Hallo, Here I am again. My question is still the same: Can one use an ESP8266 instead of an arduino plus radio? Not via wifi but exactly as when as I use an arduino with some radio. I know, that all the experts until now wrote, as a gateaway: yes. But you need a present WLan then. For a rf24 you need no WLan. Did anybody succeed in programming the ESP8266 in the way, that it behaves like an arduino with rf24 connected? So you could save a lot of time soldering and searching mistakes.