Hi, new user here.
I have a small suggestion for this webpage:
Change the line "This guide describes in detail how you connect the radio to your ARDUINO." to include the ESP8266 board.
I was looking for the wireing for a ESP8266 MQTT-Gateway, and it was not clear to me, with ARDUINO you mean all the supported boards.
That said. Very nice and clear description, on how to setup both of the radios with both of the boards. cudos