@sergio-rius A little late, sorry, but that depends on the mosfets you are actually using. I am driving ~5m strips of white leds with most of my controllers and they don't even really get hot.

There is also a big(ish) update from my side concerning this project: I have designed, 3d printed and tested my own case for the controllers and they work great. I have just added the stl files and some images to the project page!!
For now this project is done from my side. The controllers have been working great for the past 2 years but due to the "huge" (~1s) delay with my Mysensors network (with signing and openhab on a raspi) when switching the leds I am currently testing some MQTT and wifi based RGBWW controller boards as an alternative.

I only had Home Assistant installed for some days (did not really like it at the time) so I can't tell you that it works 100% but it did back then. You have to add some strange additional messages but I tried to integrate that into my code.
I am using my RGBW controllers with openhab 2 in one location and with domoticz in another. As it is controlled by MySensors it works (and looks) pretty much like any other mysensors node. Both installations run on 2.2. Hope this helps

I never tried that but as far as I know you have to tell Mysensors to use a different kind of radio by adding a define like:

#define MY_RADIO_RFM69

Just do a quick search on this forum though

Well great to hear that you solved the problem. There are version 2.1 and 2.2 of mysensors as of now that can be used too so maybe update again?

Do you still have an older version of Mysensors installed? Thats the only time I had such behaviour

@TimO I finally got around to testing my pureWhite RGBW code and at least for me its working like it should be. I saw you already merged this so I guess others can use it too very soon.
What is still not working is the acknowledgment feature. I have one node that only gets about 90% of the messages without error, so I tried activating it there and on some other nodes too for testing. Result: success rate is down to ~50% for each node and I get messages about some acknowledgment on the console when no message has even been sent (nothing about a message from mysensors on the console and no rx/tx leds on the gateway). When I tested this some months ago I also saw no message at the client so I am pretty sure none gets send.
So I guess this issue is still unresolved I have no clue why on a first glance but if I can help just send me a message.

Sounds nice! I wish you the best of luck with your project(s) and keep us updated!
I might do some project report like this too soon, so I will follow yours

You can also use the security features of mysensors so that your node doesn't connect to your neighbors gateway even if it uses the same channel. Using a different channel would be easier though i guess.

Did anyone try the Anet A8? I am currently thinking about buying one. It would be my first 3D printer and I do not want to spend more than ~150€ (at least initially). It seems to be a clone of the Prusa i3 and quite capable if add some cheap/self printed parts and invest some time. I don't have the time/knowledge to build a printer on my own from scratch but I am pretty sure that I can those upgrades.

Or are there any alternatives in that price range that you guys can recommend? Main idea is to print cases for my electronics projects and some small other stuff from time to time.