Thanks. Found it.

@alowhum There are some changes in V_TEXT type in latest builds. Read this: https://forum.mysensors.org/topic/9340/domoticz-v_text-sensor-now-bidirectional

@mfalkvidd Thanks mfalkvidd...the oldest mistake one can make and I'm still falling to it regularly. Here are the links: Link to the library: https://github.com/kitesurfer1404/WS2812FX/issues/83 Link to the problem workaround: https://github.com/kitesurfer1404/WS2812FX

@sushukka I wrote my solution for this problem as I also have a lock-node to secure :) Look, maybe you will find it useful. https://forum.mysensors.org/topic/9204/secure-node-encrypted-communication-aes-128

Hehe, took couple of hours but now have four led sequences running "in parallel" on Wemos D1 Mini. Three fades with random intervals and one flickering led with random intervals imitating noise in electric net. Also couple of static leds running on same board. Seems that MySensors have no problem to get its slice of the cake so I'm happy now. Btw, these leds are implemented in this: http://www.billingboats.com/da/22/2/boats/advanced-beginner/P-bb474-cux-87.html For a perfectionist took terrible amount of time to build, but looks pretty awesome now. :)

You could still try a PA LNA module with ipx antenna and bring antenna outside of the box, metal should be flexible enough to let the cable get out on one side. And no need to activate pa/lna mode so it can live longer on battery.

@Sushukka thanks for sharing!

Update: Managed to get my NFR24 radios work with Sensebender micro with greatly oversized 100uF normal electrolytic capacitor. Been in my freezer (appr. -20C) now for three days and still works fine. 2xAA batteries powering the node. Not sure where the problem is, maybe just the capacitor size because of diminishing capacitance curve in freezing temperatures. Have still some spare Nanos and Pros to spend, but gradually moving to ESP8266 based sensor network. They have proven to be very reliable even under -20 degrees celsius.

@mfalkvidd Thanks again. :) Commented the issue too. Hopefully they get that fixed someday soon as it is quite a nasty issue for ESP8266 users.

Nope, we don't screw with any pin mapping. https://github.com/esp8266/Arduino/blob/master/variants/d1_mini/pins_arduino.h#L40-L50