i am working on a project blind stick using zigbee communication
each time not receiving same rssi
i used this module
and i am using arduino nano because its size is small
That’s actually completely normal.
RSSI may change with every transmission because the conditions you’re receiving are constantly changing as well. There is really no way around that except for operating both devices inside a Faraday cage and even then, you may see some small variance in RSSI.