This post details my final assembly of the various pieces.
This Challenge has been so large, I've created a book about it. 
Movement Sensor
One of the intentions of eLDERmon was that this can be easily fitted into an existing house.
Nothing needs to be permanent, and this posed a small problem with the movement sensors.
How do you attach the box, without leaving a mark, or running the risk of if falling down because the sticky tape let go.?
I decided that mine needed power, so they had to be near an outlet, and the solution was to fix it to the outlet.
I cut some soft plastic so that I could loosen the socket, and slip it behind the front face.
Double sided tape holds it onto the plastic (It is straight but the parallax error makes it look twisted)
Since it was plastic, there was no risk of touching anything, and it was thin enough not to expose any gaps.
A couple of pieces of double sided tape hold the movement sensor box onto the plastic and a little pressure downwards meant it was firmly held in place.
Don't forget to clean the plastic surfaces with iso-alcohol before applying the tape. 
When it's finished with, its a simple matter to remove, and there are no marks.
'Granny' will be happy.
The Book
This Challenge has been so large, I've created a book
However its not just any book, it contains magic.
Since my application is not for use here, its not really suitable to have something with wires hanging out.
What better than to hide it in something that could easily sit on the shelf out of the way, and not be obvious.
I also decided that it would be a good idea if 'Granny' could charge her phone, tablet or eReader, and decided to fit Wireless Charging.
Just to prove that the piece on the left side is indeed a wireless charging transmitter, here's what happens when you stick a device on the surface
The Nexus 7 from the 'Beyond the Phone' challenge which features Wireless Charging.
So that granny can be sure its working, I had to drill two small holes, so the LEDs could be seen.
The yellow light is always ON, which gives some clues that power is applied to 'The Book'.
The other end contains the power coming in, and the 868MHz antenna, but the glue really needs more drying before the tape comes off holding it onto 'The Book'.
(I'll post a photo later)
Whats Left
I've had to complete this because I'm back on shift and have some other prior commitments for this week.
I do need to look at my errant Bedroom Temperature sensor, as it works fine, then goes into some weird thing where the temperature is 38.3 degs.
I need to sort out an EEP that will allow the illumination figure to be sent without a wake up. I'm reluctant to use a non EnOcean sensor just to overcome this.
My Hot Water temperature sender sketch needs adjusting. It works but it could be more intelligent and save on RF 'noise' while still delivering the information.
Most of the tasks left are tweaking the persistence to reduce what isn't needed, and some fine tuning, but the concept is complete.
Considering the relatively short time frame, the other commitments I had during the Challenge, and that this is an 'after hours' project, some fine tuning is not unreasonable.
Writing up my summary. How do you compress 12 weeks of this into something that sums it up.
Enjoyable, Challenging, Frustrating, Enlightening, Rewarding, Insightful, Cooperative, and Fun are some words, but they just describe the process we've been through.
I'll need to work on it.
Mark
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