Sensative Strips are thin devices that you can install on a door or window to detect the open or closed state. They’re small, they’re functional, and amazingly enough, they speak Z-Wave. Install one on the frame of your door, and you have a nice little sensor without having to run wires.

I got mine from a seller on Amazon.

They’re also fiddly little things, at least when pairing with OpenHAB…

I’m mainly looking at OpenHAB for support of the advanced functionality in the HomeSeer HS-WD100+ in-wall dimmers. Specifically, they have multi-tap functionality supporting four commands in addition to the generic On/Off function. For example, my pool light switch is out by the shed; wouldn’t be nice if I could just double-tap the switch at the back door instead?

Here’s one way of making it work in OpenHAB 2…

TUN/TAP Demystified

May 21, 2016

Have you ever wondered what the Linux TUN/TAP driver is for? Wonder no more! After spending most of last weekend tweaking the NuttX Simulator network support, I now have a pretty good idea of what TUN/TAP is, what it’s useful for, and how it works.

Might as well pass it on, right?