50nl ATo hero-ing a fish

Villian is a passive fish 36/14 1.2agg 16 hands
I view this limp/raise as mostly strong but there is a small chance he is clicking buttons.
Not sure if this villian will bet 2 streets with random crap we beat.

Hand converted with online PokerStrategy.com hand converter:

Play hand

$0.25/$0.5 No-Limit Hold'em (6 handed)

Known players:
[tg]BB (Hero)$68.18:///////;MP2$56.36:///////;MP3$32.61:///////;CO$56.06:///////;BU$50.00:///////;SB$23.36:///////;[/tg]

Preflop: Hero is BB with T:c, A:s.
4 folds, SB calls $0.25, Hero raises to $1.50, SB raises to $2.50, Hero calls $1.00.

Flop: ($5) 7:s, 6:d, 2:d (2 players)
SB checks, Hero checks.

Turn: ($5) 2:s (2 players)
SB bets $2.50, Hero calls $2.50.

River: ($10) 6:h (2 players)
SB bets $4.50, Hero calls $4.50.

Final Pot: $19.