Pi controlled multiple solar charged lamps project

[Neonking2]

I need help with a project i am working on,
My elderly mother has a large “LARGE” back garden and would like to place lights around the perimeter fence, that she can turn on and off at will ,
LARGE= 12 hectares
Building individual lamps looks to be the most cost effective way to do this for her .

I want to turn off/on a solar powered light,

I’d like the light to have gps location or mobile tracking “THIEVES KEEP STEALING HER STUFF”

I’d like the light to look after charging and maintaining of the batteries

Hopeing a number of raspberry pi’s would do this or one pi and a number of repeaters etc

I’d also like to add and remove lights at will and not have to reconfigure stuff, “mesh network”

Now that being said I am complete novice ,
I’ve played around with a pi for gaming. But that’s it

My current lamp is a 3.7 v led a 12000mah battery and my solar panels are 18v,
But I could change these if it simplifies the build,

Anybody have idea on what parts I’d need , or whom to talk to in the industry that could help,

Many thanks in advance guys.

I am based in Durham in the north east of England and my search for a makers fair/club hasn’t been fruitful.

Many thanks for reading this post
And thanks in advance for any help provided .

[jayben]

What you are proposing is complicated, expensive, and well worth stealing!

I'd take the opposite tack, and modify some dirt cheap solar lights to include a simple 433 or 868 MHz wireless module from RF Solutions https://www.rfsolutions.co.uk/ They'll have much lower power consumption & greater range than WiFi.

To address the concern about burglars, you could fit a trembler switch (or accelerometer) to transmit an alarm signal if a light is moved; fit one to a gate, and it'll trigger if opened, or climbed over.

The master unit in the house could use a Pi, or in its simplest form, could just be a wireless module with switches and an alarm buzzer.

Sorry this doesn't include GSM and/or GPS tracking, but I think if you invented a cheap way of adapting solar lights to make a wide-area security system, plenty of people would be interested.

[Neonking2]

I hadn’t even considered useing that kinda of route and it may be just the thing.
Any good resources to brush up on how to use the 868 free modules,

Many thanks

[jayben]

I don't know of any specific information, but when searching for it, the first decision you'll face is whether to use general-purpose communications between the units (e.g. emulating a serial link), or just use simple on/off commands from a controller to I/O pins on the module.

The former could be an interesting technical project; and a fun introduction into embedded system programming, but you may be surprised how complex it gets. If you want to get up and running quickly, I'd suggest you start with the latter, since it saves a lot of work; for example something as simple as a keyfob on/off controller (e.g. https://www.rfsolutions.co.uk/remote-co ... ystem-p848 or an equivalent on Ebay or Alibaba)) then maybe later add a transmitter module to the lamp for theft detection.

[Neonking2]

the former with just input and output from the io pins via relays