Experts, quick question. What equipment and rules do you need to setup in order to: detect a person enter the room detect a person leave the room count total # of person in the room basically I want to setup a rule so that whenever someone enter the room, turn the lights on, and turn lights off …

[quote=“geek, post:1, topic:16735”] whenever someone enter the room, turn the lights on, and turn lights off when exiting the room [/quote]This is typically done with simple motion sensing - just like in offices, which turn off lights when the room is empty (and occasionally leave you in a dark co…

Thanks all, and Brian! I didn’t think it would be difficult to do this at the beginning. I think two motion sensor would do right? Have the motion sensor mounted on both sides of the door, depending on which one triggered first, we will have direction, and the rest is the easy part, no? :blush:

I am quadriparetic, wheelchair dependent with limited and function, so I pay a lot of attention to the various hands-free control options. MOTION SENSORS HAVE A LOT OF FALSE ALERTS That said, in my own house I never use inactivity from motion detectors to turn lights off. They always fail at the w…

Thanks JDRoberts.The use case is simply convenience. After all, that’s what smart things are for, to me. Can you elaborate on motion sensor have lots false alerts? Is it that the motion sensor itself throw out false alert? Or it would be hard to implement logic like: if motion sensor 1 “active” + …

Typically cameras are connected by WiFi and home automation motion sensors are connected by a mesh protocol like zigbee or zwave. MESH IS CHEAP, BUT THERE’S A REASON Mesh has the advantage that it’s cheap in both dollars per device and energy draw per device. However, with a mesh network the mess…

THE EXPENSIVE INFRARED DOUBLE BEAM OPTION BTW, if you are serious about this and you are the home owner (not just renting) it can be done very nicely with a double set of trip beams at about shoulder height. (Think of the alarm systems in movies like Mission Impossible. Or for that matter the “obs…

Accurate Occupancy sensing is an area with tremendous potential uses. Perhaps a few of us “geniuses” :wink: should get together and design a system? One use case not reported, for example, is for fire safety. The first thing that firefighters do when arriving at a scene is determining if all occupa…

there is an interesting PIR type called “curtain” sensor, which reads two pretty-flat planes a couple degrees-angle apart. The planes are only 1-2 degrees wide. So by noting which plane is broken/hot first, you can get an indication of “moving left/into-the-room” or “moving right/out-of-the-room” …

If you’re trying to catch “going in” vs “going out” with two detectors most mesh based protocols (zigbee or zwave) may have a high failure rate because there’s no guaranteed sequencing in a mesh network. You can’t be absolutely certain which message will arrive first. Star topology is generally bett…

In room detection of Occupancy

Devices & Integrations

AndyRawson (Andy Rawson) May 18, 2015, 6:13pm 11

Not sure if this is what you are looking for but it sounds kind of like a “Wasp in a box” type of use.

Wasp in a Box Implementation - Virtual Occupancy by @Kristopher

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In room detection of Occupancy

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