I found a solution to my problem. Just i had to read a little more.
Node-red is working fine with ESPEasy as firmware of ESP8266-12 over WIFI.
Then i added a Bridge using a ESP8266 Gateway.
I downloaded MySensors 2.1.0 library and built each new sketchs.
I had to learn about how to program them using examples. It was easy.
Then add node-red mysensor module to RPi and I wrote the flows. Easy too.
My new system is mixing ESPEasy and RF24 with MySensors and is working under Node-Red.