18 wireless, 4 wired

I had to enlarge my iot vlan from a /24 to a /22 - at any time anywhere between 60 and 140 devices - lots are only there when the room is active so powered up.

Many many lightbulbs. Will be a lot more after I get the ones from the 2 for $5 deal on 1day installed in things.

Including all the various tablets, smartphones, watches TV's "smart devices" and computers dotted about the house, at any given time we would have from 5 to 45 devices connected. At a guess.  

30 'ish connected devices excluding infrastructure equipment, but more of course if visiting and residential guests are with us with their iPhones, iPads, laptops etc.

3. computer, phone and tempest weather station

Currently... 

1x 802.3 (desktop)

4x 802.11n (my personal laptop, HTPC, 2x cameras)

2x 802.11ac (wife's macbook, my work laptop)

2x 802.11ax (iPhones)