3 ms·
I can't imagine how much energy is wasted on what should be, a trivial thing that might run on a 9v battery for 10 years, or, like I had in a house I owned, a d
by CrzyLngPwd 26d ago
I can't imagine how much energy is wasted on what should be, a trivial thing that might run on a 9v battery for 10 years, or, like I had in a house I owned, a door bell that uses no battery at all...just a rope and a bell.
- bharatsuthar 26d agoMaybe I'm just too primitive but I let dogs handle it. I homestead in a remote Indian village and many stray dogs I look after instinctively take care of my property. There are false positives sometimes but that's okay. I like it when they alert me for potential small intrusions around my house, like snakes, monitor lizards etc.
- sph 26d ago> many stray dogs I look after instinctively take care of my property Their ancient wolf-dog ancestors howl with approval. That's why we domesticated them after all.
- DarmokTanagra 26d agoWait until you hear about the data centers worth of cat pictures we generate as a species.
- xxs 26d agoThe activation, door knob can be trivially implemented with just piezo-crystal pulse and some radio (433MHz). No battery required, either.