Visual RSSI of wifi relay switch on the dashboard


I am very new to Node Red! I wanted to display the RSSI of my wifi relay switch as a meter in my dashboard but so far unable to as I could not get to the right topic i believe. Would appreciate if anyone can help me with the topic and

If we knew which Wifi switch you are using it might help to find a solution!

Also tell us which part is causing the problem, getting the RSSI value into node-red or displaying it.