What to do with a bunch of wall boxes that are wired for 12V power?

Our new house has a fancy ADT alarm system that will shout out, if you want it to, when anyone opens a door. Presumably before this went in, the house also was equipped with an elaborate door alarm system for all of the doors leading to the back yard and pool. This would alert people in the house that, for example, a toddler was in danger of falling into the pool.

I’m not sure that the door sensors work anymore and, given that we have the elaborate ADT system, I don’t know why we would ever need these door/pool alarms.

We have four of these cluttering the walls of the house. Does anyone have a brilliant idea for what to do with a network of 1-gang boxes that are fed with 12V? There is no CAT 5 wire to the boxes.

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What’s a good PoE security camera?

We are soon to have an exciting power-over-Ethernet (PoE) switch. I need to run a Cat 5e wire (the punchdown block is Cat 5e so we’re sticking with old tech) out to the edge of the back yard to support a TP-Link Omada outdoor wireless access point (example). We have a Synology NAS, which can support IP cameras. I was thinking that it would make sense to run a second Cat 5e wire to support an IP camera to keep watch over the back yard.

In the unusual event that an actual bad person shows up (not to say “bad guy” because criminals may come in a rainbow of gender IDs), a camera that moves to follow them and turns on some little spotlights might scare them away. The Reolink RCL-823A seems to do all of this and Reolink cameras are purportedly compatible with Synology. The Amazon reviews are mixed, especially with respect to the auto tracking.

What else is there that might work, other than leaving a ferocious golden retriever to patrol the yard at night?

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The amazing survival story of an immigrant from Tijuana

The previous owners of our house didn’t want to bother taking the TVs off the walls so they left us with 6 TVs, one of which is actually outdoors under an overhang. It is a Samsung UN55D6000 made in Tijuana, Mexico in March 2011. Someone had cut a hole in the exterior concrete wall and wired a $5 extension cord down to an outlet in the hallway. The TV and cable box were plugged into this extension cord. I had an electrician clean up the situation recently and we found that the following still worked:

  • the TV part of the TV
  • the speakers
  • an HDMI input
  • a USB power output (keeping a Chromecast running)

After 11 years in the Florida heat and humidity and occasionally getting splashed by rain (only in very high winds), the immigrant is apparently thriving!

(It is conceivable that this 1080p soldier did not spent its entire career in the outdoor killing field. Perhaps this TV first served inside the house and was pushed out when the 65-inch 4K TV arrived in the family room.)

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Audio Pro, the Swedish alternative to Sonos for whole-house music

Whole-house music is great. Buying things from our Swedish brothers, sisters, and binary-resisters is great as a way of showing support for their courageous decision not to order lockdowns, masks, etc. These principles intersect in Audio Pro, a well-established Swedish company that transitioned from powered speakers to multi-room music in 2017.

At $129, the Audio Pro no-amp no-speaker Link 1 node is much cheaper than the Sonos Port ($449). Audio Pro seems not to make any direct competitor to the $699 Sonos Amp (the Wi-Fi node plus a 125W/channel stereo power amp to drive speakers; back-ordered until mid-August!). So you couldn’t have quite as clean an installation with Audio Pro because you’d have to add a small Class D amp to get comparable capability. I guess this makes sense because Audio Pro is all about powered speakers. Why would they want to make a box for fools who still own passive speakers?

Has anyone tried Audio Pro? The British magazine What HiFi? top-rates Audio Pro among Sonos competitors.

Sonos is winding down support for previous generation gear like what we own and we don’t have quite enough nodes for the current house so we need to eBay all of our Sonos stuff soon. Do we buy the latest Sonos products, showing our support for the Science-followers of Santa Barbara (they also have offices in Science-following Boston, Seattle, and San Francisco)? Or do we buy Audio Pro, saving some $$ and giving money to unmasked Fauci-deniers?

The reviews on Amazon suggest that Audio Pro’s multi-room system got off to a rocky start, but now works for most people. The reviews for Sonos are nearly all five stars.

One thing that is strange about Audio Pro is that the no-amp Link 1 device doesn’t have any inputs. Some of their speakers have RCA and 3.5mm inputs, but if you were trying to pull sound out of a legacy stereo system, there would already be speakers in that room. The Sonos Port is 3X the price, but it does have the line input that you’d expect.

Another area where the Sonos Amp and Port lead: buttons on the device to play/pause and adjust volume. Some of the Audio Pro speakers have a big array of buttons (including presets for radio stations), but the Link 1 lacks the basics that Sonos always includes. I don’t know why Audio Pro can’t just copy Sonos and make a clone of the Sonos Amp. The company knows how to make the streaming hardware and they know how to make power amps (or how to ask people in China to make them!).

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How to use a television as a digital picture frame? (2022 edition)

From 2012, Best LCD television for use as a digital photo display?:

  • must be programmable so that it comes on in “photo display” mode so that there is no need to monkey with a remote control after a power failure (or maybe default to photo display mode if a USB stick is plugged in); I have found the deep menus of modern HDTVs to be truly painful
  • must be programmable to shut itself off at midnight, for example, and back on at 8 am (to save power)
  • must be daylight-viewable (means LCD is better than plasma?)
  • must have low power consumption (implies LED-lit)?
  • [2022 addition] keep each image up for at least a few minutes

From 2010, Why don’t people use a small TV as a digital picture frame?

From 2014, Can Google Chromecast do a simple slide show?

What’s the answer to these questions today? I talked to some A/V installers who charge over $100,000 for a typical home setup and they couldn’t think of any way to have a TV turn itself on at the same time every day and start showing images of the consumer’s choice. Their only idea was the LG Gallery TV, but I think that is designed to show art and images from LG’s servers, not your own USB stick or local NAS share. Also, supposedly it is impossible to change the settings for transitioning from image to image, including both effects and timing.

I looked at the manual for the latest and great “Evo” LG OLED TV. It seems to have the same limitations as when I looked at Samsung and LG 10 years ago. The TV can turn itself on at the same time every day and tune to a particular channel or display a particular HDMI input.

(i.e., if you had a dongle that continuously went through the contents of a USB stick and turned it into 4K video, the TV could be programmed to show it)

How about the $4,300 Samsung “The Frame” TV? It doesn’t have an “on timer”, only an “off timer.” (But in theory it can turn itself on automatically via a motion detector?) It sounds as though displaying your own pictures can be done, but via a tedious importation process of one image at a time.

How about a $7,000 Sony 8K Mini LED TV that isn’t even available yet? The web-based manual suggests that it offers the same features as LG, i.e., to turn on and tune to a channel or input.

Since the TVs won’t do this for the $thousands that have been handled over by consumers, what about the dongle feeding an HDMI input idea? A December 2020 article on the subject says the dongles are called “media players” and describes the “Micca” product line, but these are limited to a feeble 1080p. The Amazon Fire TV stick might be able to do it with a cheap app that pulls images from Flickr. It will generate a 4K signal. China comes to the rescue with Rikomagic’s mini PCs and Android devices, sometimes with various apps, e.g., that can pull from Dropbox. All of Rikomagic’s products seem to have 4K HDMI output. I can already feel the pain of more devices to maintain, though, and also see this getting stuck and having to be rebooted. Not to mention lots of extra wires and periodic removal of the TV from the wall to get to the dongle, etc.

At this point, you’re thinking “Of course, the TVs can’t do this because who besides a handful of digital SLR nerds would ever want this?” In fact, however, a huge number of TVs are purchased for this exact role… in-store advertising, a.k.a., “digital signage.” Because, apparently, you can’t plug in a USB stick and have the TV do the rest, there are a lot of vendors happy to sell you the few lines of software that Samsung, LG, and Sony left out. Rise Vision is an example and it seems to be priced at about $120 per year per TV (i.e., over the life of a mid-priced mid-sized TV, more will be paid to Rise Vision than to the TV manufacturer).

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Xfinity xFi Pods mesh network review

One of the worst things about having moved from an apartment to a single-family house is that we were kicked out of the AT&T fiber 1 Gbps symmetric paradise and plunged into the dark pit of Xfinity cable Internet service (more money, 1/30th the upload speed). The good news is that the xFi Gateway (modem/router/WiFi base station) seems to provide reasonably good service through three walls, at least when one is not experiencing a complete service outage from Comcast. Beyond three walls it gets dicey and our old-school laser printer requires a Cat 5 connection.

Enter the xFi Pods. This is an official ISP-sold and -supported tri-band mesh network. Even more exciting, the pods include RJ45 jacks for dinosaurs who have laser printers requiring Cat 5 connections. At two for $200, the price is lower than shutting down the Xfinity WiFi network and building a new network with Eero or Netgear or similar. Carriers need to make everything idiot-proof so I imagined that setup would take mere minutes.

In case it helps others, this post is to report that the Xfinity system is

  • about one hour to set up (multiple attempts at configuration and repeating the same process about 6 times finally resulted in the Pods both affiliating with the Gateway)
  • not great at connecting clients to the closest wireless access point to the point that a phone will drop off WiFi altogether because it was trying to connect to the far-away Gateway and never discovered the alternative of a nearby Pod
  • prone to complete failures where both Pods will be offline and the only way to fix is to unplug everything, including the Gateway, and apply power sequentially

This is on top of the overall fragility of Xfinity, which fails at unpredictable times and fails hard after brief power outages (power cycling the gateway is insufficient; one needs to call Comcast and have them send a reset signal).

On the plus side, the Xfinity app is easy to use and it is easy to see which devices are connected to which access point (Pod or Gateway). Also, the Xfinity app gives you alerts when someone new connects.

With or without Pods, a deficiency of the whole Xfinity system is that, unlike with AT&T and Verizon fiber standard gear, there is no way to set up a guest network. Every service person who comes to the house will need to be supplied with your private network password (since Verizon doesn’t see fit to cover Jupiter, Florida, except on its fictional coverage map).

Here’s a question for network nerd readers: does the heavily promoted WiFi 6 standard have better protocols for ensuring that a client, e.g., smartphone, is always connected to the best wireless access point in a multi-point (but same SSID) system?

Related:

  • UniFi versus Araknis versus Ruckus (updated to reflect the fact that a lot of this stuff is certified to work only up to 40 degrees C and therefore shouldn’t live in an unairconditioned garage)
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Coat the garage floor with polyaspartic or epoxy? Put in an air conditioner?

For the first time in my life, I live in a house with a reasonably nice garage. The floor is a concrete slab poured in 2003. For a lot of neighbors, however, this is apparently not sufficient. Because there are no basements in Florida, the garage is a critical storage facility and also sometimes the home of N-1 or N-2 cars (where N is the theoretical capacity of the garage in cars).

Does it make sense to put in a plastic floor? The cost is about $2,700 for a polyaspartic floor, which dries quickly and therefore enables the contractor to show up from 9 am to 2 pm and the homeowner to put everything back into the garage by 3 or 4 pm. The old religion was epoxy, which I think resulted in two days of downtime for the garage and two visits by the contractor, but Science now says that polyaspartic is better?

Readers who’ve done this: Why? And what material?

Also, I’m thinking that items stored in the garage will be in better shape if the temperature and humidity are limited to some extent. It will also help with my dream Internet system since the CAT5 wires all come back to a panel in the garage and typical modems and routers are rated to operate at temperatures no higher than 40C (104 degrees in the units that God prefers). Does it make sense to try to keep the garage to a maximum of 85 or 90 degrees with a split system?

Finally, if polyaspartic is the right choice, what color? The exterior has a lot of beige and the garage door is brown, so I was thinking of “Saddle Tan”. On the other hand, most of the ones that I’ve seen are gray (e.g., “Midnight” or “Smoke” below). “California Gray” can be ruled out since we don’t want to have to wear masks and show our vaccine papers in the garage. There is no “Blue Steel” or “Magnum”, sadly.

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Department of First World Problems: the Tile tracker system

One of the good things about Florida is that you can walk out of your apartment or house without bothering to put on shoes or more clothing than gym shorts and a T-shirt. The downside is that you are often leaving wallets and keys somewhere inside, thus leading to a search challenge a few hours later when it is time to drive to a restaurant. Also, your typical Floridian may have at least three vehicles for which keys are required: car, pickup, golf cart. Putting these all on one huge keyring is cumbersome.

The New York Times/Wirecutter says that the choice of tracker should be limited to Apple AirTag and Tile.

If you’re already paying $1000+ per year to be part of the Apple ecosystem, why not Apple AirTags? They’re great if you lose things outside of the house because there are so many other people paying $1000+ per year to be part of the Apple ecosystem. They’re bad in every other way, though. You can’t put them on an existing keychain because there is no hole in an AirTag. You can’t put them in your wallet because there isn’t a version that is shaped like a credit card. The AirTag’s speaker isn’t as loud. If a heretic in your house decides to use Android, he/she/ze/they won’t be able to locate anything that is attached (using a proprietary Apple keychain that costs $29 to $449) to an AirTag.

The advantages of Tile:

  • thoughtful physical packaging (e.g., a hole for your existing keyrings)
  • no need to buy all new keyrings, wallets, etc.
  • a variety of physical packages (e.g., a “thick credit card” for your wallet, a small cylinder with included adhesive for sticking to TV remotes and similar)
  • there are a lot of devices that are already “tile enabled”. Laptops from HP, Dell, Lenovo, ASUS, for example
  • louder speaker to facilitate finding within the house or yard
  • multi-platform
  • press button on Tile to make your phone sound an alert even when it is on silent (i.e., if you’ve found your keys or wallet it will be easy to find your phone)
  • lifestyle video advertising the product includes a golden retriever on the couch (sadly, lower down on the page is a photo of a hipster)

With Apple there is no subscription service offered. With Tile you can use all of the core services without paying, but if you pay $30 per year (free for the first year) you get more location history, free battery replacements, and some insurance for lost items.

It took me about 5 minutes to download the Tile app for the iPhone, create and verify an account, and activate the the first tile. Additional tiles take about 1 minute to activate. Giving a tile a custom name, e.g., “Awesome Honda Odyssey Keys” instead of “Keys” takes a scroll and an extra press or two (would be nice if this were an option when activating, which it is if you select the “Other” category). The tiles are pretty rugged. I crammed one into the clip of a Stanley FatMax contractor-grade tape measure, which also includes a strong magnet, and it works perfectly. They’re spec’d to handle immersion in water for up to 30 minutes (IP67).

Now that I’ve played with the system one question that jumps out is “Why don’t car keys, all of which already have batteries, come with Tile built in?” Surely Honda, GM, Toyota, and Ford don’t want consumers to lose their keys. The list of Tile partners is extensive so plainly it wouldn’t be tough from a business or technical point of view to integrate Tile.

More: thetileapp.com

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UniFi versus Araknis versus Ruckus

Our old apartment was small enough that the AT&T Fiber-supplied modem covered the entire space with awesome WiFi. The new house is just a little too big for a single base station to cover reliably and is currently suffering from Xfinity cable Internet with two Xpods (Comcast’s own mesh networking device, comparable to Eero; so we have three access points including the modem/base). The system does not seem reliable and oftentimes devices are not connected to the nearest pod, but rather are trying to talk to the base station.

The house was built in 2003 and has a fair number of CAT5 runs, many of them never terminated. My plan is the following:

  • return the rented Xfinity modem/WiFi router and replace with a Motorola MB8611 that can be mounted to a wall near where the cable comes in and the CAT5 wires gather (don’t want to put this in a cabinet because it can draw 15 watts)
  • install a compact 16-port Power-over-Ethernet switch in the A/V wall cabinet where the CAT5 wires come in (the cabinet is 14″ wide by 19″ high and 3.5″ deep; it has a cover that can be left off for cooling, but has no provision for airflow); The UniFi Switch Lite is an example of something that would fit (only 7×7″) and will drive half the ports with power.
  • give the Xpods away to a neighbor
  • install three WiFi access points inside the house and one outside, all driven by PoE; maybe something like the UniFi “mesh” access point?

The neighborhood is packed with busy physicians and dentists who apparently aren’t capable of watching TV or getting an iPhone online without significant assistance. (By contrast, none of our neighbors in the apartment building reported any trouble getting everything that they wanted from AT&T!) It is common to see A/V service providers’ trucks, therefore, and when I ask them what they install for network hardware the answer is always “Ruckus and Araknis,” never the brands that I’ve used before (Cisco, Netgear, Linksys). One installer said that the Ruckus gear is used by municipalities to provide public WiFi (not by the Palm Beach County Schools, apparently, since the other night the guest network was non-functional and also Verizon mobile data was unusable, as is typical in Jupiter) and that he likes it because his company logs in every morning to each client’s house to make sure that all of the equipment is operating properly and has the latest software updates applied.

Readers who are networking experts: What is the correct solution for a standard McMansion like ours? UniFi, Araknis, Ruckus, or “other”? We don’t want to pay an A/V firm to log in every day and, in fact, don’t need any capability of remote management (though maybe it would be nice if we have a house-sitter and the network fails?).

A Reddit thread on this subject:

Ruckus is professional wireless networking. Good stuff but you pay for it.

As for Araknis I have to ask how you even heard of it. Are you dealing with an A/V installer? If so they are trying to scam you. Araknis is mediocre quality gear sold only through “dealers” at crazy prices. They target people who want to throw money at problems instead of doing any research.

An advantage of UniFi for me is that a friend has a big setup and is an expert on configuration. At a minimum, I think that I want to pay an A/V company to do the CAT5 terminations and clean-up in the A/V cabinet. A degree in electrical engineering does not imply skill at CAT5 crimping compared to someone who does it all day every day.

From a security point of view, is remote management a feature or a bug? Xfinity can presumably log every web site that we visit, but why create additional opportunities for individuals or governments to see that, for example, household members are viewing misinformation on a Muskified Twittter?

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Laptop with off-center keyboard due to numeric keypad

After digesting reader advice in response to What is the best 15-16-inch laptop right now? I decided to go with the $1200 LG Gram 16 2-in-1 from Costco. I’m setting it up now and already somewhat at war with the device because the keyboard is off center. Why isn’t the QWERTY keyboard that I want to use in the middle of the device? Because LG crammed in a numeric keypad, which I will never use.

For the Apple zealots, I will note that even their biggest (16″ pro) has the keyboard smack in the center:

They don’t bother with a numeric keypad because bookkeepers aren’t going to need a $3,000 notebook computer.

Who has used a laptop with an off-center keyboard like this? Did you get used to it?

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