Managed to install this nice sensor in my home. It is controlling the light in toilet (where sometimes you “stay” with little movements for longer time - not detected by typical PIR sensor) and at this point is connected only with OUT pin to ESP8266.
To connect to pins I used JST GH 1,25 mm 5 PIN connector:
Before mounting in final case (I used broken PIR sensor case) I taped it in the place where it will be, connected to laptop and tested/changed sensors ranges setting so it covers “no-moving” sitting person.
Then put into box, close it and start “live testing” period - ongoing…
While testing, it was also working connected with UART (Tx - GPIO01, Rx - GPIO03) but I decided that it seem too complex for this particular need. I was also concerned about load it generated for ESP. Once official ESPHome support will be available I may reconsider.