Probably not much use to you, it just logs in to the admin web pages on my TPLink router and scrapes the html of the connected devices list with a little bit of Perl and regexes. Full of the usual PoC (I wonder if I can make this work?” hard coded web admin and email passwords and everything, and it’s been just working like that for about 5 years now.

(yeah yeah, I know, you can’t parse html with regexes. For a super tightly controlled web page like this one it works just fine.)