I’m farely new to the world of openHAB and home automation. I am also not a native english speaker so please forgive me some spealing mistakes here and there
At the moment I’m planning to use a Raspberry Pi in conjunction with openHAB as a future home automation system. One big requieremt is to be able to control basic feature of the house, such as lights or roller blinds, even without a working a automation system.
I want the systems to work side by side (automation <—> standard installation) but why do I plan it in this way ?
- Easy maintenance for people that are not into the world of openHAB (“normal” electrican).
- Don’t lose control of the house in case of a broken automation system.
- Don’t want to commmit to any expensive BUS (e.g. KNX) system at which each actor or sensor cost 5 times as much as standard “stupid” control costs.
Unfortuanetly I just realized that I can’t upload a file since I’m a new user, thus I try to explain the setup as detailed as possible based on a single room setup with a single consumer.
Standard latching switch for house installation.
openHAB server placed in the switchboard with GPIO.Bindings ( 1 x Output, 1 x Input).
- Self designed PCB at which a state controlled bistable D-Flip-Flop is mounted. PCB also placed in the switching board.
- At the set input of the Flip-Flop, the output of the latching switch from the room is connected parallel to the GPIO output of the Raspi.
- Output of the Flip-Flop is then connected to the input of the Raspi, such that the current state can be monitored.
- Solid state relay:
- The control input is connected to the output of the Flip-Flop PCB.
- The output directly drives the lamp in the room connected to 230V (AC) powerline.
I hope you get the basic idea?!
If possible, I’ll upload a scheme as soon as possible. So at that point I justed wanted to get any feedback from the community about this setup. All kind of comments are welcome and appreciated