The one chip U4 is high accurancy temperature and humidity sensor. I think its better temperature sensor than the internal temperature sensor of BMP180.

Try persistence: false

If we use pin 22 for CE and pin 24 for CS it is not necessery to declare as you said. But if we want to use other pins we need to declare. I havent try though with other pins.

Because in 1.5-2 years many things are changing. Did you try my config?

2 years ago were you using version 2.3.1 ?

As kebibg said you must also configure the pins for CE and CS. The configure i used was :

--my-transport=rf24 --my-rf24-pa-level=RF24_PA_LOW --my-gateway=serial --my-serial-is-pty --my-serial-port=/dev/ttyUSB020 --my-rf24-ce-pin=22 --my-rf24-cs-pin=24 --my-rf24-irq-pin=15 --my-leds-err-pin=12 --my-leds-rx-pin=16 --my-leds-tx-pin=18

Also you must connect MISO to pin 21, Mosi to pin 19 and CLK to pin 23 on raspberry

I have problem to verify the sketch of Sonoff and i tried also ESP8266 gateway and also i cant verify. Arduino IDE returns the error:

Arduino: 1.8.7 (Windows Store 1.8.15.0) (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, 4M (1M SPIFFS), v2 Higher Bandwidth, Disabled, None, Only Sketch, 115200" In file included from \Arduino\libraries\MySensors/MySensors.h:405:0, from \Arduino\libraries\MySensors\examples\GatewayESP8266\GatewayESP8266.ino:132: \Arduino\libraries\MySensors/hal/architecture/ESP8266/MyMainESP8266.cpp:57:53: error: declaration of C function 'void ets_update_cpu_frequency(int)' conflicts with extern "C" void ets_update_cpu_frequency(int freqmhz); ^ In file included from \ArduinoData\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/pgmspace.h:10:0, from \ArduinoData\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/Arduino.h:256, from sketch\GatewayESP8266.ino.cpp:1: \ArduinoData\packages\esp8266\hardware\esp8266\2.4.2/tools/sdk/include/ets_sys.h:218:6: error: previous declaration 'void ets_update_cpu_frequency(uint32_t)' here void ets_update_cpu_frequency(uint32_t ticks_per_us);

What its wrong?

Ok i will give it a try and i will tell you. Thanks

I think i am little confused. I just want to control my wifi Sonoff switch with my homeassistant. I saw these instructions https://www.mysensors.org/build/sonoff
where i can reprogramm the Sonoff ESP but i dont understand how it will communicate with homeassistant. Do i need also a separate wifi gateway or the Sonoff switch will be able to communicate with my controller through my LAN?
Thank you for your time to answer me.

Yes, but i already have made a serial gateway on raspberry with these instructions. Can i have serial and ethernet gateway at the same time?