Home Automation

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Home automation is the residential extension of building automation.

It is automation of the home, housework or household activity.

Home automation may include centralized control of lighting, HVAC (heating, ventilation and air conditioning), appliances, security locks of gates and doors and other systems, to provide improved convenience, comfort, energy efficiency and security.

Warning: Working with electricity can result in injury, property damage, or even death if it is not done properly. Please keep this in mind while assisting others. If you are not sure about what you are doing, hire a licensed professional.

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Hacking cheap smart switches to work off grid (12 volts)? (alien.top)

submitted 2 years ago by Mortattoo@alien.top to c/homeautomation@selfhosted.forum

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I bought a bunch of cheap smart switches over the last few weeks and was wondering if anyone has managed to get these to work on a 12 volt dc system rather than the 100-265v ac system they are designed for?

Or, if there is one, can point me in the direction of a tutorial that might shed some light on this idea?

The router I have is a 9 volt in and the LED lights i have are already hacked or designed to run at 12v.

The "brains" of the switches appear to have a 3.3 vdc input so I think it shouldn't be too hard, right?

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[–] crankyjaaay@alien.top 1 points 2 years ago

Open it up and wire in a buck converter to take 12v down to 9v

With your battery set up, you should size the converter to be able to handle up to 15v of input power; this is important if you need it to run while the battery is charging.