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Remotely operated lights on switch

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Hextejas:
I want to build one as it will keep my significant other happy. When she gets home at night she needs a device to be able to turn on the exterior lights which run at 120v AC.
I suspect that there are already devices that will do this but I want to build one from scratch. IE, make the PCB, solder it, etc.

Does anyone know of such a device ?

thanks

james_s:
You can get plenty of different key fob style RF remote modules from China, it would be easy enough to build something with the receiver controlling a relay. If you want to build the entire system from scratch that's going to require a good bit of RF knowledge. Of course a complete ready made solution is only about $10.

Hextejas:
Thank you James I just saw a bunch of them and they are really cheap.
So, I think I will buy a ready made kit.

djacobow:
With RF modules and a relay and an external power supply, it's dead easy. Too easy: relay, usb psu, esp8266, hookup wire.

Raise the challenge by using triac and putting the psu on the board. Do multiple channels. Measure current to send an email if the light seems to be burned out.

Don't forget safety, protection, creepage, etc. Imagine doing this not for yourself but to give to a total stranger who your device just might kill.

Raises the project bar significantly, if you're into that sort of thing. :-)

james_s:
Also do be careful with anything wired into the house. As much as I hate the state of things with this, you do have to keep liability in mind. If you have a fire and the insurance investigators figure out you've wired in some kind of homemade electrical contraption they'll be quick to try to blame that and you could be faced with proving your gadget wasn't responsible.

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