I love graphs. Just ask my wife. Any sort of metric I can get my hands on, I try to graph and display visually.
One of my favorite tools for graphing data is Cacti. As such, if it can be queried via SNMP, I want it on Cacti.
I have an HP MSM430 access point that I use in our home. It presents quite a bit of data via SNMP. I’ve developed some Cacti templates that can be used to graph average SNR for a station (a station is an SSID on an individual radio), as well as the number of users connected to a station.
Find it on github: https://github.com/shouptech/hp-msmAP-cacti