtual output commands are connected to the same output of the lighting controller: