- Devices can include eg Cameras in & out of house
Daylight & infra red for night, PIR Movement detectors,
Smoke heat & humidity detectors, Broken window & Open
door detectors; Thermostats, roller blinds ( Roll-laeden/
What's Not Covered:
- Gimmick Speech Assistants like Alexa & co. - I'm
averse to, don't need to be spied on, don't trust the
lack of security, don't want mis-understanding,
especially in a multi lingual environment, averse to
robots that speak German. .
- TV's connected to house net - I don't trust the lack
- Smart phones with random apps with cameras &
microphones spieing on you.
- I've no interest in fridges with bar code scanners
& cameras to recognise & quantify & re-order
size of a lump of cheese & half cucumber, there are
- House alarms can also be implemented, not just with PIR
movement detectors, but also with cameras added for pictures
of thieves to send to police, & also night vision
cameras; if by WLAN, then you no longer need to old fashioned
chisel away cable runs into the plaster & drilling
through walls back to the burglar alarm, re-plastering &
- Personal mobility alert system can be built in, eg
Elderly/ infirm, fall
detectors, via accelerometers in androidsmart watches etc.
- Many IOT
(Internet Of Things) devices are not encrypted. (esp.
cheap Chinese stuff) so eg a thief outside house can get on
your WLAN & see what cameras show inside.
- There are multiple communication protocols, : competing, non standard,
proprietary, non co-operating.
Don't get trapped ! Plenty of starter kits in shops will
trap you to buy more later from same manufacturer.
- You don't just want a product that talks to a smart phone
running a proprietary app that only talks to their
- Learn about protocols before you
buy, & ensure products support your chosen protocol.
- conradconnect .
com / en Conrad Connect
When you select your telecom supplier, ask if you can get a
rebate instead of a bundled router
if you supply your own router
Various things are easier to configure, and with more
flexibility for eg remote control for alarm call out &
monitoring if you choose one with extended functionality. eg
in Germany: Deutsche Telekom offers cheap connection first
year to tempt new customers, the rebate subsidises buying a
. The contract ties you for 2
years. Telekom offer a small range of their own routers
, or buy your own in a shop or on
- much wider choice of more functionality, usually at
some more cost
- buy from a physical local shop or on the web, new or
- Some 2nd hand routers are very
cheap, because they were bundled with Telekom contracts,
& seller then bought another one for more
Old Cameras & Smart Phones
Old cameras with USB interfaces can work as net cameras. eg
even a really cheap camera bought maybe 10 years back in
Tesco, credit card size, except for lens, for all of ten
pounds, no screen, just 1 button, but it works as a USB
camera / net cam.
Old Android phones can work as
cameras via wlan, though specific cams can be screwed to
walls easier. (I haven't thought through security encryption issues yet.)
FreeBSD - Operating System support
Markets & Vendors
- Outside camera:
- Inside IP Camera:
Web: 720P HD, 1280x720, Mobile remote, 2 way audio, WiFI,
Ind=fra Red Night vision, AP Hotspot, Plug & Play,
Motion Detection Alarm (email, phone push), Video
Recording, MicroSD Card (up to 128G Micro SD TF Card),
H.264, Snapshot, Remote: 355 Horizontal rotation, 120
vertical, SriCam, 5V USB power, 11 LEDs lighting round the
camera. Inc. hanging plate Instructions (paper) USB cable,
PSU (USB 2 pin continental)
Smart Water Meters
Smart Meters, Electricity Consumption, UK
- First generation are rubbish, don't work smart anymore if
you switch to a new supplier. Pushed by Government &
industry to a short nigh impossible deadline. Just refuse
them. They've been interviewed on BBC Radio [4?], approx
Oct/Nov 2018: the pusher was heavily evasive.
Power Strips Controlled By Ethernet
Apps For Smart Phones
FreeBSD etc Support - to be searched later
Thoughts Of The Future
David of Faraday 2022-04-01 mentioned what I heard as: Bosch
Ferien 5000 0W or OW 868.3 MHz, allows up to ~40 units for a
large building. Searching:
Aside from all the energy supply side generation options, the
other half is demand regulation. We'll want smart meters
linked to micro controllers to control individual devices,
& not just to On & Off. & very variable very
small time slice dynamic tariffs:
Eg when no wind & tidal & solar available, &
the football half time on TV is on & all turn on their
kettle in UK for tea coffee (but not in countries where they
fetch more beer) is worst time to keep topping up electric
car batteries, which should be feeding & selling back to
the grid at premium rates. Domestic hot water Immersion
heater tanks could heat to a lower temperature for half an
hour, not just hotter all night as now..
Kettles could boil slower at peak demand, (but difficult
as cheap devices, & control would cost significant extra
manufacturing cost & space on kettle).
In hot periods, if there's a few minutes of high demand,
the air cons & Bitcoin miners could stop or slow, &
domestic PC CPUs could run slow, but not lifts or equipment
in hospital, or plane runway light, or dam control gates or
most of all, nuke power stations that have powered off, but
still consume power for cooling.
On nights when no wind & tidal, houses & swimming
pools could warm a bit less, all automatically. Only the
super rich/ desperate who push the device over ride button
could consume at old normal settings & they will pay at
the higher tarif, whether society deems that 20% more, or
500% more ;-)
It will be interesting to design. we will need to design
international device id classification type non forgeable
electronic certification, non patented, public standard for
free interoperability between manufacturers.
Engineers will need some support & decisions from
Criminals will want to forge device classifications. One
example: What classification will power meters declare for
illegal marijuana growers (in underground concrete bunker
& in the loft) . Best their UV lights go out occasionally
too at peak demand, wont delay plant growth much. Some
already get caught by power monitoring. What will their
devices declare when there are Only smart meters, & no
dumb meters allowed ?