I'm using the wifi_station_get_rssi() function to query the current RSSI on an ESP in station mode. It is connected to another ESP8266 in AP mode. When changing the strength of the signal physically (e.g. by putting my hand around the board) I see the RSSI value reacting, but with a considerable delay. Considerable means something like 1 second or so. The response to the changed signal strength does not happen in "realtime". Is there any specific update interval to RSSI value?
I don't let the AP and the station exchange any data. That given, is there any reoccuring, but rather slow, communication between station and AP that gives the station the RSSI? If so would a real data transfer between AP and station result into a RSSI update on a shorter interval?
Thanks a lot for any hint here.
-Marcus