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The Trend stuff is ok, but it is both limited in functionality and you can't interface anything and everything to it. With my system I can. I only ever embarked on this journey because there is no one product that can do what my system can. It couldn't 8 years ago when I started, and it still...

Hi James, Thanks for the positive comments. Yes there are some light switches, but my intention is that in time they won't get used as the system gets better. At present the lights (and heating and other stuff) is controllable 3 ways, the main way being automatic, i.e the lights come on when...

I used to have the male half of one of these jury-rigged (bit of metal bent up with some self tappers to fix the connector on to the front bumper) on to the front of an old car I used to commute in. I left a small blower heater in the car wired to the plug and then on cold nights I'd plug the...

Ok, I found the code. #!/usr/bin/perl system( "logger 'HAL - dmx_prod_rebooted' "); $inc_up = 5 ; $inc_down = 5 ; $min_intensity = 70 ; while (true) { use Device::SerialPort ; my $port = Device::SerialPort->new("/dev/ttyAMA0") ; $port->baudrate(9600) ; $port->parity("none") ...

Ok, so the module is connected to these DMX dimmers (Bottom middle, black boxes) they are soundlab G018VA. I've got 5 with 4 channels on each, 20 channels in total. You can have up to 512, so I've room for expansion. I use the dmx channels to dim lights mainly (obviously) but as they are...

I use this module for the DMX control It's a Velleman DMX controller. I got it from Maplin maybe 8 years ago. It takes RS232 in and spits out DMX, you send a pair of values (hex encoded I think) out of the serial port and the module sends it over the DMX circuit. I'll see if I can find...

Thanks Galaxyguy, that's useful information, you clearly know your stuff. I'll bear that in mind if I ever try anything more advanced.

Hi, ultomoat is spot on, three of those boxes are powered RIOs, generally with another non-powered rio squeezed in there too. I've linked out the internal 16 channels so that I see all the traffic on the data bus. It works pretty well

Hi, Yeah I rewired with all this in mind. So all the lighting is wired radially back to the cabinets, as is each socket (there are about 100 of them) there's plenty of cat5e, coax, HDMI, alarm, audio etc... in the mix too. All in all about 5km of cable, lots of which I'm not using at the...

Hi, It stays pretty cool down there, well, not so much cool, but a pretty constant temperature, it's not been a problem so far. I don't have AC in there, but would probably consider a big extractor fan first.

That's some nice work Bernard!

Not a mansion! But a pir and smoke sensor in each room, plus a couple of outbuildings and various doors soon gets near the 96 limit of this panel!! I think I actually have maybe 10 zones free

Bob, Interfacing the galaxy is easy. Honeywell don't provide the spec, but it's easy to decide if you can do hex. Each zone is just a resistance meter, and the value in ohms is broadcast from each Rio for each zone every second. The rios have an ID, and that's it. Extra points if you can...

Hi Bob, Similar to me, I use 20 or so ds1820 sensors on the i2c bus of a pi. I had initial problems with how far you could communicate reliably, but other than that, plain sailing. I use Perl by choice and rather than use a module to read the senaors, I just read the files in /dev which works...

Good point Bernard, but for me, that would be 96 relays. Code isn't all bad! :-)

Hi Bob, I went for two boilers as I needed a fair few btu output and I also wanted resilience and reliability. I use the rasp pis and a bank of temp sensors on the thermal store to trigger the boilers. If the tank gets cold or the rate of heat change is high, I use both, otherwise I cycle...

Hi Bob, Yep the pumps are for the various heating zones, there are 4 floors, so a zone for each, then one for underfloor and the final one is a flat plate heatex for domestic hot water. No zone valves, I don't like them and with multiple pumps I can better control the flow for each zone, both by...

Hi Bob, yep those 4 raspberry pis drive everything, they do dmx for the lights and you'll notice a couple of external rs232 for serial comms, all the relays and inputs are via pokeys 56e and I use i2c for temperature sensing