Hack an Amazon Dash: just register the thing, don't attach it to any product, wire it anywhere and listen to the ARP probes thatwill pop everytime the thing is pushed and connects to your WiFi network. It's a nice, clean, small, wireless, silly battery-powered no-nonsense overengineered solution.
2018-03-24 22:32 GMT+01:00 Hess THR <hessnovth...@mail.com>: > Hello, > > I have an OpenBSD amd64 notebook running 24h next to a door, ~50cm. > > Can you please recommend any hardware, that I could plug in to the > notebook and though I could send a warning mail when the door was moved > (open/closed). > > I can do the scripting part, but I just don't know where to start for > hardwares that sense that the door was moved. > > Many, many thanks. > >
