If there's no ground then I'd immediately contact an electrician and get a quote to replace all the wiring. The existing wiring is likely unsafe, especially with the amount of power pulled by modern devices (old electrical wiring wasn't designed with that much power usage in mind!)

Also get them to take a look at the main electrical panel and ensure it's okay.

My house was built in the 1960s, but the wiring was redone at some point by a previous owner. The 100 amp main panel was still original though, and it was a brand that was known for issues. I had it replaced with a new 200 amp panel.

I would really recommend fixing the wiring before investing any money in home automation.

Don't build advanced sensitive low voltage systems on top of shaky high voltage systems that can melt and destroy them. Not having enough outlets because of old shoddy wiring is inconvenient when you can't plug stuff in and waste time running extension cords, it's expensive because you end up buying that much copper to run extension cords, it's expensive because shoddy wiring can easily fry electronics, and it's tragic and expensive when it burns your house down.

I would urge you to have an electrician sort out your electrical issues first.

I helped a friend gut and rewire his kitchen and besides not being grounded, the wiring was very poorly done. I told him it was a miracle he didn't have a fire.

Their microwave would flip a breaker if anything else was on in the kitchen. I traced the circuit to a pull string light in the basement. The ENTIRE kitchen circuit was passing through a rusty old screw terminal on the light fixture. The wire's sheathing had completely melted back exposing 4" of bare hot wire.

Don't trust that old wiring at all. And if you can't afford to fix it asap, at least stock up on smoke alarms and have an escape plan.