Talkiet:
KShips:
Awesome build, look forward to hearing more as it progresses.
How are you setting up Z-Wave? With standard lighting circuit and zwave controllers behind each light switch?
If so, any reason you have not gone with star wiring so each light having it's own cable back to switchboard where relays are located, bus wiring to light switches (I'm thinking KNX or standard relays with controllers etc at switchboard for easy management)?
Great question.
I would have preferred low voltage star wiring, but the electrical contractor my builder uses either didn't know what it was or was playing dumb and didn't want to do anything but the standard stupid transformer on every light/circuit... It wasn't worth the hassle to fight it and the builders weren't prepared to use an alternate electrical contractor.
In any case I have trialled the system in my current home with just a couple of Z-wave controllers behind light switches and plug in sockets (Alexa, turn on the electric blanket) and it works fine, so I specced open backed light switch and power outlet boxes so there's heaps of room behind them for the zwave switches.
I'm using openhab on a raspberry Pi with a USB zwave controller. Based on how well it all works at the moment I don't see any reason to do anything differently in the new build except perhaps evaluate Google Home as the voice interface.
Cheers - N
That's good to know, when we build I will make sure to run this stuff past building company before get to far down track. I hope to be able to self manage electrical side using electrician contacts who are into this sort of thing.
I moved to openhab last week and so far looks really good. I'm also of strong opinion that system needs hosted in the house, not running on cloud system so that I'm not reliant on internet connection (ideally only accessible locally or via VPN) etc.
I was reading about failover options with openhab and the common issue people were talking about was how to handle Z-Wave controller failure as it stores the device ID's. There was mention of the new version of (I think) the USB controller has some sort of backup function.
Where did you source Z-Wave gear from? About to order Sonoff switch to test that out for shed lighting.