When the Romande-Energie Group connected my house to their power-grid last year, they installed a “smart” residential credit-meter before my switchboard. As I also produce electricity with my solar-panels, they installed a digital one, that is able to measure both the energy that I consume and the one that I produce. Those meters are called smart because they’re kind of IOT appliances that can be remotely queried at some point. The model that I own is a Landis+Gyr E230.
the new version of my website, I moved from a dynamic Wordpress site to a static one. The posts are written in Markdown and I’m using Hugo for the compilation. Still some glitches to fix but so far it’s not that bad.
Cool picture from my last vacations in Sardegna, the beach is called Cala Luna and I took it from one of its cave, facing the Mediterranean Sea. this work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License
I started to play with Z-Wave at home lately. I found an inexpensive Raspberry Pi Hat for that purpose which is simply called the RaZberry. It’s compatible with all the raspi models so far and it comes with the complete Z-Wave stack and exposes a WebUI + APIs to the user. The main issue that I encountered was the range of the antenna, I had a lots of problems to reach devices that were few meters away from the controller just separated by a thin wall, and I hadn’t had any other devices working in that frequency range that could mess with it.
Ok we only have 5 minutes so: Host A: 10.0.0.1/24 Host B: 10.0.1.1/24 Those hosts are behind multiple routers but the are reachable, and there is no firewall between them. We will create a VXLAN tunnel between those hosts to put them on the same network segment, like if we had a dedicated VLAN connecting the hosts. host A: ip link add vtep100 type vxlan id 100 dev br100 local 10.