Oh ok well id like a robot to let my dog in and out. It would have to be able to open an close the door by recognizing her bark, im thinking like voice activated but in this case itd be bark activated lol. See she is 13 and like any old person she has to pee like 20 times a day now instead of just going out a few times a day like when she was younger. It would also have to be able to recognize that shes all the way out the door or all the way in because like any old person shes also really slow sometimes lol. So some sorta motion sensor or whatever would be a must. Im picturing it as a simple unit that just mounts on the corner of a door. Having it be fairly universal to most doors would be good too bc people arent gunna wanna pay to have their whole door replaced...
This is probably a bad idea but i think its along the lies of what you mean. be sure to keep us updated on it because it sounds like itll be cool whatever you end up doing!