Looking for smart lock, possibly DIY

[Pentanagon]

Hi,

 

I would like to lock and unlock the door leading to my room without having to stand up and walk there, so I basically need a smart lock. The thing is, it doesn't need to be very secure, after all it's just my room and not the door to the whole flat. I certainly won't be paying 200 bucks for a "real" smart lock, I thought about building one myself, preferably controlled by these:

 

https://www.amazon.de/Etekcity-Funksteckdosen-Fernbedienungen-Selbstlern-Funktion-2300/dp/B016I3TZ58/ref=sr_1_3?ie=UTF8&qid=1473880711&sr=8-3&keywords=funksteckdose

 

Any ideas?

[Cannibal Holiday]

If it's not really a smart lock, just get a servo, and arduino, and a length of rod to slip into a loop
Basic servo code is in the samples and you can just make a switch or a button that toggles the action on the servo