81–90 of 90 posts
When I was in the CS department at NMSU, the Computer Science building was open to the public 24-hours a day. I suppose that's not commonly the case nowadays.
Source: Currently in the building.
I swear to God that all of these CS labs at different unis look the same. I am getting flashbacks of labs in Toronto that looked exactly like pictures in the post
Another solution in the age of portable electronic devices: detect presence based on active DHCP leases. You can let then people register themselves by MAC on some web portal so they can be visible by name if they're comfortable with that.
Or Bluetooth. There are some problems (like MAC randomization) to get a real tracking with BLE, but to have a rough estimation, it's a good technique. And you can do it with just an ESP32.
How many BT devices is the average student or faculty member toting around with them at a given point?
Could conceivably be 4+ with some combination of: phone, smartwatch, tablet, BT speaker, game device, etc.
Earlier quoted context omitted.
Or Bluetooth. There are some problems (like MAC randomization) to get a real tracking with BLE, but to have a rough estimation, it's a good technique. And you can do it with just an ESP32.
Hmmm... interesting. How would that work? Just count the number of BT signals in a room? How many BT devices is the average student or faculty member toting around with them at a given point? Could conceivably be 4+ with some combination of: phone, smartwatch, tablet, BT speaker, game device, etc.
A better method would try to correlate not random MAC addresses (headphones, BLE trackers, wearebles, etc) that are frequently together and mark as a single person.
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You can read and write HA entities via HTTP API so I think you could have done this with nothing but HA, but either way it's a fun project :) One of my more fun HA project was scraping my snow removal service's tractor tracking API and passing the result for the closest tractor into HA so I can be notified (by voice with Alexa and/or push notification) when there's one nearby in case I need to move the car.
Do you mean outside of the API that I talk about in the article? If I exposed the HA API via the frontend, users would be able to just take the bearer token and do whatever they wanted with it (even deleting the entities used for the doors). That's why the express server is sitting in the middle to only expose the relevant information (proxying w/ the bearer token, which the end users have no access to)
https://www.home-assistant.io/docs/automation/trigger/#webho...
I guess you'd still want a proxy or firewall so not sure it ends up being much less complex, but it should be doable.
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These are CS students, not MEs. Which is to say, heathens who have yet to accept our lord and savior Duct into their hearts. (And its latter day saint WD-40)
I thought wd-40 had been cast down in favor of silicon spray?