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That sounds interesting. Do you get any false triggering from the motion sensors ? Are they as sensitive as normal security pir ? The flexibility and communication options are definite plus points, on balance, do you feel this system as good as / better than the conventional system you had...

I have a humax FVP5000t freeview recorder. This has to be left powered up for the tv loop through feed to work to feed the tv signal. I'd prefer to let it go into full standby mode, so to avoid losing the normal tv signal feed, is there any reason why I shouldn't use a good quality 2 way coax...

Thanks for the extra very detailed info, you must be expert in programming! Very impressive. I was thinking I might have a try at replicating your boiler control, but, possibly using a second roomstat as well, as a temperature control, so that the remote switching can override the present stat...

These are battery : https://www.maplin.co.uk/p/netgear-arlo-720p-1-camera-cctv-kit-a41th

"The boiler is just another link off my main home automation site running off a Raspberry Pi........" Interesting project. So is the room stat left set at a specific temperature all the time so the remote switching acts as the on/off interface? It'd be really interesting if you say a bit...

http://www.audon.co.uk/gsm_alarm/gd04.html?gclid=Cj0KCQiAlpDQBRDmARIsAAW6-DPqjKDhMYu_LjPsV32nemRiqULdM4P2V8Pne6nX3-9zttagXKRodqIaAinzEALw_wcB This, or similar, might work for what you want.

Thanks ericmark + cjard for the responses. The Timeguard unit outputs a switched mains 240v. My heating system is a Micron 60FF boiler, fully pumped system with 3 way valve, hot water cylinder and radiator circuit. All rads have thermostatic valves except the hall, landing, and bathroom. There...

Thanks - I wondered if you might elaborate on what are the ' many reasons ' ... ?

Thanks Bernard, point taken. There are thermostatic valves on all rads except hall and bathroom, so, temperature is controlled, but, I realise pipework would be heated constantly with no interlock. The intention was just for short periods of use, ( an hour or so ) not long term. I'm not really...

I am thinking of getting this: http://www.timeguard.com/products/time/immersion-and-general-purpose-timeswitches/wi-fi-controlled-fused-spur which is a fused spur unit, but with a wifi control which can be operated from an android phone. I wanted to be able to use it to switch the central...

Thanks for that Bernard,yes,very interesting; obviously it was going to be a very comprehensive installation. I think any purpose built self install of this type is fascinating, to see how a problem was approached and solved in an individual way. I wonder what you actually used for heating...

It would be very interesting Bernard if you could explain what your original plan was for the heating control, and what you eventually ended up doing. (Just interested in the home automation aspect as you evidently have experience in electronics, from your posts.)

http://www.ebay.co.uk/itm/scantronic-9448-/282239968713?hash=item41b6d025c9:g:StAAAOSwKOJYF5aZ

It may be flying insect activity causing triggering, or wind blowing garden plants about. You could try installing a second pir, some distance away from the present one, viewing the same general area but from a different angle. Wired in series, so both need to trigger to operate the light.

Thanks for that eightytwo. My aim is to have some visible, ( but discreet), cctv prescence outside the house, and to obtain a reasonable image, though I appreciate obtaining detail is more difficult. (There has been one random incident of damage to a wing mirror.) The street light is...

I hoped for some expert advice on cctv: I want to install a good quality camera at the front of the house, with the intention of it viewing the front roadway and two parked cars, but including any area of the house frontage that comes into the path. The road lies beyond a narrow garden, which...

Looking at the photo your unit has 4 relays. According to the specifications for this unit ( found on eBay) there are 3 modes, latch, auto latch, and non latch. It looks like latch is the one you want. You can derive a 12v power from the pir supply. It looks like each relay has 3 contacts (ie...

Is it possible to glue a thin piece of plastic or similar on the top of the pir to form a 'roof' to keep rain off. It wouldn't cover the lens, so not affect the function, but it would extend a short distance over the top to keep it dry. Also, taping over the sensor may have worsened the problem...

How about a second pir some few metres away, covering the same area, wired in series with the one fitted to the lamp ? Both would have to close the circuit for the light and bell to operate, offering greater stability. The moths would hopefully stay around the detector at the lamp unit and leave...

http://www.maplin.co.uk/45w-power-strobe-25144 http://www.maplin.co.uk/mini-strobe-with-coloured-filters-28569 Might do what you want if suitably housed..?